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:
Mar. 08, 2022
Filed:
Jun. 18, 2019
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Ximeng Li, Susono, JP;
Masafumi Nose, Susono, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
Provided is a method for charging a secondary battery configured to both suppress battery short circuits and to reduce battery charging time. The charging method is a multistep secondary battery charging method comprising first charging in which a secondary battery is charged at a first current density I, and second charging in which the secondary battery is charged at a second current density Iwhich is larger than the first current density I, wherein, when a roughness height of an anode current collecting foil-side surface of a solid electrolyte layer is determined as Y (μm) and a thickness of a roughness coating layer is determined as X (μm), in the first charging, the secondary battery is charged at the first current density Iuntil X/Y reaches 0.5 or more.