Micro-arc oxidation （MAO） process was cartied out in an optimized dual electrolyte system to fabricate a compact, smooth, and corrosion resistant coating on ZK60 Mg alloy. The microstructural characteristics of coat...Micro-arc oxidation （MAO） process was cartied out in an optimized dual electrolyte system to fabricate a compact, smooth, and corrosion resistant coating on ZK60 Mg alloy. The microstructural characteristics of coating were investigated by scanning electron microscopy （SEM） coupled with an energy dispersive spectrometer （EDS） and X-ray diffraction （XRD）. Test of mass loss was conducted at a 3.5 % NaCl solution to assess the resistance to corrosion. The bonding strength between the coating and ZK60 substrate was evaluated using scratch experiment. The results reveal that MgA1204 and MgO are the main phases of ceramic coating obtained in the dual electrolyte system. The corrosion rate of coating prepared in the optimized dual electrolyte is only 0.0061 g.m-2.h-1, which demonstrates excellent corrosion resistance. This is mainly due to the compact, uniform coating with high bonding strength.展开更多
A new equation of state(PHSMSA EOS)based on perturbation theory is developed for calculating high-pressure phase equilibria of aqueous electrolyte systems containing supercritical gases,light hydrocarbons andpolar com...A new equation of state(PHSMSA EOS)based on perturbation theory is developed for calculating high-pressure phase equilibria of aqueous electrolyte systems containing supercritical gases,light hydrocarbons andpolar components.The binary interaction parameters are determined:for ion-ion pairs by regression of ionicactivity coefficient data;for molecule-molecule pairs by fitting the VLE data of binary nonelectrolyte mixtures;and for ion-molecule pairs by fitting the gas solubility data of ternary gas-water-salt systems.The new EOShas been tested on the prediction of solubilities of methane,nitrogen and natural gas mixtures in brine.Sat-isfactory agreement with the experimental data measured by authors and other investigators is observed.展开更多
Enabling highly reversible sodium(Na) metal anodes in a polymer electrolyte(PE) system is critical for realizing next-generation batteries with lower cost,higher energy,and improved safety.However,the uneven Na deposi...Enabling highly reversible sodium(Na) metal anodes in a polymer electrolyte(PE) system is critical for realizing next-generation batteries with lower cost,higher energy,and improved safety.However,the uneven Na deposition and high Na/PE interphase resistance lead to poor reversibility and short cycle life of Na metal anodes.To tackle these problems,here a variety of metal nanoparticles(M-np,M=Al,Sn,In or Au) are deposited onto copper(Cu) foils to synthesize binder-free M-np@Cu substrates for Na plating/stripping.Notably,the Au-np@Cu substrate provides abundant preferential nucleation/growth sites,decreasing Na nucleation barrier and thus promoting uniform Na deposition.Accordingly,stable Na metal anodes are achieved with high reversible capacities,long cycle life,and high usage of Na.With the Au-np@Cu/Na anode and PE,the full cell using a commercial bulk sulfur cathode exhibits a reversible capacity of>400 mAh g^(-1) with near-100% Coulombic efficiency over 200 cycles.展开更多
The application of Pr-Nd-Dy alloy in the field of high-performance Nd-Fe-B permanent magnet materials has great potential.The composition of the PrF_(3)-NdF_(3)-DyF_(3)-LiF(PND-LiF) electrolyte system used in the prod...The application of Pr-Nd-Dy alloy in the field of high-performance Nd-Fe-B permanent magnet materials has great potential.The composition of the PrF_(3)-NdF_(3)-DyF_(3)-LiF(PND-LiF) electrolyte system used in the production of Pr-Nd-Dy alloys,the distribution of F,Li,RE and other elements in the electrolyte and their occurrence state were studied in this paper.The effect of temperature and lithium fluoride addition on electrolyte conductivity was revealed using the continuous conductivity cell constant(CVCC) method.The thermal analysis method was used to study the influence of lithium fluoride addition on the electrolyte’s liquidus temperature and the optimal process conditions for the production of Pr-Nd-Dy alloy were determined.The results show that the overall distribution of praseodymium neodymium fluoride and lithium fluoride is uniform in the electrolyte and dysprosium fluoride is distributed between praseodymium-neodymium fluoride and lithium fluoride.Praseodymium-neodymium oxide is embedded in praseodymium neodymium fluoride in spotty pattern.The electrolyte’s conductivity is increased as the temperature and lithium fluoride addition are going up,while the liquidus temperature is going down with increasing lithium fluoride addition.The best electrolysis process conditions for the PND-LiF system to produce praseodymium neodymium dysprosium alloy are as follows:temperature1050℃ and 15.56 wt% PrF_(3)-62.22 wt% NdF_(3)-11.11 wt% DyF_(3)-11.11 wt% LiF.展开更多
Electrode material is one of the most important factors affecting the performance of supercapacitors, and electrolyte solution is another. In this work, electrochemical properties of hydroxide zinc carbonate composite...Electrode material is one of the most important factors affecting the performance of supercapacitors, and electrolyte solution is another. In this work, electrochemical properties of hydroxide zinc carbonate composite electrode (HZC) in KOH + K3[Fe(CN)6] electrolyte were studied. It was proved that [Fe(CN)6]3−in electrolyte participated in electrochemical reactions and promoted electron transfer. The specific capacitance of HZC electrode was as high as 920.5 F·g−1 at 1.0 A·g−1 in 1 mol·L−1 KOH and 0.04 mol·L−1 K3[Fe(CN)6] electrolyte, which is 172.9% higher than that in KOH. The combination of HZC electrode and low alkalinity aqueous electrolyte provided the supercapacitor system with good capacitance performance, safety, and environmentally friendly.展开更多
Proton exchange membrane fuel cells (PEMFCs) provide an appealing sustainable energy system,with the solid-electrolyte membrane playing a crucial role in its overall performance.Currently,sulfonated poly(1,4-phenylene...Proton exchange membrane fuel cells (PEMFCs) provide an appealing sustainable energy system,with the solid-electrolyte membrane playing a crucial role in its overall performance.Currently,sulfonated poly(1,4-phenylene ether-ether sulfone)(SPEES),an aromatic hydrocarbon polymer,has garnered considerable attention as an alternative to Nafion polymers.However,the long-term durability and stability of SPEES present a significant challenge.In this context,we introduce a potential solution in the form of an additive,specifically a core–shell-based amine-functionalized iron titanate (A–Fe_(2)TiO_(5)),which holds promise for improving the lifetime,proton conductivity,and power density of SPEES in PEMFCs.The modified SPEES/A–Fe_(2)TiO_(5)composite membranes exhibited notable characteristics,including high water uptake,enhanced thermomechanical stability,and oxidative stability.Notably,the SPEES membrane loaded with 1.2 wt%of A–Fe_(2)TiO_(5)demonstrates a maximum proton conductivity of 155 mS ccm^(-1),a twofold increase compared to the SPEES membrane,at 80°C under 100%relative humidity (RH).Furthermore,the 1.2 wt%of A–Fe_(2)TiO_(5)/SPEES composite membranes exhibited a maximum power density of 397.37 mW cm^(-2)and a current density of 1148 mA cm^(-2)at 60°C under 100%RH,with an opencircuit voltage decay of 0.05 m V/h during 103 h of continuous operation.This study offers significant insights into the development and understanding of innovative SPEES nanocomposite membranes for PEMFC applications.展开更多
