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. 09, 2024
Filed:
Oct. 14, 2021
Prime Planet Energy & Solutions, Inc., Tokyo, JP;
Kazuhiro Sotome, Himeji, JP;
Kaori Ishikawa, Nishinomiya, JP;
Yuta Matsuo, Kobe, JP;
Kentaro Takahashi, Kasai, JP;
Daisuke Ikeda, Kakogawa, JP;
Kunihiko Hayashi, Miki, JP;
Naoki Uchida, Kakogawa, JP;
Prime Planet Energy & Solutions, Inc., Tokyo, JP;
Abstract
(A) A first layer is formed by applying a first negative electrode slurry to the surface of a negative electrode substrate. (B) A second layer is formed by applying a second negative electrode slurry to the surface of the first layer. The first negative electrode slurry includes a first negative electrode composite material. The second negative electrode slurry includes a second negative electrode composite material. Each of the first negative electrode composite material and the second negative electrode composite material includes a negative electrode active material and a cellulose-based binder. The negative electrode active material includes a first graphite powder and a second graphite powder. The first negative electrode composite material includes the cellulose-based binder at a first mass fraction. The second negative electrode composite material includes the cellulose-based binder at a second mass fraction.