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    • 38. 发明申请
    • LITHIUM-AIR BATTERY
    • 锂离子电池
    • US20140023940A1
    • 2014-01-23
    • US13991269
    • 2011-11-28
    • Karim ZaghibJulie TrottierAbdelbast Guerfi
    • Karim ZaghibJulie TrottierAbdelbast Guerfi
    • H01M12/08
    • H01M12/08H01M4/134H01M4/1395H01M4/366H01M4/382H01M4/405H01M4/5815H01M10/0569H01M12/06Y02E60/128
    • The invention relates to an improved lithium-air battery. The battery includes a negative electrode and a positive electrode separated by an electrolyte, wherein the negative electrode consists of a film of metal material selected from among lithium and lithium alloys, the positive electrode includes a film of a porous carbon material on a current collector, and the electrolyte is a solution of lithium salts in a solvent. The battery is characterized in that the surface of the negative electrode opposite the electrolyte has a passivation layer containing Li2S, Li2S2O4, Li2O, and Li2CO3, the passivation layer being richer in sulfur compound on the surface thereof that is in contact with the electrolyte. The battery is obtained by means of a method consisting of producing the positive electrode, the electrolyte, and a film of the metal material for forming the negative electrode, and assembling the positive electrode, the electrolyte, and the film of metal material. The method is characterized in that it includes a step of subjecting the film of metal material to a gaseous atmosphere containing SO2, before or after the assembly thereof with the positive electrode and the electrolyte.
    • 本发明涉及一种改进的锂空气电池。 电池包括由电解质分离的负极和正极,其中负极由选自锂和锂合金的金属材料膜构成,正极包括集电体上的多孔碳材料膜, 并且电解质是锂盐在溶剂中的溶液。 电池的特征在于,与电解质相对的负极表面具有含有Li 2 S,Li 2 S 2 O 4,Li 2 O和Li 2 CO 3的钝化层,钝化层在与电解质接触的表面上富含硫化合物。 电池通过由正极,电解质和用于形成负极的金属材料的膜制成的方法得到,并且组装正极,电解质和金属材料膜。 该方法的特征在于包括在与正极和电解质组装之前或之后使金属材料的膜经受含有SO 2的气态气氛的步骤。