Solid-state batteries(SSBs)are widely regarded as promising candidates for next-generation energy storage systems due to their inherent safety and high energy density,making them ideally suited for transportation appl...Solid-state batteries(SSBs)are widely regarded as promising candidates for next-generation energy storage systems due to their inherent safety and high energy density,making them ideally suited for transportation applications such as electric vehicles.While extensive efforts have been devoted to developing solid-state electrolytes(SSEs)with high ionic conductivity and broad electrochemical stability windows,the cycling life and power density of SSBs still fall short of commercial requirements.These limitations are primarily attributed to electrochemical and mechanical failures at the interfaces during battery operation.The overall performance of SSBs is not solely determined by the properties of the SSEs themselves,such as conductivity and stability,but is critically influenced by the interfacial compatibility between the SSEs and the electrodes(both cathode and anode),as well as the interparticle interfaces within the electrolyte.Therefore,advancing interfacial engineering and enhancing ion transport across these interfaces are essential for the continued development and practical deployment of SSBs technologies.展开更多
Lithium-ion batteries(LIBs),while dominant in energy storage due to high energy density and cycling stability,suffer from severe capacity decay,rate capability degradation,and lithium dendrite formation under low-temp...Lithium-ion batteries(LIBs),while dominant in energy storage due to high energy density and cycling stability,suffer from severe capacity decay,rate capability degradation,and lithium dendrite formation under low-temperature(LT)operation.Therefore,a more comprehensive and systematic understanding of LIB behavior at LT is urgently required.This review article comprehensively reviews recent advancements in electrolyte engineering strategies aimed at improving the low-temperature operational capabilities of LIBs.The study methodically examines critical performance-limiting mechanisms through fundamental analysis of four primary challenges:insufficient ionic conductivity under cryogenic conditions,kinetically hindered charge transfer processes,Li+transport limitations across the solidelectrolyte interphase(SEI),and uncontrolled lithium dendrite growth.The work elaborates on innovative optimization approaches encompassing lithium salt molecular design with tailored dissociation characteristics,solvent matrix optimization through dielectric constant and viscosity regulation,interfacial engineering additives for constructing low-impedance SEI layers,and gel-polymer composite electrolyte systems.Notably,particular emphasis is placed on emerging machine learning-guided electrolyte formulation strategies that enable high-throughput virtual screening of constituent combinations and prediction of structure-property relationships.These artificial intelligence-assisted rational design frameworks demonstrate significant potential for accelerating the development of next-generation LT electrolytes by establishing quantitative composition-performance correlations through advanced data-driven methodologies.展开更多
Aqueous alkali metal-ion batteries(AAMIBs)have been recognized as emerging electrochemical energy storage technologies for grid-scale applications owning to their intrinsic safety,cost-effectiveness,and environmental ...Aqueous alkali metal-ion batteries(AAMIBs)have been recognized as emerging electrochemical energy storage technologies for grid-scale applications owning to their intrinsic safety,cost-effectiveness,and environmental sustainability.However,the practical application of AAMIBs is still severely constrained by the tendency of aqueous electrolytes to freeze at low temperatures and decompose at high temperatures,limiting their operational temperature range.Considering the urgent need for energy systems with higher adaptability and resilience at various application scenarios,designing novel electrolytes via structure modulation has increasingly emerged as a feasible and economical strategy for the performance optimization of wide-temperature AAMIBs.In this review,the latest advancement of wide-temperature electrolytes for AAMIBs is systematically and comprehensively summarized.Specifically,the key challenges,failure mechanisms,correlations between hydrogen bond behaviors and physicochemical properties,and thermodynamic and kinetic interpretations in aqueous electrolytes are discussed firstly.Additionally,we offer forward-looking insights and innovative design principles for developing aqueous electrolytes capable of operating across a broad temperature range.This review is expected to provide some guidance and reference for the rational design and regulation of widetemperature electrolytes for AAMIBs and promote their future development.展开更多
Aqueous zinc-ion batteries(AZIBs)have garnered considerable attention as promising post-lithium energy storage technologies owing to their intrinsic safety,cost-effectiveness,and competitive gravimetric energy density...Aqueous zinc-ion batteries(AZIBs)have garnered considerable attention as promising post-lithium energy storage technologies owing to their intrinsic safety,cost-effectiveness,and competitive gravimetric energy density.However,their practical commercialization is hindered by critical challenges on the anode side,including dendrite growth and parasitic reactions at the anode/electrolyte interface.Recent studies highlight that rational electrolyte structure engineering offers an effective route to mitigate these issues and strengthen the electrochemical performance of the zinc metal anode.In this review,we systematically summarize state-of-the-art strategies for electrolyte optimization,with a particular focus on the zinc salts regulation,electrolyte additives,and the construction of novel electrolytes,while elucidating the underlying design principles.We further discuss the key structure–property relationships governing electrolyte behavior to provide guidance for the development of next-generation electrolytes.Finally,future perspectives on advanced electrolyte design are proposed.This review aims to serve as a comprehensive reference for researchers exploring high-performance electrolyte engineering in AZIBs.展开更多
