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公开(公告)号：US20210151796A1
公开(公告)日：2021-05-20
申请号：US16882842
申请日：2020-05-26
申请人： Hyundai Motor Company , Kia Motors Corporation , The Industry & Academic Cooperation in Chungnam National University (IAC)
发明人： Yoon Sung Lee , Yeol Mae Yeo , Seung Min Oh , Ik Kyu Kim , Ji Eun Lee , Nam Hyeong Kim , Dong Jun Kim , Seung Wan Song , Gyeong Jun Chung
IPC分类号： H01M10/0567 , H01M10/052 , H01M4/38 , H01M4/587 , H01M4/505 , H01M4/525 , C07C69/96
摘要： An electrolytic solution is disclosed. The electrolytic solution can be used, for example, in a lithium secondary battery. The electrolytic solution includes lithium salt, a solvent, and a functional additive, wherein the functional additive comprises a high-voltage additive, and wherein the high-voltage additive comprises 1-fluoroethyl methyl carbonate (FEMC), expressed by the following formula:
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公开(公告)号：US11221374B2
公开(公告)日：2022-01-11
申请号：US16837116
申请日：2020-04-01
发明人： Sang Mok Park , Young Woo Lee , Ik Kyu Kim , Sung Ho Ban , Yoon Ji Lee , Jung Young Cho
IPC分类号： G01R31/392 , H01M10/42 , G01R31/389 , H01M10/0525
摘要： A method for checking defects in a lithium ion secondary battery includes primarily charging and degassing the lithium ion secondary battery after manufacture of the secondary battery, secondarily charging and discharging the secondary battery and then measuring one or more of OCVs and IRs of lithium ion secondary battery cells; pressurizing and aging the secondary battery by aging the secondary battery in a state in which a pressure of a designated magnitude or more is applied to the secondary battery, and checking whether or not the secondary battery cells are defective by re-measuring the one or more of OCVs and IRs of the secondary battery cells and then comparing the re-measured one or more of the OCVs and the IRs to the previously measured one or more of the OCVs and the IRs.
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公开(公告)号：US20210184261A1
公开(公告)日：2021-06-17
申请号：US16897755
申请日：2020-06-10
发明人： Yoon Sung Lee , Ik Kyu Kim , Seung Min Oh , Young Woo Lee , Dong Jun Kim , Sung Ho Ban , Sung Hoon Lim
IPC分类号： H01M10/0567 , H01M10/0525 , H01M10/0568 , H01M4/505 , H01M4/525 , H01M4/587 , H01M10/0569 , C07C69/96
摘要： Disclosed are an electrolyte solution for lithium secondary batteries capable of increasing the lifetime of the lithium secondary batteries and a lithium secondary battery including the same. Provided is an electrolyte solution for lithium secondary batteries including a lithium salt, a solvent and allyl(4-(1,3-bis(4-(((allyloxy)carbonyl)oxy)-5-(tert-butyl)-2-methylphenyl)butyl)-2-(tert-butyl)-5-methylphenyl) represented by the following Formula 1.
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公开(公告)号：US20210156925A1
公开(公告)日：2021-05-27
申请号：US16837116
申请日：2020-04-01
发明人： Sang Mok Park , Young Woo Lee , Ik Kyu Kim , Sung Ho Ban , Yoon Ji Lee , Jung Young Cho
IPC分类号： G01R31/392 , H01M10/42 , H01M10/0525 , G01R31/389
摘要： Disclosed are a method for checking defects in a lithium ion secondary battery and a lithium ion secondary battery manufactured thereby. The method includes primarily charging and degassing the lithium ion secondary battery after manufacture of the secondary battery, secondarily charging and discharging the secondary battery and then measuring one or more of OCVs and IRs of lithium ion secondary battery cells; pressurizing and aging the secondary battery by aging the secondary battery in a state in which a pressure of a designated magnitude or more is applied to the secondary battery, and checking whether or not the secondary battery cells are defective by re-measuring the one or more of OCVs and IRs of the secondary battery cells and then comparing the re-measured one or more of the OCVs and the IRs to the previously measured one or more of the OCVs and the IRs.
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公开(公告)号：US10320037B2
公开(公告)日：2019-06-11
申请号：US15614253
申请日：2017-06-05
发明人： Sung Min Choi , Hong Seok Min , Oh Min Kwon , Ik Kyu Kim , Seung Ho Ahn
摘要： An overcharge safety device includes a switch electrically connecting a lead tap of a battery cell with a bus bar, and includes a guide member connected with the switch and movable as a pouch of the battery cell swells. As the pouch of the battery cell swells, the guide member moves toward the bus bar to disconnect the switch from the lead tap.
