Metal working – Method of mechanical manufacture – Electrical device making
Patent
1996-05-28
1997-12-02
Maples, John S.
Metal working
Method of mechanical manufacture
Electrical device making
429192, H01M 1038
Patent
active
056931050
ABSTRACT:
An object of the present invention is to provide a rectangular or sheet-like cell being capable of supplying the flow of a large current, and having a large energy density per volume, at least comprising a negative electrode active material, a separator, a positive electrode active material, an electrolyte, and a collector, characterized in that positive electrodes made of positive electrode active material and negative electrodes made of negative electrode active material are formed in a plurality of regions separated from each other at least on a foldable insulating member, and the cell is housed being folded up in a resin having no active material. According to the present invention, a rectangular cell can be fabricated which can attain an energy density equivalent to that of spirally wound cylindrical cell, and supply the flow of a large current, with the dead space of cell storage space reduced to the utmost. Further, since the integration can be effected even with a single cell, a sheet-type or rectangular cell having a higher cell voltage can be made. Also, the manufacturing process of cells can be simplified.
REFERENCES:
patent: 3006980 (1961-10-01), Story
patent: 3230115 (1966-01-01), Tamminen
patent: 3313657 (1967-04-01), Wood
patent: 3607430 (1971-09-01), Glover
patent: 3701690 (1972-10-01), Dermody et al.
patent: 5089027 (1992-02-01), Rossoll et al.
patent: 5618318 (1997-04-01), Reddy et al.
Canon Kabushiki Kaisha
Maples John S.
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