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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.

Patent No.:

US 10673048 B1

PDFFull Text
Date of Patent:
Jun. 02, 2020

Filed:

Jun. 05, 2018

Secondary battery

Applicant:

Sanyo Electric Co., Ltd., Daito-shi, Osaka, JP;

Inventor:

Masahide Maruyama, Nara, JP;

Assignee:

SANYO Electric Co., Ltd., Daito-shi, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Wyatt P McConnell

Int. Cl.
CPC ...
H01M 2/18 (2006.01); H01M 10/04 (2006.01); H01M 10/0585 (2010.01); H01M 10/0525 (2010.01); H01M 4/1391 (2010.01); H01M 4/133 (2010.01); H01M 4/1393 (2010.01); H01M 4/131 (2010.01); H01M 4/70 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 2/18 (2013.01); H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/1391 (2013.01); H01M 4/1393 (2013.01); H01M 4/70 (2013.01); H01M 10/049 (2013.01); H01M 10/0413 (2013.01); H01M 10/0525 (2013.01); H01M 10/0585 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2220/20 (2013.01);
Abstract

A secondary battery has an electrode assembly including a negative electrode plate and a positive electrode plate and a battery case accommodating the electrode assembly. The negative electrode plate includes a negative electrode core body and first and second negative electrode active material mix layers disposed on the respective surfaces of the negative electrode core body. A first separator is bonded to the first negative electrode active material mix layer, and a second separator is bonded to the second negative electrode active material mix layer. In at least one side edge portion of the negative electrode plate, the first separator has a first bent portion bent toward the second separator, the negative electrode core body has a second bent portion bent toward the second separator, and the second negative electrode active material mix layer includes a region having a thickness less than the thickness of the central portion.

Find Patent Forward Citations

Maruyama, Masahide. (2020). Secondary battery (U.S. Patent No. 10673048). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10673048

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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