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    • 8. 发明申请
    • ALL SOLID-STATE SECONDARY BATTERY AND A PRODUCTION METHOD OF AN ALL SOLID-STATE SECONDARY BATTERY
    • 所有固态二次电池和所有固态二次电池的生产方法
    • US20130040206A1
    • 2013-02-14
    • US13581188
    • 2011-02-25
    • Naoki YoshidaNaoharu Yabuta
    • Naoki YoshidaNaoharu Yabuta
    • H01M10/0562H01M10/04H01M4/62
    • H01M10/052H01M2/145H01M2/1673H01M4/0404H01M4/622H01M10/0436H01M10/0562H01M10/0585Y02T10/7011
    • Disclosed are: an all solid state secondary battery wherein a solid electrolyte layer can be formed thin and the internal resistance is low; a method for manufacturing an all solid state secondary battery, by which an extremely thin solid electrolyte layer can be formed; and a method for manufacturing an all solid state secondary battery, by which application unevenness of a slurry composition for a solid electrolyte layer is reduced and the internal resistance can be lowered. Specifically disclosed is an all solid state secondary battery which comprises a positive electrode that has a positive electrode active material layer, a negative electrode that has a negative electrode active material layer, and a solid electrolyte layer that is arranged between the positive and negative electrode active material layers. The all solid state secondary battery is characterized in that: the thickness of the solid electrolyte layer is 1-15 μm; the solid electrolyte layer contains solid electrolyte particles (A) that have an average particle diameter of 1.5 μm or less; the solid electrolyte particles (A) have a cumulative 90% particle diameter of 2.5 μm or less; the positive electrode active material layer and the negative electrode active material layer contain solid electrolyte particles (B); and the average particle diameter of the solid electrolyte particles (B) is smaller than the average particle diameter of the solid electrolyte particles (A), with the difference being 0.3-2.0 μm (inclusive).
    • 公开了一种全固体二次电池,其中固体电解质层可以形成较薄并且内阻低; 一种全固态二次电池的制造方法,能够形成极薄的固体电解质层; 以及制造全固体二次电池的方法,由此减少固体电解质层的浆料组合物的应用不均匀性并降低内阻。 具体公开了一种全固体二次电池,其包括具有正极活性物质层的正极,具有负极活性物质层的负极和设置在正极和负极活性物质之间的固体电解质层 材料层。 全固态二次电池的特征在于:固体电解质层的厚度为1-15μm; 固体电解质层含有平均粒径为1.5μm以下的固体电解质粒子(A) 固体电解质颗粒(A)的累积90%粒径为2.5μm以下; 正极活性物质层和负极活性物质层含有固体电解质粒子(B)。 固体电解质粒子(B)的平均粒径小于固体电解质粒子(A)的平均粒径,其差为0.3〜2.0μm(含)。