The practical deployment of lithium metal batteries remains severely constrained,especially under elevated temperatures.Although metal-organic frameworks(MOFs)improve the thermal stability of liquid electrolytes by ca...The practical deployment of lithium metal batteries remains severely constrained,especially under elevated temperatures.Although metal-organic frameworks(MOFs)improve the thermal stability of liquid electrolytes by capturing them in well-ordered sub-nanopores,interparticle voids between MOF particles readily absorb liquid electrolyte,obscuring our understanding of the intrinsic role of nanopores in directing Li^(+)transport.To address this challenge,we introduce a one-dimensional(1D)MOF model architecture that eliminates interparticle effects and enables direct observation of Li^(+)solvation and de-solvation dynamics.Comparative studies of 1D HKUST-1 and ZIF-8 uncover distinct transport behaviors,supported by both experimental measurements and neural network potential-based molecular dynamics simulations.Building on these insights,we construct a hierarchical core-shell MOF architecture by integrating ZIF-8(core)and HKUST-1(shell)onto a hybrid fiber scaffold.This design harnesses the complementary strengths of both MOFs to achieve continuous ion pathways,directional Li^(+)conduction,and improved thermal and electrochemical resilience.展开更多
To improve the solid–solid interface performance of all solid-state lithium batteries(ASSLBs),a novel sandwich-structured solid electrolyte(SSE,total thickness of 0.7 mm)was investigated.It comprises a central layer ...To improve the solid–solid interface performance of all solid-state lithium batteries(ASSLBs),a novel sandwich-structured solid electrolyte(SSE,total thickness of 0.7 mm)was investigated.It comprises a central layer of perovskite-type Li_(0.37)Sr_(0.44)Zr_(0.25)Ta_(0.75)O_(3)(LSZT)electrolyte(thickness of 0.5 mm)sandwiched between two layers of composite solid polymer electrolyte(CSPE,each with a thickness of 0.1 mm).The thin CSPE interlayer not only effectively reduces interfacial resistance between LSZT and electrodes,but also suppresses Li-induced reduction degradation of LSZT while ensuring uniform current density distribution across the interface.The SSE demonstrates an ionic conductivity of 8.76×10^(−5)S·cm^(−1)at 30℃,increasing to 1.13×10^(−3)S·cm^(−1)at 100℃,with an activation energy of 0.36 eV.In addition,SSE is stable for Li metal and achieves electrochemical stability up to 4.58 V vs.Li^(+)/Li.SSE shows outstanding electrode/electrolyte interfacial compatibility and significant suppression of the growth of Li dendrite.Ascribing to these merits,Li|SSE|Li symmetric cell maintained stable operation for 500 h at a current density of 0.3 mA·cm^(−2)without short circuit,confirming robust interfacial compatibility between SSE and Li electrode.The all-solid-state LiFePO_(4)|Li battery with SSE has an initial reversible discharge capacity of 109.8 mAh·g^(−1)and a reversible capacity of 118.1 mAh·g^(−1)after 50 cycles at a charge/discharge rate of 0.1C(30℃),demonstrating good cycling performance.展开更多
The random distribution of one-dimensional nanofillers in composite polymer electrolytes(CPEs) typically results in tortuous ion transport pathways,severely limiting ionic conductivity and Li^(+) flux uniformity.Herei...The random distribution of one-dimensional nanofillers in composite polymer electrolytes(CPEs) typically results in tortuous ion transport pathways,severely limiting ionic conductivity and Li^(+) flux uniformity.Herein,an innovative electric field-assisted strategy is proposed to construct vertically aligned ion channels in CPEs using lithiated halloysite nano tubes(HNTs-SO_(3)Li)embedded within a polyurethane acrylate/polyethylene glycol diacrylate(PUA/PEGDA) matrix.Under an alternating electric field,the nanotubes orient perpendicularly,forming continuous,low-tortuosity pathways that significantly enhance roomtemperature ionic conductivity.The aligned structure not only shortens Li+transport distances but also homogenizes ion flux at the electrode interface,effectively suppressing lithium dendrite growth.Electrochemical characterization reveals exceptional stability.Three-dimensional structural reconstruction and ion transport simulations further demonstrate that the ordered channels promote uniform Li+distribution and faster ion kinetics compared to disordered systems.This study provides a scalable and efficient approach to designing high-performance CPEs for next-generation solid-state batteries,addressing critical challenges in ionic conductivity,interfacial stability,and dendrite suppression.展开更多
Lithium-oxygen(Li-O_(2))battery is favored among“beyond lithiumion”technologies for sustainability because of its exceptional energy density.Major impediments are the poor cycle stability and grievous capacity degra...Lithium-oxygen(Li-O_(2))battery is favored among“beyond lithiumion”technologies for sustainability because of its exceptional energy density.Major impediments are the poor cycle stability and grievous capacity degradation at high current densities.We address these issues by a“killing two birds with one stone”O_(2)-pressure protocol.It first resolves efficient O_(2) mass transport at high rates..The accelerated reaction kinetics optimizes the composition and growth pathway of discharge products.This protocol secondly achieves protection of Li anodes via densifying corrosion layers on them.Consequently,the battery delivers both ultrahigh discharge capacity(>9,000 mAh g^(-1))at 3,000 mA g^(-1) and excellent cycling stability.Under a dual-strategy effect of high-pressure O_(2) and artificial protection layers,the battery actualizes over 11-fold increase in cycle life of 5,170 h(2,585 cycles).The strategy opens avenues for advancing Li-O_(2) batteries towards practical application and confers the extension to other gas-based batteries.展开更多
