公开(公告)号：US11322799B2

公开(公告)日：2022-05-03

申请号：US16603755

申请日：2018-11-30

申请人： LG Chem, Ltd.

发明人： Yong Jun Kim ,  Seok Koo Kim

IPC分类号： H01M50/446 ,  H01M4/13 ,  H01M10/0525 ,  H01M10/0583

摘要： The present invention provides an electrode assembly in which a plurality of unit cells are disposed, wherein one of the unit cells comprises: a first double-sided electrode in which a slurry is on opposite surfaces of a first collector; a separator adjacent to the first double-sided electrode; a second double-sided electrode adjacent to the separator and in which a slurry is on opposite surfaces of a second collector; and a single-sided electrode adjacent to the second double-sided electrode and in which the slurry is only on one surface of a third collector, the one surface facing the second double-sided electrode, the single-sided electrode having a coating layer on the slurry thereof, the coating layer preventing contact between the slurry of the single-sided electrode and the slurry on one of the surfaces of the second collector that faces the single-sided electrode, the coating layer allowing ions to pass therethrough.

公开(公告)号：US10910637B2

公开(公告)日：2021-02-02

申请号：US16344196

申请日：2018-06-27

申请人： LG Chem, Ltd.

发明人： Jooyong Song ,  Seok Koo Kim ,  In Chul Kim ,  Ju Ri Kim ,  Myung Ki Lee

IPC分类号： H01M4/36 ,  H01M4/38 ,  H01M4/62 ,  H01M4/525 ,  H01M10/0525

摘要： Provided are a positive electrode and a lithium secondary battery which have high energy capacity and include a nickel-containing positive electrode active material, and an additive including metal particles and lithium oxide.

公开(公告)号：US20200227729A1

公开(公告)日：2020-07-16

申请号：US16344196

申请日：2018-06-27

申请人： LG Chem, Ltd.

发明人： Jooyong Song ,  Seok Koo Kim ,  In Chul Kim ,  Ju Ri Kim ,  Myung Ki Lee

IPC分类号： H01M4/36 ,  H01M4/62 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/38

摘要： Provided are a positive electrode and a lithium secondary battery which have high energy capacity and include a nickel-containing positive electrode active material, and an additive including metal particles and lithium oxide.

公开(公告)号：US10217983B2

公开(公告)日：2019-02-26

申请号：US14784772

申请日：2014-07-25

申请人： LG Chem, Ltd.

发明人： Seok Koo Kim ,  Eun Ju Lee ,  Bokkyu Choi ,  Sei Woon Oh ,  Je Young Kim

IPC分类号： H01M2/16 ,  H01M4/60 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/42

摘要： Disclosed are a cross-linked compound particle and a secondary battery including the same. More particularly, a compound particle which includes a monomer and a polymerization initiator, as a core and a film including a material disappeared at predetermined temperature as a shell is provided.

公开(公告)号：US20180248235A1

公开(公告)日：2018-08-30

申请号：US15754211

申请日：2016-09-06

申请人： LG Chem, Ltd.

发明人： Yong Jun Kim ,  Seok Koo Kim ,  Seung Hyun Chung

IPC分类号： H01M10/52 ,  B01J20/20 ,  B01J20/18 ,  H01M2/26 ,  H01M2/02 ,  H01M2/10 ,  H01M10/42

CPC分类号： H01M10/52 ,  B01J20/18 ,  B01J20/20 ,  H01M2/0275 ,  H01M2/1072 ,  H01M2/263 ,  H01M10/0525 ,  H01M10/4235 ,  H01M2220/20

摘要： Disclosed herein is a battery cell including: an electrode assembly including an electrode tab protruding toward at least one outer periphery; a battery case including an accommodation part in which the electrode assembly is mounted; and an electrode lead connected to the electrode tab for electrical connection with an external device, wherein the electrode lead includes: a tab connection part electrically connected to the electrode tab; and a protrusion extension part extended from the tab connection part and protruding outwardly of the battery case to thereby be electrically connected to the external device, the tab connection part being coated with a gas adsorbent.

公开(公告)号：US11656283B2

公开(公告)日：2023-05-23

申请号：US17047873

申请日：2019-07-11

申请人： LG CHEM, LTD.

发明人： Ji Hye Park ,  Seok Koo Kim

IPC分类号： G01R31/367 ,  H01M10/0525 ,  G01R31/396 ,  H01M4/13 ,  G01R31/392 ,  H01M4/02 ,  G01N27/04

CPC分类号： G01R31/367 ,  G01N27/041 ,  H01M10/0525 ,  G01N27/04 ,  G01R31/392 ,  G01R31/396 ,  H01M4/02 ,  H01M4/13 ,  Y02E60/10

摘要： The present invention discloses a method for determining dispersibility, comprising (a) selecting two random points (1-1′) of an electrode material layer, (b) finding a difference Δ1 of an absolute value of two voltage values by measuring voltages between the two points (1-1′) in different current directions, (c) selecting two other random points (2-2′ to n-n′, where n is an integer that is equal to or greater than 2) that are different from two points selected in the process (a) and, and repeating the processes (a) and (b) at least once to find Δ2 to Δn, (d) finding a mean value of differences Δ1 to Δn of the absolute values obtained by repeating the process (b) and the process (c), and (e) finding a standard deviation of Δ1 to Δn from the mean value.

