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    POLYMER COMPOSITE MEMBRANE AND PREPARATION METHOD THEREOF, GEL ELECTROLYTE AND LITHIUM ION BATTERY HAVING THE SAME
    3.
    发明申请
    POLYMER COMPOSITE MEMBRANE AND PREPARATION METHOD THEREOF, GEL ELECTROLYTE AND LITHIUM ION BATTERY HAVING THE SAME 审中-公开
    聚合物复合膜及其制备方法，其凝胶电解质和锂离子电池

    公开(公告)号：WO2016165633A1

    公开(公告)日：2016-10-20

    申请号：PCT/CN2016/079326

    申请日：2016-04-14

    Applicant: BYD COMPANY LIMITED

    Inventor： JIN, Lina ,  HU, Jialing ,  SHAN, Jun ,  HE, Long

    IPC: H01M2/16 ,  H01M2/14

    CPC classification number: H01M2/145 ,  D01D5/0084 ,  D01F6/12 ,  D01F6/32 ,  H01M2/166 ,  H01M2/1666 ,  H01M2/1686 ,  H01M10/0525

    Abstract: A method of preparing a polymer composite membrane is provided, and includes: providing a separator, providing a spinning solution comprising a mixed solvent and a spinning polymer dissolved in the mixed solvent, the mixed solvent comprising a first solvent having a boiling point ranging from about 150 ℃ to about 170 ℃, and a second solvent having a boiling point ranging from about 175 ℃ to about 220 ℃, a mass ratio of the first solvent and the second solvent ranging from about 7: 3 to about 3: 7; and electrostatic spinning on the separator with the spinning solution to obtain the polymer composite membrane having a separator and a fiber layer coated on the separator. A polymer composite membrane obtained from the method, a gel electrolyte including the polymer composite membrane and a lithium battery including the gel electrolyte are also provided.

    Abstract translation: 提供一种制备聚合物复合膜的方法，包括：提供分离器，提供包含溶解在混合溶剂中的混合溶剂和纺丝聚合物的纺丝溶液，所述混合溶剂包含沸点范围为约 150℃至约170℃，沸点范围为约175℃至约220℃的第二溶剂，第一溶剂和第二溶剂的质量比为约7:3至约3:7; 并用纺丝溶液在隔膜上静电纺丝，得到具有隔离物的聚合物复合膜和涂布在隔膜上的纤维层。 还提供了由该方法获得的聚合物复合膜，包含聚合物复合膜的凝胶电解质和包含凝胶电解质的锂电池。

    POLYMER COMPOSITE FILM AND PREPARATION METHOD THEREFOR AND LITHIUM ION BATTERY COMPRISING SAME
    4.
    发明公开
    POLYMER COMPOSITE FILM AND PREPARATION METHOD THEREFOR AND LITHIUM ION BATTERY COMPRISING SAME 审中-公开

    公开(公告)号：EP3493298A1

    公开(公告)日：2019-06-05

    申请号：EP17845207.4

    申请日：2017-08-14

    Applicant: BYD Company Limited

    Inventor： HU, Jialing ,  SHAN, Jun ,  HU, Gang ,  HE, Long

    IPC: H01M2/16 ,  H01M2/14 ,  H01M10/052

    Abstract: The disclosure provides a polymer composite membrane, a method for preparing same, and a lithium-ion battery including same. The polymer composite membrane includes a polymer base membrane, where the polymer base membrane includes a first surface and a second surface disposed opposite to each other, and the polymer composite membrane further includes a first ceramic layer, a first heat-resistant fiber layer, and a first bonding layer disposed sequentially from inside out on the first surface of the polymer base membrane, where materials of the first heat-resistant fiber layer contain a first polymeric material and a second polymeric material.

    BATTERY SEPARATOR AND LITHIUM ION BATTERY AND PREPARATION METHOD OF SAME
    6.
    发明公开
    BATTERY SEPARATOR AND LITHIUM ION BATTERY AND PREPARATION METHOD OF SAME 审中-公开

    公开(公告)号：EP3490032A1

    公开(公告)日：2019-05-29

    申请号：EP17845213.2

    申请日：2017-08-15

    Applicant: BYD Company Limited

    Inventor： JIN, Lina ,  SHAN, Jun ,  HU, Gang ,  HE, Long

    IPC: H01M2/14

    Abstract: The present disclosure relates to the field of lithium-ion batteries, and discloses a battery separator and a lithium-ion battery, and preparation methods thereof. The battery separator includes a porous base membrane and a bonding layer attached to at least one side surface of the porous base membrane, wherein the bonding layer contains an acrylate crosslinked polymer and a styrene-acrylate crosslinked copolymer and/or a vinylidene fluoride-hexafluoropropylene copolymer, and the porosity of the bonding layer is 40-65%.

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