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401 条记录 (耗时 0.018 秒)

    SEPARATOR FOR POWER STORAGE DEVICE, AND POWER STORAGE DEVICE
    16.
    发明公开
    SEPARATOR FOR POWER STORAGE DEVICE, AND POWER STORAGE DEVICE 审中-公开

    公开(公告)号：EP4216248A1

    公开(公告)日：2023-07-26

    申请号：EP21869427.1

    申请日：2021-09-16

    申请人： Asahi Kasei Kabushiki Kaisha

    发明人： HAMASAKI, Shinya ,  TAKAHASHI, Masaki ,  TAGAWA, Tomoya ,  SAITO, Mitsuko

    IPC分类号： H01G11/06 ,  H01G11/52 ,  H01M50/409

    摘要： Provided are a thin-film separator for a power storage device, the separator having high strength and reduced clogging, and a power storage device separator that provides high strength, high level of safety, and high dimensional stability at high temperature, and that can be formed in a thin film. One aspect provides a power storage device separator comprising a fine-porous layer (X) consisting mainly of polyolefin (A), the fine-porous layer (X) having a melt flow rate of less than or equal to 0.9 g/10 min, and having an average long-hole diameter of more than or equal to 100 nm according to MD-TD surface observation or ND-MD cross-sectional observation with a scanning electron microscope. One aspect provides a power storage device separator comprising a fine-porous layer, the fine-porous layer comprising a polyolefin having a melt flow rate of less than or equal to 0.7 g/10 min, the power storage device separator having a short temperature of more than or equal to 200°C and a thermal shrinkage of TD ≦ 1% and MD ≦ 4%.

    SEPARATOR FOR ELECTROCHEMICAL DEVICE AND PRODUCTION METHOD THEREFOR
    18.
    发明公开
    SEPARATOR FOR ELECTROCHEMICAL DEVICE AND PRODUCTION METHOD THEREFOR 审中-公开

    公开(公告)号：EP4106094A1

    公开(公告)日：2022-12-21

    申请号：EP21757951.5

    申请日：2021-02-19

    申请人： LG Energy Solution, Ltd.

    发明人： SHIN, Jin-Young ,  KA, Kyung-Ryun ,  LEE, Sang-Joon

    IPC分类号： H01M50/446 ,  H01M50/449 ,  H01M50/403 ,  H01G11/52

    摘要： The present disclosure relates to a separator for an electrochemical device which includes a porous separator substrate including a polymer material and a porous coating layer coated on at least one surface of the substrate, wherein the porous coating layer includes inorganic particles and a binder resin, the binder resin includes a mixture of polyvinyl acetate (PVAc) with an acrylic binder resin. The separator shows improved wettability with an electrolyte by virtue of relatively high polarity of PVAc. In addition, it is possible to improve the peel force between the separator substrate and the porous coating layer by introducing PVAc and to reduce the thickness of the porous coating layer. Therefore, when introducing the separator to a battery, it is possible to improve the resistance characteristics, and to inhibit the porous coating layer from being spaced apart from the separator substrate or to inhibit the inorganic particles from being detached from the porous coating layer. As a result, the separator has high heat resistance and shows a low shrinkage even under a high temperature condition. Further, it is possible to prevent contamination of a production line caused by the inorganic particles detached during the manufacture of the separator, since detachment of the inorganic particles is prevented.

    MULTILAYER BODY FOR ELECTROCHEMICAL ELEMENTS, AND ELECTROCHEMICAL ELEMENT
    19.
    发明公开
    MULTILAYER BODY FOR ELECTROCHEMICAL ELEMENTS, AND ELECTROCHEMICAL ELEMENT 审中-公开

    公开(公告)号：EP4106046A1

    公开(公告)日：2022-12-21

    申请号：EP21754521.9

    申请日：2021-02-01

    申请人： Zeon Corporation

    发明人： TAGUCHI Hiroyuki

    IPC分类号： H01M4/13 ,  H01G11/26 ,  H01G11/52 ,  H01M50/409

    摘要： Provided is a laminate for an electrochemical device that can advantageously be used as a device member having excellent low-temperature adhesiveness and blocking resistance. The laminate includes a functional layer containing heat-resistant fine particles and adhesive particles and a substrate. The adhesive particles contain an adhesive polymer that includes an aromatic vinyl monomer unit and a wax that has a melting point of lower than 95°C. In plan view of the laminate from a side corresponding to the functional layer, the functional layer includes an adhesion region formed of the adhesive particles and a heat-resistant region formed of the heat-resistant fine particles. The volume-average particle diameter of the adhesive particles is larger than the average stacking direction height of the heat-resistant region.