AlNbO_4,as lithium-ion batteries（LIBs） anode,has a high theoretical capacity of 291.5 m Ah g^-1.Here,AlNbO_4 anode materials were synthesized through a simple solid-state method.The structure,morphology and electroc...AlNbO_4,as lithium-ion batteries（LIBs） anode,has a high theoretical capacity of 291.5 m Ah g^-1.Here,AlNbO_4 anode materials were synthesized through a simple solid-state method.The structure,morphology and electrochemical performances of AlNbO4 anode were systematically investigated.The results show that AlNbO4 is monoclinic with C2/m space group.The scanning electron microscopy（SEM） and transmission electron microscopy（TEM） characterizations reveal the AlNbO_4 particles with the size of 100 nm^–2 lm.As a lithium-ion batteries anode,AlNbO4 delivers a high reversible capacity and good rate capability.The discharge capacity is as high as 151.0 m Ah g^-1 after 50 charge and discharge cycles at 0.1 C corresponding to capacity retention of 90.7 %.When the current density increases to 5.0C,AlNbO4 anode displays reversible discharge capacity of 73.6 m Ah g^-1 at the50 th cycle.展开更多
Sodium ion batteries(SIBs)are expected to replace lithium ion batteries(LIBs)as the next promising rechargeable batteries owing to the abundant distribution and low cost of sodium resources.Exploring a suitable anode ...Sodium ion batteries(SIBs)are expected to replace lithium ion batteries(LIBs)as the next promising rechargeable batteries owing to the abundant distribution and low cost of sodium resources.Exploring a suitable anode material is essential to realize its commercialization.Tin disulfide(SnS_(2))is a promising anode on account of its high theoretical capacity and large interlayer spacing.However,low intrinsic conductivity,shuttle effect of polysulfide,and large volume expansion have greatly hindered its application in SIBs.In this review,we first introduce the basic properties,storage mechanisms,and drawbacks of SnS_(2).Focusing on these drawbacks,we systematically elaborate four structural design strategies,including compositing with carbon materials,nanostructure design,heterostructure design,and heteroatom doping.Finally,we summarize these four structural design methods and provide insight into the future development of the SnS_(2) anode.We hope that this review will give some guidance and inspiration for SnS_(2) anode design to achieve its commercialization sooner.展开更多
The authors regret that the author Cheng Zeng’s name was spelled incorrectly in the original article.The correct spelling is as presented here.Furthermore,the authors regret that the list of author contributions in t...The authors regret that the author Cheng Zeng’s name was spelled incorrectly in the original article.The correct spelling is as presented here.Furthermore,the authors regret that the list of author contributions in the original manuscript was incomplete.The complete list of author contributions is shown below.展开更多
The renewable energy revolution and its practical applications demand the need for large solar storage options.Lithium-ion batteries may remain top in terms of their utilization and performance,however their cost-per-...The renewable energy revolution and its practical applications demand the need for large solar storage options.Lithium-ion batteries may remain top in terms of their utilization and performance,however their cost-per-kWh impacts their usage,and researchers prefer to stick to sodium-ion chemistry as a large storage option.展开更多
High-capacity silicon(Si)-based anodes have been recognized as particularly promising candidates for high-energy-density lithium-ion batteries(LIBs).Rational design and tailoring of an artificial interface for Si anod...High-capacity silicon(Si)-based anodes have been recognized as particularly promising candidates for high-energy-density lithium-ion batteries(LIBs).Rational design and tailoring of an artificial interface for Si anodes can effectively mitigate volume expansion,suppress detrimental side reactions,and enhance lithium-ion(Li+)diffusion kinetics—three critical factors widely acknowledged as fundamental prerequisites for enabling long-term cycling stability and fast-charging capabilities.Therefore,we introduced an organic/inorganic composite interface design strategy combining high elasticity and ion-conductive properties.Lithium metasilicate(LMS)not only functions as an effective protective layer and Li+conductor but also inhibits lithium hexafluorophosphate(LiPF_(6))hydrolysis to suppress the generation of corrosive hydrofluoric acid(HF).When integrated with carboxyl-rich polyacrylic acid(PAA),the nanocomposite coating layer demonstrates high elasticity to accommodate volume expansion,establishes continuous Li+diffusion pathways,and promotes the formation of a robust lithium fluoride(LiF)-rich artificial solid-electrolyte interphase(SEI).Consequently,the as-developed Si@PL-10 electrode demonstrates significantly enhanced cycling performance(2297 mAh g^(−1)after 200 cycles at 1 A g^(−1))and high-rate capability(1854 mAh g^(−1)at 6 A g^(−1)).This work provides valuable insights for designing scalable multifunctional coatings for high-performance Si anodes.展开更多
