Amorphous V2O5 as high performance cathode for aqueous zinc ion battery

被引：32
|
作者：
Wu, Shougang [1 ,2 ]
Ding, Youcai [1 ,2 ]
Hu, Linhua [1 ]
Zhang, Xianxi [3 ]
Huang, Yang [1 ]
Chen, Shuanghong [1 ]
机构：
[1] Chinese Acad Sci, Inst Appl Technol, Hefei Inst Phys Sci, Key Lab Photovolta & Energy Conservat Mat, 2221 Changjiangxi Rd, Hefei 230088, Anhui, Peoples R China
[2] Univ Sci & Technol China, 96 Jinzhai Rd, Hefei 230026, Peoples R China
[3] Liaocheng Univ, Shandong Prov Key Lab, Sch Chem & Chem Engn, Collaborat Innovat Ctr Chem Energy Storage & Nove, Liaocheng 252000, Shandong, Peoples R China
来源：
MATERIALS LETTERS | 2020年 / 277卷
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
Aqueous zinc ion battery; Amorphous materials; V2O5; Energy storage and conversion; High performance; Practical application; VANADIUM-OXIDE; GRAPHENE;
D O I：
10.1016/j.matlet.2020.128268
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An amorphous V2O5 (a-V2O5) cathode for aqueous zinc ion battery was prepared via the solution method followed by low temperature annealing. The cathode shows better performance than crystal V2O5 (c-V2O5), including a high specific discharge capacity (348 mAh g(-1) at 0.1 A g(-1)) and great long term cycle stability of 2200 cycles at 5 A g(-1). The excellent performances are attributed to the high structural disorder which provides a great deal of insertion sites for Zn2+. In addition, the a-V2O5 can be massively produced based on the simple solution method which shows great potential in practical application. (C) 2020 Elsevier B.V. All rights reserved.
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页数：4
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