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公开(公告)号：EP4354555A1
公开(公告)日：2024-04-17
申请号：EP23202521.3
申请日：2023-10-09
IPC分类号： H01M4/62 , H01M4/04 , C08F220/06 , C08F222/38 , H01M4/134 , H01M4/1395 , H01M4/38 , H01M10/0525 , H01M4/02
CPC分类号： H01M10/0525 , H01M2004/02720130101 , H01M4/134 , H01M4/1395 , H01M4/0404 , H01M4/386 , C08F222/38 , C08F220/06 , H01M4/622
摘要： Provided is a binder for a secondary battery including a copolymer comprising specific repeating units, and 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 active material, 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：EP4170757A1
公开(公告)日：2023-04-26
申请号：EP22202961.3
申请日：2022-10-21
发明人： LEE, Dong Gun , PARK, Gwi Ok , YOO, Seok Keun , SEON, Min Kyung , JEONG, Ji Sang , CHUNG, Ju Ho , SON, Jun Soo
IPC分类号： H01M4/62 , H01M4/133 , C08F8/30 , C08F220/06 , C08F220/18 , C08L29/04 , H01M4/134 , H01M4/36 , H01M4/38 , H01M4/583 , H01M10/0525 , H01M4/02
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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公开(公告)号：EP4195327A1
公开(公告)日：2023-06-14
申请号：EP22210747.6
申请日：2022-12-01
发明人： LEE, Dong Gun , PARK, Gwi Ok , YOO, Seok Keun , SEON, Min Kyung , SON, Jun Soo , CHUNG, Ju Ho
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：EP4170756A1
公开(公告)日：2023-04-26
申请号：EP22202952.2
申请日：2022-10-21
发明人： SEON, Min Kyung , PARK, Gwi Ok , YOO, Seok Keun , LEE, Dong Gun , SON, Jun Soo , CHUNG, Ju Ho
IPC分类号： H01M4/62 , H01M4/134 , H01M10/0525 , H01M4/133 , H01M4/36 , C08F220/06 , C08F220/18 , C08F8/00 , C08F8/28 , C08F8/30 , C08L29/04 , H01M4/38 , H01M4/583 , H01M4/02
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：EP4170747A1
公开(公告)日：2023-04-26
申请号：EP22202964.7
申请日：2022-10-21
发明人： LEE, Dong Gun , PARK, Gwi Ok , SON, Jun Soo , YOO, Seok Keun , CHUNG, Ju Ho
IPC分类号： H01M4/133 , C08F8/30 , C08F220/06 , C08F220/18 , C08L29/04 , H01M4/134 , H01M4/36 , H01M4/38 , H01M4/583 , H01M4/62 , H01M10/0525 , H01M4/02
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 prepared by reacting a copolymer including specific repeating units and a crosslinking agent including two or more aldehyde groups has excellent mechanical properties and effectively improves a binding force. The negative electrode and the secondary battery including the binder 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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6.发明公开
公开(公告)号：EP3890090A1
公开(公告)日：2021-10-06
申请号：EP21166483.4
申请日：2021-03-31
发明人： CHO, In Haeng , LEE, Dong Gun , LEE, Joo Hyun , KIM, Sung Jin
IPC分类号： H01M10/0525 , H01M10/0567 , H01M10/0568 , H01M10/0569 , C07F9/06
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：EP4009396A1
公开(公告)日：2022-06-08
申请号：EP21211368.2
申请日：2021-11-30
发明人： KIM, Joon-Sup , PARK, Gwi Ok , JEONG, Ji Sang , SEON, Min Kyung , LEE, Dong Gun , KIM, Sun Young
IPC分类号： H01M4/04 , H01M4/133 , H01M4/134 , H01M4/1395 , H01M4/62 , H01M10/0525
摘要： The present invention relates to a binder for an anode for a secondary battery, an anode including the binder, and a secondary battery including the anode. More particularly, the present invention relates to a binder for an anode for a secondary battery that has excellent heat resistance and mechanical properties and an improved binding force because a copolymer according to the present invention is used for the binder, and an anode for a secondary battery. In addition, according to the present invention, expansion and shrinkage of the anode may be efficiently suppressed, such that charge and discharge life characteristics and performance of the secondary battery may be improved.
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公开(公告)号：EP3958364A1
公开(公告)日：2022-02-23
申请号：EP21192224.0
申请日：2021-08-19
发明人： KIM, Sun Young , KWON, Tae Wook , BAE, Heung Taek , LEE, Dong Gun , KIM, Yun Bong , SEON, Min Kyung
IPC分类号： H01M10/0525 , H01M50/409 , H01M50/414 , H01M50/42 , H01M50/423 , H01M50/431 , H01M50/446 , H01M50/449
摘要： Provided are a composite separator including a coating layer including inorganic particles and a binder formed on a porous substrate, which has improved coatability and improved thermal shrinkage, and a lithium secondary battery using the same.
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