Lithium-mediated nitrogen reduction reaction(LMNRR)is a promising route for sustainable ammonia synthesis,but the generation of excessive solid electrolyte interphase(SEI)severely limits its efficiency.Here,we tackle ...Lithium-mediated nitrogen reduction reaction(LMNRR)is a promising route for sustainable ammonia synthesis,but the generation of excessive solid electrolyte interphase(SEI)severely limits its efficiency.Here,we tackle this challenge by introducing n-hexane as an electrolyte additive to weaken LiClO4 ionization,achieving minimized dissociation via squeezed solvation shells with compact ion pairs.Molecular dynamics simulations and experimental characterizations reveal that n-hexane enriches anion coordination around Li+,endowing the electrolyte with robust anti-reduction capability.This suppresses SEI overgrowth,reduces interfacial resistance,and accelerates N2 diffusion.Consequently,a thinner,inorganic-rich SEI is formed,enabling high nitrogen flux and rapid active Li3N generation kinetics.Consequently,the proof-of-concept system achieves unprecedentedly high Faradaic efficiency of 53.8%±8.2%at 10 mA cm^(−2)and NH_(3) yield rate of 88.57±9.5 nmol s^(−1)cm^(−2)under ambient conditions,making a giant step further toward industrializing the electrochemical ammonia production.展开更多
Chloride-based solid electrolytes are considered promising candidates for next-generation high-energy-density all-solid-state batteries(ASSBs).However,their relatively low oxidative decomposition threshold(~4.2 V vs.L...Chloride-based solid electrolytes are considered promising candidates for next-generation high-energy-density all-solid-state batteries(ASSBs).However,their relatively low oxidative decomposition threshold(~4.2 V vs.Li^(+)/Li)constrains their use in ultrahighvoltage systems(e.g.,4.8 V).In this work,ferroelectric Ba TiO_(3)(BTO)nanoparticles with optimized thickness of~50-100 nm were successfully coated onto Li_(2.5)Y_(0.5)Zr_(0.5)Cl_(6)(LYZC@5BTO)electrolytes using a time-efficient ball-milling process.The nanoparticle-induced interfacial ionic conduction enhancement mechanism contributed to the preservation of LYZC’s high ionic conductivity,which remained at 1.06 m S cm^(-1)for LYZC@5BTO.Furthermore,this surface electric field engineering strategy effectively mitigates the voltage-induced self-decomposition of chloride-based solid electrolytes,suppresses parasitic interfacial reactions with single-crystal NCM811(SCNCM811),and inhibits the irreversible phase transition of SCNCM811.Consequently,the cycling stability of LYZC under high-voltage conditions(4.8 V vs.Li+/Li)is significantly improved.Specifically,ASSB cells employing LYZC@5BTO exhibited a superior discharge capacity of 95.4 m Ah g^(-1)over 200 cycles at 1 C,way outperforming cell using pristine LYZC that only shows a capacity of 55.4 m Ah g^(-1).Furthermore,time-of-flight secondary ion mass spectrometry and X-ray photoelectron spectroscopy analysis revealed that Metal-O-Cl by-products from cumulative interfacial side reactions accounted for 6% of the surface species initially,rising to 26% after 200 cycles in pristine LYZC.In contrast,LYZC@5BTO limited this increase to only 14%,confirming the effectiveness of BTO in stabilizing the interfacial chemistry.This electric field modulation strategy offers a promising route toward the commercialization of high-voltage solid-state electrolytes and energy-dense ASSBs.展开更多
Aqueous zinc-ion batteries(AZIBs)hold great promise for next-generation energy storage but face challenges such as Zn dendrite growth,side reactions,and limited performance at low temperatures.Here,we propose an elect...Aqueous zinc-ion batteries(AZIBs)hold great promise for next-generation energy storage but face challenges such as Zn dendrite growth,side reactions,and limited performance at low temperatures.Here,we propose an electrolyte design strategy that reconstructs the hydrogenbond network through the synergistic effect of glycerol(GL)and methylsulfonamide(MSA),enabling the formation of a(100)-oriented Zn anode.This design significantly broadens the operating current and temperature windows of AZIBs.As a result,Zn||Zn symmetric cells exhibit remarkable cycling stability,achieving 4,000 h at 1 mA cm^(-2)and 600 h at 40 mA cm^(-2)(both at 1 mAh cm^(-2)capacity);even at-20℃,Zn||Zn symmetric cells deliver ultra-stable cycling for over 5,400 h.Furthermore,Zn||VO_(2)full cells retain 77.3%of their capacity after 2,000 cycles at 30°C with a current density of 0.5 A g^(-1)and 85.4%capacity retention after 2,000 cycles at-20°C and 0.25 A g^(-1).These results demonstrate a robust pathway for enhancing the practicality and low-temperature adaptability of AZIBs.展开更多
The alcohol-based electrolyte exhibits excellent electropolishing properties for titanium alloys.However,its polishing effectiveness diminishes and the ability to polish is weakened or even lost after a certain durati...The alcohol-based electrolyte exhibits excellent electropolishing properties for titanium alloys.However,its polishing effectiveness diminishes and the ability to polish is weakened or even lost after a certain duration of electropolishing.Consequently,there is a low reuse rate for these electrolytes,significantly limiting their effi-ciency in electropolishing.In light of this issue,the current study conducted experiments using different elec-trochemical dissolution times on titanium alloy immersed in NaCl-ethylene glycol electrolytes to explore the main reasons for the failure of the electrolyte.Furthermore,a novel method was proposed to restore the elec-tropolishing ability of expired NaCl-ethylene glycol electrolyte.Subsequently,the titanium alloy was electro-polished with recycled alcohol-based electrolyte,and a favorable surface quality was obtained.By this method,the surface roughness Ra of the polished titanium alloy could be improved from Ra 0.498μm of the expired electrolyte to Ra 0.136μm of the recyclable electrolyte.展开更多
Halide solid-state electrolytes have gained significant attention in recent years due to their high ionic conductivity,making them promising candidates for future all-solid-state batteries.Recent studies have identifi...Halide solid-state electrolytes have gained significant attention in recent years due to their high ionic conductivity,making them promising candidates for future all-solid-state batteries.Recent studies have identified numerous crystal structures with the Li_(3)MX_(6)composition,although many remain unexplored across various chemical systems.In this research,we developed a comprehensive method to examine all conceivable space groups and structures within theLi-M-X system,where M includes In,Ga,and La,and X includes F,Cl,Br,and 1.Our findings revealed two metastable structures:Li_(3)InF_(6)with P3c1 symmetry and Li_(3)InI_(6)with C2/c symmetry,exhibiting ionic conductivities of 0.55 and 2.18mS/cm at 300K,respectively.Notably,the trigonal symmetry of Li3InF6 demonstrates that high ionic conductivities are not limited to monoclinic structures but can also be achieved with trigonal symmetries.The electrochemical stability windows,mechanical properties,and reaction energies of these materials with known cathodes suggest their potential for use in all-solid-state batteries.Additionally,we predicted the stability of novel materials,including Li_(5)InCl_(8),Li_(5)InBr_(8),Li_(5)InI_(8),LiIn_(2)Cl_(9),LiIn_(2)Br_(9),and LiIn_(2)I_(9).展开更多
