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    • 4. 发明授权
    • Non-aqueous electrolyte secondary battery having heat-resistant electrodes
    • 具有耐热电极的非水电解质二次电池
    • US06489062B1
    • 2002-12-03
    • US09465078
    • 1999-12-16
    • Shunji WatanabeShinichi TakasugiHideharu OnoderaToyoo HaradaTsugio Sakai
    • Shunji WatanabeShinichi TakasugiHideharu OnoderaToyoo HaradaTsugio Sakai
    • H01M440
    • H01M4/131H01M2/0413H01M2/16H01M4/485H01M6/166H01M10/0525H01M2004/027
    • A non-aqueous electrolyte secondary battery capable of withstanding a reflow temperature has a positive electrode having a conductive material, a binder, and an electrode active material selected from the group consisting of LiCoO2, LiNiO2 and LiMn2O4. A negative electrode has a conductive material, a binder and an electrode active material selected from the group consisting of a titanium oxide having an anatase structure, lithium titanate having a spinel structure and a molybdenum oxide. An electrolyte has a supporting salt and a non-aqueous solvent having a boiling point greater than 200° C. A gasket is comprised of a material having a heat deformation temperature greater than 230° C. A separator is disposed between the positive electrode and the negative electrode and is comprised of a material having a heat deformation temperature greater than 230° C. At least one of the positive electrode and the negative electrode comprises an electrode heat-treated to a temperature of 250° C. to 450° C. for deactivating a thermally active portion of each of the conductive material, the binder and the electrode active material thereof.
    • 能够承受回流温度的非水电解质二次电池具有选自LiCoO 2,LiNiO 2和LiMn 2 O 4的导电材料,粘合剂和电极活性物质的正极。 负极具有导电材料,粘合剂和选自具有锐钛矿结构的氧化钛,具有尖晶石结构的钛酸锂和氧化钼的电极活性材料。 电解质具有支撑盐和沸点大于200℃的非水溶剂。垫片由热变形温度大于230℃的材料构成。隔板设置在正极和 负极,并且由热变形温度大于230℃的材料构成。正极和负极中的至少一个包括热处理至250℃至450℃的电极,用于 使导电材料,粘合剂及其电极活性物质的热活性部分失活。