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:
Nov. 19, 2013
Filed:
Apr. 02, 2009
Masaki Matsui, Ann Arbor, MI (US);
Masaki Matsui, Ann Arbor, MI (US);
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
To provide a method for manufacturing a lithium secondary battery, characterized by having: a processing lithium secondary battery preparing step for preparing a processing lithium secondary battery that has a positive electrode layer containing LiFePOas a positive-electrode active material, a negative electrode layer containing a carbon material as a negative-electrode active material, and nonaqueous electrolyte solution containing LiPFand LiBOB; and a film forming step of performing a charging process on the processing lithium secondary battery until a voltage of the processing lithium secondary battery falls within a high voltage range in which a film of an oxidative decomposition product of a BOB anion contained in the LiBOB is formed on a surface of the positive-electrode active material.