Recent advancements in Zn-halogen batteries have focused on enhancing the adsorptive or catalytic capability of host materials and stabilizing complex intermediates with electrolyte additives,while the halogen-ion ele...Recent advancements in Zn-halogen batteries have focused on enhancing the adsorptive or catalytic capability of host materials and stabilizing complex intermediates with electrolyte additives,while the halogen-ion electrolyte modifications exhibit strong potential for integrated interfacial regulation.Herein,we design an electrically insulating rigid electrolyte container to immobilize a liquid halogen-ion electrolyte for separator-free Zn-halogen batteries with customizable electron transfer.Robust hydrogen bonding of hydroxyl groups in SiO_(2)with fluorinated moieties in PVDF-hfp regulates Zn^(2+)solvation and suppresses H_(2)O activity,while multi-channels formed by microcracks and interparticle gaps not only enhance mass transfer but also buffer interfacial electric field,jointly enabling a durable Zn plating/stripping.Effective confinement of intermediates also ensures the high reversibility across single-(I^(-)/I0),double-(I^(-)/I0/I^(-)),and triple-(I^(-)/I0/I^(-),Cl-/Cl0)electron transfer mechanisms at cathode,as evidenced by the double-electron transfer systems exhibiting a low capacity decay rate of 0.02‰over 4500 cycles at 10 mA cm^(-2)and a high areal capacity of 11.9 mAh cm^(-2)at 2 mA cm^(-2).This work presents a novel“container engineering”approach to halogen-ion electrolyte design and provides fundamental insights into the relationships between redox reversibility and reaction kinetics.展开更多
Composite polymer electrolytes(CPEs)offer a promising solution for all-solid-state lithium-metal batteries(ASSLMBs).However,conventional nanofillers with Lewis-acid-base surfaces make limited contribution to improving...Composite polymer electrolytes(CPEs)offer a promising solution for all-solid-state lithium-metal batteries(ASSLMBs).However,conventional nanofillers with Lewis-acid-base surfaces make limited contribution to improving the overall performance of CPEs due to their difficulty in achieving robust electrochemical and mechanical interfaces simultaneously.Here,by regulating the surface charge characteristics of halloysite nanotube(HNT),we propose a concept of lithium-ion dynamic interface(Li^(+)-DI)engineering in nano-charged CPE(NCCPE).Results show that the surface charge characteristics of HNTs fundamentally change the Li^(+)-DI,and thereof the mechanical and ion-conduction behaviors of the NCCPEs.Particularly,the HNTs with positively charged surface(HNTs+)lead to a higher Li^(+)transference number(0.86)than that of HNTs-(0.73),but a lower toughness(102.13 MJ m^(-3)for HNTs+and 159.69 MJ m^(-3)for HNTs-).Meanwhile,a strong interface compatibilization effect by Li^(+)is observed for especially the HNTs+-involved Li^(+)-DI,which improves the toughness by 2000%compared with the control.Moreover,HNTs+are more effective to weaken the Li^(+)-solvation strength and facilitate the formation of Li F-rich solid-electrolyte interphase of Li metal compared to HNTs-.The resultant Li|NCCPE|LiFePO4cell delivers a capacity of 144.9 m Ah g^(-1)after 400 cycles at 0.5 C and a capacity retention of 78.6%.This study provides deep insights into understanding the roles of surface charges of nanofillers in regulating the mechanical and electrochemical interfaces in ASSLMBs.展开更多
Solid polymer electrolytes(SPEs)are considered promising candidates for all-solid-state lithium metal batteries because of their easy preparation and good compatibility with lithium metal.However,their applications ar...Solid polymer electrolytes(SPEs)are considered promising candidates for all-solid-state lithium metal batteries because of their easy preparation and good compatibility with lithium metal.However,their applications are restricted by their low ionic conductivity and poor mechanical properties.In this study,a composite solid polymer electrolyte composed of poly(ethylene oxide)(PEO),poly(vinylidene fluoride-co-hexafluoropropylene)(PVDF-HFP),plasticizer succinonitrile(SN),and polytetrafluoroethylene(PTFE)fibrous porous membranes was prepared.The PTFE fibrous membrane significantly enhanced the mechanical strength of the electrolyte as a supporting framework.SN reduced the crystalline regions of PEO and facilitated rapid lithium-ion transport.PVDF-HFP promoted lithium salt dissolution and improved the electrochemical stability of the electrolyte.Accordingly,the optimized PTFE/PEO/PVDF-HFP/SN polymer electrolyte exhibited a tensile strength of 3.31 MPa at 352%elongation and demonstrated an ionic conductivity of 7.6×10^(-4)S·cm^(-1)at 60℃.Lithium symmetric cells maintained stable cycling for over 2500 h at 0.15 m A·cm^(-2),and Li//Li Fe PO_(4) full cells showed a high capacity retention of 91.6%after 300 cycles at 0.5 C,with coulombic efficiency consistently exceeding 99.9%throughout cycling.展开更多
The pursuit of high energy density and sustainable energy storage devices has been the target of many researchers.However,safety issues such as the susceptibility of conventional liquid electrolytes to leakage and fla...The pursuit of high energy density and sustainable energy storage devices has been the target of many researchers.However,safety issues such as the susceptibility of conventional liquid electrolytes to leakage and flammability,as well as performance degradation due to uncontrollable dendrite growth in liquid electrolytes,have been limiting the further development of energy storage devices.In this regard,gel polymer electrolytes(GPEs)based on lignocellulosic(cellulose,hemicellulose,lignin)have attracted great interest due to their high thermal stability,excellent electrolyte wettability,and natural abundance.Therefore,in this critical review,a comprehensive overview of the current challenges faced by GPEs is presented,followed by a detailed description of the opportunities and advantages of lignocellulosic materials for the fabrication of GPEs for energy storage devices.Notably,the key properties and corresponding construction strategies of GPEs for energy storage are analyzed and discussed from the perspective of lignocellulose for the first time.Moreover,the future challenges and prospects of lignocellulose-mediated GPEs in energy storage applications are also critically reviewed and discussed.We sincerely hope this review will stimulate further research on lignocellulose-mediated GPEs in energy storage and provide meaningful directions for the strategy of designing advanced GPEs.展开更多
基金supported by the Priority Academic Program Development of Jiangsu Higher Education Institutions and the Key Laboratory of Advanced Welding Technology of Jiangsu Province, China (No. JSAWT-11)
文摘Micro-arc oxidation （MAO） process was cartied out in an optimized dual electrolyte system to fabricate a compact, smooth, and corrosion resistant coating on ZK60 Mg alloy. The microstructural characteristics of coating were investigated by scanning electron microscopy （SEM） coupled with an energy dispersive spectrometer （EDS） and X-ray diffraction （XRD）. Test of mass loss was conducted at a 3.5 % NaCl solution to assess the resistance to corrosion. The bonding strength between the coating and ZK60 substrate was evaluated using scratch experiment. The results reveal that MgA1204 and MgO are the main phases of ceramic coating obtained in the dual electrolyte system. The corrosion rate of coating prepared in the optimized dual electrolyte is only 0.0061 g.m-2.h-1, which demonstrates excellent corrosion resistance. This is mainly due to the compact, uniform coating with high bonding strength.
