摘要
采用充放电测试、高倍率放电等方法,系统分析了Mg对合金在循环过程中的电化学性能影响规律,结果表明La1-xMgxNi2.5Co0.5(x=0～0.4)合金在初始阶段的高倍率放电性能随着Mg含量的增加先增大后减小,La1-xMgxNi2.5Co0.5(x=0～0.4)合金经90次循环后的放电容量保持率先从x=0时的28.0%增加到x=0.2时的59.1%,然后下降到x=0.4时的45.7%。
The electrochemical properties of La1-xMgxNi2.5Co0.5（x=0~0.4） alloys were investigated using charge and discharge testing and HRD testing methods.The results showed that the degradation extent of HRDs was different during cycles,which was ascribed to the corrosion and surface resistance of the alloys with the increase of cycles.The cycle stability of the alloy electrodes first increased from 28.0%（x=0） to 59.1%（x=0.2）,then decreased to 45.7%（x=0.4） after 90 charge/discharge cycles.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2012年第3期380-384,共5页
Journal of the Chinese Society of Rare Earths
基金
稀土资源利用国家重点实验室开放课题基金(RERU2011010)资助
