热效应问题是MH-Ni电池在电动车应用中的主要难题之一。比较了4种不同散热结构MH-Ni电池组的性能。结果表明,对于方形金属壳体的MH-Ni电池组,采用单体电池不套热缩套管、电池之间用带有散热通道的绝缘栅隔开,电池组具有较好的散热性能和温度均匀性。

Thermal effect is one of the most important issues in the use of Ni-MH battery for EVs or HEVs. In this paper,four different heat-dissipating structures of battery modules were compared. The results showed that, for rectangle Ni-MH battery with stainless steal shell, the battery module has the better heat-dissipating performance and temperature uniformity, in which the cell had no heat-shrinkable tube but the insulative grid with heat dissipating structure alley was set between cells.