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:
Nov. 30, 2018
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Katsuyuki Hojo, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
To melt and diffuse metallic foreign bodies immixed in electrodes of a nonaqueous electrolyte secondary battery before initial charging, electrodes wound with a separator between a cathode plate and an anode plate are placed in a battery case and the battery case is filled with an electrolyte. After the case has been filled, the electrolyte is allowed to permeate into the electrodes. Then, the electrolyte-filled battery is placed in a processing device, and fixed with a surface pressure between at least 0.1 MPa and 5.0 MPa. Thereafter, the cathode potential is adjusted and held for a period of one hour and 35 hours while the battery remains fixed, after which the pre-initial charging process is terminated.