电动车用MH-Ni蓄电池充放电性能研究  

Charge-discharge characteristics of Ni-MH battery used in EV

作　　者：范美强[1] 廖维林 吴伯荣[1] 陈晖[1] 简旭宇[1] 

机构地区：[1]北京有色金属研究院能源材料与技术研究中心,北京100088

出　　处：《电源技术》2005年第4期195-198,共4页Chinese Journal of Power Sources

基　　金：国家"863"计划资助项目(2003 A A 501131)

摘　　要：检测比较了80Ah方型MH-Ni蓄电池不同倍率的充放电性能,并给出了不同温度下1C充放电电压和温度特性曲线。分析得出:充电过程温度升高较快,须对温度进行检测和控制;以前将作为充电终点判据的温升速率确定为1.5～2.0℃·min-1,不适合80Ah方型电池,须重新确定充电截止温升速率;不同温度下,MH-Ni蓄电池1C充放电性能较好,显示MH-Ni蓄电池具有良好的大电流充放电能力,可在混合动力车上应用和推广。The charge-discharge performance of 80 Ah prismatic Ni-MH battery at different rates were carried out, and 1 C charge-discharge curves of voltage and temperature under different temperatures were given. The results show that it is necessary to inspect and control the cell because its internal temperature increases rapidly in the process of charge. Rate of temperature increase 1.5～2 ℃·min-1 as a basis for charge cutoff is not fit for 80 Ah prismatic Ni-MH battery, so it needs to redecide the rate of temperature increase . The 1 C charge-discharge performance of Ni-MH battery is much better at different temperatures,which makes the battery has a favorable high current charge-discharge ability and has a good future in HEV application.

关 键 词：MH-NI蓄电池 充放电性能 高低温性能 

分 类 号：TM912.2[电气工程—电力电子与电力传动]