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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 11283065 B1

PDFFull Text
Date of Patent:
Mar. 22, 2022

Filed:

Aug. 22, 2018

Graphene-containing electrode, method for manufacturing same, and power storage device using same

Applicant:

National Institute for Materials Science, Ibaraki, JP;

Inventors:

Jie Tang, Ibaraki, JP;

Kun Zhang, Ibaraki, JP;

Luchang Qin, Ibaraki, JP;

Assignee:

NATIONAL INSTITUTE FOR MATERIALS SCIENCE, Ibaraki, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Daniel S Gatewood

Int. Cl.
CPC ...
H01M 4/36 (2006.01); C01B 32/174 (2017.01); C01B 32/194 (2017.01); H01G 11/24 (2013.01); H01G 11/26 (2013.01); H01G 11/36 (2013.01); H01G 11/38 (2013.01); H01G 11/42 (2013.01); H01G 11/86 (2013.01); H01M 4/133 (2010.01); H01M 4/1393 (2010.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); C01B 32/174 (2017.08); C01B 32/194 (2017.08); H01G 11/24 (2013.01); H01G 11/26 (2013.01); H01G 11/36 (2013.01); H01G 11/38 (2013.01); H01G 11/42 (2013.01); H01G 11/86 (2013.01); H01M 4/133 (2013.01); H01M 4/1393 (2013.01); H01M 4/587 (2013.01); H01M 4/622 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); C01B 2202/22 (2013.01); C01B 2204/22 (2013.01); C01B 2204/32 (2013.01); C01P 2004/03 (2013.01); C01P 2004/50 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/12 (2013.01); C01P 2006/14 (2013.01); C01P 2006/16 (2013.01); H01M 2004/021 (2013.01);
Abstract

The present invention provides an electrode that is excellent in conductivity and improves the power density and energy density of a power storage device, a method for manufacturing the same, and a power storage device using the same. The electrode of the present invention is an electrode containing at least a graphene aggregate having a particle diameter of 0.1 μm or more and less than 100 μm, wherein the graphene aggregate is an aggregate of graphene basic structures each having graphene layers among which a fibrous material is located. A method for manufacturing the electrode of the present invention comprises a step of mixing the above-mentioned graphene basic structures with at least a lower alcohol having 1 or more and 5 or less carbon atoms to form a graphene aggregate in which the graphene basic structures are aggregated, and a step of forming a film using the graphene aggregate.

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