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:
Jan. 27, 2009
Filed:
May. 14, 2004
Tomoo Takada, Kanagawa, JP;
Kenichi Kawase, Fukushima, JP;
Isamu Konishiikee, Kanagawa, JP;
Yukiko Iijima, Fukushima, JP;
Yukio Miyaki, Kanagawa, JP;
Tomoo Takada, Kanagawa, JP;
Kenichi Kawase, Fukushima, JP;
Isamu Konishiikee, Kanagawa, JP;
Yukiko Iijima, Fukushima, JP;
Yukio Miyaki, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An anode, and a battery using the anode is provided. The anode has a structure in which an anode current collector, an anode active material layer and a protective layer are laminated in this order. The anode active material layer includes Sn, and is alloyed with the anode current collector in at least a portion of an interface with the anode current collector. The protective layer include an element constituting a simple substance with a higher melting point than Sn such as C, Si or W, and not forming a compound with Sn. Thereby, even if the anode wound into a roll is subjected to heat treatment, fusion bonding between adjacent anodes can be prevented.