| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an active material for forming an electrochemical element superior in discharge capacity and rate characteristics. <P>SOLUTION: The active material 2 includes compound particles 4 which include a compound having a composition as expressed by a chemical formula (1): Li<SB>a</SB>MXO<SB>4</SB>, a carbon layer 6 to cover the compound particles 4, and carbon particles 8. In the chemical formula (1), a satisfies 0.9≤a≤2, M expresses one selected from a group of Fe, Mn, Co, Ni, and VO, and X expresses one selected from a group of P, Si, S, V, and Ti. <P>COPYRIGHT: (C)2010,JPO&INPIT |