文摘A new equation of state(PHSMSA EOS)based on perturbation theory is developed for calculating high-pressure phase equilibria of aqueous electrolyte systems containing supercritical gases,light hydrocarbons andpolar components.The binary interaction parameters are determined:for ion-ion pairs by regression of ionicactivity coefficient data;for molecule-molecule pairs by fitting the VLE data of binary nonelectrolyte mixtures;and for ion-molecule pairs by fitting the gas solubility data of ternary gas-water-salt systems.The new EOShas been tested on the prediction of solubilities of methane,nitrogen and natural gas mixtures in brine.Sat-isfactory agreement with the experimental data measured by authors and other investigators is observed.
基金support from the Early Career Faculty grant (80NSSC18K1514) from NASA’s Space Technology Research Grants Programsupport from the startup funds at Thayer School of Engineering,Dartmouth College。
文摘Enabling highly reversible sodium(Na) metal anodes in a polymer electrolyte(PE) system is critical for realizing next-generation batteries with lower cost,higher energy,and improved safety.However,the uneven Na deposition and high Na/PE interphase resistance lead to poor reversibility and short cycle life of Na metal anodes.To tackle these problems,here a variety of metal nanoparticles(M-np,M=Al,Sn,In or Au) are deposited onto copper(Cu) foils to synthesize binder-free M-np@Cu substrates for Na plating/stripping.Notably,the Au-np@Cu substrate provides abundant preferential nucleation/growth sites,decreasing Na nucleation barrier and thus promoting uniform Na deposition.Accordingly,stable Na metal anodes are achieved with high reversible capacities,long cycle life,and high usage of Na.With the Au-np@Cu/Na anode and PE,the full cell using a commercial bulk sulfur cathode exhibits a reversible capacity of>400 mAh g^(-1) with near-100% Coulombic efficiency over 200 cycles.
基金Project supported by the National Key Research and Development Program of China(2019YFC1908403)。
文摘The application of Pr-Nd-Dy alloy in the field of high-performance Nd-Fe-B permanent magnet materials has great potential.The composition of the PrF_(3)-NdF_(3)-DyF_(3)-LiF(PND-LiF) electrolyte system used in the production of Pr-Nd-Dy alloys,the distribution of F,Li,RE and other elements in the electrolyte and their occurrence state were studied in this paper.The effect of temperature and lithium fluoride addition on electrolyte conductivity was revealed using the continuous conductivity cell constant(CVCC) method.The thermal analysis method was used to study the influence of lithium fluoride addition on the electrolyte’s liquidus temperature and the optimal process conditions for the production of Pr-Nd-Dy alloy were determined.The results show that the overall distribution of praseodymium neodymium fluoride and lithium fluoride is uniform in the electrolyte and dysprosium fluoride is distributed between praseodymium-neodymium fluoride and lithium fluoride.Praseodymium-neodymium oxide is embedded in praseodymium neodymium fluoride in spotty pattern.The electrolyte’s conductivity is increased as the temperature and lithium fluoride addition are going up,while the liquidus temperature is going down with increasing lithium fluoride addition.The best electrolysis process conditions for the PND-LiF system to produce praseodymium neodymium dysprosium alloy are as follows:temperature1050℃ and 15.56 wt% PrF_(3)-62.22 wt% NdF_(3)-11.11 wt% DyF_(3)-11.11 wt% LiF.
文摘Electrode material is one of the most important factors affecting the performance of supercapacitors, and electrolyte solution is another. In this work, electrochemical properties of hydroxide zinc carbonate composite electrode (HZC) in KOH + K3[Fe(CN)6] electrolyte were studied. It was proved that [Fe(CN)6]3−in electrolyte participated in electrochemical reactions and promoted electron transfer. The specific capacitance of HZC electrode was as high as 920.5 F·g−1 at 1.0 A·g−1 in 1 mol·L−1 KOH and 0.04 mol·L−1 K3[Fe(CN)6] electrolyte, which is 172.9% higher than that in KOH. The combination of HZC electrode and low alkalinity aqueous electrolyte provided the supercapacitor system with good capacitance performance, safety, and environmentally friendly.
基金BK21 FOUR Program by Jeonbuk National University Research Grantsupported by “Regional Innovation Strategy (RIS)” through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (MOE)(2023RIS-008)H2KOREA funded by the Ministry of Education(2024 Hydrogen Industry-002, Innovative Human Resources Development Project for Hydrogen Industry)。
文摘Proton exchange membrane fuel cells (PEMFCs) provide an appealing sustainable energy system,with the solid-electrolyte membrane playing a crucial role in its overall performance.Currently,sulfonated poly(1,4-phenylene ether-ether sulfone)(SPEES),an aromatic hydrocarbon polymer,has garnered considerable attention as an alternative to Nafion polymers.However,the long-term durability and stability of SPEES present a significant challenge.In this context,we introduce a potential solution in the form of an additive,specifically a core–shell-based amine-functionalized iron titanate (A–Fe_(2)TiO_(5)),which holds promise for improving the lifetime,proton conductivity,and power density of SPEES in PEMFCs.The modified SPEES/A–Fe_(2)TiO_(5)composite membranes exhibited notable characteristics,including high water uptake,enhanced thermomechanical stability,and oxidative stability.Notably,the SPEES membrane loaded with 1.2 wt%of A–Fe_(2)TiO_(5)demonstrates a maximum proton conductivity of 155 mS ccm^(-1),a twofold increase compared to the SPEES membrane,at 80°C under 100%relative humidity (RH).Furthermore,the 1.2 wt%of A–Fe_(2)TiO_(5)/SPEES composite membranes exhibited a maximum power density of 397.37 mW cm^(-2)and a current density of 1148 mA cm^(-2)at 60°C under 100%RH,with an opencircuit voltage decay of 0.05 m V/h during 103 h of continuous operation.This study offers significant insights into the development and understanding of innovative SPEES nanocomposite membranes for PEMFC applications.
基金supported by funding from the National Natural Science Foundation of China(No.22508347)the Natural Science Foundation of Zhejiang Province(No.LD25E020002)the Science and Technology Plan Projects of Zhejiang University Quzhou Research Institute(No.IZQ2024RCZX002).