Anode-free lithium-metal batteries(AFLMBs)offer high energy density.However,lithium dendrite growth and interfacial instability remain critical obstacles to their commercialization.Here,lithiophilic nanosized(∼5 nm)L...Anode-free lithium-metal batteries(AFLMBs)offer high energy density.However,lithium dendrite growth and interfacial instability remain critical obstacles to their commercialization.Here,lithiophilic nanosized(∼5 nm)LixSn combined with an inorganic-rich@polymer dual-layer structure was constructed on a Cu current collector,prepared via a galvanostatic process using a dual-lithium salt electrolyte in a Cu||Cu configuration.The polymer outer layer,initiated by LixSn,reinforces the solid electrolyte interphase(SEI),providing mechanical robustness and enabling stable cycling in an ether-based electrolyte.Furthermore,the Sn and LixSn particle sizes can be effectively tuned by adjusting the galvanostatic discharge current.The nanosized LixSn significantly lowers the nucleation overpotential and creates abundant lithiophilic nucleation sites,resulting in uniform,dense Li plating/stripping.The modified Cu collector demonstrates superior performance in ether-based electrolytes,achieving over 92%capacity retention after 100 cycles at a current density of 1.5 mA cm^(−2)and an area capacity of 1.1 mAh cm^(−2).This work provides a simple,eco-friendly,and scalable approach for fabricating high-performance anode-free current collectors for AFLMBs.展开更多
High-voltage Li metal batteries hold great promise for next-generation energy storage,but constructing robust and highly conductive electrode/electrolyte interfaces via electrolyte engineering to enhance the battery p...High-voltage Li metal batteries hold great promise for next-generation energy storage,but constructing robust and highly conductive electrode/electrolyte interfaces via electrolyte engineering to enhance the battery performance is still a challenge.Herein,we propose a non-coordinating solvent anchoring strategy to regulate fluorinated amide electrolyte to enhance the stability and ionic conductivity of the interfaces.Specifically,hexafluorobenzene is employed to anchor fluorinated amide solvent by the robust dipole–dipole interactions,which weaken the coordination between fluorinated amide and Li^(+),facilitate more anions coordinating with Li^(+),and form more ion aggregates.Consequently,stable and highly conductive electrode/electrolyte interfaces enriched with LiF and Li_(3)N are constructed,drastically improving the interfacial stability and reducing interface impedance of Li metal anodes and LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)(NCM811)cathodes.Such a rationally designed electrolyte demonstrates excellent flame retardancy,high oxidation stability(5.1 V vs.Li^(+)/Li),and enhanced low-temperature ionic conductivity.As a result,this electrolyte substantially enhances the high-voltage cycle stability(-4.8 V),rate capability(-50 C)and low-temperature cycle performance(-20℃)of Li||NCM811 cells,which retain 80.0%of the initial capacity over 600 cycles at 4.7 V.This research offers a promising strategy to design ideal electrolytes for highperformance Li metal batteries.展开更多
Polymer-electrolyte-based solid-state Li metal batteries with high-voltage Ni-rich cathodes are promising energy storage technologies owing to their favorable security and high energy densities.However,operating in wi...Polymer-electrolyte-based solid-state Li metal batteries with high-voltage Ni-rich cathodes are promising energy storage technologies owing to their favorable security and high energy densities.However,operating in wide temperature range and at high voltage is a tough challenge for them.Herein,F/N donating fluorinated-amide-based plasticizers regulated polymer electrolyte capable of enabling high-voltage Li||LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)(NCM811)batteries with excellent performance in wide temperature range is developed.F/N donating fluorinated-amide-based plasticizers significantly improve ionic conductivity(1.52 mS/cm at 30℃),enhance oxidation stability(5.0 V vs.Li^(+)/Li)and fabricate robust LiF/Li_(3)N-rich electrode-electrolyte interphases,which significantly improve the interface stability of Li metal anode and NCM811 cathode.The designed polymer electrolyte is nonflammable and has excellent dimensional stability at 200℃.Capitalizing on these advantageous attributes,the Li||NCM811 cells show excellent cycle stability and rate capability from−20℃ to 60℃ at high voltages(∼4.6 V),and under high-loading full cell condition,which display impressive capacity retention of 84.4%after 1000 cycles and ultrahigh capacity of 154.8 mAh/g at 10 C.This work provides a rational design strategy of polymer electrolytes for wide-temperature high-energy solid-state Li metal batteries.展开更多
Lithium metal anodes are promising for next-generation high-energy batteries,but their practical application is limited by safety issues arising from uncontrolled Li metal growth.To address these challenges,we report ...Lithium metal anodes are promising for next-generation high-energy batteries,but their practical application is limited by safety issues arising from uncontrolled Li metal growth.To address these challenges,we report a scalable approach to fabricate flexible,free-standing 3D carbon textiles derived from low-cost cellulose textiles,uniformly decorated with cobalt particles(Co@c-Textile).The work function difference between cobalt particles and carbon induces a redistribution of surface charge,enabling the synergistic combination of cobalt and defective carbon to enhance lithiophilicity and promote uniform Li growth through accelerate surface diffusion.Detailed analyses further reveal that lithium preferentially plates not directly on the cobalt particles,but on the adjacent carbon regions,eventually encapsulating the cobalt and growing uniformly across the carbon surface.As a result,the Co@c-Textile@Li anode exhibits prolonged and stable cycling over 700 h in symmetric cells,along with improved Li+transport kinetics.Furthermore,in full-cells with Li Fe PO_(4)(LFP)cathodes,it delivers over 90%capacity retention at both1C and 4C,and also demonstrates excellent stability under high-voltage conditions with Ni-rich cathodes.These findings clarify the role of transition metal/carbon composites in directing uniform Li plating and provide a viable strategy for designing advanced carbon-hosted Li metal anodes.展开更多
