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1. 发明授权

US09929442B2 Battery pack having PCM case 有权
公开(公告)号：US09929442B2
公开(公告)日：2018-03-27
申请号：US15024889
申请日：2014-09-22
申请人： LG CHEM, LTD.
发明人： Soo Jun Ahn , Ho Chol Nam , Hyung Ku Yun
IPC分类号： H01M2/26 , H01M10/42 , H01M2/02 , H01M2/06 , H01M2/30 , H01M10/04 , H01M10/0525 , H01M10/48
CPC分类号： H01M10/425 , H01M2/021 , H01M2/0212 , H01M2/06 , H01M2/30 , H01M10/0436 , H01M10/0525 , H01M10/4235 , H01M10/486 , H01M2010/4271 , H01M2220/30
摘要： Disclosed herein is a battery pack configured to have a structure in which a protection circuit module (PCM) is mounted at a sealed surplus part of a battery cell at which electrode terminals of the battery cell are located, wherein the PCM includes a protection circuit board (PCB), a safety element, and an electrically insulative module case for surrounding the PCB and the safety element, the module case includes an upper case and a lower case coupled to each other through an assembly type fastening structure for receiving the PCB and the safety element, the module case, the PCB, and the electrode terminals are provided with first openings and second openings having a sufficient size to allow a first joint fastening member and a second joint fastening member to extend therethrough, and the PCB is received between the upper case and the lower case such that the PCB is electrically connected to the electrode terminals of the battery cell in a state in which the PCB is coupled to the electrode terminals of the battery cell by the first joint fastening member and the second joint fastening member.

2. 发明授权

US11380932B2 Electrolyte for lithium secondary batteries with improved low temperature performance and lithium secondary battery including the same 有权
公开(公告)号：US11380932B2
公开(公告)日：2022-07-05
申请号：US16720300
申请日：2019-12-19
申请人： LG Chem, Ltd.
发明人： Eun Hye Kil , Jin Kyu Lee , Ki Tae Kim , Hyung Ku Yun , Hyeaeun Han
IPC分类号： H01M10/052 , H01M10/056 , H01M10/0525 , H01M10/0566 , H01M10/0569 , H01M4/525 , H01M4/36 , H01M4/58 , C07C69/22 , C07D317/36
摘要： Disclosed are an electrolyte for lithium secondary batteries including 10 to 50% by weight of a cyclic carbonate compound, and 50 to 90% by weight of a linear ester compound, based on the total weight of a non-aqueous solvent, wherein a content of ethyl propionate of the linear ester compound is 20 to 60% by weight, based on the total weight of the non-aqueous solvent, and a lithium secondary battery including the electrolyte and exhibiting superior low-temperature characteristics.

3. 发明授权

US10411304B2 Electrode assembly wound in both directions and lithium secondary battery including the same 有权
公开(公告)号：US10411304B2
公开(公告)日：2019-09-10
申请号：US15504140
申请日：2015-09-16
申请人： LG CHEM, LTD.
发明人： Won Bin Cho , In Gu An , Hyung Ku Yun , Dong-Myung Kim
IPC分类号： H01M10/0587 , H01M10/04 , H01M10/0525 , H01M10/058 , H01M10/052 , H01M4/02
摘要： An electrode assembly includes a plurality of unit cells, each including a positive electrode, a negative electrode, and a separator disposed therebetween, and a single separation sheet disposed between the unit cells while surrounding side surfaces thereof. First and second stack parts of unit cells are wound with the separation sheet from each end of the separation sheet toward the middle of the separation sheet, a facing unit cell has one surface that contacts the first stack part with the separation sheet between the one surface of the facing unit cell and the first stack part and the other surface that contacts the second stack part with the separation sheet between the other surface of the facing unit cell and the second stack part, and the unit cells are stacked such that electrodes having opposite polarities are disposed in contact with each other with the separation sheet therebetween.