文摘Solid-state batteries(SSBs)are widely regarded as promising candidates for next-generation energy storage systems due to their inherent safety and high energy density,making them ideally suited for transportation applications such as electric vehicles.While extensive efforts have been devoted to developing solid-state electrolytes(SSEs)with high ionic conductivity and broad electrochemical stability windows,the cycling life and power density of SSBs still fall short of commercial requirements.These limitations are primarily attributed to electrochemical and mechanical failures at the interfaces during battery operation.The overall performance of SSBs is not solely determined by the properties of the SSEs themselves,such as conductivity and stability,but is critically influenced by the interfacial compatibility between the SSEs and the electrodes(both cathode and anode),as well as the interparticle interfaces within the electrolyte.Therefore,advancing interfacial engineering and enhancing ion transport across these interfaces are essential for the continued development and practical deployment of SSBs technologies.
基金the financial support from the Key Project of Shaanxi Provincial Natural Science Foundation-Key Project of Laboratory(2025SYS-SYSZD-117)the Natural Science Basic Research Program of Shaanxi(2025JCYBQN-125)+8 种基金Young Talent Fund of Xi'an Association for Science and Technology(0959202513002)the Key Industrial Chain Technology Research Program of Xi'an(24ZDCYJSGG0048)the Key Research and Development Program of Xianyang(L2023-ZDYF-SF-077)Postdoctoral Fellowship Program of CPSF(GZC20241442)Shaanxi Postdoctoral Science Foundation(2024BSHSDZZ070)Research Funds for the Interdisciplinary Projects,CHU(300104240913)the Fundamental Research Funds for the Central Universities,CHU(300102385739,300102384201,300102384103)the Scientific Innovation Practice Project of Postgraduate of Chang'an University(300103725063)the financial support from the Australian Research Council。
文摘Lithium-ion batteries(LIBs),while dominant in energy storage due to high energy density and cycling stability,suffer from severe capacity decay,rate capability degradation,and lithium dendrite formation under low-temperature(LT)operation.Therefore,a more comprehensive and systematic understanding of LIB behavior at LT is urgently required.This review article comprehensively reviews recent advancements in electrolyte engineering strategies aimed at improving the low-temperature operational capabilities of LIBs.The study methodically examines critical performance-limiting mechanisms through fundamental analysis of four primary challenges:insufficient ionic conductivity under cryogenic conditions,kinetically hindered charge transfer processes,Li+transport limitations across the solidelectrolyte interphase(SEI),and uncontrolled lithium dendrite growth.The work elaborates on innovative optimization approaches encompassing lithium salt molecular design with tailored dissociation characteristics,solvent matrix optimization through dielectric constant and viscosity regulation,interfacial engineering additives for constructing low-impedance SEI layers,and gel-polymer composite electrolyte systems.Notably,particular emphasis is placed on emerging machine learning-guided electrolyte formulation strategies that enable high-throughput virtual screening of constituent combinations and prediction of structure-property relationships.These artificial intelligence-assisted rational design frameworks demonstrate significant potential for accelerating the development of next-generation LT electrolytes by establishing quantitative composition-performance correlations through advanced data-driven methodologies.
基金supported by the National Natural Science Foundation of China(52002297)National Key R&D Program of China(2022VFB2404800)+1 种基金Wuhan Yellow Crane Talents Program,China Postdoctoral Science Foundation(No.2024M752495)the Postdoctoral Fellowship Program of CPSF(No.GZB20230552).
文摘Aqueous alkali metal-ion batteries(AAMIBs)have been recognized as emerging electrochemical energy storage technologies for grid-scale applications owning to their intrinsic safety,cost-effectiveness,and environmental sustainability.However,the practical application of AAMIBs is still severely constrained by the tendency of aqueous electrolytes to freeze at low temperatures and decompose at high temperatures,limiting their operational temperature range.Considering the urgent need for energy systems with higher adaptability and resilience at various application scenarios,designing novel electrolytes via structure modulation has increasingly emerged as a feasible and economical strategy for the performance optimization of wide-temperature AAMIBs.In this review,the latest advancement of wide-temperature electrolytes for AAMIBs is systematically and comprehensively summarized.Specifically,the key challenges,failure mechanisms,correlations between hydrogen bond behaviors and physicochemical properties,and thermodynamic and kinetic interpretations in aqueous electrolytes are discussed firstly.Additionally,we offer forward-looking insights and innovative design principles for developing aqueous electrolytes capable of operating across a broad temperature range.This review is expected to provide some guidance and reference for the rational design and regulation of widetemperature electrolytes for AAMIBs and promote their future development.
基金supported by the Natural Science Foundation of China(Nos.52125202,52202100,and U24A2065)the Natural Science Foundation of Jiangsu Province(BK20243016)Fundamental Research Funds for the Central Universities,China Postdoctoral Science Foundation(No.2024T171166).
文摘Aqueous zinc-ion batteries(AZIBs)have garnered considerable attention as promising post-lithium energy storage technologies owing to their intrinsic safety,cost-effectiveness,and competitive gravimetric energy density.However,their practical commercialization is hindered by critical challenges on the anode side,including dendrite growth and parasitic reactions at the anode/electrolyte interface.Recent studies highlight that rational electrolyte structure engineering offers an effective route to mitigate these issues and strengthen the electrochemical performance of the zinc metal anode.In this review,we systematically summarize state-of-the-art strategies for electrolyte optimization,with a particular focus on the zinc salts regulation,electrolyte additives,and the construction of novel electrolytes,while elucidating the underlying design principles.We further discuss the key structure–property relationships governing electrolyte behavior to provide guidance for the development of next-generation electrolytes.Finally,future perspectives on advanced electrolyte design are proposed.This review aims to serve as a comprehensive reference for researchers exploring high-performance electrolyte engineering in AZIBs.
基金supported by the National Natural Science Foundation of China (Grant No. U21A20332)support from the Collaborative Innovation Center of Suzhou Nano Science and Technology
文摘Lithium-mediated nitrogen reduction reaction(LMNRR)is a promising route for sustainable ammonia synthesis,but the generation of excessive solid electrolyte interphase(SEI)severely limits its efficiency.Here,we tackle this challenge by introducing n-hexane as an electrolyte additive to weaken LiClO4 ionization,achieving minimized dissociation via squeezed solvation shells with compact ion pairs.Molecular dynamics simulations and experimental characterizations reveal that n-hexane enriches anion coordination around Li+,endowing the electrolyte with robust anti-reduction capability.This suppresses SEI overgrowth,reduces interfacial resistance,and accelerates N2 diffusion.Consequently,a thinner,inorganic-rich SEI is formed,enabling high nitrogen flux and rapid active Li3N generation kinetics.Consequently,the proof-of-concept system achieves unprecedentedly high Faradaic efficiency of 53.8%±8.2%at 10 mA cm^(−2)and NH_(3) yield rate of 88.57±9.5 nmol s^(−1)cm^(−2)under ambient conditions,making a giant step further toward industrializing the electrochemical ammonia production.
