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:
Oct. 03, 2023

Filed:

Jul. 18, 2022
Applicant:

Mitsubishi Chemical Corporation, Tokyo, JP;

Inventors:

Kyu Ota, Tokyo, JP;

Hiroto Tatsuno, Tokyo, JP;

Kazuhiro Sumioka, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/96 (2006.01); H01M 4/04 (2006.01); H01M 4/86 (2006.01); H01M 4/88 (2006.01); H01M 8/18 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/96 (2013.01); H01M 4/0438 (2013.01); H01M 4/8605 (2013.01); H01M 4/8875 (2013.01); H01M 4/8882 (2013.01); H01M 4/8892 (2013.01); H01M 8/18 (2013.01); H01M 2004/021 (2013.01);
Abstract

A hydrophilic porous carbon electrode which has excellent hydrophilicity, which has high reaction activity when used for a battery, and with which excellent battery characteristics is able to be obtained is provided. A hydrophilic porous carbon electrode is a sheet-form hydrophilic porous carbon electrode in which a carbon fiber is bonded using a resin carbide and has a contact angles θof water on both surfaces in a thickness direction being 0 to 15° and a contact angle θof water in a middle portion in the thickness direction being 0 to 15°. The hydrophilic porous carbon electrode is obtained by forming the carbon fiber and a binder fiber into a sheet, impregnating the sheet into a thermosetting resin, subjecting it to heat press processing, and then subjecting it to carbonization at 400 to 3000° C. in an inert atmosphere. The hydrophilic porous carbon electrode is transported and is subjected to a heat treatment while an oxidizing gas flows at 400 to 800° C. in a direction perpendicular to a direction in which the hydrophilic porous carbon electrode is transported to be subjected to hydrophilization.


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