Aqueous rechargeable batteries are safe and environmentally friendly and can be made at a low cost;as such,they are attracting attention in the field of energy storage.However,the temperature sensitivity of aqueous ba...Aqueous rechargeable batteries are safe and environmentally friendly and can be made at a low cost;as such,they are attracting attention in the field of energy storage.However,the temperature sensitivity of aqueous batteries hinders their practical application.The solvent water freezes at low temperatures,and there is a reduction in ionic conductivity,whereas it evaporates rapidly at high temperatures,which causes increased side reactions.This review discusses recent progress in improving the performance of aqueous batteries,mainly with respect to electrolyte engineering and the associated strategies employed to achieve such improvements over a wide temperature domain.The review focuses on fi ve electrolyte engineer-ing(aqueous high-concentration electrolytes,organic electrolytes,quasi-solid/solid electrolytes,hybrid electrolytes,and eutectic electrolytes)and investigates the mechanisms involved in reducing the solidifi cation point and boiling point of the electrolyte and enhancing the extreme-temperature electrochemical performance.Finally,the prospect of further improving the wide temperature range performance of aqueous rechargeable batteries is presented.展开更多
Aqueous zinc-ion batteries(ZIBs)have attracted much interest to realize safe rechargeable batteries with high safety and high energy density.However,it is still challenging to address dendrite growth and parasitic rea...Aqueous zinc-ion batteries(ZIBs)have attracted much interest to realize safe rechargeable batteries with high safety and high energy density.However,it is still challenging to address dendrite growth and parasitic reactions in zinc anodes.We propose herein the design concept of hydrogen bond-induced elastic polyzwitterion electrolytes with zincophilic groups for achieving robust ZIBs.Mussel-inspired autopolymerization has been developed to construct the polyzwitterion electrolytes at room temperature by inducing electron density delocalization atα-position of C=C bond in zwitterion monomer by Zn^(2+).Specifically,the zwitterionic functional groups construct ion transport channels,and the unique–NH–and SO_(3)^(-)groups co-compete with H_(2)O for coordination with Zn^(2+)and promote the desolvation of hydrated Zn^(2+),thus achieving a high room temperature ionic conductivity(6.7 mS cm^(-1))and an increased Zn^(2+)migration number(0.65)for the polyzwitterion electrolytes.In addition,various interactions such as hydrogen bonding and electrostatic interactions between electrolyte ions and zwitterionic groups impart high stretchability and strength to the polyzwitterion electrolytes,which,combined with SO_(3)^(-)philic(002)crystallographic properties,effectively inhibit the growth of zinc dendrites.As a result,rigid/wearable solid-state ZIBs exhibit excellent cycling and C-rate performances.We believe that the strategy of constructing polyzwitterionic electrolytes with zincophilic groups and ion transport channels opens up a new direction in polymer electrolyte engineering towards safe and high energy batteries.展开更多
基金supported by the National Key Research and Development Program of China(2019YFC1904500)National Natural Science Foundation of China(Nos.21801251,51502036,and 21875037)+2 种基金Young Top Talent of Fujian Young Eagle Program of Fujian Province,Educational Commis-sion of Fujian Province(2022G02022)Natural Science Foundation of Fuzhou City(2022-Y-004)Natural Science Foundation of Fujian Province(2023J02013).
文摘Aqueous rechargeable batteries are safe and environmentally friendly and can be made at a low cost;as such,they are attracting attention in the field of energy storage.However,the temperature sensitivity of aqueous batteries hinders their practical application.The solvent water freezes at low temperatures,and there is a reduction in ionic conductivity,whereas it evaporates rapidly at high temperatures,which causes increased side reactions.This review discusses recent progress in improving the performance of aqueous batteries,mainly with respect to electrolyte engineering and the associated strategies employed to achieve such improvements over a wide temperature domain.The review focuses on fi ve electrolyte engineer-ing(aqueous high-concentration electrolytes,organic electrolytes,quasi-solid/solid electrolytes,hybrid electrolytes,and eutectic electrolytes)and investigates the mechanisms involved in reducing the solidifi cation point and boiling point of the electrolyte and enhancing the extreme-temperature electrochemical performance.Finally,the prospect of further improving the wide temperature range performance of aqueous rechargeable batteries is presented.
基金supported by the National Key Research and Development Program of China(2023YFB3608904)the National Natural Science Foundation of China(21835003,21674050,62274092)+8 种基金the Natural Science Foundation of Jiangsu Province(BK20210601,BE2019120)the Foundation of Key Laboratory of Flexible Electronics of Zhejiang Province(2023FE002)the Program for Jiangsu Specially-Appointed Professor(RK030STP15001)the Leading Talent of Technological Innovation of National Ten-Thousands Talents Program of Chinathe NUPT“1311 Project”and Scientific Foundation(NY219159,NY219021)the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD,YX030003)the China Postdoctoral Science Foundation(2023M741624)the Project of State Key Laboratory of Organic Electronics and Information Displays(GZR2023010016)the Natural Science Foundation of Nanjing University of Posts and Telecommunications(NY223079)。
文摘Aqueous zinc-ion batteries(ZIBs)have attracted much interest to realize safe rechargeable batteries with high safety and high energy density.However,it is still challenging to address dendrite growth and parasitic reactions in zinc anodes.We propose herein the design concept of hydrogen bond-induced elastic polyzwitterion electrolytes with zincophilic groups for achieving robust ZIBs.Mussel-inspired autopolymerization has been developed to construct the polyzwitterion electrolytes at room temperature by inducing electron density delocalization atα-position of C=C bond in zwitterion monomer by Zn^(2+).Specifically,the zwitterionic functional groups construct ion transport channels,and the unique–NH–and SO_(3)^(-)groups co-compete with H_(2)O for coordination with Zn^(2+)and promote the desolvation of hydrated Zn^(2+),thus achieving a high room temperature ionic conductivity(6.7 mS cm^(-1))and an increased Zn^(2+)migration number(0.65)for the polyzwitterion electrolytes.In addition,various interactions such as hydrogen bonding and electrostatic interactions between electrolyte ions and zwitterionic groups impart high stretchability and strength to the polyzwitterion electrolytes,which,combined with SO_(3)^(-)philic(002)crystallographic properties,effectively inhibit the growth of zinc dendrites.As a result,rigid/wearable solid-state ZIBs exhibit excellent cycling and C-rate performances.We believe that the strategy of constructing polyzwitterionic electrolytes with zincophilic groups and ion transport channels opens up a new direction in polymer electrolyte engineering towards safe and high energy batteries.
