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    • 2. 发明专利
    • Method of preparing a negative electrode
    • 空值
    • JP3461698B2
    • 2003-10-27
    • JP27650297
    • 1997-09-24
    • 日本電信電話株式会社松下電池工業株式会社
    • 修司 堤準一 山木純一 山浦景一 斎藤庸司 櫻井尊久 正代繁雄 近藤正樹 長谷川
    • H01M10/05H01M4/136H01M4/1397H01M4/58H01M4/62H01M4/04H01M4/02
    • Y02E60/122Y02P70/54
    • PROBLEM TO BE SOLVED: To provide the manufacture of a negative electrode and a lithium secondary cell which is high in energy density, high in charging/discharging capacity, and is provided with cell characteristics giving a long cyclic life to the cell. SOLUTION: In this manufacture, negative electrode mix composed of negative electrode active material, conductive material, and of binding material, is distributed into organic solvent so as to be coated over a negative electrode current collector, so that a negative electrode is thereby manufactured. In this case, the negative electrode which is primarily lithium contained transition metallic nitride, and is manufactured by means of a manufacturing process where the aforesaid organic solvent is at least to be one kind out of an alphatic hydrogen carbide group and an aromatic hydrogen carbide group, is used for a lithium secondary cell. By this constitution, there occurs no reaction among the negative electrode active material, the organic solvent and the binding material, and since they are sufficiently combined with one another, deterioration in the quality of material such as the formation of irreverseible material and the like will hardly be seen, and since the negative electrode will never be peeled off and so on, a very long cyclic life can thereby be obtained.
    • 要解决的问题:为了提供能量密度高,充电/放电容量高的负极和锂二次电池的制造,并且具有给电池长周期的电池特性。 解决方案:在该制造中,由负极活性物质,导电材料和粘结材料构成的负极混合物分散在有机溶剂中,以涂覆在负极集电体上,从而制造负极。 在这种情况下,主要是锂的负极含有过渡金属氮化物,并且是通过制造方法制造的,其中上述有机溶剂至少是从碳氢化合物基团和芳族碳氢化合物基团中的一种 ,用于锂二次电池。 通过这种结构,负极活性物质,有机溶剂和粘合材料之间不会发生反应,并且由于它们彼此充分组合,因此诸如形成不可消耗材料等材料的质量劣化将会 几乎看不到,由于负极不会被剥离等,从而可以获得非常长的循环寿命。