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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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2.发明授权公开(公告)号：US10601051B2
公开(公告)日：2020-03-24
申请号：US15829887
申请日：2017-12-02
发明人： Yeol Mae Yeo , Ki Seok Koh , Yoon Sung Lee , Seung Min Oh , Sang Mok Park
IPC分类号： H01M4/02 , H01M4/80 , H01M10/0585 , H01M10/04 , H01M4/66 , H01M10/0562 , H01M10/058
摘要： Provided are a method of manufacturing an all-solid battery and an all-solid battery manufactured by the same for efficiently insulating an edge portion of the all-solid battery. Particularly, the all-solid batter may include a hybrid current collector comprising a porous metal current collector at the edge portions thereof, and a cathode layer or an anode layer may be further fabricated by coating a cathode active material or an anode active material on the hybrid current collector. Therefore, a short-circuit of the edge portion that may occur due to the detachment of the electrode material at the edge portion of the electrode may be prevented and a use rate and energy density of the edge portion electrode may be improved.
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公开(公告)号：US10727525B2
公开(公告)日：2020-07-28
申请号：US15846056
申请日：2017-12-18
申请人： HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION , THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY
发明人： Ki Seok Koh , Yeol Mae Yeo , Jung Je Woo , Seung Min Oh , Yoon Sung Lee , Kyung Jin Lee , Hyo Jin Kim
IPC分类号： H01M10/654 , H01M2/16 , H01M10/42 , H01M10/04 , C08J5/22 , C08J7/04 , H01M10/0525 , H01M10/613
摘要： A lithium ion battery including a core-shell structured fire extinguishing particle is disclosed. When the battery is overheated to a predetermined temperature, a shell of the fire extinguishing particle coated on one surface or both surfaces of a porous separator is melted, a fire extinguishing material disposed in an inner space of the shell is released into an electrolytic solution of the battery, and as a result, it is possible to prevent the battery from being ignited or exploded even though the battery is overheated. Further, the melted shell clogs pores of the porous separator to block lithium ions from moving, such that the battery is blocked from being driven, thereby preventing the battery from being overheated any more.
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公开(公告)号：US10971710B2
公开(公告)日：2021-04-06
申请号：US16157910
申请日：2018-10-11
发明人： Yeol Mae Yeo , Ki Seok Koh , Yoon Sung Lee , Seung Min Oh , Hong Seok Min
IPC分类号： H01M2/16 , H01M10/0585 , H01M4/04 , H01M10/0562 , H01M10/04 , H01M2/14 , H01M10/0525 , H01M4/02
摘要： A method of manufacturing the all-solid battery includes steps of: forming a cathode layer; forming an anode layer; forming an electrolyte layer between the cathode layer and the anode layer; and forming an insulation layer using a baroplastic polymer at an edge portion of the battery. The step of forming the insulation layer comprises: forming a coating layer through coating of the edge portion of the battery with the baroplastic polymer; and shaping the baroplastic polymer through pressing of the coating layer.
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公开(公告)号：US20190123325A1
公开(公告)日：2019-04-25
申请号：US15848742
申请日：2017-12-20
发明人： Sang Mok Park , Yoon Sung Lee , Seung Min Oh , Ki Seok Koh , Yeol Mae Yeo
IPC分类号： H01M2/16 , H01M10/42 , H01M10/052 , H01M10/0562 , H01M4/66
摘要： The present invention provides a secondary battery that includes a metal ion receptor, which can absorb metal dendrites generated on the surface of a cathode while the battery is used, in a battery cell, whereby it is possible to improve safety by suppressing growth of dendrites and preventing a short due to a dendrite by making metal dendrites be absorbed in the metal ion receptor before the dendrites growing on the surface of the cathode reach the surface of an anode.
