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. 06, 2017
Filed:
May. 02, 2011
Tomoyoshi Ueki, Toyota, JP;
Hideaki Fujita, Kyotanabe, JP;
Harunari Shimamura, Moriguchi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
A nonaqueous electrolyte secondary batteryaccording to the present invention is provided with an electrode assemblyhaving a structure in which a positive electrodeand a negative electrodeare stacked with a separatorinterposed therebetween. A porous filler layeris formed between the positive electrodeand the separator. The filler layercontains a filler made of an inorganic material and contains a binder. The relationship T>D holds where T is the average thickness of the filler layerand D is the average particle diameter of a positive electrode active materialpresent in the positive electrodefacing the filler layer, and a pressure applied to the electrode assemblyin the stacking direction is set to at least 0.1 MPa.