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:
Oct. 04, 2022
Filed:
Jul. 13, 2020
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Hiroaki Ikeda, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A manufacturing method for a non-aqueous electrolyte secondary battery includes preparing a battery assembly, and performing an initial charging on the battery assembly. In the initial charging, a differential capacity curve of the battery assembly has a first peak voltage at which a first layer is formed on the electrode body and a second peak voltage at which a second layer is formed on the electrode body. The initial charging includes forming the first layer by stopping charging for a first stop time after charging to a first specified voltage that is set between the first peak voltage and the second peak voltage, and forming a second layer with charging performed to a second specified voltage that is set higher than the second peak voltage after forming the first layer.