V2O5 Nanospheres with Mixed Vanadium Valences as High Electrochemically Active Aqueous Zinc-Ion Battery Cathode

Nano-Micro Letters

Zixian Chen¹  Fei Liu¹  Guozhao Fang¹  Boya Tang¹  Yangsheng Cai¹  Ziqing Wang¹  Jiang Zhou²  Shuquan Liang² 

[1] School of Materials Science and Engineering, Central South University, 410083, Changsha, Hunan, People’s Republic of China;School of Materials Science and Engineering, Central South University, 410083, Changsha, Hunan, People’s Republic of China;Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province, Central South University, 410083, Changsha, Hunan, People’s Republic of China;

关键词: VO;    Mixed valences;    Hollow sphere;    Long-cycle-life;    Aqueous zinc-ion battery;   

DOI  :  10.1007/s40820-019-0256-2

来源: Springer

【 摘 要 】

tsHollow V4+-V2O5 nanospheres are prepared by a novel and simple method using VOOH as the precursor.V4+-V2O5 with mixed vanadium valences is firstly constructed as an electrochemically active cathode for aqueous zinc-ion batteries.The V4+-V2O5 cathode exhibits a prominent cycling performance up to 1000 cycles and an excellent rate capability.

【 授权许可】

CC BY