Lithium copper oxide cathode for lithium cells and batteries
    143.
    发明授权
    Lithium copper oxide cathode for lithium cells and batteries 失效
    锂电池用锂铜氧阴极

    公开(公告)号:US5670277A

    公开(公告)日:1997-09-23

    申请号:US664092

    申请日:1996-06-13

    Abstract: The invention provides a rechargeable lithium battery which comprises an electrolyte; a negative electrode having a compatible active material; and a positive electrode comprising a lithium copper oxide intercalation compound. The positive electrode active material is characterized by an ability to deintercalate lithium ions for intercalation into the negative electrode active material. The lithium copper oxide has a proportion of 2 lithium ions per formula unit of the copper oxide and upon electrochemical interaction with a negative electrode deintercalates lithium ions whereupon the proportion of lithium ions per copper oxide formula unit is less than 2. The lithium copper oxide is a compound represented by the nominal general formula Li.sub.2 CuO.sub.2. The lithium copper oxide compound is alternatively represented by the nominal general formula Li.sub.2-x CuO.sub.2, signifying its capability to deintercalate lithium.

    Abstract translation: 本发明提供一种可充电锂电池,其包括电解质; 具有相容的活性物质的负极; 以及包含锂铜氧化物插层化合物的正极。 正极活性物质的特征在于将锂离子脱嵌插入负极活性物质中的能力。 锂二氧化铜每氧化铜的配方单位具有2个锂离子的比例,并且与负极的电化学相互作用脱去锂离子,因此每个氧化铜配方单元的锂离子的比例小于2.氧化铜锂是 由标称通式Li 2 CuO 2表示的化合物。 氧化锂铜化合物可替代地由标称通式Li 2-x Cu 2 O 2表示,表示其脱嵌锂的能力。

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