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:
Aug. 02, 2016
Filed:
Dec. 17, 2010
Hisataka Fujimaki, Nisshin, JP;
Katsuyuki Hojo, Toyota, JP;
Tomotaka Hagino, Toyota, JP;
Hiroyuki Kawaki, Toyota, JP;
Shinya Kamada, Toyota, JP;
Hisanao Kojima, Kariya, JP;
Hisataka Fujimaki, Nisshin, JP;
Katsuyuki Hojo, Toyota, JP;
Tomotaka Hagino, Toyota, JP;
Hiroyuki Kawaki, Toyota, JP;
Shinya Kamada, Toyota, JP;
Hisanao Kojima, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
Provided is a method for producing a lithium secondary cell with which the concentrated precipitation of metal impurities at the negative electrode is inhibited and short circuiting is unlikely to occur. The production method includes, assembling together the positive electrode, the separator, and the negative electrode, and then impregnating the assembly with the nonaqueous electrolyte; charging the assembly within 1 min so that a maximum achieved potential of the positive electrode becomes 3.2 V or more with respect to the redox potential of lithium; allowing the assembly to stand for 10 min or less after the charging has ended; and discharging the assembly within 1 min after the standing step.