Arent Fox Kintner Plotkin & Kahn, PLLC
Hydrogen absorbing alloy electrode and process for fabricating same
 A hydrogen absorbing alloy electrode characterized in that the electrode consists mainly of a mixture of a first hydrogen absorbing alloy powder A formed on surfaces of particles thereof with a surface layer 22 containing metallic copper or a copper oxide and a second hydrogen absorbing alloy powder B formed on surfaces of particles thereof with a surface layer 24 containing metallic cobalt or a cobalt oxide. The copper-coated hydrogen absorbing alloy powder A affords improved electric conductivity, and the cobalt-coated hydrogen absorbing alloy powder B gives improved ability to absorb and desorb hydrogen, whereby the electrode is improved in different battery characteristics, such as cycle characteristics, high-rate discharge characteristics and infernal pressure characteristics, at the same time. 
Sanyo Electric Co., Ltd.
H H H H B B B Y
H01M H01M H01M H01M B22F B22F B22F Y02E
inventional inventional inventional additional additional additional inventional additional
Teruhiko Shin Kikuko Yohei Mamoru Nobuyuki Koji
Imoto Fujitani Kato Hirota Kimoto Higashiyama Nishio