摘要
利用LAND充放电测试仪考察了1种新型的镍氢电池正极材料α-Ni(OH)2充电过程中析出O2量的变化,对α-Ni(OH)2的充电效率进行了研究。结果表明Al代α-Ni(OH)2的充电效率高于β-Ni(OH)2。随着合成温度的升高,α-Ni(OH)2的充电效率增加到一定值后趋于稳定。环境温度升高,充电效率增加。电流密度增加,充电效率几乎没有变化,说明α-Ni(OH)2电极的大电流性能很好。
The charge efficiency of Al-doped α-Ni(OH)2 has been studied. The results show that the charge efficiency of Al-substituted α-Ni (OH)2 is higher than that of β-Ni(OH)2, and rises first and then keeps a level with the increase of preparation temperature. When the ambient temperature rises, the charge efficiency increases. And it changes slightly with the increase of current density, which shows that high current density property of α-Ni (OH)2 is good.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2003年第11期919-922,共4页
Rare Metal Materials and Engineering
