Title:
NEGATIVE ELECTRODE MATERIAL FOR SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME
Document Type and Number:
Japanese Patent JP2016225143
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a negative electrode material for a secondary battery, reducing and suppressing an expansion coefficient of a silicon-containing high-capacity alloy material and capable of achieving favorable charge/discharge cycle characteristics.SOLUTION: An alloy particle includes: one or two or more kinds of transition metals which are selected from a metal group belonging to transition metals and which have electron conductivity and hardly react with a lithium atom; and silicon. The alloy particle includes amorphous silicon and microcrystals of a silicide comprising the silicon and the transition metals, and has a structure in which microcrystals of a silicide are dotted in the amorphous silicon.SELECTED DRAWING: Figure 2
Inventors:
MATSUBARA KEIKO
IGARASHI YOSHIYUKI
IGARASHI YOSHIYUKI
Application Number:
JP2015110531A
Publication Date:
December 28, 2016
Filing Date:
May 29, 2015
Export Citation:
Assignee:
LG CHEMICAL LTD
International Classes:
H01M4/38; B22F1/00; B22F9/02; C22C45/00; H01M4/134; H01M4/36; H01M4/62
Domestic Patent References:
| JP2014107132A | 2014-06-09 | |||
| JP2010135336A | 2010-06-17 | |||
| JP2006164960A | 2006-06-22 | |||
| JP2007172858A | 2007-07-05 |
Attorney, Agent or Firm:
Takeshi Katata
Matsuno Chihiro
Matsuno Chihiro