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中文摘要：
气相色谱法研究的结果表明：氢气是MH/Ni电池充电过程中产生气体的主要成分.MH电极中氢原子的缓慢扩散限制了电池的快速充电.通过恒电位极化法,测定了MH电极在不同荷电态（SOC）下的氢扩散系数.结果表明：在同一温度下,氢扩散系数随着SOC的增大,呈指数关系衰减.根据SOC来调节电流的充电方法,能降低MH/Ni电池快速充电时的内压.
英文摘要：
Gas chromatography method was used to analyze the component of gases that were produced in the Ni/MH battery charging process. Results showed that hydrogen was the main gas. Fast charging was limited by the slowness of hydrogen atom diffusion in metal hydride electrode. Hydrogen diffusion coefficient of metal hydride electrode at different state of charge （SOC） was measured by the method of potentiostatic pohrization. Results showed that hydrogen diffusion coefficient exponential decreased with the increase of SOC at the same temperature. The inner pressure of Ni/MH battery during fast charging could be decreased by using the charging method which regulated the current for SOC.
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