(中南工业大学冶金物理化学与化学新材料研究所，长沙410083)
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20 mV，以1C倍率电流充电时的最大电池内压减少0.4 MPa, 并显著提高电池循环性能。以1C倍率快速充放测试循环400次时，其容量保持率在90%以上，放电中值电压为1.216V。
关键字: MH/Ni电池；负极；过渡金属氧化物
（Institute of Physicochemistry of Metallurgy and New Chemical Materials,
Central South University of Technology, Changsha 410083, P.R.China）
Abstract: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.
Key words: MH/Ni battery; negative electrode; transition metal oxide