基金financially supported by Shenzhen Science and Technology Program(JCYJ20240813142900001)Guangdong Provincial Key Laboratory of New Energy Materials Service Safety。
文摘Chloride-based solid electrolytes are considered promising candidates for next-generation high-energy-density all-solid-state batteries(ASSBs).However,their relatively low oxidative decomposition threshold(~4.2 V vs.Li^(+)/Li)constrains their use in ultrahighvoltage systems(e.g.,4.8 V).In this work,ferroelectric Ba TiO_(3)(BTO)nanoparticles with optimized thickness of~50-100 nm were successfully coated onto Li_(2.5)Y_(0.5)Zr_(0.5)Cl_(6)(LYZC@5BTO)electrolytes using a time-efficient ball-milling process.The nanoparticle-induced interfacial ionic conduction enhancement mechanism contributed to the preservation of LYZC’s high ionic conductivity,which remained at 1.06 m S cm^(-1)for LYZC@5BTO.Furthermore,this surface electric field engineering strategy effectively mitigates the voltage-induced self-decomposition of chloride-based solid electrolytes,suppresses parasitic interfacial reactions with single-crystal NCM811(SCNCM811),and inhibits the irreversible phase transition of SCNCM811.Consequently,the cycling stability of LYZC under high-voltage conditions(4.8 V vs.Li+/Li)is significantly improved.Specifically,ASSB cells employing LYZC@5BTO exhibited a superior discharge capacity of 95.4 m Ah g^(-1)over 200 cycles at 1 C,way outperforming cell using pristine LYZC that only shows a capacity of 55.4 m Ah g^(-1).Furthermore,time-of-flight secondary ion mass spectrometry and X-ray photoelectron spectroscopy analysis revealed that Metal-O-Cl by-products from cumulative interfacial side reactions accounted for 6% of the surface species initially,rising to 26% after 200 cycles in pristine LYZC.In contrast,LYZC@5BTO limited this increase to only 14%,confirming the effectiveness of BTO in stabilizing the interfacial chemistry.This electric field modulation strategy offers a promising route toward the commercialization of high-voltage solid-state electrolytes and energy-dense ASSBs.
基金financially supported by Guangdong Major Project of Basic Research(No.2023B0303000002)Shenzhen Fundamental Research Programs(No.JCYJ20241202125404007)+1 种基金Shenzhen Key Laboratory of Advanced Energy Storage(No.ZDSYS20220401141000001)National Natural Science Foundation of China(No.52263016,22265007)。
文摘Aqueous zinc-ion batteries(AZIBs)hold great promise for next-generation energy storage but face challenges such as Zn dendrite growth,side reactions,and limited performance at low temperatures.Here,we propose an electrolyte design strategy that reconstructs the hydrogenbond network through the synergistic effect of glycerol(GL)and methylsulfonamide(MSA),enabling the formation of a(100)-oriented Zn anode.This design significantly broadens the operating current and temperature windows of AZIBs.As a result,Zn||Zn symmetric cells exhibit remarkable cycling stability,achieving 4,000 h at 1 mA cm^(-2)and 600 h at 40 mA cm^(-2)(both at 1 mAh cm^(-2)capacity);even at-20℃,Zn||Zn symmetric cells deliver ultra-stable cycling for over 5,400 h.Furthermore,Zn||VO_(2)full cells retain 77.3%of their capacity after 2,000 cycles at 30°C with a current density of 0.5 A g^(-1)and 85.4%capacity retention after 2,000 cycles at-20°C and 0.25 A g^(-1).These results demonstrate a robust pathway for enhancing the practicality and low-temperature adaptability of AZIBs.
基金supported by the National Natural Science Foundation of China(No.52175414)Natural Science Foundation of Jiangsu Province of China(No.BK20220134)Fundamental Research Funds for the Central Universities(No.NE2023002).
文摘The alcohol-based electrolyte exhibits excellent electropolishing properties for titanium alloys.However,its polishing effectiveness diminishes and the ability to polish is weakened or even lost after a certain duration of electropolishing.Consequently,there is a low reuse rate for these electrolytes,significantly limiting their effi-ciency in electropolishing.In light of this issue,the current study conducted experiments using different elec-trochemical dissolution times on titanium alloy immersed in NaCl-ethylene glycol electrolytes to explore the main reasons for the failure of the electrolyte.Furthermore,a novel method was proposed to restore the elec-tropolishing ability of expired NaCl-ethylene glycol electrolyte.Subsequently,the titanium alloy was electro-polished with recycled alcohol-based electrolyte,and a favorable surface quality was obtained.By this method,the surface roughness Ra of the polished titanium alloy could be improved from Ra 0.498μm of the expired electrolyte to Ra 0.136μm of the recyclable electrolyte.
基金supported by the Higher Education and Science Committee of Armenia in the frames of the research projects 20TTSG-2F010, 23AA-2F033 and ANSEF (EN-matsc-2660) grant.
文摘Halide solid-state electrolytes have gained significant attention in recent years due to their high ionic conductivity,making them promising candidates for future all-solid-state batteries.Recent studies have identified numerous crystal structures with the Li_(3)MX_(6)composition,although many remain unexplored across various chemical systems.In this research,we developed a comprehensive method to examine all conceivable space groups and structures within theLi-M-X system,where M includes In,Ga,and La,and X includes F,Cl,Br,and 1.Our findings revealed two metastable structures:Li_(3)InF_(6)with P3c1 symmetry and Li_(3)InI_(6)with C2/c symmetry,exhibiting ionic conductivities of 0.55 and 2.18mS/cm at 300K,respectively.Notably,the trigonal symmetry of Li3InF6 demonstrates that high ionic conductivities are not limited to monoclinic structures but can also be achieved with trigonal symmetries.The electrochemical stability windows,mechanical properties,and reaction energies of these materials with known cathodes suggest their potential for use in all-solid-state batteries.Additionally,we predicted the stability of novel materials,including Li_(5)InCl_(8),Li_(5)InBr_(8),Li_(5)InI_(8),LiIn_(2)Cl_(9),LiIn_(2)Br_(9),and LiIn_(2)I_(9).
