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1. 发明专利

JPH097595A NICKEL-HYDROGEN STORAGE BATTERY 失效
公开(公告)号：JPH097595A
公开(公告)日：1997-01-10
申请号：JP15241796
申请日：1996-06-13
申请人： ACCUMULATEURS FIXES
发明人： YANIKU BORUTOMIYU
IPC分类号： H01M4/28 , H01M4/32 , H01M4/52 , H01M10/30 , H01M10/34
摘要： PROBLEM TO BE SOLVED: To provide a Ni-H2 storage battery, of which capacity is improved and of which performance during the use is uniformized, by setting the ratio of capacity of a positive electrode to capacity of a negative electrode to be between 1.02-1.10, and coating the active material of the positive electrode with cobalt hydroxide after the impregnation. SOLUTION: Negative electrodes 10 are arranged opposite to each other, and separated by a spacer 11, which can be filled with hydrogen. The negative electrodes 10 and positive electrodes 12 are surrounded by the separators 13. A porous medium of the positive electrode is formed of a nickel-plated porous thin film, in which the nickel powder is sintered in the surface thereof. The active material composed of nickel hydroxide, which contains cobalt hydroxide at about 5%, is electrochemically impregnated with the porous part of the medium at about 14g/dm of ratio of the electrode. The electrode is impregnated with the cobalt acetate solution at 70g/1, which is maintained at 55 deg.C for 7 minutes. Water included in the electrodes are drained, and the electrodes are washed with the deionized water, and thereafter, dried. Furthermore, after the caustic soda processing is performed, the electrode is dried so as to deposit cobalt hydroxide for adhesion.

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