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. 03, 2014
Filed:
Oct. 08, 2008
Takayuki Fujii, Fukushima, JP;
Kenichi Kawase, Fukushima, JP;
Hideki Nakai, Fukushima, JP;
Rikako Imoto, Fukushima, JP;
Kensuke Yamamoto, Fukushima, JP;
Takayuki Fujii, Fukushima, JP;
Kenichi Kawase, Fukushima, JP;
Hideki Nakai, Fukushima, JP;
Rikako Imoto, Fukushima, JP;
Kensuke Yamamoto, Fukushima, JP;
Sony Corporation, Tokyo, JP;
Abstract
A battery capable of obtaining superior cycle characteristics and safety is provided. The battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. The anode has an insulative coat on an anode active material layer provided on an anode current collector. The coat contains an insulating material such as a meal hydroxide and a metal oxide. The coat is in a form of plate divided into a plurality of portions. The insulation property of the coat prevents internal short circuit. A plurality of portions of the coat prevent separation of the anode active material layer and decomposition of the electrolytic solution. Further, even when short circuit occurs, heat generation is prevented by heat absorption characteristics of the coat.