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:
Apr. 28, 2009
Filed:
Jul. 02, 2004
Tomoo Takada, Fukushima, JP;
Kenichi Kawase, Fukushima, JP;
Isamu Konishiike, Fukushima, JP;
Yukiko Iijima, Fukushima, JP;
Yukio Miyaki, Kanagawa, JP;
Tomoo Takada, Fukushima, JP;
Kenichi Kawase, Fukushima, JP;
Isamu Konishiike, Fukushima, JP;
Yukiko Iijima, Fukushima, JP;
Yukio Miyaki, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
The invention provides an anode capable of inhibiting collapse of a shape of an anode active material layer and a side reaction with an electrolyte in accordance with the collapse, and inhibiting reduction in a battery capacity, and a battery using it. The anode comprises an anode current collector and the anode active material layer. The anode active material layer has a first layer containing Sn and a second layer containing an element other than Sn capable of electrochemically inserting and extracting Li. A component element of the anode current collector is preferably diffused in both the first layer and the second layer.