The Co-B Amorphous Alloy: A High Capacity Anode Material for an Alkaline Rechargeable Battery

被引：5
|
作者：
Qiu, Shujun [1 ]
Huang, Jianling [1 ]
Chu, Hailiang [1 ]
Zou, Yongjin [1 ]
Xiang, Cuili [1 ]
Yan, Erhu [1 ]
Xu, Fen [1 ]
Sun, Lixian [1 ]
机构：
[1] Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guangxi Key Lab Informat Mat, Guangxi Collaborat Innovat Ctr Struct & Property, Guilin 541004, Peoples R China
来源：
METALS | 2016年 / 6卷 / 11期
基金：
中国国家自然科学基金;
关键词：
amorphous materials; energy storage and conversion; rechargeable battery; anode; HYDROGEN STORAGE PROPERTIES; ELECTROCHEMICAL PERFORMANCE; PARTICLES; ELECTRODE; ENHANCEMENT; TEMPERATURE; HYDROLYSIS; BEHAVIORS;
D O I：
10.3390/met6110269
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Co-B amorphous alloys were prepared via a chemical reduction method by sodium borohydride, using three different cobalt salts (CoCl2 center dot 6H(2)O, CoSO4 center dot 7H(2)O, and Co(NO3)(2)center dot 6H(2)O) as sources of cobalt. As anode materials in alkaline rechargeable batteries, the Co-B alloy prepared from CoCl2 center dot 6H(2)O has a maximum specific discharge capacity of 844.6 mAh/g, and 306.4 mAh/g is retained even after 100 cycles at a discharge current of 100 mA/g. When Co(NO3)(2)center dot 6H(2)O is used as a raw material, the formation of Co-3(BO3)(2) worsens the electrochemical properties of the sample, i.e., a maximum capacity of only 367.0 mAh/g.
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页数：8
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