公开(公告)号：US10340498B2

公开(公告)日：2019-07-02

申请号：US15480766

申请日：2017-04-06

Applicant: LG Chem, Ltd.

Inventor： Sei-Woon Oh ,  Seong-Yoon Lim ,  Ji-Hyun Kim ,  Won-Seok Jeong

IPC: H01M2/26 ,  H01M4/70 ,  H01M10/0585 ,  H01M10/052 ,  H01M10/0525 ,  H01M2/20

Abstract: Disclosed is a battery cell, including an electrode assembly including electrode plates respectively having an electrode tab protruding therefrom and separators, which are alternately stacked, the electrode tabs being bent in an upper direction of the electrode assembly, the electrode assembly including an electrode lead coupled with an end of the bent electrode tabs to form a tab-lead coupler; and a battery case configured to accommodate the electrode assembly so that the electrode lead is partially exposed outwards. The tab-lead coupler is located on an extension line of an outermost electrode plate of the electrode assembly, which is located at a side where the electrode tabs are bent, and the tab-lead coupler is opposite to one side of the electrode assembly having the protruded electrode tab to come into contact with one side of the electrode assembly or be spaced apart therefrom.

公开(公告)号：US20170317376A1

公开(公告)日：2017-11-02

申请号：US15525425

申请日：2015-11-06

Applicant: LG Chem, Ltd.

Inventor： Du-Seong Yoon ,  Ji-Hyun Kim ,  Jae-Hyun Lee

IPC: H01M10/04 ,  H01M2/10

CPC classification number: H01M10/0481 ,  H01M2/1016 ,  H01M10/0404

Abstract: The present disclosure discloses a pressing jig of secondary battery cell, the pressing jig including: one pair of pressing plates hinge-coupled to be mutually foldable, and having space therebetween where the cell of the secondary battery may be disposed; and a locking mechanism configured to fixate a folded state of the one pair of pressing plates, wherein at least one of the one pair of pressing plates is made of a polyacetal (POM) material.

公开(公告)号：US20170214028A1

公开(公告)日：2017-07-27

申请号：US15480766

申请日：2017-04-06

Applicant: LG Chem, Ltd.

Inventor： Sei-Woon Oh ,  Seong-Yoon Lim ,  Ji-Hyun Kim ,  Won-Seok Jeong

IPC: H01M2/26 ,  H01M10/0585 ,  H01M10/0525

CPC classification number: H01M2/266 ,  H01M2/202 ,  H01M4/70 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2220/20 ,  H01M2220/30 ,  Y02T10/7011

Abstract: Disclosed is a battery cell, including an electrode assembly including electrode plates respectively having an electrode tab protruding therefrom and separators, which are alternately stacked, the electrode tabs being bent in an upper direction of the electrode assembly, the electrode assembly including an electrode lead coupled with an end of the bent electrode tabs to form a tab-lead coupler; and a battery case configured to accommodate the electrode assembly so that the electrode lead is partially exposed outwards. The tab-lead coupler is located on an extension line of an outermost electrode plate of the electrode assembly, which is located at a side where the electrode tabs are bent, and the tab-lead coupler is opposite to one side of the electrode assembly having the protruded electrode tab to come into contact with one side of the electrode assembly or be spaced apart therefrom.

公开(公告)号：US10673024B2

公开(公告)日：2020-06-02

申请号：US15540478

申请日：2016-07-27

Applicant: LG Chem, Ltd.

Inventor： Ji-Hyun Kim

IPC: H01M2/02 ,  H01M10/052 ,  H01M10/058 ,  H01M10/42 ,  H01M10/647 ,  H01M10/613 ,  H01M10/61 ,  H01M2/06 ,  H01M2/08

Abstract: The present invention relates to a pouch type secondary battery comprising a safety member, such as dodecafluoro-2-methylpentane-3-one, between an external pouch and an internal pouch, wherein the safety member allows the cell temperature to be kept low or enables extinguishing at the time of cell ignition, and has an effect of improving the suppression of moisture permeation.

公开(公告)号：US10270069B2

公开(公告)日：2019-04-23

申请号：US15526530

申请日：2016-02-05

Applicant: LG Chem, Ltd.

Inventor： Vin-Na Jo ,  Jae-Hyun Lee ,  Ji-Hyun Kim

IPC: H01M2/00 ,  H01M2/02 ,  H01M10/04 ,  H01M2/18 ,  H01M10/052 ,  H01M10/0585 ,  H01M10/42

Abstract: The present invention provides a pouch-type secondary battery comprising: an electrode assembly having, repeatedly stacked therein, unit cells comprising a positive plate, a negative plate, and a separator positioned between the positive and negative plates, wherein the positive plate and negative plate are respectively provided with a positive electrode tab and a negative electrode tab, and the positive and negative electrode tabs each converge in a predetermined direction; and a pouch case for sealing the electrode assembly, the pouch-type secondary battery being characterized by taping in contact with the outer circumferential surface of the electrode assembly along the stacking thickness direction of the electrode assembly, at the end of the electrode assembly at the part where the tabs converge, thereby improving the safety of the pouch-type secondary battery.

公开(公告)号：US10147965B2

公开(公告)日：2018-12-04

申请号：US15525425

申请日：2015-11-06

Applicant: LG Chem, Ltd.

Inventor： Du-Seong Yoon ,  Ji-Hyun Kim ,  Jae-Hyun Lee

IPC: H01M2/10 ,  H01M10/04

Abstract: The present disclosure discloses a pressing jig of secondary battery cell, the pressing jig including: one pair of pressing plates hinge-coupled to be mutually foldable, and having space therebetween where the cell of the secondary battery may be disposed; and a locking mechanism configured to fixate a folded state of the one pair of pressing plates, wherein at least one of the one pair of pressing plates is made of a polyacetal (POM) material.

