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. 04, 2015
Filed:
Sep. 02, 2011
Kenji Tanaka, Kyoto, JP;
Kazuaki Matsuo, Kyoto, JP;
Kazuhide Tozuka, Kyoto, JP;
Kazuya Okabe, Kyoto, JP;
Kenji Tanaka, Kyoto, JP;
Kazuaki Matsuo, Kyoto, JP;
Kazuhide Tozuka, Kyoto, JP;
Kazuya Okabe, Kyoto, JP;
GS Yuasa International Ltd., Kyoto-shi, Kyoto, JP;
Abstract
Provided is a battery which has less tendency to experience delamination or loss of short circuit prevention layer and/or active material layer during manufacture and use. A battery comprising a laminated electrode assembly in which a positive electrode, a negative electrode, and a separator are laminated together; wherein an alumina-containing layer containing γ-alumina particles is formed on at least one species selected from among the group consisting of the positive electrode, the negative electrode, and the separator. The fact that alumina-containing layer(s) is or are made to contain γ-alumina particles makes it possible to obtain high bond strength between alumina-containing layer(s) and electrode(s) comprising metal(s), current collector(s) and/or active material(s) making up electrode(s), and/or separator(s).