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:
Jan. 05, 2021
Filed:
Nov. 19, 2018
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Atsushi Sugihara, Toyota, JP;
Naoto Onodera, Hirakata, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A method of producing a non-aqueous electrolyte secondary battery includes at least the following (α), (β), and (δ): (α) preparing an elementary battery including at least a positive electrode, a negative electrode, a gel film, and an electrolyte solution; (β) carrying out initial charge of the elementary battery; and (δ) after the initial charge, processing the elementary battery to produce a finished-product battery. The negative electrode includes at least a negative electrode active material. The gel film is formed on a surface of the negative electrode. The gel film contains a polymer material and the electrolyte solution. The gel film is thixotropic. The initial charge is carried out while the gel film is under a first pressure. The processing is carried out in such a way that the gel film is put under a second pressure. The second pressure is higher than the first pressure.