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公开(公告)号：US11035905B1
公开(公告)日：2021-06-15
申请号：US16613482
申请日：2019-01-08
申请人： LG CHEM, LTD.
发明人： Gi-Min Nam , Jin-Hyung Lim , Du-Seong Yoon , Won-Tae Joe
IPC分类号： G01R31/3842 , G01R31/389
摘要： Provided is an apparatus and method for testing the electrochemical performance of a battery cell in a non-destructive manner. The apparatus includes a measuring unit configured to measure an open circuit voltage (OCV) of the battery cell, a memory unit configured to store data obtained through pre-experiments for each of a plurality of reference cells and a process deviation value occurred in a manufacturing process of the battery cell, and a control unit electrically connected to the measuring unit and the memory unit. The control unit is configured to determine at least one of a capacity of the battery cell, an estimated profile data indicating a change in OCV of the battery cell in a predetermined state of charge (SOC) range and a resistance of the battery cell.
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公开(公告)号：US10884065B2
公开(公告)日：2021-01-05
申请号：US16070701
申请日：2017-06-29
申请人： LG Chem, Ltd.
发明人： Jin-Hyung Lim , Du-Seong Yoon , Won-Tae Joe , Yong-Seok Choi
IPC分类号： G01R31/385 , H01M10/0525 , H01M10/44 , H01M10/48 , G01R31/36 , G01R31/396 , G01R31/3842 , G01R31/388 , G01R31/367
摘要： Provided are apparatus and method of testing electrochemical performance of a battery cell in a nondestructive manner The apparatus according to an embodiment of the present disclosure includes: a memory configured to store first profile data, second profile data, a first positive electrode upper limit, a first positive electrode lower limit, a first negative electrode upper limit, and a first negative electrode lower limit that are determined in advance through a preliminary experiment with respect to each of a plurality of reference cells; a sensing unit configured to measure an open-circuit voltage of a test cell according to a variation in a state of charge (SOC) of the test cell; and a controller electrically connected to the memory and the sensing unit. The controller is configured to test performance of the test cell in a nondestructive manner based on data regarding the reference cells and data measured by the sensing unit stored in the memory.
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公开(公告)号：US20170317376A1
公开(公告)日：2017-11-02
申请号：US15525425
申请日：2015-11-06
申请人： LG Chem, Ltd.
发明人： Du-Seong Yoon , Ji-Hyun Kim , Jae-Hyun Lee
CPC分类号： H01M10/0481 , H01M2/1016 , H01M10/0404
摘要： 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.
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公开(公告)号：US10147965B2
公开(公告)日：2018-12-04
申请号：US15525425
申请日：2015-11-06
申请人： LG Chem, Ltd.
发明人： Du-Seong Yoon , Ji-Hyun Kim , Jae-Hyun Lee
摘要： 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.
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公开(公告)号：US20160028051A1
公开(公告)日：2016-01-28
申请号：US14432037
申请日：2014-10-31
申请人： LG Chem, Ltd.
发明人： Du-Seong Yoon
IPC分类号： H01M2/08 , H01M10/0525 , H01M2/02
CPC分类号： H01M2/08 , H01M2/0212 , H01M2/026 , H01M2/0262 , H01M2/0267 , H01M2/0275 , H01M2/0287 , H01M2/0292 , H01M10/0413 , H01M10/0436 , H01M10/049 , H01M10/052 , H01M2220/20 , H01M2220/30 , Y02E60/122
摘要： Disclosed is a pouch-type secondary battery. The pouch-type secondary battery according to the present disclosure includes an electrode assembly comprising a cathode plate and an anode plate and a separator interposed between the cathode plate and the anode plate; and a pouch-type case formed by receiving and packaging the electrode assembly and an electrolyte solution inside, the pouch-type case having a sealing part formed along a circumference thereof, wherein a water permeation prevention member is attached to the entire sealing part formed along the circumference of the pouch-type case by welding.
摘要翻译： 公开了一种袋式二次电池。 根据本公开的袋型二次电池包括电极组件，其包括阴极板和阳极板以及插入在阴极板和阳极板之间的隔膜; 以及通过在其内部接收和包装电极组件和电解质溶液而形成的袋状壳体，所述袋状壳体具有沿着其周边形成的密封部分，其中防水部件附接到沿着形成的整个密封部分 通过焊接的袋型外壳的周长。
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公开(公告)号：US11187756B2
公开(公告)日：2021-11-30
申请号：US16487270
申请日：2018-09-06
申请人： LG CHEM, LTD.
