Title:
ANODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, ANODE USING THE SAME, AND LITHIUM ION SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2012178299
Kind Code:
A
Abstract:
To provide an anode active material for a lithium ion secondary battery, which has high capacity and high charge/discharge efficiency and is excellent in cycle characteristics.
The anode active material for a lithium ion secondary battery is characterized in that: it is composed of particles consisting essentially of silicon and containing at least 0.05 mass% or more of an element A; and an atomic radius rA of the element A satisfies a relation of |(rA-r0)/r0|≤0.1 with respect to an atomic radius r0 of silicon. A lithium ion secondary battery anode and a lithium ion secondary battery contain the anode active material for a lithium ion secondary battery, as an anode active material.
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Inventors:
TANI TOSHIO
NISHIMURA TAKESHI
SHIMADA MICHIHIRO
ABE HIDETOSHI
KUBOTA MASAAKI
EGURO TAKASHI
NISHIMURA TAKESHI
SHIMADA MICHIHIRO
ABE HIDETOSHI
KUBOTA MASAAKI
EGURO TAKASHI
Application Number:
JP2011041271A
Publication Date:
September 13, 2012
Filing Date:
February 28, 2011
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD
FURUKAWA BATTERY CO LTD
FURUKAWA BATTERY CO LTD
International Classes:
H01M4/38; H01M4/13; H01M4/134; H01M4/136; H01M4/48; H01M4/58; H01M4/66; H01M4/70
Domestic Patent References:
| JP2010040231A | 2010-02-18 | |||
| JP2005235734A | 2005-09-02 | |||
| JP2009252579A | 2009-10-29 | |||
| JP2005011802A | 2005-01-13 | |||
| JP2010118330A | 2010-05-27 | |||
| JP2011187287A | 2011-09-22 | |||
| JP2010050667A | 2010-03-04 |
Attorney, Agent or Firm:
Seiichi Inoue