| Study on hydrogen diffusion behavior in MlNi_(3.75) Co_(0.65) Mn_(0.4) Al_(0.2) alloy electrode by chronoamperometry |
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| 作者姓名： | 原鲜霞 徐乃欣 |
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| 作者单位： | Shanghai Institute of Metallurgy，Chinese Academy of Sciences，Shanghai 200050，P.R.China |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＮｉｃｋｅｌ ｍｅｔａｌｈｙｄｒｉｄｅ (Ｎｉ/ＭＨ )ｂａｔｔｅｒｉｅｓｈａｖｅｂｅｅｎｄｅｖｅｌｏｐｅｄｔｏｍｅｅｔｔｈｅｄｅｍａｎｄｓｆｏｒａｐｏｗｅｒｓｏｕｒｃｅｗｉｔｈｈｉｇｈｅｎｅｒｇｙｄｅｎｓｉｔｙ ,ｅｘｃｅｌｌｅｎｔｈｉｇｈ ｒａｔｅｃａｐａｂｉｌｉｔｙ ,ｌｏｎｇｃｙｃｌｅｌｉｆｅａｎｄ ｇｏｏｄｅｎｖｉｒｏｎｍｅｎｔａｌｃｏｍｐａｔｉｂｉｌｉｔｙ1,2 ] ,ａｎｄｅｘｔｅｎｓｉｖｅｒｅｓｅａｒｃｈｅｓｈａｖｅｂｅｅｎｄｏｎｅｏｎｔｈｅｍ3～ 5] .Ｔｈｅｐｅｒｆｏｒ…
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Study on hydrogen diffusion behavior in MlNi_(3.75) Co_(0.65) Mn_(0.4) Al_(0.2) alloy electrode by chronoamperometry |
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| YUAN Xian xia,XU Nai xin.Study on hydrogen diffusion behavior in MlNi_(3.75) Co_(0.65) Mn_(0.4) Al_(0.2) alloy electrode by chronoamperometry[J].Transactions of Nonferrous Metals Society of China,2001(5). |
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| Authors: | YUAN Xian xia XU Nai xin |
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| Abstract: | Hydrogen diffusion coefficients in MlNi 3.75 Co 0.65 Mn 0.4 Al 0.2 alloy electrode as a function of state of charge (SOC) or temperature were determined by chronoamperometry. It is found that hydrogen diffusion coefficient decreases with the increase of SOC or the decrease of temperature. The activation energy for hydrogen diffusion in the alloy electrode with 50%SOC is evaluated to be 19.9?kJ/mol. |
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| Keywords: | hydrogen storage alloy electrode hydrogen diffusion coefficient chronoamperometry |
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