公开(公告)号：US20180047950A1

公开(公告)日：2018-02-15

申请号：US15556170

申请日：2016-03-28

Applicant: LG Chem, Ltd.

Inventor： Seong-Yoon Lim ,  Ji-Hyun Kim

IPC: H01M2/08 ,  H01M10/04

Abstract: Provided is a sealing apparatus of a pouch-type secondary battery, capable of preventing electrolyte leakage by constantly positioning a lead on a sealing groove so as to completely seal the secondary battery. A sealing apparatus according to the present disclosure is a sealing apparatus of a pouch-type secondary battery which seals a pouch case in which an electrode assembly is installed. The sealing apparatus includes upper and lower sealing blocks, wherein at least one sealing block of the upper and lower sealing blocks has a sealing groove having a slanted step portion which is formed at a position corresponding to the lead of the pouch-type secondary battery and a lead guide for seating the lead on the sealing groove is installed in front of the sealing block.

公开(公告)号：US20170358783A1

公开(公告)日：2017-12-14

申请号：US15540478

申请日：2016-07-27

Applicant: LG Chem, Ltd.

Inventor： Ji-Hyun Kim

IPC: H01M2/02 ,  H01M10/052 ,  H01M2/08 ,  H01M2/06 ,  H01M10/058 ,  H01M10/61

Abstract: The present invention relates to a pouch type secondary battery comprising a safety member, such as dodecafluoro-2-methylpentane-3-one, between an external pouch and an internal pouch, wherein the safety member allows the cell temperature to be kept low or enables extinguishing at the time of cell ignition, and has an effect of improving the suppression of moisture permeation.

公开(公告)号：US20170074634A1

公开(公告)日：2017-03-16

申请号：US15308893

申请日：2015-11-26

Applicant: LG Chem, Ltd.

Inventor： Du-Seong Yoon ,  Su-Hyun Kim ,  Ji-Hyun Kim ,  Jae-Hyun Lee

IPC: G01B7/06 ,  H02J7/00 ,  H01M10/48 ,  G01L1/16 ,  G01L5/00

CPC classification number: G01B7/06 ,  G01B7/063 ,  G01B11/026 ,  G01B11/06 ,  G01B21/08 ,  G01B2210/44 ,  G01L1/16 ,  G01L5/0028 ,  G01L5/0038 ,  H01M10/48 ,  H02J7/0029 ,  H02J7/0047

Abstract: Provided are a device and method for measuring the thickness of a secondary battery cell. The device according to the present invention comprises: a mounting stand on which a secondary battery cell is positioned; a pressurizing plate which is installed so as to be variable in distance from the mounting stand; a pressurizing means which pushes or pulls the pressurizing plate toward or from the pressurizing plate; a measurement means for measuring the pressurization force applied to the pressurizing plate by the pressurizing means and the thickness of the secondary battery cell; and a controller which is configured to control charging, discharging or temperature of the secondary battery cell according to measurement conditions, receive a pressurization force measurement value and a thickness measurement value from the measurement means to thereby determine the magnitude of the pressurization force applied to the pressurizing plate and the thickness of the secondary battery cell, and vary, or maintain the pressurization force applied to the pressurizing plate to be constant.

Abstract translation: 提供了用于测量二次电池单元的厚度的装置和方法。 根据本发明的装置包括：安装在二次电池单元上的安装台; 加压板，其安装成距离安装台的距离可变; 加压装置，其朝向或从加压板推压或拉动加压板; 用于测量通过加压装置施加到加压板的加压力和二次电池单元的厚度的测量装置; 以及控制器，被配置为根据测量条件控制二次电池的充电，放电或温度，从测量装置接收加压力测量值和厚度测量值，从而确定施加到二次电池的加压力的大小 加压板和二次电池单元的厚度，并且改变或保持施加到加压板的加压力恒定。

公开(公告)号：US09520589B2

公开(公告)日：2016-12-13

申请号：US13753901

申请日：2013-01-30

Applicant: LG Chem, Ltd.

Inventor： Ji-Hyun Kim ,  Bo-Hyun Kim

IPC: H01M2/02 ,  H01M2/30 ,  H01M2/26 ,  H01M10/04

CPC classification number: H01M2/30 ,  H01M2/021 ,  H01M2/0212 ,  H01M2/263 ,  H01M2/266 ,  H01M10/0413 ,  H01M10/0431

Abstract: Disclosed is a secondary battery of an improved lead structure including an electrode assembly including a cathode plate having a cathode tab, an anode plate having an anode tab, and a separator stacked in an alternate manner, a battery casing to receive the electrode assembly, a cathode lead electrically connected to the cathode tab, and an anode lead electrically connected to the anode tab, wherein at least one electrode tab of the cathode tab and the anode tab is electrically connected to the corresponding electrode lead at a plurality of joints and the number of the electrode leads is smaller than the number of the joints between the electrode tab and the electrode lead.

Abstract translation: 公开了一种改进的引线结构的二次电池，其包括电极组件，该电极组件包括具有阴极片的阴极板，具有阳极片的阳极板和以交替方式堆叠的隔板，用于接收电极组件的电池壳体， 电连接到阴极突片的阴极引线和电连接到阳极突片的阳极引线，其中阴极突片和阳极突片的至少一个电极突片在多个接头处电连接到相应的电极引线，数字 的电极引线小于电极接头和电极引线之间的接头数量。