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. 31, 2015
Filed:
Dec. 08, 2009
Hiroyuki Sakamoto, Toyohashi, JP;
Hiroyuki Sakamoto, Toyohashi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
A positive electrode for a lithium secondary battery provided by the present invention includes an electrically conductive layer and an active material layer on a surface of a positive electrode current collector. The electrically conductive layer contains at least one type of water-insoluble polymer that is soluble in an organic solvent as a binder, the active material layer contains at least one type of water-soluble and/or water-dispersible polymer that dissolves or disperses in water as a binder, and a mass ratio (B/A) of mass (B) per unit surface area of the binder in the active material layer to mass (A) per unit surface area of the binder in the electrically conductive layer satisfies a relationship of 0.06≦B/A≦0.35.