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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 11018332 B1

PDFFull Text
Date of Patent:
May. 25, 2021

Filed:

Apr. 26, 2018

Lithium secondary battery including lithium metal as negative electrode active material

Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Tooru Matsui, Osaka, JP;

Junichi Sakamoto, Osaka, JP;

Kazuko Asano, Osaka, JP;

Akira Kano, Osaka, JP;

Kensuke Nakura, Osaka, JP;

Assignee:

PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka, JP;

Attorney:

McDermott Will and Emery LLP

Primary Examiner:

Daniel S Gatewood

Int. Cl.
CPC ...
H01M 4/134 (2010.01); H01M 4/04 (2006.01); H01M 4/46 (2006.01); H01M 4/1395 (2010.01); H01M 4/1391 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/131 (2010.01); H01M 4/70 (2006.01); H01M 4/66 (2006.01); H01M 10/052 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/134 (2013.01); H01M 4/0404 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/1395 (2013.01); H01M 4/463 (2013.01); H01M 4/62 (2013.01); H01M 4/66 (2013.01); H01M 4/70 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01);
Abstract

A lithium secondary battery includes: a positive electrode; a negative electrode including a negative electrode collector having a surface, on which a lithium metal is deposited during charge; a separator disposed between the positive electrode and the negative electrode; and a nonaqueous electrolyte solution filled between the positive electrode and the negative electrode. The negative electrode collector includes projection portions projecting from the surface toward the separator. There is no projection portion on an imaginary line extending from a first end to a second end opposite to the first end of the surface of the negative electrode collector and traversing a space between the projection portions.

Find Patent Forward Citations

Matsui, Tooru. (2021). Lithium secondary battery including lithium metal as negative electrode active material (U.S. Patent No. 11018332). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11018332

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

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