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    Device and method for predicting state-of-health of battery
    3.
    发明授权
    Device and method for predicting state-of-health of battery 有权

    公开(公告)号：US11307263B2

    公开(公告)日：2022-04-19

    申请号：US16956832

    申请日：2019-03-07

    Applicant: LG CHEM, LTD.

    Inventor： Dae Sik Chung ,  Jee Ho Kim

    IPC: G01R31/392 ,  G01R31/3835 ,  G01R31/367

    Abstract: An ESS SOH prediction method includes: a capacity virtual division step of virtually dividing a capacity of a measurement target ESS that is to predict an SOH into two or more capacity ranges; each capacity range-dependent charging/discharging cycle data measurement step of measuring charging/discharging cycle data of each capacity range divided in the capacity virtual division step; and a measurement target ESS SOH prediction step of predicting an SOH of a measurement target ESS based on charging/discharging cycle data of each actual ESS measured in the each capacity range-dependent charging/discharging cycle data measurement step.

    Secondary Battery
    4.
    发明申请
    Secondary Battery 有权

    公开(公告)号：US20210344087A1

    公开(公告)日：2021-11-04

    申请号：US17282571

    申请日：2019-10-04

    Applicant: LG Chem, Ltd.

    Inventor： Gyung Soo Kang ,  Jee Ho Kim ,  Yong Tae Lee ,  Myung Hoon Ko ,  Jung Il Park ,  Ki Youn Kim

    IPC: H01M50/581 ,  H01M50/107 ,  H01M50/116 ,  H01M50/578 ,  H01M10/04 ,  H01M10/653

    Abstract: A secondary battery comprises an electrode assembly, a can, and an insulator. The electrode assembly includes a first electrode, a separator, and a second electrode alternately stacked and wound. The can has an accommodation part accommodating the electrode assembly therein, and the can comprises a first can and a second can having cylindrical shapes open in a direction facing each other. The insulator insulates an overlapping portion between the first can and the second can. The first can is electrically connected to the first electrode, and the second can is electrically connected to the second electrode. The insulator has a short-circuit induction through-part defined by a through-hole or a cutoff line, such that a short circuit occurs between the first can and the second can through the short-circuit induction through-part when it is deformed in shape as heat or a pressure is applied to contract or expand the insulator.

    Secondary Battery
    6.
    发明申请
    Secondary Battery 有权

    公开(公告)号：US20210391615A1

    公开(公告)日：2021-12-16

    申请号：US17281792

    申请日：2019-10-01

    Applicant: LG Chem, Ltd.

    Inventor： Ki Youn Kim ,  Jee Ho Kim ,  Myung Hoon Ko ,  Jung Il Park ,  Yong Tae Lee ,  Gyung Soo Kang

    IPC: H01M50/107 ,  H01M10/04 ,  H01M10/0587 ,  H01M50/119 ,  H01M50/193 ,  H01M50/545 ,  H01M50/548

    Abstract: A secondary battery according to the present invention comprises: an electrode assembly in which a first electrode, a separator, and a second electrode are alternately stacked and wound together; a can provided with an accommodation part that accommodates the electrode assembly therein, the can comprising a first can and a second can, which have cylindrical shapes opened in a direction facing each other; and an insulator configured to insulate an overlapping portion between the first can and the second can. The first can forms a first electrode terminal that directly contacts an end of the first electrode, and the second can forms a second electrode terminal that directly contacts an end of the second electrode.

    Secondary Battery
    7.
    发明申请
    Secondary Battery 有权

    公开(公告)号：US20210376392A1

    公开(公告)日：2021-12-02

    申请号：US17282127

    申请日：2019-10-01

    Applicant: LG Chem, Ltd.

    Inventor： Jung Il Park ,  Jee Ho Kim ,  Yong Tae Lee ,  Myung Hoon Ko ,  Ki Youn Kim ,  Gyung Soo Kang

    IPC: H01M10/0587 ,  H01M10/04 ,  H01M50/538 ,  H01M50/107 ,  H01M50/536

    Abstract: A secondary battery comprises an electrode assembly including a first electrode, a separator, and a second electrode alternately stacked and wound about a central axis. A first non-coating portion that is not coated with an electrode active material protrudes farther than the separator in a first direction along the central axis and a second non-coating portion that is not coated with the electrode active material protrudes farther than the separator in a second, opposite direction along the central axis. The first non-coating portion contacts a first connection part disposed on an end of a first can of the battery, and the second non-coating portion contacts a second connection part disposed on an end of a second can. At least one of the first connection part or the second connection part comprises a protrusion having a shape protruding towards the electrode assembly.

    Secondary battery
    8.
    发明授权
    Secondary battery 有权

    公开(公告)号：US12132173B2

    公开(公告)日：2024-10-29

    申请号：US17282127

    申请日：2019-10-01

    Applicant: LG Chem, Ltd.

    Inventor： Jung Il Park ,  Jee Ho Kim ,  Yong Tae Lee ,  Myung Hoon Ko ,  Ki Youn Kim ,  Gyung Soo Kang

    IPC: H01M10/0587 ,  H01M10/04 ,  H01M50/107 ,  H01M50/536 ,  H01M50/538 ,  H01M50/10

    CPC classification number: H01M10/0587 ,  H01M10/0431 ,  H01M50/107 ,  H01M50/536 ,  H01M50/538 ,  H01M50/10

    Abstract: A secondary battery comprises an electrode assembly including a first electrode, a separator, and a second electrode alternately stacked and wound about a central axis. A first non-coating portion that is not coated with an electrode active material protrudes farther than the separator in a first direction along the central axis and a second non-coating portion that is not coated with the electrode active material protrudes farther than the separator in a second, opposite direction along the central axis. The first non-coating portion contacts a first connection part disposed on an end of a first can of the battery, and the second non-coating portion contacts a second connection part disposed on an end of a second can. At least one of the first connection part or the second connection part comprises a protrusion having a shape protruding towards the electrode assembly.

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