To provide a negative electrode for an electrochemical element having large capacity and an excellent cycle property, and to provide an electrochemical element having large capacity and an excellent cycle property by using the negative electrode for the electrochemical element.
The negative electrode for the electrochemical element is structured by using a negative electrode active material made from a mixture of a composite element of metal that can be alloyed with lithium and carbonaceous material, and material including lithium. The electrochemical element is structured by using the negative electrode, a positive electrode, and a lithium ion conductive electrolyte. Preferably the composite element of the metal than can alloyed with lithium and the carbonaceous material has the maximum particle diameter that is not more than 50 μm, and concretely a composite element of silicon and carbonaceous material is preferable. Preferably the material including lithium is a lithium containing compound nitride expressed by a general formula LixMyNz such as Li2.6Co0.4N (in the formula, M is transition metal element, and x>0, y>0, z>0).
YOKOYAMA AKIMICHI
KIMACHI KIYONARI
AOYAMA SHIGEO
| JPH0878018A | 1996-03-22 | |||
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| JPH06279112A | 1994-10-04 | |||
| JPH05286763A | 1993-11-02 | |||
| JPH1197014A | 1999-04-09 | |||
| JPH103920A | 1998-01-06 | |||
| JP2001052699A | 2001-02-23 | |||
| JP2000215887A | 2000-08-04 | |||
| JP2000203818A | 2000-07-25 | |||
| JP2000260428A | 2000-09-22 |