Rectangular cell
First Claim
1. A battery comprising:
- a negative electrode active material;
a positive electrode active material;
an insulating sheet member of an organic polymer arranged between said negative electrode active material and said positive electrode active material; and
an electrolyte, whereinsaid insulating sheet member includes a plurality of positive pole regions having said positive electrode active material and a plurality of negative pole regions having said negative electrode active material, with one each of said negative pole regions and one of each said positive pole regions being disposed on opposite sides of said sheet insulating member to form a unit cell, with a plurality of unit cells being formed adjacent to each other on said insulating sheet member and being separated from each other by a blank section of said insulating sheet member where said positive pole region and said negative pole region are not provided, with said adjacent unit cells being electrically connected.
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Accused Products
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 by 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.
111 Citations
21 Claims
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1. A battery comprising:
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a negative electrode active material; a positive electrode active material; an insulating sheet member of an organic polymer arranged between said negative electrode active material and said positive electrode active material; and an electrolyte, wherein said insulating sheet member includes a plurality of positive pole regions having said positive electrode active material and a plurality of negative pole regions having said negative electrode active material, with one each of said negative pole regions and one of each said positive pole regions being disposed on opposite sides of said sheet insulating member to form a unit cell, with a plurality of unit cells being formed adjacent to each other on said insulating sheet member and being separated from each other by a blank section of said insulating sheet member where said positive pole region and said negative pole region are not provided, with said adjacent unit cells being electrically connected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification