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. 23, 2016
Filed:
Jan. 20, 2005
Isamu Konishiike, Fukushima, JP;
Kensuke Yamamoto, Fukushima, JP;
Tomoo Takada, Fukushima, JP;
Yukiko Iijima, Fukushima, JP;
Kenichi Kawase, Fukushima, JP;
Yukio Miyaki, Kanagawa, JP;
Isamu Konishiike, Fukushima, JP;
Kensuke Yamamoto, Fukushima, JP;
Tomoo Takada, Fukushima, JP;
Yukiko Iijima, Fukushima, JP;
Kenichi Kawase, Fukushima, JP;
Yukio Miyaki, Kanagawa, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
Provided are an anode capable of preventing an increase in impedance and variations in characteristics and a battery using the anode. An anode active material layer includes at least one kind selected from the group consisting of simple substances, alloys and compounds of silicon and the like capable of forming an alloy with Li. The anode active material layer is formed by a vapor-phase deposition method or the like, and is alloyed with an anode current collector. A coating including lithium carbonate is formed on at least a part of a surface of the anode current collector. Thereby, an increase in impedance can be prevented. Moreover, the anode is less subject to an influence by a difference in a handling environment or storage conditions, so variations in impedance can be prevented.