The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 14, 2020

Filed:

Jan. 11, 2018
Applicant:

Fdk Corporation, Tokyo, JP;

Inventors:

Hidefumi Isaji, Tokyo, JP;

Hiroyuki Shibaoka, Tokyo, JP;

Isao Mugima, Tokyo, JP;

Tomomi Nakamura, Tokyo, JP;

Tetsu Yamanaka, Tokyo, JP;

Assignee:

FDK CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/26 (2006.01); H01M 10/28 (2006.01); H01M 10/30 (2006.01); H01M 2/20 (2006.01); H01M 2/04 (2006.01);
U.S. Cl.
CPC ...
H01M 2/263 (2013.01); H01M 10/286 (2013.01); H01M 10/30 (2013.01); H01M 2/0408 (2013.01); H01M 2/202 (2013.01); H01M 2220/30 (2013.01);
Abstract

A current collecting lead is interposed between a sealing body and a positive electrode current collector for connecting the sealing body and the positive electrode current collector, the sealing body including a positive electrode terminal, the positive electrode current collector being attached to an electrode group, the current collecting lead including: a top wall portion positioned on the side of the sealing body; leg portions positioned on the side of the positive electrode current collector and that face the top wall portion; and a pair of side wall portions that extend between side edges of the top wall portion and side edges of the leg portions and that face each other, a first corner portion and a second corner portion formed by the top wall portion and the side wall portions and a third corner portion and a fourth corner portion formed by the leg portions and the side wall portions being rounded corners that are curved.


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