The low theoretical capacity(372 mA h g^(-1))of the conventional commercial graphite anode limits its widespread applications,so it is urgent to prepare novel high-capacity anodes.Here,as a modification of graphite,a ...The low theoretical capacity(372 mA h g^(-1))of the conventional commercial graphite anode limits its widespread applications,so it is urgent to prepare novel high-capacity anodes.Here,as a modification of graphite,a Si/graphite/Cu–carbon nanotube composite is prepared using a scalable and low-cost method including ball-milling of commercial micro-sized Si,Cu and graphite,followed by in situ growth of carbon nanotubes catalyzed by Cu.The Si,Cu and graphite are homogeneously mixed in the composite.Meanwhile,in situ synthesized carbon nanotubes are able to further cross-link all components tightly and construct a three-dimensional conductive network.As an anode for lithium-ion batteries,the as-prepared composite presents a reversible capacity of 738.3 mA h g^(-1)with a capacity retention of 87.6%after 100 cycles at 0.2 A g^(-1)and a reversible capacity of 538 mA h g^(-1)after 200 cycles at 0.5 A g^(-1),which is much better than those of Si/graphite and Si/graphite/Cu composites.The enhanced electrochemical performance of the Si/graphite/Cu–carbon nanotube composite is mainly attributed to the graphite,Cu and carbon nanotube contents which are synergistically beneficial for improving the structural integrity and electrical conductivity of the composite.展开更多
Li_(3)VO_(4)(LVO)has been widely considered as a promising new insertion-type anode material for lithiumion batteries.However,the surface instability of LVO nanoparticles leads to a sharp decline in the first coulombi...Li_(3)VO_(4)(LVO)has been widely considered as a promising new insertion-type anode material for lithiumion batteries.However,the surface instability of LVO nanoparticles leads to a sharp decline in the first coulombic efficiency and cycle capacity.In this work,an ionic interface nanolayer of 5-10 nm is effectively coated on the LVO nanoparticle surface by an in situ liquid chemical reaction.展开更多
Nb2O5-carbon nanocomposite is synthesized through a facile one-step hydrothermal reaction from sucrose as the carbon source, and stuclled as an anode material for high-performance lithium ion battery. The structural c...Nb2O5-carbon nanocomposite is synthesized through a facile one-step hydrothermal reaction from sucrose as the carbon source, and stuclled as an anode material for high-performance lithium ion battery. The structural characterizations reveal that the nanocomposite possesses a core-shell structure with a thin layer of carbon shell homogeneously coated on the Nb2O5 nanocrystals. Such a unique structure enables the composite electrode with a long cycle life by preventing the Nb2O5 from volume change and pulverization during the charge-discharge process. In addition, the carbon shell efficiently improves the rate capability. Even at a current density of 500 mA.g-1, the composite electrode still exhibits a specific capacity of ~100 mAh.g-1. These results suggest the possibility to utilize the Nb2O5-carbon core-shell composite as a high performance anode material in the practical application of lithium ion battery.展开更多
Porous carbon spheres derived from the facile hydrothermal treatment associated with the calcination process exhibit the good spherical morphology and unique porous structure.For the Li-based half-cell test,porous car...Porous carbon spheres derived from the facile hydrothermal treatment associated with the calcination process exhibit the good spherical morphology and unique porous structure.For the Li-based half-cell test,porous carbon spheres electrode not only exhibits larger reversible capacities and better compatibility as compared to the widely-used graphite,but also provides stable delithiation plateaus under different current density.Additionally,the delithiation ratio below 1 V almost accounts for a constant value(around 70%)with the increase of current density,evidencing that Li intercalation storage is the dominant model and Li insertion/extraction processes are propitious.The lithium ion hybrid capacitor configured with S-doped mesoporous graphene and porous carbon spheres as cathode and anode,delivers satisfied energy and power densities(up to 177 Wh kg^(−1) and 12,303 W kg^(−1),respectively)as well as long-term cyclability,which is superior to the corresponding S-doped mesoporous graphene//graphite and activated carbon//porous carbon spheres.In addition,the developed synthesis strategy is in favor of the realization of the scalable production of porous carbon spheres.展开更多
基金financially supported by the National Natural Science Foundation of China (No.51271036)
文摘AlNbO_4,as lithium-ion batteries（LIBs） anode,has a high theoretical capacity of 291.5 m Ah g^-1.Here,AlNbO_4 anode materials were synthesized through a simple solid-state method.The structure,morphology and electrochemical performances of AlNbO4 anode were systematically investigated.The results show that AlNbO4 is monoclinic with C2/m space group.The scanning electron microscopy（SEM） and transmission electron microscopy（TEM） characterizations reveal the AlNbO_4 particles with the size of 100 nm^–2 lm.As a lithium-ion batteries anode,AlNbO4 delivers a high reversible capacity and good rate capability.The discharge capacity is as high as 151.0 m Ah g^-1 after 50 charge and discharge cycles at 0.1 C corresponding to capacity retention of 90.7 %.When the current density increases to 5.0C,AlNbO4 anode displays reversible discharge capacity of 73.6 m Ah g^-1 at the50 th cycle.
