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. 17, 2018
Filed:
Aug. 17, 2015
Toyota Jidosha Kabushiki Kaisha, Toyoya-shi, Aichi-ken, JP;
Yohei Shindo, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
To provide a method for producing a positive electrode active material layer for lithium ion battery that can improve durability and internal resistance of lithium ion battery, and particularly lithium ion battery that operates at high voltage. The method for producing positive electrode active material layer for a lithium ion battery includes coating a substrate with positive electrode mixture slurry containing positive electrode active material, first lithium salt, second lithium salt and solvent, and drying off the solvent. First lithium salt is lithium phosphate, the second lithium salt is selected from the group including of lithium carbonate, lithium hydroxide, lithium nitrate, lithium acetate, lithium sulfate and combinations thereof, and the proportion of the second lithium salt with respect to the first lithium salt is 1 to 50 mol % based on the number of lithium atoms.