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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 9755238 B1

PDFFull Text
Date of Patent:
Sep. 05, 2017

Filed:

Sep. 10, 2012

Non-aqueous electrolyte secondary battery and manufacturing method thereof

Applicants:

Hiroshi Onizuka, Toyota, JP;

Tomohiro Nakano, Okazaki, JP;

Kyoko Kikuchi, Seto, JP;

Inventors:

Hiroshi Onizuka, Toyota, JP;

Tomohiro Nakano, Okazaki, JP;

Kyoko Kikuchi, Seto, JP;

Assignee:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;

Attorney:

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Primary Examiner:

Kenneth Douyette

Int. Cl.
CPC ...
H01M 4/60 (2006.01); H01M 10/0525 (2010.01); H01M 4/58 (2010.01); H01M 10/0567 (2010.01); H01M 10/0568 (2010.01); H01M 4/04 (2006.01); H01M 4/139 (2010.01); H01M 4/36 (2006.01); H01M 10/42 (2006.01); H01M 4/13 (2010.01); H01M 10/058 (2010.01); H01M 10/44 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/60 (2013.01); H01M 4/0404 (2013.01); H01M 4/0447 (2013.01); H01M 4/13 (2013.01); H01M 4/139 (2013.01); H01M 4/366 (2013.01); H01M 4/5825 (2013.01); H01M 10/058 (2013.01); H01M 10/0525 (2013.01); H01M 10/0567 (2013.01); H01M 10/0568 (2013.01); H01M 10/4235 (2013.01); H01M 10/44 (2013.01); H01M 2004/027 (2013.01); H01M 2300/0017 (2013.01);
Abstract

A non-aqueous electrolyte secondary battery according to the present invention includes a positive electrode, a negative electrode, and a non-aqueous electrolyte solution. The negative electrode includes a coating derived from lithium bis(oxalate)borate. The coating derived from lithium bis(oxalate)borate includes a coating containing boron element and a coating containing oxalate ion. A ratio of the boron element contained in the coating derived from lithium bis(oxalate)borate to the oxalate ion is equal to or more than 5. Accordingly, it is possible to provide a non-aqueous electrolyte secondary battery capable of reliably obtaining the effect due to the formation of a coating.

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