基金supported by the National Natural Science Foundation of China(52064035)the Key Research and Development Program of Gansu Province(22YF7GA157)+1 种基金the Natural Science Foundation of Zhejiang Province(LGG22E020003)the Doctoral Research Foundation of Lanzhou University of Technology in 2023(062316).
文摘Sodium ion batteries(SIBs)are expected to replace lithium ion batteries(LIBs)as the next promising rechargeable batteries owing to the abundant distribution and low cost of sodium resources.Exploring a suitable anode material is essential to realize its commercialization.Tin disulfide(SnS_(2))is a promising anode on account of its high theoretical capacity and large interlayer spacing.However,low intrinsic conductivity,shuttle effect of polysulfide,and large volume expansion have greatly hindered its application in SIBs.In this review,we first introduce the basic properties,storage mechanisms,and drawbacks of SnS_(2).Focusing on these drawbacks,we systematically elaborate four structural design strategies,including compositing with carbon materials,nanostructure design,heterostructure design,and heteroatom doping.Finally,we summarize these four structural design methods and provide insight into the future development of the SnS_(2) anode.We hope that this review will give some guidance and inspiration for SnS_(2) anode design to achieve its commercialization sooner.
文摘The authors regret that the author Cheng Zeng’s name was spelled incorrectly in the original article.The correct spelling is as presented here.Furthermore,the authors regret that the list of author contributions in the original manuscript was incomplete.The complete list of author contributions is shown below.
基金the financial support provided by the National Centre for Photovoltaic Research and Education(NCPRE-II)(Grant No.31/09/2015-16/PVSE-R&D)funded by the Ministry of New Renewable Energy,Govt.of India and IRCC-IIT Bombay.The authors are also thankful to the members of SAIF,IIT Bombay and all labora7tory colleagues for their assistance and support throughout the experiments and discussion.
文摘The renewable energy revolution and its practical applications demand the need for large solar storage options.Lithium-ion batteries may remain top in terms of their utilization and performance,however their cost-per-kWh impacts their usage,and researchers prefer to stick to sodium-ion chemistry as a large storage option.
基金supported by National Natural Science Foundation of China(no.12205252 and 52172244)Zhejiang Provincial“Jianbing”and“Lingyan”R&D Programs(no.2024C01262)+3 种基金the Quzhou Science and Technology Plan Project(no.2022K39)Science and Technology Project of Quzhou Research Institute,Zhejiang University(no.IZQ2021KJ2032,IZQ2022KJ3014,and IZQ2022KJ3002)Leading Scientific and Technological Innovation Talents of Zhejiang Province’s“Special Support Plan for High-Level Talents”(no.2022R52011)the Zhejiang Provincial“Jianbing”and“Lingyan”R&D Programs(no.2024C01050).
文摘High-capacity silicon(Si)-based anodes have been recognized as particularly promising candidates for high-energy-density lithium-ion batteries(LIBs).Rational design and tailoring of an artificial interface for Si anodes can effectively mitigate volume expansion,suppress detrimental side reactions,and enhance lithium-ion(Li+)diffusion kinetics—three critical factors widely acknowledged as fundamental prerequisites for enabling long-term cycling stability and fast-charging capabilities.Therefore,we introduced an organic/inorganic composite interface design strategy combining high elasticity and ion-conductive properties.Lithium metasilicate(LMS)not only functions as an effective protective layer and Li+conductor but also inhibits lithium hexafluorophosphate(LiPF_(6))hydrolysis to suppress the generation of corrosive hydrofluoric acid(HF).When integrated with carboxyl-rich polyacrylic acid(PAA),the nanocomposite coating layer demonstrates high elasticity to accommodate volume expansion,establishes continuous Li+diffusion pathways,and promotes the formation of a robust lithium fluoride(LiF)-rich artificial solid-electrolyte interphase(SEI).Consequently,the as-developed Si@PL-10 electrode demonstrates significantly enhanced cycling performance(2297 mAh g^(−1)after 200 cycles at 1 A g^(−1))and high-rate capability(1854 mAh g^(−1)at 6 A g^(−1)).This work provides valuable insights for designing scalable multifunctional coatings for high-performance Si anodes.