High-pressure electrides,characterized by the presence of interstitial quasi-atoms(ISQs),possess unique electronic structures and physical properties,such as diverse dimensions of electride states exhibiting different...High-pressure electrides,characterized by the presence of interstitial quasi-atoms(ISQs),possess unique electronic structures and physical properties,such as diverse dimensions of electride states exhibiting different superconductivity,which has attracted significant attention.Here,we report a new electron-deficient type of electride Li_(4)Al and identify its phase transition progress with pressurization,where the internal driving force behind phase transitions,bonding characteristics,and superconducting behaviors have been revealed based on first-principles density functional theory.Through analysis of the bonding properties of electride Li_(4)Al,we demonstrate that the ISQs exhibiting increasingly covalent characteristics between Al ions play a critical role in driving the phase transition.Our electron–phonon coupling calculations indicate that all phases exhibit superconducting behaviors.Importantly,we prove that the ISQs behave as free electrons and demonstrate that the factor governing T_(c) is primarily derived from Li-p-hybridized electronic states with ISQ compositions.These electronic states are scattered by low-frequency phonons arising from mixed vibrations of Li and Al affected by ISQs to enhance electron–phonon coupling.Our study largely expands the research scope of electrides,provides new insight for understanding phase transitions,and elucidates the effects of ISQs on superconducting behavior.展开更多
Rechargeable lithium–sulfur(Li–S)batteries are considered promising next-generation energy storage systems owing to their high theoretical energy density,but their application is hindered by the shuttle effect arisi...Rechargeable lithium–sulfur(Li–S)batteries are considered promising next-generation energy storage systems owing to their high theoretical energy density,but their application is hindered by the shuttle effect arising from dissolved lithium polysulfides(LiPSs).Herein,we design an optimized electrolyte to achieve long-term stability by employing an appropriate low-polarity solvent.A combination of diethyl ether(DEE)and 1,2-dimethoxyethane(DME)was selected to improve Li metal stability even in the presence of LiPSs.The DEE/DME electrolyte not only suppresses parasitic reactions between Li and LiPSs but also promotes uniform Li deposition.Moreover,operando optical microscopy was employed to directly visualize electrolyte stability and dendrite evolution in real time,while quantitative analysis was conducted via normalized hue index and contour image mapping.The enhanced anode stability of the DEE/DME electrolyte enabled excellent cycling performance,retaining 80.14%of its initial capacity after300 cycles at 3 C,while maintaining superior performance under practical conditions with high sulfur loading and a low E/S ratio.These findings highlight that solvent properties critically influence Li metal stabilization in Li–S batteries and underscore the significance of solvent engineering in electrolyte design.展开更多
Traditional Chinese medicine has opened new pathways and provided fresh perspectives for the treatment of uremic pruritus(UP)through syndrome differentiation and treatment.This paper summarizes the clinical experience...Traditional Chinese medicine has opened new pathways and provided fresh perspectives for the treatment of uremic pruritus(UP)through syndrome differentiation and treatment.This paper summarizes the clinical experience of Professor Li Qi in treating this condition.Professor Li Qi points out that the fundamental pathogenesis of UP lies in yang deficiency of the spleen and kidney.On this basis,either external cold entering the interior or yang deficiency leading to cold congelation may result in malnutrition of the skin,thereby triggering pruritus.In clinical practice,slight sweating therapy is applied to release the exterior and expel pathogenic factors or to warm and resolve cold fluid retention,achieving satisfactory therapeutic outcomes.展开更多
DealEdrtor,Dear Editor,Spodoptera litura,commonly known as the tobacco cutworm,is a polyphagous agricultural pest worldwide,causing significant economic losses to a wide range of crops.Over the past decades,S.litura h...DealEdrtor,Dear Editor,Spodoptera litura,commonly known as the tobacco cutworm,is a polyphagous agricultural pest worldwide,causing significant economic losses to a wide range of crops.Over the past decades,S.litura has developed high resistance levels to multiple chemical insecticides(Li et al.,2024),and shown low susceptibility to transgenic Bacillus thuringiensis(Bt)cotton(Wan et al.,2008).展开更多
Li_(7)La_(3)Zr_(2)O_(12)-based electrolytes have got great promise for solid-state lithium(Li)metal batteries because of their high elastic modulus and wide electrochemical stability window.However,the insufficient co...Li_(7)La_(3)Zr_(2)O_(12)-based electrolytes have got great promise for solid-state lithium(Li)metal batteries because of their high elastic modulus and wide electrochemical stability window.However,the insufficient contact and heterogeneous Li deposition severely hinder their practical applications.Here,a flexible ternary polymethacrylate(PMA)matrix is designed to incorporate with Ta-doped Li_(7)La_(3)Zr_(2)O_(12)(LLZTO-PMA).The PMA matrix ensures excellent interfacial contact,while the synergistic effects of its polar carbonyl groups and its interaction with LLZTO creating fast interfacial Li^(+)pathways yield a high ionic conductivity of 0.266 mS cm^(-1)at 20℃.Moreover,the interaction between LLZTO and PMA matrix further guides the formation of a hybrid LiF/Li_(3)N-rich solid electrolyte interphase,which allows a fast Li^(+)interfacial kinetic due to its lowered Li^(+)diffusion barrier.Consequently,the LLZTO-PMA electrolyte contributes an ultra-stable Li anode interphase,attaining a lifespan exceeding 10,000 h in symmetric cells and retaining over 96%capacity after 600 cycles in full battery,demonstrating a breakthrough for high-performance solid-state batteries.展开更多