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公开(公告)号：US11824190B2
公开(公告)日：2023-11-21
申请号：US16928507
申请日：2020-07-14
申请人： Hyundai Motor Company , Kia Motors Corporation , Industry Academy Cooperation Foundation of Sejong University
发明人： Seung Min Oh , Ik Kyu Kim , Yeol Mae Yeo , Sang Mok Park , Yoon Sung Lee , Nam Hyeong Kim , Ji Eun Lee , Dong Jun Kim , Seung Taek Myung , Ji Ung Choi
IPC分类号： H01M4/36 , H01M4/485 , H01M4/38 , H01M4/131 , H01M4/133 , H01M4/1391 , H01M10/0525 , H01M4/02
CPC分类号： H01M4/366 , H01M4/131 , H01M4/133 , H01M4/1391 , H01M4/38 , H01M4/485 , H01M10/0525 , H01M2004/027
摘要： Disclosed are a cathode material for a lithium secondary battery and a method of manufacturing the same. For instance, the lithium secondary battery may have a high energy density by using only a single cathode material. Particularly, the cathode material for a lithium secondary battery includes a Li—[Mn—Ti]—Al—O-based cathode active material; and a carbon nanotube (CNT) attached to the surface of the cathode active material in an acid-treated state to be formed as a composite.
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公开(公告)号：US20210184262A1
公开(公告)日：2021-06-17
申请号：US16897916
申请日：2020-06-10
发明人： Yoon Sung Lee , Ik Kyu Kim , Seung Min Oh , Young Woo Lee , Dong Jun Kim , Sung Ho Ban , Sung Hoon Lim
IPC分类号： H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M10/0525 , H01M4/505 , H01M4/525 , H01M4/587 , C07C205/57
摘要： Disclosed are an electrolyte solution for lithium secondary batteries capable of increasing the lifetime of the lithium secondary batteries and a lithium secondary battery including the same.
Provided is an electrolyte solution for lithium secondary batteries including a lithium salt, a solvent and allyl(4-nitrophenyl) carbonate represented by the following Formula 1.-
公开(公告)号：US11444327B2
公开(公告)日：2022-09-13
申请号：US16897916
申请日：2020-06-10
发明人： Yoon Sung Lee , Ik Kyu Kim , Seung Min Oh , Young Woo Lee , Dong Jun Kim , Sung Ho Ban , Sung Hoon Lim
IPC分类号： H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M10/0525 , H01M4/505 , H01M4/525 , H01M4/587 , C07C205/57
摘要： Disclosed are an electrolyte solution for lithium secondary batteries capable of increasing the lifetime of the lithium secondary batteries and a lithium secondary battery including the same. Provided is an electrolyte solution for lithium secondary batteries including a lithium salt, a solvent and allyl(4-nitrophenyl) carbonate.
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公开(公告)号：US20210184264A1
公开(公告)日：2021-06-17
申请号：US16901569
申请日：2020-06-15
发明人： Yoon Sung Lee , Seung Min Oh , Nam Hyeong Kim , Dong Jun Kim , Sung Ho Ban , Ik Kyu Kim , Ji Eun Lee
IPC分类号： H01M10/0569 , H01M10/0567 , H01M10/0525 , H01M4/131 , H01M4/36 , H01M4/525 , H01M4/505 , H01M4/133 , H01M2/16
摘要： Disclosed are an electrolyte solution for lithium secondary batteries capable of increasing the lifetime of the lithium secondary batteries and a lithium secondary battery including the same.
Provided also is an electrolyte solution for lithium secondary batteries including a lithium salt, a solvent and a negative-electrode additive. The negative-electrode additive preferably includes bis(4-(trifluoromethoxy)phenyl) oxalate represented by the following Formula 1.-
10.发明申请公开(公告)号：US20210184211A1
公开(公告)日：2021-06-17
申请号：US16883580
申请日：2020-05-26
申请人： Hyundai Motor Company , Kia Motors Corporation , Industry Academy Cooperation Foundation of Sejong University
发明人： Seung Min Oh , Sang Mok Park , Ik Kyu Kim , Yeol Mae Yeo , Yoon Sung Lee , Dong Jun Kim , Sa Heum Kim , Ji Eun Lee , Seung Taek Myung , Ji Ung Choi
IPC分类号： H01M4/505 , H01M4/131 , H01M10/0525 , H01M4/134
摘要： Provided are, inter alia, a positive electrode material for a lithium secondary battery having a high energy density with only a single positive electrode material, and a lithium secondary battery including the same. The positive electrode material for a lithium secondary battery includes a positive electrode active material formed of a Li—[Mn—Ti]—O-based material so that lithium is reversibly intercalated and deintercalated, and particularly, the positive electrode active material is doped with a dopant (Me) having an oxidation number of 2 to 6.
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