基金supported by the National Natural Science Fund of China(no.21671181,21521001,and 21701163)the Anhui Provincial Natural Science Foundation(1608085MB22)+2 种基金the National Postdoctoral Program for Innovative Talents(no.BX201600140)the China Postdoctoral Science Foundation(no.2016M600484)the Fundamental Research Funds for the Central Universities(WK2060190078).
文摘The low theoretical capacity(372 mA h g^(-1))of the conventional commercial graphite anode limits its widespread applications,so it is urgent to prepare novel high-capacity anodes.Here,as a modification of graphite,a Si/graphite/Cu–carbon nanotube composite is prepared using a scalable and low-cost method including ball-milling of commercial micro-sized Si,Cu and graphite,followed by in situ growth of carbon nanotubes catalyzed by Cu.The Si,Cu and graphite are homogeneously mixed in the composite.Meanwhile,in situ synthesized carbon nanotubes are able to further cross-link all components tightly and construct a three-dimensional conductive network.As an anode for lithium-ion batteries,the as-prepared composite presents a reversible capacity of 738.3 mA h g^(-1)with a capacity retention of 87.6%after 100 cycles at 0.2 A g^(-1)and a reversible capacity of 538 mA h g^(-1)after 200 cycles at 0.5 A g^(-1),which is much better than those of Si/graphite and Si/graphite/Cu composites.The enhanced electrochemical performance of the Si/graphite/Cu–carbon nanotube composite is mainly attributed to the graphite,Cu and carbon nanotube contents which are synergistically beneficial for improving the structural integrity and electrical conductivity of the composite.
基金supported by the National Key R&D Program of China(2021YFB3800300)the National Natural Science Foundation of China(52072138 and U22A20140)the Shenzhen Science and Technology Program(JCYJ20220530160816038 and JCYJ20220818100418040).
文摘Li_(3)VO_(4)(LVO)has been widely considered as a promising new insertion-type anode material for lithiumion batteries.However,the surface instability of LVO nanoparticles leads to a sharp decline in the first coulombic efficiency and cycle capacity.In this work,an ionic interface nanolayer of 5-10 nm is effectively coated on the LVO nanoparticle surface by an in situ liquid chemical reaction.
基金supported by Nano Special Plan from Shanghai Municipal Science and Technology Plan of Commission(No.l052nm06900)
文摘Nb2O5-carbon nanocomposite is synthesized through a facile one-step hydrothermal reaction from sucrose as the carbon source, and stuclled as an anode material for high-performance lithium ion battery. The structural characterizations reveal that the nanocomposite possesses a core-shell structure with a thin layer of carbon shell homogeneously coated on the Nb2O5 nanocrystals. Such a unique structure enables the composite electrode with a long cycle life by preventing the Nb2O5 from volume change and pulverization during the charge-discharge process. In addition, the carbon shell efficiently improves the rate capability. Even at a current density of 500 mA.g-1, the composite electrode still exhibits a specific capacity of ~100 mAh.g-1. These results suggest the possibility to utilize the Nb2O5-carbon core-shell composite as a high performance anode material in the practical application of lithium ion battery.
基金supported by the National Natural Science Foundation of China(No.52022109,51834008 and21706283)Beijing Municipal Natural Science Foundation(No.2202047)+1 种基金Beijing Talents Foundation(No.2017000020124G010)Science Foundation of China University of Petroleum,Beijing(No.2462020YXZZ016,2462018YJRC041 and2462017YJRC003).
文摘Porous carbon spheres derived from the facile hydrothermal treatment associated with the calcination process exhibit the good spherical morphology and unique porous structure.For the Li-based half-cell test,porous carbon spheres electrode not only exhibits larger reversible capacities and better compatibility as compared to the widely-used graphite,but also provides stable delithiation plateaus under different current density.Additionally,the delithiation ratio below 1 V almost accounts for a constant value(around 70%)with the increase of current density,evidencing that Li intercalation storage is the dominant model and Li insertion/extraction processes are propitious.The lithium ion hybrid capacitor configured with S-doped mesoporous graphene and porous carbon spheres as cathode and anode,delivers satisfied energy and power densities(up to 177 Wh kg^(−1) and 12,303 W kg^(−1),respectively)as well as long-term cyclability,which is superior to the corresponding S-doped mesoporous graphene//graphite and activated carbon//porous carbon spheres.In addition,the developed synthesis strategy is in favor of the realization of the scalable production of porous carbon spheres.
