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:
Apr. 24, 2018
Filed:
Jul. 27, 2015
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Takamasa Ohtomo, Susono, JP;
Yuki Kato, Gotenba, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
An object of the present invention is to provide a solid lithium secondary battery in which occurrence of short-circuit is suppressed during charging. The object is attained by providing a solid lithium secondary battery comprising an anode current collector, a solid electrolyte layer, a cathode active material layer, and a cathode current collector in this order, wherein the solid electrolyte layer is provided on a surface of the anode current collector, the solid electrolyte layer contains a sulfide solid electrolyte particle, a surface shape of the solid electrolyte layer, which faces the anode current collector, is formed in correspondence with a surface shape of the anode current collector, and 10-point average roughness (R) of the surface of the anode current collector on a solid electrolyte layer side, and 10-point average roughness (R) of a surface of the solid electrolyte layer on an anode current collector side are in a range of 1.8 μm to 2.5 μm, respectively.