Born in Penglai,Shandong Province in 1942,Jiang Baolin is currently working as a doctoral supervisor at the Chinese National Academy of Arts.He’s also a committee member and researcher at the China National Academy o...Born in Penglai,Shandong Province in 1942,Jiang Baolin is currently working as a doctoral supervisor at the Chinese National Academy of Arts.He’s also a committee member and researcher at the China National Academy of Painting.He graduated from Zhejiang Academy of Fine Arts(now China Academy of Art),studying under such masters as Lu Yanshao and Gu Kunbo,and later pursued his master’s degree at the Central Academy of Fine Arts,sitting at the feet of masters like Li Keran.展开更多
Solid-state lithium batteries are considered one of the most promising next-generation energy storage technologies owing to their safety and high energy density.The key to solid-state lithium battery advancement lies ...Solid-state lithium batteries are considered one of the most promising next-generation energy storage technologies owing to their safety and high energy density.The key to solid-state lithium battery advancement lies in the design and optimization of suitable solid-state electrolytes.Among various solid-state electrolytes,solid-state composite polymer electrolytes offer the combined benefits of solid inorganic electrolytes and solid polymer electrolytes.In particular,Li1_(+x)Al_(x)Ti_(2-x)(PO_(4))_(3)(LATP)/polymer composite polymer electrolytes exhibit high ionic conductivity due to LATP and improved flexibility from the polymer matrix.These systems also demonstrate robust mechanical properties and excellent electrode contact.While recent reviews have primarily focused on the performance of LATP/polymer composite polymer electrolytes and the general effects of composite polymer electrolyte modifications for solid-state lithium battery applications,this review provides a concise overview of the Li^(+)transport mechanisms in LATP/polymer composite polymer electrolytes and strategies to enhance ionic conductivity.It highlights several modification approaches,including the use of fillers,additives,and LATP coatings,which markedly influence the performance of composite polymer electrolytes across different polymer matrices.Finally,the review addresses the challenges of LATP/polymer composite polymer electrolytes and outlines key research directions for developing advanced composite polymer electrolytes for high-performance solid-state lithium batteries.展开更多
Sulfide-based all-solid-state lithium metal batteries(ASSLMBs)have garnered significant attention due to their potential for high energy density and enhanced safety.However,their practical application is hindered by c...Sulfide-based all-solid-state lithium metal batteries(ASSLMBs)have garnered significant attention due to their potential for high energy density and enhanced safety.However,their practical application is hindered by challenges such as uneven lithium(Li)deposition and the growth of Li dendrites.In this contribution,we propose an amorphous fluorinated interphase(AFI),composed of amorphous LiF and lithiated graphite,to regulate the interfacial Li-ion transport kinetics through in-situ interface chemistry.Amorphous LiF,which exhibits a significantly enhanced Li-ion diffusion compared to its crystalline counterpart,works synergistically with lithiated graphite to promote both short-range and long-range Li-ion transport kinetics at the Li/electrolyte interface.As a result,the Li anode with AFI demonstrates a remarkably enhanced critical current density of 1.6 mA cm^(−2)and an extended cycle life exceeding 1100 h.The Li||LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2)full cell also achieves a high discharge capacity of 125.7 mA h g^(−1)and retains 71.2%of its initial capacity after 200 cycles.This work provides valuable insights into the rational design of artificial anodic interphase to regulate interfacial Li-ion transport kinetics in ASSLMBs.展开更多
基金supported by the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(No.RS-2023-00217581)supported by the Nano&Material Technology Development Program through the National Research Foundation of Korea(NRF)funded by Ministry of Science and ICT(RS-2024-00406724)supported by Basic Science Research Program through the National Research Foundation of Korea(NRF)funded by the Ministry of Education(RS-2025-25430676)。
文摘The practical deployment of lithium metal batteries remains severely constrained,especially under elevated temperatures.Although metal-organic frameworks(MOFs)improve the thermal stability of liquid electrolytes by capturing them in well-ordered sub-nanopores,interparticle voids between MOF particles readily absorb liquid electrolyte,obscuring our understanding of the intrinsic role of nanopores in directing Li^(+)transport.To address this challenge,we introduce a one-dimensional(1D)MOF model architecture that eliminates interparticle effects and enables direct observation of Li^(+)solvation and de-solvation dynamics.Comparative studies of 1D HKUST-1 and ZIF-8 uncover distinct transport behaviors,supported by both experimental measurements and neural network potential-based molecular dynamics simulations.Building on these insights,we construct a hierarchical core-shell MOF architecture by integrating ZIF-8(core)and HKUST-1(shell)onto a hybrid fiber scaffold.This design harnesses the complementary strengths of both MOFs to achieve continuous ion pathways,directional Li^(+)conduction,and improved thermal and electrochemical resilience.
