Electrode Resistance of Metal Hydride in Alkaline Aqueous Solution
Electrode Resistance of Metal Hydride in Alkaline Aqueous Solution
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DOI：
10.1143/jjap.23.1619
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发表时间：
1984-12
影响因子：
1.5
通讯作者：
H. Yayama;K. Kuroki;K. Hirakawa;A. Tomokiyo
中科院分区：
文献类型：
--
作者：
H. Yayama;K. Kuroki;K. Hirakawa;A. Tomokiyo
研究了金属氢化物在恒流电解过程中的电极电阻。发现氢在电极中的扩散是反应的速率决定步骤，是电极电阻的主要原因。电极的活性，与反应速率相对应，由有效表面积和氢在电极主体中的扩散系数决定。估计了有关电极动力学的一些参数。TiMn1.5是一种极好的二次电池电极材料，具有较高的电流和能量密度。
The electrode resistance of metal hydride in constant-current electrolysis is investigated. It is found that the diffusion of hydrogen in the electrode is the rate-determining step in the reaction and is the dominant cause of the electrode resistance. The activity of the electrode, corresponding to the reaction rate, is determined by the effective surface area and the diffusion coefficient of hydrogen in the bulk of the electrode. Some parameters concerning the electrode kinetics are estimated. TiMn1.5 is an excellent electrode material for a secondary battery with high current and energy densities.