Title:
非水電解質二次電池用負極材料及びその製造方法
Document Type and Number:
Japanese Patent JP5061458
Kind Code:
B2
Abstract:
A negative electrode material for a non-aqueous electrolyte secondary battery comprising an alloy including silicon and a transition metal selected from the group consisting of titanium, zirconium, vanadium, molybdenum, tungsten, iron, and nickel; and a silicon oxide film and an oxide film of the transition metal formed on a surface of the alloy wherein the alloy includes an A phase including silicon and a B phase including a crystalline alloy of silicon and the transition metal. The negative electrode material has a silicon oxide film and an oxide film of the transition metal on the surface of the alloy wherein the thickness ratio of the transition metal oxide film to the silicon oxide film is at least 0.44 and smaller than 1.
Inventors:
Teruaki Yamamoto
Masaki Hasegawa
Yasuhiko Mito
Masaki Hasegawa
Yasuhiko Mito
Application Number:
JP2005364601A
Publication Date:
October 31, 2012
Filing Date:
December 19, 2005
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H01M4/38; B22F1/16; B22F5/00; H01M4/02; H01M4/36; H01M10/05
Domestic Patent References:
| JP2005116509A | ||||
| JP2004185810A | ||||
| JP2001250540A | ||||
| JP2006066370A |
Attorney, Agent or Firm:
Hiroki Naito
Daisuke Nagano
Kentaro Fujii
Daisuke Nagano
Kentaro Fujii