公开(公告)号：US11056714B2

公开(公告)日：2021-07-06

申请号：US15969123

申请日：2018-05-02

申请人： LG CHEM, LTD.

发明人： Sun Kyu Kim ,  Seok Koo Kim

IPC分类号： H01M10/00 ,  H01M10/0525 ,  H01M10/42 ,  H01M4/66 ,  H01M10/04 ,  H01M50/502 ,  H01M50/531 ,  H01M10/0585 ,  H01M10/052 ,  H01M50/557

摘要： Provided is a secondary battery that is capable of reducing resistance. The secondary battery includes an electrode assembly in which a positive electrode and a negative electrode are alternately laminated with a separator therebetween, a first bus bar laminated on the outside of the positive electrode disposed on the outermost portion of one side of the electrode assembly with a separator therebetween, a second bus bar laminated on the outside of the negative electrode disposed on the outermost portion of the other side of the electrode assembly with a separator therebetween, and a case accommodating the electrode assembly, the first bus bar, and the second bus bar.

公开(公告)号：US20200295410A1

公开(公告)日：2020-09-17

申请号：US16497235

申请日：2018-07-10

申请人： LG Chem, Ltd.

发明人： Chul Gi Hong ,  Jae Hyun Lee ,  Seok Koo Kim ,  Dong Kyu Kim ,  Dae Soo Kim

IPC分类号： H01M10/42 ,  H01M10/052 ,  H01M4/38 ,  G01R31/392 ,  G01R31/389

摘要： A method for regenerating a lithium secondary battery including a lithium resupply step in which a lithium resupply electrode is provided in the secondary battery, and the positive electrode is set as a counter electrode, and the lithium resupply electrode is set as a working electrode to charge lithium ions to the positive electrode through the lithium resupply electrode and a negative electrode discharging step in which, after the lithium ions are resupplied to the positive electrode through the lithium resupply step, the lithium resupply electrode is set as the counter electrode, and the negative electrode is set as the working electrode to completely discharge the negative electrode up to a discharge limit.

公开(公告)号：US10249919B2

公开(公告)日：2019-04-02

申请号：US15320459

申请日：2015-07-16

申请人： LG Chem, Ltd.

发明人： Sei Woon Oh ,  Eun Ju Lee ,  Jung Ah Shim ,  Seok Koo Kim ,  Je Young Kim

IPC分类号： H01M10/643 ,  H01M10/052 ,  H01M10/613 ,  H01M10/623 ,  H01M10/654 ,  H01M2/02 ,  H01M2/06 ,  H01M2/10 ,  H01M2/30 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/0587

摘要： Disclosed herein is a battery cell configured to have a structure in which an electrode stack, which is configured to have a structure in which positive electrodes and negative electrodes are stacked in the height direction on the basis of the ground in the state in which separators are disposed respectively between the positive electrodes and the negative electrodes, is mounted in a battery case in a sealed state, the battery case is formed in a pipe shape having a hollow part, and the electrode stack is formed in a shape corresponding to the shape of the battery case.

公开(公告)号：US20170229745A1

公开(公告)日：2017-08-10

申请号：US15320459

申请日：2015-07-16

申请人： LG Chem, Ltd.

发明人： Sei Woon Oh ,  Eun Ju Lee ,  Jung Ah Shim ,  Seok Koo Kim ,  Je Young Kim

IPC分类号： H01M10/643 ,  H01M2/10 ,  H01M2/30 ,  H01M2/06 ,  H01M10/654 ,  H01M10/0585 ,  H01M10/0587 ,  H01M10/613 ,  H01M10/0525 ,  H01M10/623 ,  H01M2/02 ,  H01M10/04

CPC分类号： H01M10/643 ,  H01M2/022 ,  H01M2/0257 ,  H01M2/06 ,  H01M2/105 ,  H01M2/30 ,  H01M10/0422 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/0587 ,  H01M10/613 ,  H01M10/623 ,  H01M10/654 ,  H01M2220/30 ,  Y02T10/7011

摘要： Disclosed herein is a battery cell configured to have a structure in which an electrode stack, which is configured to have a structure in which positive electrodes and negative electrodes are stacked in the height direction on the basis of the ground in the state in which separators are disposed respectively between the positive electrodes and the negative electrodes, is mounted in a battery case in a sealed state, the battery case is formed in a pipe shape having a hollow part, and the electrode stack is formed in a shape corresponding to the shape of the battery case.