PROCEDE DE PREPARATION D'UN OXYDE DE LITHIUM ET DE VANADIUM DU TYPE LI(1+A)V3O8
    4.
    发明公开
    PROCEDE DE PREPARATION D'UN OXYDE DE LITHIUM ET DE VANADIUM DU TYPE LI(1+A)V3O8 有权
    VERFAHREN ZUR HERSTELLUNG EINES LITHIUM-VANADIUM-OXIDS DES TYPS LI(1 + A)V3O8

    公开(公告)号:EP1718567A2

    公开(公告)日:2006-11-08

    申请号:EP05717638.0

    申请日:2005-02-16

    IPC分类号: C01G31/00

    摘要: The invention relates to a method for preparing a lithium and vanadium oxide and the thus obtained products consisting in preparing a precursor gel by reacting hydrogen peroxide with V2O5-α in an aqueous medium in the presence of a lithium precursor and in exposing said gel to a heat treatment in an oxidant atmosphere at a temperature ranging from 260 °C to 580 °C. A compound of a formula Li1+α V3O8, (0,1=α= 0,25) consists of needle-shaped grains having a bimodal distribution, wherein the length (L) of the first distribution needles ranges from 10 to 50 νm and the length (L) of the second distribution needles ranges from 1 to 10 νm. When l is the grain width, L the length and e the thickness thereof, said dimensions are such as 4

    摘要翻译: 含有呈双峰分布的针状晶粒的锂钒氧化物复合物(I)是新的。 式Li 1 +αV 3 O 8(其中α大于0.1且小于0.25)的钒钒络合物(I),其包含呈现双峰分布的针形式的晶粒(其中针的第一种模式的长度为10 -50微米,针的长度为1-50微米,长宽比和长度比大于4,小于100),是新的。 还包括:(1)(I)的准备; (2)锂电池用正极(A),其包含(I)作为活性物质; 和(3)包含(A)和由电解质分离的负极的电池,所述电解质在溶剂中包含锂盐溶液。