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. 25, 2015
Filed:
Nov. 06, 2009
Hiroaki Ikeda, Toyota, JP;
Hiroaki Ikeda, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi Aichi, JP;
Abstract
A lithium secondary battery provided by the present invention includes an electrode body () having a structure in which a positive electrode () and a negative electrode () are laminated, with a separator () interposed therebetween, and a porous insulating layer () obtained by filling and molding insulating particles is formed on the surface of at least one of the positive electrode () and the negative electrode () on the side facing the separator (), wherein insulating particles having a tap density of 0.4 g/cmto 0.9 g/cmare used as the insulating particles that compose the porous insulating layer (), and moreover a pressure () that is applied in the direction of the lamination to the electrode body () is set to a range of 4 kgf/cmto 50 kgf/cm.