Armstrong, Westerman, Hattori, McLeland & Naughton LLP
Hydrogen storing alloy electrode and process for producing hydrogen storage alloy electrode
 An object of the present invention is to provide an effective hydrogen-absorbing alloy activation process which can enhance the electrochemical activity of a hydrogen-absorbing alloy and to provide a hydrogen-absorbing alloy electrode which, when used in a battery, ensures an excellent initial inner pressure characteristic, low-temperature discharge characteristic, high-rate discharge characteristic and cycle characteristic. In accordance with the present invention, a hydrogen-absorbing alloy electrode production process is provided which comprises an alloy activation treatment step of immersing a hydrogen-absorbing alloy in a strong acid treatment solution containing metal ions and, in the course of the pH rise of the acid treatment solution, adding an alkali to the acid treatment solution to promote the pH rise of the acid treatment solution. 
Sanyo Electric Co., Ltd.
Y H Y H
Y02E H01M Y10T H01M
additional inventional additional inventional
Hiroshi Teruhiko Nobuyuki Kikuko Mitsuzou Ikuo Tadashi Yoshinori Shin Yasushi Koji Mamoru
Fukuda Imoto Higashiyama Kato Nogami Yonezu Ise Matsuura Fujitani Kuroda Nishio Kimoto