Si ALLOY NEGATIVE ELECTRODE ACTIVE MATERIAL FOR ELECTRICAL DEVICE

Title:

Si ALLOY NEGATIVE ELECTRODE ACTIVE MATERIAL FOR ELECTRICAL DEVICE

Document Type and Number:

WIPO Patent Application WO/2011/065504

Kind Code:

A1

Abstract:

Disclosed is a negative electrode active material for an electrical device, which exhibits well balanced characteristics. Namely, the negative electrode active material for an electrical device has high initial capacity, while maintaining high cycle characteristics. Specifically disclosed is a negative electrode active material for an electrical device, which contains an alloy that has a compositional formula: SixZnyAlz (wherein x, y and z respectively represent percentages by mass of respective elements and satisfy (1) x + y + z = 100, (2) 21 ≤ x < 100, (3) 0 < y < 79 and (4) 0 < z < 79).

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Inventors:

WATANABE MANABU
TANAKA OSAMU
MIYAMOTO TAKASHI

Application Number:

PCT/JP2010/071169

Publication Date:

June 03, 2011

Filing Date:

November 26, 2010

Export Citation:

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Assignee:

NISSAN MOTOR (JP)
WATANABE MANABU
TANAKA OSAMU
MIYAMOTO TAKASHI

International Classes:

H01M4/38; C22C18/00; C22C18/04; C22C21/02; C22C21/10; C22C30/06

Foreign References:

JP2004311429A	2004-11-04
JPS6089069A	1985-05-18
JP2003208893A	2003-07-25
JP2009517850A	2009-04-30

Other References:

M.D.FLEISCHAUER ET AL.: "Al-Si Thin-Film Negative Electrodes for Li-Ion Batteries", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 155, no. 11, 2008, pages A851 - A854, XP008154715
See also references of EP 2506348A4

Attorney, Agent or Firm:

HATTA & ASSOCIATES (JP)
Hatta international patent business corporation (JP)

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