基金supported by the Science Fund for Distinguished Young Scholars of Hunan Province(2023JJ10060)the National Natural Science Foundation of China(22575269)Young Elite Scientists Sponsorship Program by CAST(2023QNRC001)。
文摘Recent advancements in Zn-halogen batteries have focused on enhancing the adsorptive or catalytic capability of host materials and stabilizing complex intermediates with electrolyte additives,while the halogen-ion electrolyte modifications exhibit strong potential for integrated interfacial regulation.Herein,we design an electrically insulating rigid electrolyte container to immobilize a liquid halogen-ion electrolyte for separator-free Zn-halogen batteries with customizable electron transfer.Robust hydrogen bonding of hydroxyl groups in SiO_(2)with fluorinated moieties in PVDF-hfp regulates Zn^(2+)solvation and suppresses H_(2)O activity,while multi-channels formed by microcracks and interparticle gaps not only enhance mass transfer but also buffer interfacial electric field,jointly enabling a durable Zn plating/stripping.Effective confinement of intermediates also ensures the high reversibility across single-(I^(-)/I0),double-(I^(-)/I0/I^(-)),and triple-(I^(-)/I0/I^(-),Cl-/Cl0)electron transfer mechanisms at cathode,as evidenced by the double-electron transfer systems exhibiting a low capacity decay rate of 0.02‰over 4500 cycles at 10 mA cm^(-2)and a high areal capacity of 11.9 mAh cm^(-2)at 2 mA cm^(-2).This work presents a novel“container engineering”approach to halogen-ion electrolyte design and provides fundamental insights into the relationships between redox reversibility and reaction kinetics.
基金the financial support from the National Natural Science Foundation of China(52203123 and 52473248)State Key Laboratory of Polymer Materials Engineering(sklpme2024-2-04)+1 种基金the Fundamental Research Funds for the Central Universitiessponsored by the Double First-Class Construction Funds of Sichuan University。
文摘Composite polymer electrolytes(CPEs)offer a promising solution for all-solid-state lithium-metal batteries(ASSLMBs).However,conventional nanofillers with Lewis-acid-base surfaces make limited contribution to improving the overall performance of CPEs due to their difficulty in achieving robust electrochemical and mechanical interfaces simultaneously.Here,by regulating the surface charge characteristics of halloysite nanotube(HNT),we propose a concept of lithium-ion dynamic interface(Li^(+)-DI)engineering in nano-charged CPE(NCCPE).Results show that the surface charge characteristics of HNTs fundamentally change the Li^(+)-DI,and thereof the mechanical and ion-conduction behaviors of the NCCPEs.Particularly,the HNTs with positively charged surface(HNTs+)lead to a higher Li^(+)transference number(0.86)than that of HNTs-(0.73),but a lower toughness(102.13 MJ m^(-3)for HNTs+and 159.69 MJ m^(-3)for HNTs-).Meanwhile,a strong interface compatibilization effect by Li^(+)is observed for especially the HNTs+-involved Li^(+)-DI,which improves the toughness by 2000%compared with the control.Moreover,HNTs+are more effective to weaken the Li^(+)-solvation strength and facilitate the formation of Li F-rich solid-electrolyte interphase of Li metal compared to HNTs-.The resultant Li|NCCPE|LiFePO4cell delivers a capacity of 144.9 m Ah g^(-1)after 400 cycles at 0.5 C and a capacity retention of 78.6%.This study provides deep insights into understanding the roles of surface charges of nanofillers in regulating the mechanical and electrochemical interfaces in ASSLMBs.
基金financially supported by the National Key Research and Development Program of China(No.2021YFB3801500)Fundamental Research Funds of Zhejiang Sci-Tech University(No.24202105-Y)。
文摘Solid polymer electrolytes(SPEs)are considered promising candidates for all-solid-state lithium metal batteries because of their easy preparation and good compatibility with lithium metal.However,their applications are restricted by their low ionic conductivity and poor mechanical properties.In this study,a composite solid polymer electrolyte composed of poly(ethylene oxide)(PEO),poly(vinylidene fluoride-co-hexafluoropropylene)(PVDF-HFP),plasticizer succinonitrile(SN),and polytetrafluoroethylene(PTFE)fibrous porous membranes was prepared.The PTFE fibrous membrane significantly enhanced the mechanical strength of the electrolyte as a supporting framework.SN reduced the crystalline regions of PEO and facilitated rapid lithium-ion transport.PVDF-HFP promoted lithium salt dissolution and improved the electrochemical stability of the electrolyte.Accordingly,the optimized PTFE/PEO/PVDF-HFP/SN polymer electrolyte exhibited a tensile strength of 3.31 MPa at 352%elongation and demonstrated an ionic conductivity of 7.6×10^(-4)S·cm^(-1)at 60℃.Lithium symmetric cells maintained stable cycling for over 2500 h at 0.15 m A·cm^(-2),and Li//Li Fe PO_(4) full cells showed a high capacity retention of 91.6%after 300 cycles at 0.5 C,with coulombic efficiency consistently exceeding 99.9%throughout cycling.
基金supported by the National Natural Science Foundation of China(32501592,32271814,32301530,32471806)Young Elite Scientist Sponsorship Program by Cast(No.YESS20230242)+3 种基金Natural Science Foundation of Tianjin(23JCZDJC00630,24JCZDJC00630)the China Postdoctoral Science Foundation(2023M740563)Tianjin Enterprise Technology Commissioner Project(25YDTPJC00690)China Scholarship Council(202408120091,202408120105).
文摘The pursuit of high energy density and sustainable energy storage devices has been the target of many researchers.However,safety issues such as the susceptibility of conventional liquid electrolytes to leakage and flammability,as well as performance degradation due to uncontrollable dendrite growth in liquid electrolytes,have been limiting the further development of energy storage devices.In this regard,gel polymer electrolytes(GPEs)based on lignocellulosic(cellulose,hemicellulose,lignin)have attracted great interest due to their high thermal stability,excellent electrolyte wettability,and natural abundance.Therefore,in this critical review,a comprehensive overview of the current challenges faced by GPEs is presented,followed by a detailed description of the opportunities and advantages of lignocellulosic materials for the fabrication of GPEs for energy storage devices.Notably,the key properties and corresponding construction strategies of GPEs for energy storage are analyzed and discussed from the perspective of lignocellulose for the first time.Moreover,the future challenges and prospects of lignocellulose-mediated GPEs in energy storage applications are also critically reviewed and discussed.We sincerely hope this review will stimulate further research on lignocellulose-mediated GPEs in energy storage and provide meaningful directions for the strategy of designing advanced GPEs.
