GRAPHENE DISPERSION, METHOD FOR PRODUCING SAME, AND ELECTRODE FOR SECONDARY BATTERY

Title:

GRAPHENE DISPERSION, METHOD FOR PRODUCING SAME, AND ELECTRODE FOR SECONDARY BATTERY

Document Type and Number:

WIPO Patent Application WO/2020/090704

Kind Code:

A1

Abstract:

The present invention pertains to a graphene dispersion containing graphene dispersed in a dispersion medium. In the graphene contained in the dispersion, the area percentage of graphene having a size of at least 500 nm and 1 μm or less in the plane direction is at least 30%, and the area percentage of graphene having a size of at least 10 μm and 50 μm or less in the plane direction is at least 30%. The present invention can provide a graphene dispersion which is in a stable dispersion state and with which strong conductive paths can be formed.

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Inventors:

KONISHI TAKASHI (JP)
TAMAKI EIICHIRO (JP)

Application Number:

PCT/JP2019/042102

Publication Date:

May 07, 2020

Filing Date:

October 28, 2019

Export Citation:

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Assignee:

TORAY INDUSTRIES (JP)

International Classes:

C01B32/194; C01B32/198; H01M4/13; H01M4/139; H01M4/62; H01G11/36; H01G11/86

Domestic Patent References:

WO2017047523A1	2017-03-23
WO2017047521A1	2017-03-23
WO2017047522A1	2017-03-23
WO2017047521A1	2017-03-23
WO2017047522A1	2017-03-23
WO2017047523A1	2017-03-23

Foreign References:

JP2017135105A	2017-08-03
JP2013101983A	2013-05-23
JP2015059079A	2015-03-30
JP2017135105A	2017-08-03
JP2013101983A	2013-05-23

Other References: