The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 2020
Filed:
Sep. 07, 2018
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Masakazu Umehara, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
A method of producing a negative electrode sheet includes forming a fluoride coating on surfaces of a plurality of negative electrode active material particles by performing a fluorination treatment on the surfaces of the plurality of negative electrode active material particles; producing a negative electrode composite material containing a plurality of wet granules obtained by mixing and granulating the negative electrode active material particles with the fluoride coating on the surfaces, a binder, and water as a solvent; causing the negative electrode composite material to pass through a gap between two rollers that face each other, compressing the negative electrode composite material into a film, and attaching the film to a surface of a current collector foil; and forming a negative electrode mixture layer on the surface of the current collector foil by drying the film on the surface of the current collector foil.