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:
Aug. 22, 2023

Filed:

Oct. 26, 2021
Applicant:

Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;

Inventor:

Tatsuya Ikenuma, Kanagawa, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/04 (2006.01); H01M 4/66 (2006.01); H01M 4/139 (2010.01); H01M 10/052 (2010.01); H01M 4/13 (2010.01);
U.S. Cl.
CPC ...
H01M 4/623 (2013.01); H01M 4/0404 (2013.01); H01M 4/049 (2013.01); H01M 4/13 (2013.01); H01M 4/139 (2013.01); H01M 4/625 (2013.01); H01M 4/663 (2013.01); H01M 4/666 (2013.01); H01M 4/667 (2013.01); H01M 10/052 (2013.01); H01M 4/661 (2013.01); Y02E 60/10 (2013.01); Y02T 10/70 (2013.01);
Abstract

An electrode improved for achieving a storage battery having both a high electrode strength and favorable electrode conductivity is provided. The electrode includes graphene and a modified polymer in an active material layer or includes a layer substantially formed of carbon particles and an active material layer including a modified polymer over a current collector. The modified polymer has a poly(vinylidene fluoride) structure and partly has a polyene structure or an aromatic ring structure. The polyene structure or the aromatic ring structure is sandwiched between poly(vinylidene fluoride) structures.


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