摘要
本文主要研究了-40℃超低温镍氢电池及低温合金。通过对低温合金和常规合金的成分、粒度、比表面积及P-C-T曲线分析,证明低温合金可以提高镍氢电池低温性能的可行性。通过对两种合金粉的电化学性能测试以及制作成镍氢电池进行性能测试,镍氢电池的比功率和大电流放电性能大幅度提高,在-40℃超低温环境下放电率可以达到80%以上,实现了镍氢电池的超低温放电性能,适合在北方寒冷地区使用,为镍氢电池打开北方寒冷地区市场提供了技术保障。
This article mainly studied on -40 ℃ uhra-low temperature nickel metal hydride batteries and alloy at low tem- perature. Based on low temperature alloy and conventional alloy composition, particle size, specific surface area and P-C-T curve analysis, it is proved that low alloy can improve the feasibility of Ni-MH battery performance at low temperature. Through electrochemical performance test of two kinds of alloy powders and the Ni-MH battery performance test, specific power and high current discharge performance of the nickel metal hydride batteries were greatly improved, and discharge rate of the battery in - 40℃ ultra-low temperature environment can reach over 80%. It has realized the ultra-low temperature discharge perform- ance for the battery, and it is suitable for using in northern cold regions. It provides the technical support for opening the north cold area nickel metal hydride batteries＇ market .
出处
《稀土》
EI
CAS
CSCD
北大核心
2017年第5期141-146,共6页
Chinese Rare Earths
基金
包头市科技局项目(2014Y1011)
关键词
镍氢电池
贮氢合金
低温
Ni-MH battery
hydrogen storage alloy
the low temperature
