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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 10529978 B1

PDFFull Text
Date of Patent:
Jan. 07, 2020

Filed:

Mar. 08, 2016

Nonaqueous electrolyte secondary battery

Applicant:

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

Inventors:

Takatoshi Higuchi, Hyogo, JP;

Atsushi Fukui, Hyogo, JP;

Takahiro Isono, Hyogo, JP;

Assignee:

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

Attorney:
Primary Examiner:

Laura Weiner

Int. Cl.
CPC ...
H01M 4/133 (2010.01); H01M 4/62 (2006.01); H01M 4/58 (2010.01); H01M 4/36 (2006.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01); H01M 10/058 (2010.01); H01M 4/583 (2010.01); H01M 4/66 (2006.01); C01B 25/30 (2006.01); C01G 41/02 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/133 (2013.01); H01M 4/366 (2013.01); H01M 4/583 (2013.01); H01M 4/587 (2013.01); H01M 4/5825 (2013.01); H01M 4/62 (2013.01); H01M 4/622 (2013.01); H01M 4/625 (2013.01); H01M 4/661 (2013.01); H01M 10/058 (2013.01); H01M 10/0525 (2013.01); C01B 25/30 (2013.01); C01G 41/02 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2220/20 (2013.01); Y02T 10/7011 (2013.01);
Abstract

It is an object of the present invention to provide a nonaqueous electrolyte secondary battery improved in output after storage in a charged state. An embodiment of the present invention provides a nonaqueous electrolyte secondary battery including an electrode assembly having a structure in which a positive plate and a negative plate are stacked with a separator therebetween. The positive plate contains tungsten and a phosphate compound. The negative plate contains a graphitic carbon material as a negative electrode active material and a noncrystalline carbon material stuck on the surface thereof. The negative plate contains tungsten or a tungsten compound on the surface of the noncrystalline carbon material.

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