4. 发明授权

US10170802B2 Battery pack having PCM case 有权
公开(公告)号：US10170802B2
公开(公告)日：2019-01-01
申请号：US15023941
申请日：2014-09-26
申请人： LG CHEM, LTD.
发明人： Mi Geum Choi , Hyung Ku Yun , Dong Cheol Lee
IPC分类号： H01M10/42 , H01M10/0585 , H01M2/34 , H01M10/0525 , H01M2/30 , H01M2/02 , H01M2/10 , H01M2/04
摘要： Disclosed herein is a battery pack configured to have a structure including a plate-shaped battery cell having electrode terminals formed at one side thereof including a sealed surplus part and a protection circuit module (PCM) mounted at the sealed surplus part, wherein each of the electrode terminals of the battery cell is made of a plate-shaped conductive member, the PCM includes a protection circuit board (PCB), a safety element electrically connected between one of the electrode terminals formed at one side of the battery cell and the PCB or loaded on the PCB, an external input and output terminal electrically connected to a protection circuit of the PCB, and an electrically insulative module case in which the PCB and the safety element are mounted in a state in which the external input and output terminal extends outside, the module case is configured to have a structure in which two outer surfaces of the module case are open outward to form a first open surface and a second open surface, the module case is provided at an interior thereof with a PCB receiving part, and the PCM is loaded on the sealed surplus part of the battery cell in a state in which the PCM is received in the module case such that the PCM is electrically connected to the electrode terminals of the battery cell.

5. 发明授权

US10770694B2 Prismatic battery cell having two or more case members 有权
公开(公告)号：US10770694B2
公开(公告)日：2020-09-08
申请号：US15502875
申请日：2015-09-22
申请人： LG CHEM, LTD.
发明人： Ki Tae Kim , Hyung Ku Yun , Dong-Myung Kim , Hyojin Kim
IPC分类号： H01M2/02 , H01M10/04 , H01M2/04 , H01M2/06 , H01M2/30 , H01M10/0525 , H01M10/0583
摘要： Disclosed herein is a prismatic battery cell including an electrode assembly including a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, the electrode assembly having a positive electrode terminal and a negative electrode terminal protruding from at least one side of the positive electrode and the negative electrode, two or more case members coupled to each other so as to have a shape corresponding to the external shape of the electrode assembly such that the case members surround the electrode assembly, the case members having a predetermined opening, through which one surface of the electrode assembly, at least, corresponding to protruding portions of the positive electrode terminal and the negative electrode terminal is exposed, and a cap plate coupled to the opening of the case members in a sealed state.

6. 发明授权

US10573921B2 Electrolyte for lithium secondary batteries with improved low temperature performance and lithium secondary battery including the same 有权
公开(公告)号：US10573921B2
公开(公告)日：2020-02-25
申请号：US15509661
申请日：2015-12-02
申请人： LG CHEM, LTD.
发明人： Eun Hye Kil , Jin Kyu Lee , Ki Tae Kim , Hyung Ku Yun , Hyeaeun Han
IPC分类号： H01M10/052 , H01M10/056 , H01M10/0525 , H01M10/0566 , H01M10/0569 , H01M4/36 , H01M4/525 , H01M4/58 , C07C69/22 , C07D317/36
摘要： Disclosed are an electrolyte for lithium secondary batteries including 10 to 50% by weight of a cyclic carbonate compound, and 50 to 90% by weight of a linear ester compound, based on the total weight of a non-aqueous solvent, wherein a content of ethyl propionate of the linear ester compound is 20 to 60% by weight, based on the total weight of the non-aqueous solvent, and a lithium secondary battery including the electrolyte and exhibiting superior low-temperature characteristics.

