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US 2022/0029232 A1Published application
Cylindrical battery
AssigneesSanyo Electric Co., Ltd., Panasonic Corporation
InventorsRyo Kashimura, Oose Okutani, Shinya Geshi
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AssigneesSanyo Electric Co., Ltd., Panasonic Corporation
InventorsRyo Kashimura, Oose Okutani, Shinya Geshi
Estimating the term…
A cylindrical battery wherein a central part of a sealing plate, fixed by swaging to an opening of an external packaging can, is configured to be warped toward the inner part of the battery. One embodiment is provided with: an electrode body in which a positive electrode plate and a negative electrode plate are rolled with a separator being disposed therebetween; an electrolytic solution; an external packaging can which has a bottomed cylindrical shape and which houses the electrode body and the electrolytic solution; and a sealing plate which is fixed by swaging to an opening of the external packaging can with a gasket therebetween. In the sealing plate, prior to the swage fixing, an outer peripheral edge to be fixed by swaging to the external packaging can is formed inclined so as to be directed to the inner part of the battery, toward radially outward.
A cylindrical battery comprising:
A method of manufacturing a cylindrical battery, the cylindrical battery comprising:
A sealing plate to be caulked and fixed to an opening of an exterior can of a cylindrical battery via a gasket, wherein an outer circumferential end edge of the sealing plate, the outer circumferential end edge being to be caulked and fixed to the exterior can, is formed in such a shape as to incline to a battery inward side toward a radially outer side.
Dependencies are inferred from the claim text.