NONAQUEOUS SECONDARY BATTERY ELECTRODE BINDER AND NONAQUEOUS SECONDARY BATTERY ELECTRODE

WIPO Patent Application WO/2021/131279

A1

Provided is a nonaqueous secondary battery electrode binder that makes it possible to produce a nonaqueous secondary battery having: a low internal resistance; good cycle properties; and an electrode active substance layer that exhibits little cracking and has strong peeling strength from a collector. Also provided is a nonaqueous secondary battery electrode. The nonaqueous secondary battery electrode binder according to the present invention contains a resin component and is water-soluble. The surface free energy γB at 23°C is 70 mJ/m2 or less and the dipole component γp B of the surface free energy is 26 mJ/m2 or less.

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KAWAHARA YUTA (JP)
KURATA TOMONORI (JP)
HANASAKI MITSURU (JP)

PCT/JP2020/039678

July 01, 2021

October 22, 2020

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SHOWA DENKO KK (JP)

H01M4/62; C08L101/00; H01M4/13; H01M4/36; H01M4/38; H01M4/48; H01M4/587; H01M10/0569

WO2017150200A1	2017-09-08
WO2017150200A1	2017-09-08

JPH11219708A	1999-08-10
JP2013149396A	2013-08-01
JP2019023083A	2019-02-14
JP2015023015A	2015-02-02

K1TAZAK1 YASUAKIHATA TOSHIO, JOURNAL OF THE JAPAN SOCIETY FOR ADHESION, vol. 8, 1972, pages 131 - 141
See also references of EP 3876319A4

OIKAWA Shu et al. (JP)

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