Battery cell and method of manufacturing the same

US8932740B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8932740-B2
Application numberUS-201013378348-A
CountryUS
Kind codeB2
Filing dateJun 16, 2010
Priority dateJun 17, 2009
Publication dateJan 13, 2015
Grant dateJan 13, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Provided is a battery cell that allow the inner surfaces of connection strips of a current collector to be brought into contact with the outermost circumferential surface of a layered electrode portion of a power generating element while preventing the connection strips from scratching the layered electrode portion. The battery cell includes: a power generating element formed of cathode and anode sheets that are wound up with a separator interposed between the cathode and anode sheets, the power generating element having a layered electrode portion on at least one side of the winding axis direction, the layered electrode portion being one of a cathode and an anode; a current collector having a connection strip arranged along an outermost circumferential surface of the layered electrode portion, the current collector being conductively connected to an external terminal; and a clamp including a first clamp portion that clamps the layered electrode portion and a second clamp portion that clamps the layered electrode portion clamped by the first clamp portion and the connection strip of the current collector together.

First claim

Opening claim text (preview).

The invention claimed is: 1. A battery cell, comprising: a power generating element including cathode and anode sheets that are wound up with a separator interposed between the cathode and anode sheets, the power generating element comprising a layered electrode portion on at least one side of a winding axis direction, the layered electrode portion comprising one of a cathode and an anode; a current collector including a connection strip arranged along an outermost circumferenti…

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Frequently asked questions

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What does patent US8932740B2 cover?
Provided is a battery cell that allow the inner surfaces of connection strips of a current collector to be brought into contact with the outermost circumferential surface of a layered electrode portion of a power generating element while preventing the connection strips from scratching the layered electrode portion. The battery cell includes: a power generating element formed of cathode and ano…
Who is the assignee on this patent?
Munenaga Noriyoshi, Nakamura Taku, Gs Yuasa Int Ltd
What technology area does this patent fall under?
Primary CPC classification H01M50/538. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jan 13 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).