摘要
用过渡金属氧化物作为MH/Ni电池的负极添加剂 ,研究了它对MH/Ni电池容量、放电电压、电池内压和循环性能的影响。加入 2 %的新型负极添加剂 ,可以在保证电池容量不受影响的前提下 ,使MH/Ni电池的放电中值电压升高约 2 0mV ,以 1C倍率电流充电时的最大电池内压减少 0 .4MPa,并显著提高电池循环性能。以 1C倍率快速充放测试循环 40 0次时 ,其容量保持率在 90 %以上 ,放电中值电压为 1 .2 1
The mixture of several kinds of transition metal oxide has been used as an additive of metal hydride electrode in MH/Ni battery. The effects of the additive on the properties of MH/Ni battery were studied. Compared with the former MH/Ni batteries, the new ones with two percent novel additive in metal hydride electrode have excellent performances such as higher discharge voltage(by 20mV, approx.), lower charge inner pressure(by 0.4MPa, approx.), and longer cycle life when charged/discharged at 1C rate.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2000年第2期258-261,共4页
The Chinese Journal of Nonferrous Metals