Preparation of epsilon-phase silver vanadium oxide (SVO) from ypsilon-phase SVO starting material
    207.
    发明公开
    Preparation of epsilon-phase silver vanadium oxide (SVO) from ypsilon-phase SVO starting material 有权
    Herstellung eines epsilon-phasigen Silber-Vanadiumoxids(SVO)aus einem gamma-phasigen SVO-Material

    公开(公告)号:EP1215175A1

    公开(公告)日:2002-06-19

    申请号:EP01310404.7

    申请日:2001-12-12

    IPC分类号: C01G31/00 H01M4/48

    摘要: The current invention relates to the preparation of an improved cathode active material for non-aqueous lithium electrochemical cell. In particular, the cathode active material comprises ε-phase silver vanadium oxide prepared by using a γ-phase silver vanadium oxide starting material. The reaction of γ-phase SVO with a silver salt produces the novel ε-phase SVO possessing a lower surface area than ε-phase SVO produced from vanadium oxide (V 2 O 5 ) and a similar silver salt as starting materials. Consequently, the low surface area ε-phase SVO material provides an advantage in greater long term stability in pulse dischargeable cells.

    摘要翻译: 本发明涉及用于非水锂电化学电池的改进的阴极活性材料的制备。 特别地,阴极活性材料包括通过使用γ相银钒氧化物起始材料制备的ε相银银氧化钒。 γ相SVO与银盐的反应产生具有比由氧化钒(V2O5)和类似的银盐作为起始材料产生的ε相SVO更低的表面积的新型ε-相SVO。 因此,低表面积ε相SVO材料在脉冲可放电电池的更长的长期稳定性方面提供了优点。