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:
Jun. 21, 2016
Filed:
Dec. 28, 2011
Hiroyuki Akita, Seto, JP;
Harunari Shimamura, Nagoya, JP;
Hiroyuki Akita, Seto, JP;
Harunari Shimamura, Nagoya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
This separator is provided at least at one surface thereof with a heat-resistant layer containing inorganic oxide particles and a binder, and the inorganic oxide particles have a component containing gallium in the range of 5 to 200 weight ppm in an aluminum oxide. This lithium ion secondary battery has: an electrode body including a positive electrode plate and a negative electrode plate laminated by interposing the separator therebetween; and a non-aqueous electrolytic solution impregnated in the electrode body. A lithium ion secondary battery using the separator having the heat-resistant layer is therefore less likely to cause a rise in resistance even in use under high-rate conditions.