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    • 4. 发明授权
    • Composite treatment with LiPO3
    • 用LiPO3复合处理
    • US06492061B1
    • 2002-12-10
    • US09544134
    • 2000-04-06
    • Michel GauthierSimon BesnerMichel ArmandJean-François MagnanPierre Hovington
    • Michel GauthierSimon BesnerMichel ArmandJean-François MagnanPierre Hovington
    • H01M462
    • H01M10/0565H01M4/364H01M4/485H01M4/62H01M4/622H01M10/052
    • The present invention concerns a lithium electrochemical generator including at least one composite electrode comprising an active material and a first and second solid electrolytes non-homogeneously distributed into the composite. The first solid electrolyte is of mineral nature, vitreous or partly vitreous, and is a specific conductor of lithium ions, and is preferably localized on the surface of the particles of active materials of the electrode. The second solid electrolyte is organic, comprises a dry or gelified polymer electrolyte conducting ions surrounding the dispersed solid phases and acts as a deformable binder, preferably elastomeritically, of the composite in contact also with the collector and the separator electrolyte of the generator. A thin layer of the first electrolyte wets and coats at least a part of the surface of the active material particles to protect the coated surface of passivation or degradation reactions induced by the second electrolyte, and to maintain a good quality of ionic and electronic exchanges between the active material of the electrode and the other components of the composite, the first electrolyte being impermeable to the components of the second electrolyte.
    • 本发明涉及一种锂电化学发生器,其包括至少一个复合电极,该复合电极包括活性材料和非均匀分布于复合材料中的第一和第二固体电解质。 第一固体电解质具有矿物性质,玻璃状或部分玻璃质,并且是锂离子的特定导体,并且优选位于电极的活性材料颗粒的表面上。 第二固体电解质是有机的,包括干燥或凝胶化的聚合物电解质,其传导围绕分散的固相的离子,并且作为复合材料的可变形粘合剂,优选地弹性体地与发生器的收集器和分离器电解质接触。 第一电解质的薄层润湿并涂覆活性材料颗粒表面的至少一部分,以保护涂覆的表面由第二电解质引起的钝化或降解反应,并保持良好的离子和电子交换质量 电极的活性材料和复合材料的其它组分,第一电解质不能渗透到第二电解质的组分。