High-energy, rechargeable, electrochemical cells with non-aqueous electrolytes
    3.
    发明授权
    High-energy, rechargeable, electrochemical cells with non-aqueous electrolytes 失效
    具有非水电解质的高能,可充电电化学电池

    公开(公告)号:US06316141B1

    公开(公告)日:2001-11-13

    申请号:US09419940

    申请日:1999-10-18

    IPC分类号: H01M604

    摘要: A non-aqueous electrolyte for use in an electrochemical cell comprising: (a) at least one organic solvent; (b) at least one electrolytically active salt represented by the formula: M′+m(ZRnXq−n)m in which: M′ is selected from a group consisting of magnesium, calcium, aluminum, lithium and sodium; Z is selected from a group consisting of aluminum, boron, phosphorus, antimony and arsenic; R represents radical selected from the following groups: alkyl, alkenyl, aryl, phenyl, benzyl, and amido; X is a halogen (I, Br, Cl, F); m=1-3; and n=0-5 and q=6 in the case of Z=phosphorus, antimony and arsenic, and n=0-3 and q=4 in the case of Z=aluminum and boron. Rechargeable, high energy density electrochemical cells containing an intercalation cathode, a metal anode, and an electrolyte of the above-described type are also disclosed.

    摘要翻译: 一种用于电化学电池的非水电解质,包括:(a)至少一种有机溶剂; (b)至少一种由下式表示的电解活性盐:其中:M'选自镁,钙,铝,锂和钠; Z选自铝,硼,磷,锑和砷; R表示选自以下基团的基团:烷基,烯基,芳基,苯基,苄基和酰氨基; X是卤素(I,Br,Cl,F); m = 1-3; 在Z =磷,锑和砷的情况下,n = 0-5且q = 6,在Z =铝和硼的情况下,n = 0-3和q = 4。 还公开了含有插层阴极,金属阳极和上述类型的电解质的可充电的高能量密度电化学电池。

    Polyvinyl mercaptan redox material for cathodes in non-aqueous batteries
    6.
    发明授权
    Polyvinyl mercaptan redox material for cathodes in non-aqueous batteries 失效
    用于非水电池阴极的聚乙烯硫醇氧化还原材料

    公开(公告)号:US06403255B1

    公开(公告)日:2002-06-11

    申请号:US09459478

    申请日:1999-12-13

    IPC分类号: H01M460

    摘要: A cathode material featuring PVM for use in rechargeable electrochemical cells. It has been discovered that the polymer backbone of PVM, which consists solely of carbon atoms, is not subject to scission during repeated charge-discharge cycles, such that the cathode material remains substantially insoluble in standard liquid electrolytes. As a result, cells containing PVM as the cathode material and liquid electrolyte are genuinely electrochemically reversible. The use of PVM overcomes the problems associated with organosulfides of the background art, with which dissolution of anions in the liquid electrolyte during discharging results in migration from the cathode and contamination of the anode/electrolyte surface and ultimately leads to degradation of the electrolyte and/or deterioration of the anode-electrolyte interface.

    摘要翻译: 一种用于可再充电电化学电池的PVM阴极材料。 已经发现,仅由碳原子组成的PVM的聚合物骨架在重复的充放电循环期间不会发生断裂,使得阴极材料基本上不溶于标准液体电解质。 结果,包含PVM作为阴极材料的电池和液体电解质真正地在电化学上是可逆的。 PVM的使用克服了背景技术中与有机硫化物有关的问题,阴离子在放电过程中溶解在液体电解质中会导致阴极迁移和阳极/电解质表面的污染,并最终导致电解质和/ 或阳极 - 电解质界面的劣化。