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1.发明授权公开(公告)号：US12046715B2
公开(公告)日：2024-07-23
申请号：US17495864
申请日：2021-10-07
申请人： SK On Co., Ltd.
发明人： Sung Yon Oh , In Haeng Cho , Dong Gun Lee , Jin Haek Yang
IPC分类号： H01M10/0567 , H01M10/052 , H01M10/0568 , H01M10/0569
CPC分类号： H01M10/0567 , H01M10/052 , H01M10/0568 , H01M10/0569 , H01M2300/0025
摘要： Provided is a lithium secondary battery comprising: a cathode comprising a cathode active material, an anode comprising an anode active material, a separator interposed between the cathode and the anode, and an electrolyte for a secondary battery, wherein the cathode active material is Lix(NiaCobMnc)O2, wherein 0.90≤x≤1.10, 0.5≤a≤0.99, 0.005≤b
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2.发明授权公开(公告)号：US11664535B2
公开(公告)日：2023-05-30
申请号：US17220114
申请日：2021-04-01
申请人： SK ON CO., LTD.
发明人： In Haeng Cho , Dong Gun Lee , Joo Hyun Lee , Sung Jin Kim
IPC分类号： H01M10/0567 , C07C309/67 , C07F9/06 , H01M10/0525 , H01M10/0568 , H01M10/0569
CPC分类号： H01M10/0567 , C07C309/67 , C07F9/062 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M2300/0025
摘要： An electrolyte for a lithium secondary battery according to exemplary embodiments of the present inventing includes an organic solvent, a lithium salt, a first additive represented by a predetermined chemical formula, and a second additive represented by a predetermined chemical formula. A protective film is formed by the additives to suppress an expansion of a lithium secondary battery and improve storage property at high temperature.
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公开(公告)号：US20230130685A1
公开(公告)日：2023-04-27
申请号：US17970259
申请日：2022-10-20
发明人： Min Kyung Seon , Gwi Ok Park , Seok Keun Yoo , Dong Gun Lee , Jun Soo Son , Ju Ho Chung
摘要： Provided are a binder composition for a secondary battery, a negative electrode including the same, and a secondary battery including the same. More particularly, the binder composition for a secondary battery having a three-dimensional structure, which is prepared by mixing a copolymer having specific repeating units and a polymer-type additive containing nitrogen (N) bonded to two or three carbons (C) in the repeating unit, has excellent mechanical properties and may effectively improve a binding force. The negative electrode and the secondary battery including the binder composition for a secondary battery effectively suppress expansion of a negative electrode to manufacture a secondary battery having excellent charge/discharge cycle characteristics and battery performance.
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公开(公告)号：US20230187641A1
公开(公告)日：2023-06-15
申请号：US18078214
申请日：2022-12-09
发明人： Dong Gun Lee , Gwi Ok Park , Seok Keun Yoo , Min Kyung Seon , Jun Soo Son , Ju Ho Chung
IPC分类号： H01M4/62 , C08F216/06 , C08F220/06 , C08K5/17
CPC分类号： H01M4/622 , C08F216/06 , C08F220/06 , C08K5/17
摘要： Provided are a novel binder for a secondary battery including a copolymer containing specific repeating units, and a binder composition for a secondary battery including the binder for a secondary battery and a compound containing an amine group and a hydroxyl group. When the binder for a secondary battery or the binder composition for a secondary battery is applied to a negative electrode and a secondary battery, expansion of the negative electrode is effectively suppressed, and the charge/discharge cycle characteristics and the performance of the secondary battery are significantly improved. Furthermore, the binder for a secondary battery has improved coatability and adhesion to effectively suppress the exfoliation and desorption of the negative electrode, thereby improving the performance of the secondary battery.
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公开(公告)号：US20230127580A1
公开(公告)日：2023-04-27
申请号：US17970377
申请日：2022-10-20
发明人： Dong Gun Lee , Gwi Ok Park , Seok Keun Yoo , Min Kyung Seon , Ji Sang Jeong , Ju Ho Chung , Jun Soo Son
IPC分类号： H01M4/62 , H01M4/587 , H01M4/36 , C08F116/06
摘要： Provided are a binder for a secondary battery, a negative electrode including the same, and a secondary battery including the same. More particularly, the binder for a secondary battery including a crosslinked product of a copolymer with a silane-based crosslinking agent according to the present invention may have excellent thermal resistance and mechanical properties and effectively improve a binding force, and the negative electrode for a secondary battery and the secondary battery including the same may effectively suppress expansion of a negative electrode to improve charge/discharge cycle characteristics and performance of the secondary battery.