7. 发明授权

US10510996B2 Battery 有权
公开(公告)号：US10510996B2
公开(公告)日：2019-12-17
申请号：US15740962
申请日：2017-02-20
申请人： LG CHEM, LTD.
发明人： Yoo Jin An , Hyung Ku Yun , In Gu An , Dong Myung Kim
IPC分类号： H01M2/02 , H01M10/052 , H01M2/10
摘要： According to the present invention, grip feeling of an electronic device to which the battery is mounted may be improved by optimizing a shape of a battery, and miniaturization of the electronic device may be promoted at the same time. In order to achieve the above-described object, a battery is disclosed, the battery including: a first surface having a circumference of a closed curve having a curve; a second surface having a circumference of a closed curve having a curve; and a volume portion configured to connect the first surface to the second surface and defining a volume, wherein at least one of the first surface and the second surface has a circumference of the closed curve defined by connecting ends of each of two curves curved in the same direction to each other, and the first surface has an area different from that of the second surface.

8. 发明授权

US10297866B2 Battery pack having PCM fixing tape 有权
公开(公告)号：US10297866B2
公开(公告)日：2019-05-21
申请号：US15023230
申请日：2014-07-15
申请人： LG CHEM, LTD.
发明人： Mi Geum Choi , Hyung Ku Yun , So Hyon Ju
IPC分类号： H01M10/0585 , H01M2/10 , H01M2/34 , H01M10/42 , H01M2/02 , H01M2/22 , H01M2/30 , H01M10/0525 , H01M2/04
摘要： Disclosed herein is a battery pack configured to have a structure including a plate-shaped battery cell having electrode terminals formed at one side thereof including a sealed surplus part and a protection circuit module (PCM) mounted at the sealed surplus part, wherein each of the electrode terminals of the battery cell is made of a plate-shaped conductive member, the PCM includes a protection circuit board (PCB), a safety element electrically connected between one of the electrode terminals of the battery cell and the PCB or loaded on the PCB, an external input and output terminal electrically connected to a protection circuit of the PCB, and an electrically insulative module case in which the PCB and the safety element are mounted in a state in which the external input and output terminal extends outside, the PCM is loaded on the sealed surplus part of the battery cell in a state in which the PCM is received in the module case such that the PCM is electrically connected to the electrode terminals of the battery cell, and the module case includes a PCB receiving part open outward at one side thereof and an adhesive fixing tape is attached to an outer surface of the module case contacting the sealed surplus part.

9. 发明授权

US10263226B2 Battery cell having asymmetric and indented structure 有权
公开(公告)号：US10263226B2
公开(公告)日：2019-04-16
申请号：US15126156
申请日：2014-11-07
申请人： LG CHEM, LTD.
发明人： Hyun Park , Hyung Ku Yun , In Gu An , Eun Seok Choi , Jin Woo Choi , Yoo Jin An
IPC分类号： H01M2/06 , H01M2/02 , H01M2/10 , H01M10/04 , H01M2/30 , H01M10/0525 , H01M10/0583 , H01M10/0585 , H01M10/0587 , H01M10/052 , H01M10/0562
摘要： A battery cell configured to have a structure in which an electrode assembly, including a positive electrode, a negative electrode, and a separator interposed therebetween, is mounted in a battery case, the electrode assembly including two or more unit cells having different planar sizes, the unit cells being stacked in the height direction on the basis of a plane, at least one first unit cell selected from among the unit cells has an asymmetric structure formed on at least one side of the outer edge thereof on the basis of a middle axis crossing a main body of the first unit cell when viewed from above, and at least one second unit cell selected from among the unit cells has an indented portion indented from at least one side of the second unit cell toward the middle of the second unit cell.

10. 发明授权

US10749150B2 Case including insulating layer for secondary batteries and lithium secondary battery including the same 有权
公开(公告)号：US10749150B2
公开(公告)日：2020-08-18
申请号：US15429966
申请日：2017-02-10
申请人： LG Chem, Ltd.
发明人： Joo Young Chung , Dong-Myung Kim , Hyung Ku Yun
IPC分类号： H01M2/02
摘要： Disclosed is a case for secondary batteries including a laminate sheet composed of multiple layers, the laminate sheet including an insulating layer having an elongation percentage of 10% or more.

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