COMPOSITE FLUOROPOLYMER BINDER AND METHODS OF MAKING SAME, COMPOSITE BINDER MATERIAL AND METHOD FOR PRODUCING SAME, ELECTRODE, ENERGY STORAGE DEVICE, BINDER POWDER FOR ELECTROCHEMICAL DEVICE AND METHOD FOR PRODUCING SAME, BINDER FOR ELECTROCHEMICAL DEVICE, ELECTRODE MIXTURE, ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY

WIPO Patent Application WO/2023/286787

A1

Composite binder materials for energy storage applications are disclosed. The composite binder materials include a fluoropolymer, such as polytetrafluoroethylene (PTFE), integrated with a conductive additive and a low-melting point thermoplastic. Methods of making the composite binder materials are also disclosed. The methods include providing an emulsion of the fluoropolymer, mixing the low-melting point thermoplastic and the particulate conductive additive into the emulsion of the fluoropolymer to form a mixture, and coagulating the mixture to produce a coagulum including the composite binder material. The disclosure also provides a binder powder for an electrochemical device capable of providing an electrode mixture sheet having excellent uniformity of tensile strength. The disclosure relates to a binder powder for an electrochemical device, containing a non-fibrillated fibrillatable resin and a thermoplastic polymer.

FALZONE ALEC (US)
GRUMBLES EMILY (US)
SIMPSON WADE (US)
SUNSTROM JOSEPH (US)
HENDERSHOT RONALD (US)
YAMANAKA TAKU (JP)
KATO TAKETO (JP)
YAMADA TAKAYA (JP)
TERADA JUNPEI (JP)
TOKUDA MASATO (JP)
NISHIMURA KENTA (JP)

PCT/JP2022/027467

January 19, 2023

July 12, 2022

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DAIKIN AMERICA INC (US)
DAIKIN IND LTD (JP)

C08L27/18

US20120107689A1	2012-05-03
US20190305316A1	2019-10-03
JP2003187870A	2003-07-04
JPH09255807A	1997-09-30
JPH10149841A	1998-06-02

WISEPLUS IP FIRM (JP)

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