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    • 9. 发明授权
    • Non-aqueous electrolyte secondary battery
    • 非水电解质二次电池
    • US08067120B2
    • 2011-11-29
    • US11689817
    • 2007-03-22
    • Masaki DeguchiTooru MatsuiHiroshi Yoshizawa
    • Masaki DeguchiTooru MatsuiHiroshi Yoshizawa
    • H01M6/16
    • H01M2/16H01M4/485H01M10/0569
    • The non-aqueous electrolyte secondary battery of the present invention includes a positive electrode containing a lithium-containing transition metal oxide as a positive electrode active material, a negative electrode, a separator interposed between the positive electrode and the negative electrode and a non-aqueous electrolyte. The non-aqueous electrolyte includes a non-aqueous solvent and a solute dissolved therein, and the non-aqueous solvent includes a solvent having an electron-withdrawing substituent. The solvent having an electron-withdrawing substituent includes at least one selected from the group consisting of a sulfonic solvent, a nitrile solvent, a ketonic solvent, a fluorine-containing solvent, a chlorine-containing solvent and a carboxylic acid ester solvent. The separator includes a material containing an electron-withdrawing substituent or an atom having an unshared electron pair.
    • 本发明的非水电解质二次电池包括含有含锂过渡金属氧化物作为正极活性物质的正极,负极,夹在正极和负极之间的隔膜和非水电解质二次电池 电解液 非水电解质包括非水溶剂和溶解于其中的溶质,非水溶剂包括具有吸电子取代基的溶剂。 具有吸电子取代基的溶剂包括选自磺酸溶剂,腈溶剂,酮溶剂,含氟溶剂,含氯溶剂和羧酸酯溶剂中的至少一种。 分离器包括含有吸电子取代基或具有非共享电子对的原子的材料。