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6.发明申请公开(公告)号：US20190074521A1
公开(公告)日：2019-03-07
申请号：US15829887
申请日：2017-12-02
发明人： Yeol Mae Yeo , Ki Seok Koh , Yoon Sung Lee , Seung Min Oh , Sang Mok Park
IPC分类号： H01M4/80 , H01M4/66 , H01M10/0562 , H01M10/058 , H01M10/04
CPC分类号： H01M4/80 , H01M4/661 , H01M10/04 , H01M10/049 , H01M10/0562 , H01M10/058 , H01M10/0585 , H01M2220/20 , H01M2300/0068 , H01M2300/0071
摘要： Provided are a method of manufacturing an all-solid battery and an all-solid battery manufactured by the same for efficiently insulating an edge portion of the all-solid battery. Particularly, the all-solid batter may include a hybrid current collector comprising a porous metal current collector at the edge portions thereof, and a cathode layer or an anode layer may be further fabricated by coating a cathode active material or an anode active material on the hybrid current collector. Therefore, a short-circuit of the edge portion that may occur due to the detachment of the electrode material at the edge portion of the electrode may be prevented and a use rate and energy density of the edge portion electrode may be improved.
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公开(公告)号：US20180175443A1
公开(公告)日：2018-06-21
申请号：US15720721
申请日：2017-09-29
发明人： Seung Min Oh , Ki Seok Koh , Yeol Mae Yeo
IPC分类号： H01M10/0525 , H01M4/64 , H01M2/20 , H01M10/04
CPC分类号： H01M10/0525 , H01M2/1673 , H01M2/202 , H01M4/13 , H01M4/64 , H01M4/80 , H01M10/0459 , H01M10/058 , H01M2004/027 , H01M2004/028 , Y02E60/122
摘要： A lithium ion secondary battery includes an electrode assembly having a separator, a collector layer stacked on either side of the separator, and a positive electrode active material and a negative electrode active material formed on respective outer surfaces of the collector layer. The electrode assembly causes lithium ions to move to an inside of the separator by liquid electrolyte, which moves to the positive electrode active material and the negative electrode active material, thereby causing a charging/discharging reaction inside the collector layer.
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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：US20190074516A1
公开(公告)日：2019-03-07
申请号：US15831137
申请日：2017-12-04
发明人： Seung Min Oh , Yoon Sung Lee , Ki Seok Koh , Yeol Mae Yeo
IPC分类号： H01M4/62 , H01M10/0525 , H01M4/583 , H01M4/38
摘要： Provided are electrode slurry including (A) an electrode active material, (B) a conductive material, and (C) a binder containing a cellulose compound, styrene-butadiene rubber and lithium polyacrylic acid at the same time, and an electrode and a lithium secondary battery including the slurry.
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10.发明授权公开(公告)号：US11855261B2
公开(公告)日：2023-12-26
申请号：US17192009
申请日：2021-03-04
发明人： Yeol Mae Yeo , Ki Seok Koh , Yoon Sung Lee , Seung Min Oh , Hong Seok Min , Sung Min Choi
IPC分类号： H01M10/0587 , H01M10/0525 , H01M50/44 , H01M50/403 , H01M50/414 , H01M10/14 , C08J3/12 , C08J3/18 , H01M10/42 , H01M50/491 , H01M50/443 , H01M10/052
CPC分类号： H01M10/0587 , C08J3/12 , C08J3/18 , H01M10/0525 , H01M10/14 , H01M10/4235 , H01M50/403 , H01M50/414 , H01M50/44 , H01M50/443 , H01M50/491 , H01M10/052 , H01M2220/20 , Y02E60/10
摘要： Disclosed are a separator for secondary batteries with enhanced stability and a method of manufacturing the separator. The separator can prevent self-discharge which may occur when a porous non-woven fabric material is used for a separator; can perform a shutdown function at a high temperature of 200° C. or less; and can avoid even under harsh conditions of high temperatures, deterioration in stability caused by internal short-circuit of positive and negative electrodes. In particular, the separator for secondary batteries of the present invention includes a porous non-woven fabric material impregnated with a baroplastic polymer powder and pores of the porous non-woven fabric material are filled with the baroplastic polymer powder by pressing an assembly of the secondary battery.
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