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.

Date of Patent:
Jul. 31, 2018

Filed:

Oct. 24, 2016
Applicant:

Semiconductor Energy Laboratory Co., Ltd., Atsugi-shi, Kanagawa-ken, JP;

Inventor:

Mikio Yukawa, Kanagawa, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/04 (2006.01); H01M 4/64 (2006.01); H01M 4/13 (2010.01); H01M 4/136 (2010.01); H01M 4/139 (2010.01); H01M 4/1397 (2010.01); H01M 10/0525 (2010.01); H01M 4/36 (2006.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
H01M 4/0404 (2013.01); H01M 4/043 (2013.01); H01M 4/049 (2013.01); H01M 4/0416 (2013.01); H01M 4/0435 (2013.01); H01M 4/0471 (2013.01); H01M 4/13 (2013.01); H01M 4/136 (2013.01); H01M 4/139 (2013.01); H01M 4/1397 (2013.01); H01M 4/366 (2013.01); H01M 4/5825 (2013.01); H01M 4/625 (2013.01); H01M 4/64 (2013.01); H01M 10/0525 (2013.01); H01M 4/5805 (2013.01); H01M 4/62 (2013.01); H01M 2220/30 (2013.01); Y02E 60/122 (2013.01); Y02P 70/54 (2015.11);
Abstract

To provide a method for forming a storage battery electrode including an active material layer with high density in which the proportion of conductive additive is low and the proportion of the active material is high. To provide a storage battery having a higher capacity per unit volume of an electrode with the use of a storage battery electrode formed by the formation method. A method for forming a storage battery electrode includes the steps of forming a mixture including an active material, graphene oxide, and a binder; providing a mixture over a current collector; and immersing the mixture provided over the current collector in a polar solvent containing a reducer, so that the graphene oxide is reduced.


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