公开(公告)号：US20040166407A1

公开(公告)日：2004-08-26

申请号：US10773157

申请日：2004-02-09

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Junji Nakajima ,  Tsumoru Ohata ,  Takashi Takano ,  Kohei Suzuki ,  Tetsuya Hayashi

IPC: H01M004/62

CPC classification number: H01M2/1686 ,  H01M2/1646 ,  H01M2/1673 ,  H01M2/168 ,  H01M4/621 ,  H01M10/0525

Abstract: A lithium ion secondary battery comprising: a positive electrode, a negative electrode, a separator interposed between the positive and negative electrodes, and an electrolyte prepared by dissolving a lithium salt in a non-aqueous solvent, wherein the separator comprises a porous film layer containing basic solid particles and a composite binder, the porous film layer is adhered to at least one surface of at least one of the positive and negative electrodes, the composite binder comprises a primary binder and a secondary binder, the primary binder comprises polyether sulfone and the secondary binder comprises polyvinylpyrrolidone.

Abstract translation: 1.一种锂离子二次电池，其特征在于，包括：正极，负极，插入所述正极和负极之间的隔膜;以及通过将锂盐溶解在非水溶剂中而制备的电解质，其中所述隔膜包含含有 碱性固体颗粒和复合粘合剂，所述多孔膜层粘附到所述正极和负极中的至少一个的至少一个表面，所述复合粘合剂包括主粘合剂和次粘合剂，所述主粘合剂包括聚醚砜和 次级粘合剂包括聚乙烯吡咯烷酮。