Title:
リチウム二次電池用負極材料及びその製造方法、並びにリチウム二次電池用負極及びリチウム二次電池
Document Type and Number:
Japanese Patent JP5002824
Kind Code:
B1
Abstract:
[Object] The object is to provide a negative electrode material for a lithium secondary battery, wherein a sulfide-based negative electrode with water-resistant properties can exert excellent cycle characteristics and high output performance while maintaining a high discharge capacity and there is no precipitation of lithium dendrites during charge at low temperature. [Means for Solving Problems] A negative electrode material for a lithium secondary battery comprising sulfur and sulfide glass including the following components ( i ) and ( ii ):
( i ) at least one or more elements selected from a group consisting of Sb, As, Bi, Ge, Si, Cu, Zn, Pd, In and Zr; and
( ii ) at least one or more elements selected from a group consisting of Se, Te, Ga, Sn, Pb, Cd, Al, Fe, Mg, Ca, Co, Ag, Sr, P and Ba,
wherein the ratio of the above components is sulfur: 40-80 mol %, ( i ): 1-50 mol % and ( ii ): 1-50 mol %, respectively.
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Inventors:
Takashi Mukai
Taiji Sakamoto
Tetsuo Sakai
Kunihiko Tani
Naoto Yamashita
Koichiro Ikeda
Taiji Sakamoto
Tetsuo Sakai
Kunihiko Tani
Naoto Yamashita
Koichiro Ikeda
Application Number:
JP2011100039A
Publication Date:
August 15, 2012
Filing Date:
April 27, 2011
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
Isuzu Seiko Glass Co., Ltd.
Isuzu Seiko Glass Co., Ltd.
International Classes:
H01M4/136; H01M4/1397; H01M4/36; H01M4/58; H01M4/62
Domestic Patent References:
| JP2008270137A | 2008-11-06 | |||
| JP2008103282A | 2008-05-01 | |||
| JP2003059492A | 2003-02-28 |
Attorney, Agent or Firm:
Kazuhiro Kiyohara