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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 11942621 B1

PDFFull Text
Date of Patent:
Mar. 26, 2024

Filed:

Nov. 13, 2018

Positive electrode coating liquid, positive electrode precursor, and nonaqueous lithium electric storage element

Applicant:

Asahi Kasei Kabushiki Kaisha, Tokyo, JP;

Inventors:

Kazuteru Umetsu, Tokyo, JP;

Keita Kusuzaka, Tokyo, JP;

Yuichiro Hirakawa, Tokyo, JP;

Nobuhiro Okada, Tokyo, JP;

Assignee:

Asahi Kasei Kabushiki Kaisha, Tokyo, JP;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Matthew T Martin

Assistant Examiner:

Bartholomew A Hornsby

Int. Cl.
CPC ...
H01M 4/131 (2010.01); H01M 4/02 (2006.01); H01M 4/133 (2010.01); H01M 4/1391 (2010.01); H01M 4/505 (2010.01); H01M 4/66 (2006.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/1391 (2013.01); H01M 4/505 (2013.01); H01M 4/66 (2013.01); H01M 2004/028 (2013.01);
Abstract

Provided is a positive electrode precursor having a positive electrode active material layer, wherein the mass proportion Aof a carbon material in the positive electrode active material layer accounts for 15-65 mass %, the mass proportion Aof a lithium transition metal oxide in the positive electrode active material layer accounts for 5-35 mass %, the mass proportion Aof an alkali metal compound in the positive electrode active material layer accounts for 10-50 mass %, A/Ais 0.10-2.00, A/Ais 0.50-3.00, and the positive electrode active material layer has a peel strength of 0.02-3.00 N/cm.

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Umetsu, Kazuteru. (2024). Positive electrode coating liquid, positive electrode precursor, and nonaqueous lithium electric storage element (U.S. Patent No. 11942621). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11942621

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

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