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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 9620768 B1

PDFFull Text
Date of Patent:
Apr. 11, 2017

Filed:

May. 20, 2013

Negative electrode for lithium secondary batteries, lithium secondary battery, and method for producing the negative electrode for lithium secondary batteries

Applicant:

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

Inventors:

Yasutaka Kogetsu, Osaka, JP;

Kunihiko Bessho, Osaka, JP;

Takashi Shimada, Osaka, JP;

Assignee:

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

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Yoshitoshi Takeuchi

Int. Cl.
CPC ...
H01M 2/26 (2006.01); H01M 2/24 (2006.01); H01M 2/22 (2006.01); H01M 10/0525 (2010.01); H01M 4/133 (2010.01); H01M 4/13 (2010.01); H01M 4/139 (2010.01); H01M 4/04 (2006.01); H01M 4/1393 (2010.01); H01M 10/052 (2010.01); H01M 4/36 (2006.01); H01M 4/131 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/133 (2013.01); H01M 2/26 (2013.01); H01M 4/0404 (2013.01); H01M 4/0421 (2013.01); H01M 4/0423 (2013.01); H01M 4/0471 (2013.01); H01M 4/13 (2013.01); H01M 4/139 (2013.01); H01M 4/1393 (2013.01); H01M 10/0525 (2013.01); H01M 4/131 (2013.01); H01M 4/366 (2013.01); H01M 10/052 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2220/30 (2013.01); Y10T 29/49224 (2015.01);
Abstract

A negative electrodefor lithium secondary batteries, which can increase the charge/discharge capacity of a lithium secondary battery, includes a negative electrode current collector, a negative electrode active material layer, and a lithium layer. The negative electrode active material layer is disposed on regions and of the respective surfaces and of the negative electrode current collector. The lithium layer is disposed on uncovered regions and, which are regions of the respective surfaces and of the negative electrode current collector on which the negative electrode active material layer is not disposed. The lithium layer includes lithium.

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