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US 5,334,226 AGranted
Method of manufacturing a sealed-type nickel-hydrogen cell
AssigneeFurukawa Denchi Kabushiki Kaisha
InventorJun Furukawa
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Abstract
A method of manufacturing a sealed-type nickel-hydrogen cell. The invention reduces the number of cycles of the charge-discharge operation required during the formation process used to manufacture a sealed-type nickel-hydrogen cell having a large high-rate discharge capacity. A sealed-type nickel-hydrogen cell is subjected to at least one cycle of a charge-discharge operation and thereafter maintained at a temperature in the range of about 30.degree. C. to 60.degree. C. for a predetermined length of time.
Claims7
A method of manufacturing a sealed nickel-hydrogen cell, comprising:
- providing a laminate comprising a nickel electrode, a hydrogen electrode and a separator interposed between the electrodes;
- placing the laminate and an electrolyte in a container and sealing the container to form a sealed cell;
- charging and discharging the sealed cell;
- and
- after the step of charging and discharging the cell at least one cycle, heating the sealed cell in its discharged state to a temperature of 30.degree.-60.degree. C. for a time sufficient to maximize the discharge capacity of the cell.
2 more elements
Dependencies are inferred from the claim text.