Ultrathin Foil Transferring and Processing Method Capable of Reducing Curling of Ultrathin Foil and Preventing Folding Thereof

    公开(公告)号:US20210151738A1

    公开(公告)日:2021-05-20

    申请号:US17047540

    申请日:2019-10-01

    Applicant: LG Chem, Ltd.

    Abstract: The present invention relates to an ultrathin foil transferring and processing process for reducing curling and preventing folding of an ultrathin foil which may occur in the ultrathin foil transferring and processing process, and comprises: a step of coating or mounting an electrostatic-inducing material on both ends of a roll to form a charging part; a charging step of rubbing an ultrathin foil and the roll during the transferring and rolling of the ultrathin foil, to charge both ends of the ultrathin foil and the roll with positive or negative charges; and an electrostatic force applying step in which an electrostatic force is applied to both ends of the ultrathin foil simultaneously with or after the charging step and thus the curling of the ultrathin foil is reduced.

    Pouch-shaped Battery Case Comprising Heat Dissipation Layer

    公开(公告)号:US20200280112A1

    公开(公告)日:2020-09-03

    申请号:US16478680

    申请日:2018-07-02

    Applicant: LG Chem, Ltd.

    Abstract: Disclosed herein is a pouch-shaped battery case configured to receive an electrode assembly having a separator interposed between a positive electrode and a negative electrode, the pouch-shaped battery case including an outer coating layer, an inner adhesive layer, and a metal barrier layer disposed between the outer coating layer and the inner adhesive layer, the metal barrier layer including a plurality of metal layers and a heat dissipation layer interposed between the metal layers.

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