Influence of electroless nickel plating of hydrogen-absorbing alloys on cycle characteristics of nickel-metal hydride batteries |
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| Authors: | Katsuhiko Shinyama Yoshifumi Magari Tadayoshi Tanaka Hiroshi Nakamura Toshiyuki Nohma Ikuo Yonezu |
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| Affiliation: | (1) Mobile Energy Company, Sanyo Electric Co., Ltd., 7-3-2 Ibukidai-higashimachi, Nishi-ku, Kobe, Hyogo 651-2242, Japan |
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| Abstract: | The effects of electroless nickel plating of a hydrogen-absorbing alloy on the cycle characteristics of a nickel-metal hydride battery were investigated. The cycle life was improved by employing an electroless nickel-plated hydrogen-absorbing alloy for the negative electrode, which retained the same high-rate level and low-temperature characteristics compared to a cell using a non-plated hydrogen-absorbing alloy. The electroless nickel-plated hydrogen-absorbing alloy provided better electrochemical characteristics when its surface was partly and tightly covered by nickel particles under optimal electroless plating conditions. |
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| Keywords: | Nickel-metal hydride battery electroless nickel plating hydrogen-absorbing alloy |
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