PRODUCTION METHOD FOR ELECTRODE MEMBER

Organization Name

TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor(s)

Shingo Komura of Nagakute-shi, Aichi-ken (JP)

Yoshiyuki Nagasawa of Tokyo (JP)

Mitsuyasu Sakuma of Tokyo (JP)

PRODUCTION METHOD FOR ELECTRODE MEMBER - A simplified explanation of the abstract

This abstract first appeared for US patent application 18032992 titled 'PRODUCTION METHOD FOR ELECTRODE MEMBER

Simplified Explanation

The method described in the patent application involves producing an electrode member for an all-solid-state battery by preparing a mixed material slurry, molding it into a desired shape, and then drying it to remove the nonaqueous solvent.

Slurry preparation step: preparing a mixed material slurry containing a binder, solid electrolyte particles, and a nonaqueous solvent with low polarity.
Molding step: shaping the mixed material slurry into the desired form.
Drying step: removing the nonaqueous solvent with low polarity to obtain a molded body.

Potential applications of this technology:

Manufacturing of all-solid-state batteries
Production of high-performance electrode members for energy storage devices

Problems solved by this technology:

Low battery resistance in all-solid-state batteries
Prevention of gelation in the mixed material slurry during production

Benefits of this technology:

Improved efficiency in electrode member production
Enhanced stability and performance of the resulting all-solid-state batteries

Original Abstract Submitted

A method for producing an electrode member that configures an electrode body of an all-solid-state battery, including: a slurry preparation step for preparing a mixed material slurry that contains at least a binder, solid electrolyte particles, and a nonaqueous solvent with low polarity; a molding step for molding the mixed material slurry into a desired shape; and a drying step for obtaining a molded body by removing the nonaqueous solvent with low polarity from the mixed material slurry after the molding. Then, the temperature of the mixed material slurry is controlled so as not to cause re-crystallization of the binder, which has been dissolved in the nonaqueous solvent with low polarity, at least until the initiation of the molding step. Consequently, it is possible to stably provide an all-solid-state battery that has low battery resistance, while improving electrode member production efficiency by preventing gelation of a mixed material slurry.

18032992. PRODUCTION METHOD FOR ELECTRODE MEMBER simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)