Graphene Oxide Wrapped Amorphous Copper Vanadium Oxide with Enhanced Capacitive Behavior for High‐Rate and Long‐Life Lithium‐Ion Battery Anodes

Advanced Science

Kangning Zhao¹  Fengning Liu¹  Chaojiang Niu¹  Wangwang Xu²  Yifan Dong¹  Lei Zhang¹  Shaomei Xie¹  Mengyu Yan¹  Qiulong Wei¹  Dongyuan Zhao¹ 

[1] State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, China;Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, USA

关键词: amorphous;    anode;    copper extraction;    copper vanadium oxide;    lithium‐ion battery;   

DOI  :  10.1002/advs.201500154

来源: Wiley

【 摘 要 】

Abstract

Graphene oxide-wrapped amorphous copper vanadium oxide is fabricated through a template-engaged redox reaction followed by vacuum dehydration. This material exhibits high reversible capacity, excellent rate capability, and out standing high-rate cyclability. The outstanding performance is attributed to the fast capacitive charge storage and the in situ formed copper with enhanced electrical conductivity.

【 授权许可】

CC BY   
© 2015 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.