基金financial support providedby the National Natural Science Foundation of China (Nos.92475203 and 52474374)the Joint Fund of Henan Province Science and Technology R&D Program,China (No.225200810035)the Research Initiation Grant for High-Level Talents by the Henan Academy of Sciences,China(No.232007016).
文摘To improve the solid–solid interface performance of all solid-state lithium batteries(ASSLBs),a novel sandwich-structured solid electrolyte(SSE,total thickness of 0.7 mm)was investigated.It comprises a central layer of perovskite-type Li_(0.37)Sr_(0.44)Zr_(0.25)Ta_(0.75)O_(3)(LSZT)electrolyte(thickness of 0.5 mm)sandwiched between two layers of composite solid polymer electrolyte(CSPE,each with a thickness of 0.1 mm).The thin CSPE interlayer not only effectively reduces interfacial resistance between LSZT and electrodes,but also suppresses Li-induced reduction degradation of LSZT while ensuring uniform current density distribution across the interface.The SSE demonstrates an ionic conductivity of 8.76×10^(−5)S·cm^(−1)at 30℃,increasing to 1.13×10^(−3)S·cm^(−1)at 100℃,with an activation energy of 0.36 eV.In addition,SSE is stable for Li metal and achieves electrochemical stability up to 4.58 V vs.Li^(+)/Li.SSE shows outstanding electrode/electrolyte interfacial compatibility and significant suppression of the growth of Li dendrite.Ascribing to these merits,Li|SSE|Li symmetric cell maintained stable operation for 500 h at a current density of 0.3 mA·cm^(−2)without short circuit,confirming robust interfacial compatibility between SSE and Li electrode.The all-solid-state LiFePO_(4)|Li battery with SSE has an initial reversible discharge capacity of 109.8 mAh·g^(−1)and a reversible capacity of 118.1 mAh·g^(−1)after 50 cycles at a charge/discharge rate of 0.1C(30℃),demonstrating good cycling performance.
基金the Program of National Key Research and Development of China (No.2022YFB3603702, No. 2023YFC3905301)Hubei Provincial Natural Science Foundation of China (No. 2025AFA025)the Research Fund of Jianghan University (No. 2023KJZX01)。
文摘The random distribution of one-dimensional nanofillers in composite polymer electrolytes(CPEs) typically results in tortuous ion transport pathways,severely limiting ionic conductivity and Li^(+) flux uniformity.Herein,an innovative electric field-assisted strategy is proposed to construct vertically aligned ion channels in CPEs using lithiated halloysite nano tubes(HNTs-SO_(3)Li)embedded within a polyurethane acrylate/polyethylene glycol diacrylate(PUA/PEGDA) matrix.Under an alternating electric field,the nanotubes orient perpendicularly,forming continuous,low-tortuosity pathways that significantly enhance roomtemperature ionic conductivity.The aligned structure not only shortens Li+transport distances but also homogenizes ion flux at the electrode interface,effectively suppressing lithium dendrite growth.Electrochemical characterization reveals exceptional stability.Three-dimensional structural reconstruction and ion transport simulations further demonstrate that the ordered channels promote uniform Li+distribution and faster ion kinetics compared to disordered systems.This study provides a scalable and efficient approach to designing high-performance CPEs for next-generation solid-state batteries,addressing critical challenges in ionic conductivity,interfacial stability,and dendrite suppression.
基金support from the Major basic research project of Natural Science Foundation of Shandong Province(No.ZR2023ZD12)Singapore National Research Foundation Investigatorship(No.NRFNRFI08-2022-0009)NUS R&G Postdoc Fellowship Program.
文摘Lithium-oxygen(Li-O_(2))battery is favored among“beyond lithiumion”technologies for sustainability because of its exceptional energy density.Major impediments are the poor cycle stability and grievous capacity degradation at high current densities.We address these issues by a“killing two birds with one stone”O_(2)-pressure protocol.It first resolves efficient O_(2) mass transport at high rates..The accelerated reaction kinetics optimizes the composition and growth pathway of discharge products.This protocol secondly achieves protection of Li anodes via densifying corrosion layers on them.Consequently,the battery delivers both ultrahigh discharge capacity(>9,000 mAh g^(-1))at 3,000 mA g^(-1) and excellent cycling stability.Under a dual-strategy effect of high-pressure O_(2) and artificial protection layers,the battery actualizes over 11-fold increase in cycle life of 5,170 h(2,585 cycles).The strategy opens avenues for advancing Li-O_(2) batteries towards practical application and confers the extension to other gas-based batteries.
