| 摘要 |
Preparation of composite materials containing alkali, alkaline earth and transition metals and non-metals including oxygen, nitrogen and fluorine. The composite material comprises an active electrode compound of formula A aD dM mZ zO oN nF f in which : A is an alkali metal ; D is an alkaline earth metal or metal from group III(excluding B) ; M is a transition metal or mixture of transition metals ; Z is a non metal from S, Se, P, As, Si, Ge, Sn or B ; O is oxygen, N is nitrogen and F is fluorine. a, d, m, z, o, n and f are greater or equal to 0 and chosen to maintain electroneutrality ; - and an electronic conductor such as carbon. In the preparation, a homogeneous precursor containing all the elements A, D, M, Z, O, N and F , forming the active electrode compound, and one or more organic and/or organometallic compounds are decomposed thermally for a short period to produce the composite material. |