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6.发明公开公开(公告)号：US20240339664A1
公开(公告)日：2024-10-10
申请号：US18738191
申请日：2024-06-10
申请人： SK On Co., Ltd.
发明人： Sung Yon Oh , In Haeng Cho , Dong Gun Lee , Jin Haek Yang
IPC分类号： H01M10/0567 , H01M10/052 , H01M10/0568 , H01M10/0569
CPC分类号： H01M10/0567 , H01M10/052 , H01M10/0568 , H01M10/0569 , H01M2300/0025
摘要： Provided is a lithium secondary battery comprising: a cathode comprising a cathode active material, an anode comprising an anode active material, a separator interposed between the cathode and the anode, and an electrolyte for a secondary battery, wherein the cathode active material is Lix(NiaCobMnc)O2, wherein 0.90≤x≤1.10, 0.5≤a≤0.99, 0.005≤b
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7.发明公开公开(公告)号：US20230253625A1
公开(公告)日：2023-08-10
申请号：US18135365
申请日：2023-04-17
申请人： SK ON CO., LTD.
发明人： In Haeng Cho , Dong Gun Lee , Joo Hyun Lee , Sung Jin Kim
IPC分类号： H01M10/0567 , C07C309/67 , C07F9/06 , H01M10/0525 , H01M10/0568 , H01M10/0569
CPC分类号： H01M10/0567 , C07C309/67 , C07F9/062 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M2300/0025
摘要： An electrolyte for a lithium secondary battery according to exemplary embodiments of the present inventing includes an organic solvent, a lithium salt, a first additive represented by a predetermined chemical formula, and a second additive represented by a predetermined chemical formula. A protective film is formed by the additives to suppress an expansion of a lithium secondary battery and improve storage property at high temperature.
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公开(公告)号：US11699791B2
公开(公告)日：2023-07-11
申请号：US16992592
申请日：2020-08-13
申请人： SK ON CO., LTD.
发明人： Joon Sup Kim , Sun Young Kim , Dong Gun Lee , Jee Hee Lee
CPC分类号： H01M4/622 , H01M4/133 , H01M4/134 , H01M4/364 , H01M4/386 , H01M4/587 , H01M10/0525 , H01M2004/027
摘要： A binder for a secondary battery includes a copolymer having a first repeating unit, a second repeating unit, and a third repeating unit. A ratio of a number of the first repeating unit (A) and a sum of a number of the second repeating unit and a number of the third repeating unit (B) is 90:10 to 52:48. A ratio of the number of the second repeating unit and the number of the third repeating unit is 67:33 to 1:99. A weight average molecular weight of the copolymer is 225,000 to 2,000,000.
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公开(公告)号：US20240136527A1
公开(公告)日：2024-04-25
申请号：US18378497
申请日：2023-10-10
发明人： Jun Soo Son , Min Kyung Seon , Dong Gun Lee , Kwang Ho Jung , Seung Deok Seo
IPC分类号： H01M4/62 , H01M4/38 , H01M4/583 , H01M10/052
CPC分类号： H01M4/622 , H01M4/386 , H01M4/583 , H01M10/052 , H01M2004/027
摘要： Provided is a binder for a secondary battery including a copolymer including repeating units of the Chemical Formula 1, Chemical Formula 2, Chemical Formula 3, and Chemical Formula 4 disclosed herein. When the binder for a secondary battery is applied to a negative electrode and a secondary battery, expansion of the negative electrode may be effectively suppressed. Furthermore, the binder for a secondary battery has improved adhesion to effectively suppress exfoliation and desorption of a negative electrode, thereby manufacturing a secondary battery having significantly improved charge/discharge cycle characteristics and battery performance by using the binder.
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公开(公告)号：US20230299296A1
公开(公告)日：2023-09-21
申请号：US18323434
申请日：2023-05-25
申请人： SK ON CO., LTD.
发明人： Joon Sup Kim , Sun Young Kim , Dong Gun Lee , Jee Hee Lee
CPC分类号： H01M4/622 , H01M4/133 , H01M4/134 , H01M4/364 , H01M4/587 , H01M10/0525 , H01M4/386 , H01M2004/027
摘要： A binder for a secondary battery includes a copolymer having a first repeating unit, a second repeating unit, and a third repeating unit. A ratio of a number of the first repeating unit (A) and a sum of a number of the second repeating unit and a number of the third repeating unit (B) is 90:10 to 52:48. A ratio of the number of the second repeating unit and the number of the third repeating unit is 67:33 to 1:99. A weight average molecular weight of the copolymer is 225,000 to 2,000,000.
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