基金supported by the National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIT)(No. 2020R1A5A1019131)supported by a Korea Institute of Energy Technology Evaluation and Planning (KETEP)grant funded by the Korean government (MOTIE)(RS-2022-KP002703, Sector coupling energy industry advancement manpower training program)+1 种基金supported by the Korea Institute of Energy Technology Evaluation and Planning(KETEP)the Ministry of Trade,Industry&Energy(MOTIE) of the Republic of Korea (RS-2024-00469587)
文摘Anode-free lithium-metal batteries(AFLMBs)offer high energy density.However,lithium dendrite growth and interfacial instability remain critical obstacles to their commercialization.Here,lithiophilic nanosized(∼5 nm)LixSn combined with an inorganic-rich@polymer dual-layer structure was constructed on a Cu current collector,prepared via a galvanostatic process using a dual-lithium salt electrolyte in a Cu||Cu configuration.The polymer outer layer,initiated by LixSn,reinforces the solid electrolyte interphase(SEI),providing mechanical robustness and enabling stable cycling in an ether-based electrolyte.Furthermore,the Sn and LixSn particle sizes can be effectively tuned by adjusting the galvanostatic discharge current.The nanosized LixSn significantly lowers the nucleation overpotential and creates abundant lithiophilic nucleation sites,resulting in uniform,dense Li plating/stripping.The modified Cu collector demonstrates superior performance in ether-based electrolytes,achieving over 92%capacity retention after 100 cycles at a current density of 1.5 mA cm^(−2)and an area capacity of 1.1 mAh cm^(−2).This work provides a simple,eco-friendly,and scalable approach for fabricating high-performance anode-free current collectors for AFLMBs.
基金supported by the Science Foundation of High-Level Talents of Wuyi University(2019AL017,2021AL002)。
文摘High-voltage Li metal batteries hold great promise for next-generation energy storage,but constructing robust and highly conductive electrode/electrolyte interfaces via electrolyte engineering to enhance the battery performance is still a challenge.Herein,we propose a non-coordinating solvent anchoring strategy to regulate fluorinated amide electrolyte to enhance the stability and ionic conductivity of the interfaces.Specifically,hexafluorobenzene is employed to anchor fluorinated amide solvent by the robust dipole–dipole interactions,which weaken the coordination between fluorinated amide and Li^(+),facilitate more anions coordinating with Li^(+),and form more ion aggregates.Consequently,stable and highly conductive electrode/electrolyte interfaces enriched with LiF and Li_(3)N are constructed,drastically improving the interfacial stability and reducing interface impedance of Li metal anodes and LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)(NCM811)cathodes.Such a rationally designed electrolyte demonstrates excellent flame retardancy,high oxidation stability(5.1 V vs.Li^(+)/Li),and enhanced low-temperature ionic conductivity.As a result,this electrolyte substantially enhances the high-voltage cycle stability(-4.8 V),rate capability(-50 C)and low-temperature cycle performance(-20℃)of Li||NCM811 cells,which retain 80.0%of the initial capacity over 600 cycles at 4.7 V.This research offers a promising strategy to design ideal electrolytes for highperformance Li metal batteries.
基金supported by the Science Foundation of High-Level Talents of Wuyi University(Nos.2019AL017,2021AL002).
文摘Polymer-electrolyte-based solid-state Li metal batteries with high-voltage Ni-rich cathodes are promising energy storage technologies owing to their favorable security and high energy densities.However,operating in wide temperature range and at high voltage is a tough challenge for them.Herein,F/N donating fluorinated-amide-based plasticizers regulated polymer electrolyte capable of enabling high-voltage Li||LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)(NCM811)batteries with excellent performance in wide temperature range is developed.F/N donating fluorinated-amide-based plasticizers significantly improve ionic conductivity(1.52 mS/cm at 30℃),enhance oxidation stability(5.0 V vs.Li^(+)/Li)and fabricate robust LiF/Li_(3)N-rich electrode-electrolyte interphases,which significantly improve the interface stability of Li metal anode and NCM811 cathode.The designed polymer electrolyte is nonflammable and has excellent dimensional stability at 200℃.Capitalizing on these advantageous attributes,the Li||NCM811 cells show excellent cycle stability and rate capability from−20℃ to 60℃ at high voltages(∼4.6 V),and under high-loading full cell condition,which display impressive capacity retention of 84.4%after 1000 cycles and ultrahigh capacity of 154.8 mAh/g at 10 C.This work provides a rational design strategy of polymer electrolytes for wide-temperature high-energy solid-state Li metal batteries.
