CONDUCTIVE CARBON, ELECTRODE MATERIAL INCLUDING SAID CONDUCTIVE CARBON, AND ELECTRODE USING SAID ELECTRODE MATERIAL

Title:

CONDUCTIVE CARBON, ELECTRODE MATERIAL INCLUDING SAID CONDUCTIVE CARBON, AND ELECTRODE USING SAID ELECTRODE MATERIAL

Document Type and Number:

WIPO Patent Application WO/2015/133586

Kind Code:

A1

Abstract:

Provided is a conductive carbon that leads to the production of an electrical storage device having high energy density. This conductive carbon includes a hydrophilic portion, the content of said hydrophilic portion being 10 mass% or more of the entire conductive carbon. When, during the production of an electrode for the electrical storage device, a rolling treatment is performed on an active material layer including active material particles formed atop a current collector and including this conductive carbon, the resulting pressure causes this conductive carbon to spread in a paste form and increase in density. The active material particles approach each other, and this conductive carbon is pressed into gaps formed between adjoining active material particles, filling said gaps. As a result, the amount of active material per unit volume in the electrode obtained after the rolling treatment increases, and the electrode density increases.

Inventors:

KUBOTA SATOSHI (JP)
MINATO YOSHIHIRO (JP)
ISHIMOTO SHUICHI (JP)
TAMAMITSU KENJI (JP)
NAOI KATSUHIKO (JP)
NAOI WAKO (JP)

Application Number:

PCT/JP2015/056562

Publication Date:

September 11, 2015

Filing Date:

March 05, 2015

Export Citation:

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Assignee:

NIPPON CHEMICON (JP)
UNIV TOKYO AGRICULTURE (JP)
K & W LTD (JP)

International Classes:

H01M4/62; H01G11/24; H01G11/42; H01G11/44; H01M4/13; H01M4/139

Domestic Patent References:

WO2009098986A1

2009-08-13

Foreign References:

JP2006261062A	2006-09-28
JP2012528451A	2012-11-12
JP2012099436A	2012-05-24
JP2007103066A	2007-04-19

Other References: