Organic cyclic carbonate additives for nonaqueous electrolyte in alkali metal electrochemical cells
    3.
    发明公开
    Organic cyclic carbonate additives for nonaqueous electrolyte in alkali metal electrochemical cells 有权
    有机环状碳酸酯,如碱金属的电化学电池的非水电解质中的添加剂

    公开(公告)号:EP1339121A2

    公开(公告)日:2003-08-27

    申请号:EP03251016.6

    申请日:2003-02-19

    IPC分类号: H01M6/16 H01M10/40

    摘要: A lithium electrochemical cell of either a primary or a secondary chemistry activated with an electrolyte having a cyclic carbonate of a ring size equal to or larger than a six-member ring is described. The cyclic carbonate helps to make the anode passivation film ionically conductive to thereby eliminate voltage delay during pulse discharge and to reduce Rdc. Such a cell is particularly well suited for powering an implantable medical device, such as a cardiac defibrillator.

    摘要翻译: 无论是伯或与电解质具有环的大小等于或大于一个六元环大的环状碳酸酯活化的二次化学的锂的电化学电池进行说明。 的环状碳酸酯有助于使阳极钝化膜离子导电,从而消除脉冲放电时电压延迟并降低RDC。 这样的细胞是特别适合于植入的医疗装置,检查作为心脏除颤器的供电。

    Cathode active material coated with a metal oxide for incorporation into a lithium electrochemical cell
    7.
    发明公开
    Cathode active material coated with a metal oxide for incorporation into a lithium electrochemical cell 审中-公开
    涂覆的阴极活性材料与用于安装的金属氧化物中的锂的电化学电池

    公开(公告)号:EP1331683A2

    公开(公告)日:2003-07-30

    申请号:EP03001616.6

    申请日:2003-01-24

    IPC分类号: H01M4/48

    摘要: An improved cathode material for nonaqueous electrolyte lithium electrochemical cell is described. The preferred active material is silver vanadium oxide (SVO) coated with a protective layer of an inert metal oxide (M x O y ) or lithiated metal oxide (Li x M y O z ). The SVO core provides high capacity and rate capability while the protective coating reduces reactivity of the active particles with electrolyte to improve the long-term stability of the cathode.

    摘要翻译: 用于非水电解质锂的电化学电池的改进的阴极材料进行说明。 优选的活性材料是涂覆有惰性的金属氧化物构成的保护层(M×○Y)或锂化的金属氧化物(LixMyOz)银钒氧化物(SVO)。 在SVO芯提供高容量和倍率性能,同时保护涂层减少与电解质中的活性颗粒的反应性,以提高阴极的长期稳定性。