Title:
NEGATIVE ELECTRODE ACTIVE MATERIAL FOR ELECTRICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/099441
Kind Code:
A1
Abstract:
This negative electrode active material for an electrical device comprises an alloy that contains constituents in the following ranges, by mass ratio: 35% ≤ Si ≤ 78%, 7% ≤ Sn ≤ 30%, and 0% < Ti ≤ 37%, and/or 35% ≤ Si ≤ 52%, 30% ≤ Sn ≤ 51%, 0% < Ti ≤ 35%; with the remainder being unavoidable impurities. This negative electrode active material can be obtained through the use of a multicomponent direct-current magnetron sputtering device with, for instance, silicon, tin, and titanium as targets. An electrical device to which this negative electrode active material is applied can maintain a high discharge capacity while exhibiting excellent cycle characteristics.
Inventors:
WATANABE MANABU (JP)
TANAKA OSAMU (JP)
YOSHIDA MASAO (JP)
TANAKA OSAMU (JP)
YOSHIDA MASAO (JP)
Application Number:
PCT/JP2012/078602
Publication Date:
July 04, 2013
Filing Date:
November 05, 2012
Export Citation:
Assignee:
NISSAN MOTOR (JP)
International Classes:
H01M4/38; C01G23/00; C22C13/00; C22C30/04; C23C14/14
Foreign References:
| JP2004311429A | 2004-11-04 | |||
| JP2007026926A | 2007-02-01 | |||
| JP2007026805A | 2007-02-01 | |||
| JP2004311429A | 2004-11-04 |
Other References:
See also references of EP 2800176A4
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (JP)
Hidekazu Miyoshi (JP)
Hidekazu Miyoshi (JP)
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Claims: