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:
Nov. 10, 2015
Filed:
Nov. 12, 2010
Hiroki Nagai, Nagoya, JP;
Masahiro Morita, Toyota, JP;
Takashi Iwao, Kadoma, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
A secondary batteryincludes a positive electrode current collectorand a positive electrode mixture layercoated on the positive electrode current collector. The positive electrode mixture layerincludes a positive electrode active materialand an electrically conductive material. A ratio (Vb/Va) of a volume Vb of holes formed inside the positive electrode mixture layerto an apparent volume Va of the positive electrode mixture layersatisfies 0.30≦(Vb/Va). In addition, in a micropore distribution of differential micropore volume with respect to a micropore diameter as measured by the mercury intrusion method, the positive electrode mixture layerhas a first peak at which a micropore diameter D1 satisfies D1≦0.25 μm and a second peak at which a micropore diameter D2 is greater than the first peak micropore diameter D1.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile