Electrochemical cells comprising composite cathodes, and processes for fabricating same
    3.
    发明公开
    Electrochemical cells comprising composite cathodes, and processes for fabricating same 失效
    Komposit-Kathoden enthaltende elektrochemische Zellen und Herstellungsverfahren

    公开(公告)号:EP1162677A2

    公开(公告)日:2001-12-12

    申请号:EP01109141.0

    申请日:1997-05-21

    IPC分类号: H01M4/60 H01M4/58 H01M4/36

    摘要: The present invention pertains to battery cells comprising: (a) an anode; (b) a composite cathode comprising a mixture of (i) an electroactive sulfur containing cathode material comprising one or more materials selected from the group consisting elemental sulfur, organo sulfur and carbon-sulfur compositions, and derivatives or combinations thereof; and (ii) an electrically conductive additive; (c) a liquid electrolyte comprising a solvent for at least some anionic reduction products of said cathode; and, (d) a separator interposed between said composite cathode and said anode; wherein said battery cell is characterized by a total thickness of the sum of the composite cathode thickness and the separator thickness of up to about 125 micrometers. The present invention also pertains to methods of making such cells. The battery cell attains a high specific capacity (mAh/g) over a number of cycles.

    摘要翻译: 本发明涉及电池单元,包括:(a)阳极; (b)复合阴极,其包含(i)包含一种或多种选自元素硫,有机硫和碳 - 硫组合物的材料的电活性含硫阴极材料及其衍生物或组合的混合物; 和(ii)导电添加剂; (c)包含用于所述阴极的至少一些阴离子还原产物的溶剂的液体电解质; 和(d)介于所述复合阴极和所述阳极之间的隔膜; 其中所述电池单元的特征在于复合阴极厚度和隔板厚度之和的总厚度高达约125微米。 本发明还涉及制造这种细胞的方法。 电池单元在多个周期内达到较高的比容量(mAh / g)。

    ELECTROLYTE MATERIALS CONTAINING HIGHLY DISSOCIATED METAL ION SALTS
    7.
    发明公开
    ELECTROLYTE MATERIALS CONTAINING HIGHLY DISSOCIATED METAL ION SALTS 失效
    含有高离解金属离子盐的电解质材料

    公开(公告)号:EP0830709A1

    公开(公告)日:1998-03-25

    申请号:EP96910529.0

    申请日:1996-03-15

    摘要: The present invention relates to metal ion salts which can be used in electrolytes for producing electrochemical devices, including both primary and secondary batteries, photoelectrochemical cells and electrochromic displays. The salts have a low energy of dissociation and may be dissolved in a suitable polymer to produce a polymer solid electrolyte or in a polar aprotic liquid solvent to produce a liquid electrolyte. The anion of the salts may be covalently attached to polymer backbones to produce polymer solid electrolytes with exclusive cation conductivity.

    摘要翻译: 本发明涉及可用于电解质生产电化学装置的金属离子盐,包括一次电池和二次电池,光电化学电池和电致变色显示器。 这些盐具有低解离能,并且可以溶解在合适的聚合物中以产生聚合物固体电解质或溶解在极性非质子液体溶剂中以产生液体电解质。 盐的阴离子可以共价连接到聚合物主链以产生具有独特阳离子电导率的聚合物固体电解质。