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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 9570744 B1

PDFFull Text
Date of Patent:
Feb. 14, 2017

Filed:

Jul. 25, 2013

Lithium ion secondary battery

Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Atsushi Sano, Tokyo, JP;

Hiroyuki Miyabara, Tokyo, JP;

Yasuhiko Emori, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Laura Weiner

Int. Cl.
CPC ...
H01M 4/525 (2010.01); H01M 4/131 (2010.01); H01M 10/0525 (2010.01); H01M 2/02 (2006.01); H01M 4/52 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); H01M 2/0285 (2013.01); H01M 2/0287 (2013.01); H01M 4/131 (2013.01); H01M 4/523 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); Y02E 60/122 (2013.01);
Abstract

[Problem] To provide a lithium ion secondary battery having excellent high-rate discharge characteristics. [Solution] Excellent high-rate discharge characteristics are obtained by a lithium ion secondary battery in which a compound represented by Li(NiCoAl)O(where 0.95≦a≦1.05, 0.5≦x≦0.9, 0.05≦y≦0.2, and 0.7≦x+y≦1.0) is used as a positive electrode active material in a positive electrode, the positive electrode has an electrode density of 3.75 to 4.1 g/cm, and the positive electrode has a BET specific surface area of 1.3 to 3.5 m/g as an electrode.

Find Patent Forward Citations

Sano, Atsushi. (2017). Lithium ion secondary battery (U.S. Patent No. 9570744). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9570744

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

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