NEGATIVE ELECTRODE FOR ELECTRICAL DEVICE AND ELECTRICAL DEVICE PROVIDED WITH SAME

Title:

NEGATIVE ELECTRODE FOR ELECTRICAL DEVICE AND ELECTRICAL DEVICE PROVIDED WITH SAME

Document Type and Number:

WIPO Patent Application WO/2014/080893

Kind Code:

A1

Abstract:

[Problem] To provide a negative electrode for an electrical device such as a lithium ion secondary battery that maintains high cycle characteristics, that has a high initial capacity, and that exhibits well-balanced characteristics. [Solution] A negative electrode for an electrical device comprising a current collector and an electrode layer that includes a negative electrode active material that is arranged on the surface of the current collector, a conductive auxiliary agent, and a binder. The negative electrode active material is produced by mixing an alloy represented by formula (1) (in formula (1), M is at least one metal selected from the group consisting of Ge, Sn, Zn, and combinations thereof, A is unavoidable impurities, x, y, z, and a represent mass% values, and on this occasion, 0 < x < 100, 0 < y < 100, 0 < z < 100, 0 ≤ a ≤ 0.5, and x + y + z + a = 100) with a carbon-based material.

Inventors:

WATANABE MANABU (JP)
MIKI FUMIHIRO (JP)
SANADA TAKASHI (JP)
CHIBA NOBUTAKA (JP)

Application Number:

PCT/JP2013/081144

Publication Date:

May 30, 2014

Filing Date:

November 19, 2013

Export Citation:

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Assignee:

NISSAN MOTOR (JP)

International Classes:

H01M4/133; C22C13/00; C22C14/00; C22C18/00; C22C28/00; H01M4/134; H01M4/36; H01M4/38

Domestic Patent References:

WO2011065503A1	2011-06-03
WO2012161190A1	2012-11-29
WO2013099441A1	2013-07-04

Foreign References:

JP2007305424A	2007-11-22
JP2010135336A	2010-06-17
JP2004185984A	2004-07-02
JP2003331826A	2003-11-21
JP2000299108A	2000-10-24
JP2013161785A	2013-08-19
JP2004349016A	2004-12-09
JP2009517850A	2009-04-30
JP2012185913A	2012-09-27

Other References: