典型文献
ZnMn3O7:A New Layered Cathode Material for Fast-Charging Zinc-Ion Batteries
文献摘要:
Low-cost and high-energy-density manganese-based compounds are promising cathode materials for rechargeable aqueous zinc-ion batteries(AZIBs),however,they often experience cycling instability issues and inferior rate capability.Herein,we report a new layered manganese-based cathode material,ZnMn3O7(ZMO),which possesses a large interlayer spacing of 4.8 ? and allows the interca-lation of~1.23 Zn-ions per formula unit(corresponding to a capacity of~170 mAh/g).Importantly,ZMO exhibits good cycling stability(72.9%capacity retention over 400 cycles),ultrafast-charging capability(73%state of charge in 1.5 min),and an ultra-high power density(3510 W/kg at 88 Wh/kg).Through kinetic characterization,the favorable diffusion of ions and the dominant capacitor contribution are found to be conducive to the achievement of superior fast charging capability.Furthermore,the charge storage mechanism is revealed by ex-situ XRD and ex-situ XPS.This work may shed light on the design of high-performance electrode materials for AZIBs.
文献关键词:
中图分类号:
作者姓名:
Ruitao Sun;Qin Liu;Wenzhuo Deng
作者机构:
CAS Key Laboratory of Design and Assembly of Functional Nanostructures,and Fujian Key Laboratory of Nanomaterials;State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China;University of Chinese Academy of Sciences,Beijing 100039,China
文献出处:
引用格式:
[1]Ruitao Sun;Qin Liu;Wenzhuo Deng-.ZnMn3O7:A New Layered Cathode Material for Fast-Charging Zinc-Ion Batteries)[J].结构化学,2022(05):85-92
A类:
ZnMn3O7,ZMO
B类:
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AB值:
0.654758
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