Title:
NEGATIVE-ELECTRODE ACTIVE MATERIAL FOR USE IN ELECTRICAL DEVICE AND ELECTRICAL DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2014/199783
Kind Code:
A1
Abstract:
This invention provides a negative-electrode active material, for use in an electrical device such as a lithium-ion secondary battery, that exhibits high cycle durability. Said negative-electrode active material for use in an electrical device contains an alloy that can be represented by chemical formula (1). (In chemical formula (1), M represents one or more metals selected from the group consisting of titanium, zinc, carbon, and combinations thereof; A represents unavoidable impurities; and x, y, z, and a represent mass percentages, with 0 < x < 100, 0 < y < 100, 0 < z < 100, 0 ≤ a < 0.5, and x+y+z+a = 100.) The D50 of secondary-particle diameters obtained by laser diffraction is greater than 0.01 µm but less than 20 µm.
Inventors:
KABURAGI TOMOHIRO (JP)
WATANABE MANABU (JP)
MIKI FUMIHIRO (JP)
CHIBA NOBUTAKA (JP)
WADA TOHRU (JP)
WATANABE MANABU (JP)
MIKI FUMIHIRO (JP)
CHIBA NOBUTAKA (JP)
WADA TOHRU (JP)
Application Number:
PCT/JP2014/063250
Publication Date:
December 18, 2014
Filing Date:
May 19, 2014
Export Citation:
Assignee:
NISSAN MOTOR (JP)
International Classes:
H01M4/38
Foreign References:
| JP2004349016A | 2004-12-09 | |||
| JP2004311429A | 2004-11-04 | |||
| JP2011192453A | 2011-09-29 |
Other References:
M. A. AL-MAGHRABI ET AL.: "A Combinatorial Study of the Sn-Si-C System for Li-Ion Battery Applications", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 159, no. ISSUE, pages A711 - A719
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
Hatta international patent business corporation (JP)
Hatta international patent business corporation (JP)
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