发明人： Jin-Hyung Lim , Du-Seong Yoon , Won-Tae Joe
IPC分类号： G01R31/392 , G01R31/3842 , G01R31/36 , H01M10/0525 , G01R31/396
摘要： Provided are an apparatus and method of obtaining degradation information of a lithium ion battery cell. The apparatus according to an embodiment estimates a first positive electrode usage region related to a first state of health of the lithium ion battery cell. The apparatus estimates a second positive electrode usage region related to a second state of health of the lithium ion battery cell. Then, the apparatus calculates an amount of change of maximum storage capacity of a positive electrode of the lithium ion battery cell with respect to a usage period from the first state of health to the second state of health, based on the first positive electrode usage region and the second positive electrode usage region.
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公开(公告)号：US20190079136A1
公开(公告)日：2019-03-14
申请号：US16070701
申请日：2017-06-29
申请人： LG Chem, Ltd.
发明人： Jin-Hyung Lim , Du-Seong Yoon , Won-Tae Joe , Yong-Seok Choi
IPC分类号： G01R31/36 , H01M10/0525 , H01M10/48 , H01M10/44
摘要： Provided are apparatus and method of testing electrochemical performance of a battery cell in a nondestructive manner The apparatus according to an embodiment of the present disclosure includes: a memory configured to store first profile data, second profile data, a first positive electrode upper limit, a first positive electrode lower limit, a first negative electrode upper limit, and a first negative electrode lower limit that are determined in advance through a preliminary experiment with respect to each of a plurality of reference cells; a sensing unit configured to measure an open-circuit voltage of a test cell according to a variation in a state of charge (SOC) of the test cell; and a controller electrically connected to the memory and the sensing unit. The controller is configured to test performance of the test cell in a nondestructive manner based on data regarding the reference cells and data measured by the sensing unit stored in the memory.
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公开(公告)号：US20170074634A1
公开(公告)日：2017-03-16
申请号：US15308893
申请日：2015-11-26
申请人： LG Chem, Ltd.
发明人： Du-Seong Yoon , Su-Hyun Kim , Ji-Hyun Kim , Jae-Hyun Lee
CPC分类号： G01B7/06 , G01B7/063 , G01B11/026 , G01B11/06 , G01B21/08 , G01B2210/44 , G01L1/16 , G01L5/0028 , G01L5/0038 , H01M10/48 , H02J7/0029 , H02J7/0047
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US11415631B2
公开(公告)日：2022-08-16
申请号：US16624057
申请日：2019-01-28
申请人： LG CHEM, LTD.
发明人： Du-Seong Yoon , Jin-Hyung Lim , Yo-Han Ko , Yong-Jun Kim , Hyeong-Seok Kim , Gi-Min Nam , Se-Wook Seo , Won-Tae Joe , Su-Hyun Chae
IPC分类号： G01R31/367 , G01R31/382 , G01R31/392
摘要： An apparatus estimating a state of charge (SOC)-open circuit voltage (OCV) profile, including: a storage unit storing: a beginning of life (BOL) positive electrode (PE) half-cell SOC-OCV profile and available range (AR), a BOL negative electrode (NE) half-cell SOC-OCV profile and AR, and a BOL full-cell SOC-OCV profile and total capacity (TC), and a control unit estimating a full-cell SOC-OCV profile at middle of life (MOL), including: an AR determination module for: calculating an MOL full-cell TC while a secondary battery is fully charged/discharged at MOL, and determining the MOL PE and NE ARs so a ratio of the MOL to the BOL full-cell TCs equals a ratio of the MOL to the BOL PE ARs and a ratio of the MOL to the BOL NE ARs, and a profile management module for: estimating, as an MOL full-cell SOC-OCV profile, a differential profile, and updating the BOL full-cell SOC-OCV profile.
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公开(公告)号：US10270264B2
公开(公告)日：2019-04-23
申请号：US15568181
申请日：2016-11-01
申请人： LG CHEM, LTD.
发明人： Du-Seong Yoon
IPC分类号： H02J7/00
摘要： Provided is a battery pack management apparatus that effectively improves the life of a battery pack. The battery pack management apparatus is an apparatus for managing a battery pack, in which a plurality of battery cells are electrically connected to each other, and includes: a measurement unit configured to measure the number of charging and discharging cycles of each of the plurality of battery cells; a selection unit configured to select at least some battery cells from among battery cells whose number of charging and discharging cycles measured by the measurement unit reached a reference number; and a blocking unit configured to stop operations of the at least some battery cells selected by the selection unit for a first reference time.
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