基金supported by’regional innovation mega project’program through the Korea Innovation Foundation funded by Ministry of Science and ICT(2710033465)the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(RS-2025-25441256)。
文摘Lithium metal anodes are promising for next-generation high-energy batteries,but their practical application is limited by safety issues arising from uncontrolled Li metal growth.To address these challenges,we report a scalable approach to fabricate flexible,free-standing 3D carbon textiles derived from low-cost cellulose textiles,uniformly decorated with cobalt particles(Co@c-Textile).The work function difference between cobalt particles and carbon induces a redistribution of surface charge,enabling the synergistic combination of cobalt and defective carbon to enhance lithiophilicity and promote uniform Li growth through accelerate surface diffusion.Detailed analyses further reveal that lithium preferentially plates not directly on the cobalt particles,but on the adjacent carbon regions,eventually encapsulating the cobalt and growing uniformly across the carbon surface.As a result,the Co@c-Textile@Li anode exhibits prolonged and stable cycling over 700 h in symmetric cells,along with improved Li+transport kinetics.Furthermore,in full-cells with Li Fe PO_(4)(LFP)cathodes,it delivers over 90%capacity retention at both1C and 4C,and also demonstrates excellent stability under high-voltage conditions with Ni-rich cathodes.These findings clarify the role of transition metal/carbon composites in directing uniform Li plating and provide a viable strategy for designing advanced carbon-hosted Li metal anodes.
基金supported by the National Key Research and Development Program of China (Grant Nos.2023YFA1406200 and 2022YFA-1405500)the National Natural Science Foundation of China (Grant Nos.12304021 and 52072188)+3 种基金Zhejiang Provincial Natural Science Foundation of China (Grant Nos.LQ23A040004 and MS26A040028)Natural Science Foundation of Ningbo (Grant Nos.2022J091 and ZX2025001430)the Program for Science and Technology Innovation Team in Zhejiang (Grant No.2021R01004)the Program for Changjiang Scholars and Innovative Research Team in University (Grant No.IRT_15R23)。
文摘High-pressure electrides,characterized by the presence of interstitial quasi-atoms(ISQs),possess unique electronic structures and physical properties,such as diverse dimensions of electride states exhibiting different superconductivity,which has attracted significant attention.Here,we report a new electron-deficient type of electride Li_(4)Al and identify its phase transition progress with pressurization,where the internal driving force behind phase transitions,bonding characteristics,and superconducting behaviors have been revealed based on first-principles density functional theory.Through analysis of the bonding properties of electride Li_(4)Al,we demonstrate that the ISQs exhibiting increasingly covalent characteristics between Al ions play a critical role in driving the phase transition.Our electron–phonon coupling calculations indicate that all phases exhibit superconducting behaviors.Importantly,we prove that the ISQs behave as free electrons and demonstrate that the factor governing T_(c) is primarily derived from Li-p-hybridized electronic states with ISQ compositions.These electronic states are scattered by low-frequency phonons arising from mixed vibrations of Li and Al affected by ISQs to enhance electron–phonon coupling.Our study largely expands the research scope of electrides,provides new insight for understanding phase transitions,and elucidates the effects of ISQs on superconducting behavior.
基金supported by the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(RS-2024-00455177)the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(RS-2025-00518953)+2 种基金the National Research Council of Science&Technology(NST)grant by the Korea government(MSIT)(GTL24012-000)the support by the National Natural Science Foundation of China(T2322015)the support by The Ministry of Science and ICT in Korea via KBSI(C524100)。
文摘Rechargeable lithium–sulfur(Li–S)batteries are considered promising next-generation energy storage systems owing to their high theoretical energy density,but their application is hindered by the shuttle effect arising from dissolved lithium polysulfides(LiPSs).Herein,we design an optimized electrolyte to achieve long-term stability by employing an appropriate low-polarity solvent.A combination of diethyl ether(DEE)and 1,2-dimethoxyethane(DME)was selected to improve Li metal stability even in the presence of LiPSs.The DEE/DME electrolyte not only suppresses parasitic reactions between Li and LiPSs but also promotes uniform Li deposition.Moreover,operando optical microscopy was employed to directly visualize electrolyte stability and dendrite evolution in real time,while quantitative analysis was conducted via normalized hue index and contour image mapping.The enhanced anode stability of the DEE/DME electrolyte enabled excellent cycling performance,retaining 80.14%of its initial capacity after300 cycles at 3 C,while maintaining superior performance under practical conditions with high sulfur loading and a low E/S ratio.These findings highlight that solvent properties critically influence Li metal stabilization in Li–S batteries and underscore the significance of solvent engineering in electrolyte design.
基金Supported by National Program for Inheriting the Academic Experience of Senior TCM Experts(Seventh Batch),National Administration of Traditional Chinese Medicine([2022]No.76)Yunnan Provincial Collaborative Research Project on Major and Difficult Diseases with Integrated Traditional Chinese and Western Medicine(Yun Cai She No.163[2024])-Chronic Renal Failure(300072)Yunnan Provincial Senior TCM Expert Li Qi Heritage Studio Project.
文摘Traditional Chinese medicine has opened new pathways and provided fresh perspectives for the treatment of uremic pruritus(UP)through syndrome differentiation and treatment.This paper summarizes the clinical experience of Professor Li Qi in treating this condition.Professor Li Qi points out that the fundamental pathogenesis of UP lies in yang deficiency of the spleen and kidney.On this basis,either external cold entering the interior or yang deficiency leading to cold congelation may result in malnutrition of the skin,thereby triggering pruritus.In clinical practice,slight sweating therapy is applied to release the exterior and expel pathogenic factors or to warm and resolve cold fluid retention,achieving satisfactory therapeutic outcomes.
基金supported by the National Natural Science Foundation of China(32071477,32272634).
