Development of high-capacity nickel-metal hydride batteries using superlattice hydrogen-absorbing alloys

详细信息    查看全文

• 作者：Shigekazu Yasuoka ; Yoshifumi Magari ; Tetsuyuki Murata ; Tadayoshi Tanaka ; Jun Ishida ; Hiroshi Nakamura ; Toshiyuki Nohma ; Masaru Kihara ; Yoshitaka Baba and Hirohito Teraoka
• 关键词：Nickel metal hydride battery ; Hydrogen-absorbing alloy ; Superlattice
• 刊名：Journal of Power Sources
• 出版年：2006
• 出版时间：1 June 2006
• 年：2006
• 卷：156
• 期：2
• 页码：662-666
• 全文大小：348 K

文摘

New R–Mg–Ni (R: rare earths) superlattice alloys with higher-capacity and higher-durability than the conventional Mm–Ni alloys with CaCu₅ structure have been developed. The oxidation resistibility of the superlattice alloys has been improved by optimizing the alloy composition by such as substituting aluminum for nickel and optimizing the magnesium content in order to prolong the battery life. High-capacity nickel-metal hydride batteries for the retail market, the Ni-MH2500/900 series (AA size type 2500 mAh, AAA size type 900 mAh), have been developed and commercialized by using an improved superlattice alloy for negative electrode material.