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    • 2. 发明授权
    • Secondary battery and method for producing the same
    • 二次电池及其制造方法
    • US07402184B2
    • 2008-07-22
    • US11655164
    • 2007-01-19
    • Shigeo IkutaYusuke Fukumoto
    • Shigeo IkutaYusuke Fukumoto
    • H01M2/16H01M10/04
    • H01M4/24H01M2/164H01M4/02H01M4/04H01M4/131H01M4/133H01M4/48H01M10/04H01M10/052H01M10/0525H01M10/24H01M2004/021Y10T29/49115
    • In a secondary battery including a positive electrode, a negative electrode and a porous film bonded to the surface of at least one of the positive electrode and the negative electrode, the porous film includes ceramic particles and a binder, and the ceramic particles include polycrystalline particles obtained by mechanically crushing a fired material comprising a ceramic that is directly synthesized from a ceramic precursor. The porous film has a porosity of 40 to 80%, for example. The porous film can be formed by a method including the steps of: obtaining a fired material comprising a ceramic from a ceramic precursor; obtaining ceramic particles by mechanically crushing the fired material of the ceramic; obtaining a slurry including the ceramic particles and a binder; and applying the slurry onto the surface of an electrode, followed by drying.
    • 在包含正极,负极和与正极和负极中的至少一个的表面接合的多孔膜的二次电池中,多孔膜包括陶瓷颗粒和粘合剂,陶瓷颗粒包括多晶颗粒 通过机械粉碎包含由陶瓷前体直接合成的陶瓷的烧制材料获得。 多孔膜的孔隙率例如为40〜80%。 多孔膜可以通过以下方法形成:包括以下步骤:从陶瓷前体获得包含陶瓷的烧制材料; 通过机械破碎陶瓷烧制材料获得陶瓷颗粒; 得到包含陶瓷颗粒和粘合剂的浆料; 并将浆料施加到电极的表面上,然后干燥。