文摘DealEdrtor,Dear Editor,Spodoptera litura,commonly known as the tobacco cutworm,is a polyphagous agricultural pest worldwide,causing significant economic losses to a wide range of crops.Over the past decades,S.litura has developed high resistance levels to multiple chemical insecticides(Li et al.,2024),and shown low susceptibility to transgenic Bacillus thuringiensis(Bt)cotton(Wan et al.,2008).
基金supported by the National Natural Science Foundation of China(No.22305106)the Postdoctoral Fellowship Program of CPSF(GZC20230682)Beijing Key Laboratory of High-Entropy Energy materials and Devices,Beijing Institute of Nanoenergy and Nanosystems(No.GS 2025ZD005)。
文摘Li_(7)La_(3)Zr_(2)O_(12)-based electrolytes have got great promise for solid-state lithium(Li)metal batteries because of their high elastic modulus and wide electrochemical stability window.However,the insufficient contact and heterogeneous Li deposition severely hinder their practical applications.Here,a flexible ternary polymethacrylate(PMA)matrix is designed to incorporate with Ta-doped Li_(7)La_(3)Zr_(2)O_(12)(LLZTO-PMA).The PMA matrix ensures excellent interfacial contact,while the synergistic effects of its polar carbonyl groups and its interaction with LLZTO creating fast interfacial Li^(+)pathways yield a high ionic conductivity of 0.266 mS cm^(-1)at 20℃.Moreover,the interaction between LLZTO and PMA matrix further guides the formation of a hybrid LiF/Li_(3)N-rich solid electrolyte interphase,which allows a fast Li^(+)interfacial kinetic due to its lowered Li^(+)diffusion barrier.Consequently,the LLZTO-PMA electrolyte contributes an ultra-stable Li anode interphase,attaining a lifespan exceeding 10,000 h in symmetric cells and retaining over 96%capacity after 600 cycles in full battery,demonstrating a breakthrough for high-performance solid-state batteries.
文摘Born in Penglai,Shandong Province in 1942,Jiang Baolin is currently working as a doctoral supervisor at the Chinese National Academy of Arts.He’s also a committee member and researcher at the China National Academy of Painting.He graduated from Zhejiang Academy of Fine Arts(now China Academy of Art),studying under such masters as Lu Yanshao and Gu Kunbo,and later pursued his master’s degree at the Central Academy of Fine Arts,sitting at the feet of masters like Li Keran.
基金supported by grants from the National Natural Science Foundation of China(Grant Nos.52302303,52472247,52172229,52272201,52072136,51972257)the Natural Science Foundation of Hubei Province(JCZRYB202500537).
文摘Solid-state lithium batteries are considered one of the most promising next-generation energy storage technologies owing to their safety and high energy density.The key to solid-state lithium battery advancement lies in the design and optimization of suitable solid-state electrolytes.Among various solid-state electrolytes,solid-state composite polymer electrolytes offer the combined benefits of solid inorganic electrolytes and solid polymer electrolytes.In particular,Li1_(+x)Al_(x)Ti_(2-x)(PO_(4))_(3)(LATP)/polymer composite polymer electrolytes exhibit high ionic conductivity due to LATP and improved flexibility from the polymer matrix.These systems also demonstrate robust mechanical properties and excellent electrode contact.While recent reviews have primarily focused on the performance of LATP/polymer composite polymer electrolytes and the general effects of composite polymer electrolyte modifications for solid-state lithium battery applications,this review provides a concise overview of the Li^(+)transport mechanisms in LATP/polymer composite polymer electrolytes and strategies to enhance ionic conductivity.It highlights several modification approaches,including the use of fillers,additives,and LATP coatings,which markedly influence the performance of composite polymer electrolytes across different polymer matrices.Finally,the review addresses the challenges of LATP/polymer composite polymer electrolytes and outlines key research directions for developing advanced composite polymer electrolytes for high-performance solid-state lithium batteries.
基金supported by the Beijing Municipal Natural Science Foundation(L223009)the National Natural Science Foundation of China(22209014,22479012)+1 种基金the Hebei Natural Science Foundation(E2024208084)the Fundamental Research Funds for the Central Universities(2023CX01031)。
文摘Sulfide-based all-solid-state lithium metal batteries(ASSLMBs)have garnered significant attention due to their potential for high energy density and enhanced safety.However,their practical application is hindered by challenges such as uneven lithium(Li)deposition and the growth of Li dendrites.In this contribution,we propose an amorphous fluorinated interphase(AFI),composed of amorphous LiF and lithiated graphite,to regulate the interfacial Li-ion transport kinetics through in-situ interface chemistry.Amorphous LiF,which exhibits a significantly enhanced Li-ion diffusion compared to its crystalline counterpart,works synergistically with lithiated graphite to promote both short-range and long-range Li-ion transport kinetics at the Li/electrolyte interface.As a result,the Li anode with AFI demonstrates a remarkably enhanced critical current density of 1.6 mA cm^(−2)and an extended cycle life exceeding 1100 h.The Li||LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2)full cell also achieves a high discharge capacity of 125.7 mA h g^(−1)and retains 71.2%of its initial capacity after 200 cycles.This work provides valuable insights into the rational design of artificial anodic interphase to regulate interfacial Li-ion transport kinetics in ASSLMBs.
