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:
Dec. 08, 2015
Filed:
Mar. 16, 2011
Tomoyoshi Ueki, Toyota, JP;
Harunari Shimamura, Moriguchi, JP;
Yusuke Fukumoto, Moriguchi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
The present invention provides a non-aqueous electrolyte secondary battery with great high-rate discharge properties while being less susceptible to an extensive internal short circuit and likely to provide proper assembly. The non-aqueous electrolyte secondary battery comprises a separator () placed between a positive electrode and a negative electrode. Separator () comprises a porous resin layer (), and a porous heat-resistant layer () overlaid at least on a first face of resin layer (). Heat-resistant layer () comprises a filler consisting of an inorganic material, and a binder. Heat-resistant layer () has a porosity of 55% or higher. Heat-resistant layer () exhibits a 90° peel strength of 2.9 N/m to 15.1 N/m to the resin layer ().