Method for manufacturing nickel-metal-hydride battery

Details Method for manufacturing nickel-metal-hydride battery Method for manufacturing nickel-metal-hydride battery

1995-08-08

1998-09-29

Kalafut, Stephen

Metal working

Method of mechanical manufacture

Electrical device making

296232, 429206, 429223, H01M 1030

Patent

active

058141081

ABSTRACT:
In a method according to the present invention for manufacturing a nickel-metal-hydride battery, a positive electrode including nickel hydroxide, a negative electrode including a hydrogen occlusion alloy, and a separator are assembled, and the assembled components are placed in a battery vessel. The battery vessel is filled with an alkali electrolyte, and the vessel is sealed so as to produce a sealed nickel-metal-hydride battery. Thereafter, a formation step including at least one charging/discharging cycle of the nickel-metal-hydride battery is carried out, and after the formation step, the nickel-metal-hydride battery is charged. After the charging, the nickel-metal-hydride battery is left in a charged state for from one day until a time when there is no discharge capacity due to self-discharge.

REFERENCES:
patent: 3899351 (1975-08-01), Maurer et al.
patent: 5131920 (1992-07-01), Moriwaki et al.
patent: 5348822 (1994-09-01), Ovshinsky et al.
patent: 5384210 (1995-01-01), Furukawa
Patent Abstracts of Japan, unexamined applications, E field, vol. 16, No. 271, Jun. 18, 1992, The Patent Office Japanese Government, p. 152 E 1218; & JP A 04065 067 (Matsushita Electric Ind. Co. Ltd.) *abstract.
Chemical Abstracts, vol. 120, No. 8, Feb. 21, 1994, Columbus, Ohio, USA; Iwaki Tsu Tomu et al., "Forming of Sealed Nickel/Hydrogen Batteries" p. 295, No. 81 617c; & JP A 05 275 082 *absract.

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