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1.
公开(公告)号:US11811090B1
公开(公告)日:2023-11-07
申请号:US18331449
申请日:2023-06-08
发明人: Won Sub Kwack , Tae Wook Kwon , Heung Taek Bae , Chang Hee Lee
IPC分类号: H01M50/403 , H01M50/446 , H01M50/449 , H01M10/0525
CPC分类号: H01M50/446 , H01M10/0525 , H01M50/403 , H01M50/449
摘要: The present invention relates to a separator, a method of manufacturing the separator, and an electrochemical device including the separator. An embodiment of the present invention may provide a separator including: a porous substrate; an inorganic particle layer provided on at least one surface of the porous substrate; and a heat fusion layer provided on at least one surface of the inorganic particle layer, wherein a surface gloss value at 60° C. of a surface of the heat fusion layer is 10 GU or more.
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2.
公开(公告)号:US10854864B2
公开(公告)日:2020-12-01
申请号:US16543994
申请日:2019-08-19
发明人: Yun Bong Kim , Won Sub Kwack , Hye Jin Kim , Su Ji Lee , Kyu Young Cho
IPC分类号: H01M4/02 , H01M2/16 , H01M10/0525
摘要: Provided are a separator for a lithium secondary battery and a lithium secondary battery comprising the same. The separator for a lithium secondary battery includes: a porous substrate; and a coating layer disposed on one side or both sides of the porous substrate and including a first inorganic particle and a second inorganic particle having different lengths of a major axis, and a binder, wherein a moisture content is less than 800 ppm after being left for 12 hours at a temperature of 40° C. and relative humidity of 90%.
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公开(公告)号:US10431805B2
公开(公告)日:2019-10-01
申请号:US15366649
申请日:2016-12-01
发明人: Hye Jin Kim , Won Sub Kwack , Min Sang Park
摘要: A separator for a secondary cell includes a porous polymer substrate having a first surface, a second surface opposing the first surface, and a plurality of pores connecting the first surface to the second surface; and heat-resistant coating layers formed on at least one of the first surface and the second surface of the porous polymer substrate and on internal surfaces of the pores using an atomic layer deposition process (ALD). Pores having a non-coated region are present in the internal surfaces of the pores.
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4.
公开(公告)号:US12113239B2
公开(公告)日:2024-10-08
申请号:US18331554
申请日:2023-06-08
发明人: Heung Taek Bae , Chang Hee Lee , Won Sub Kwack , Tae Wook Kwon
IPC分类号: H01M50/446 , H01M10/052 , H01M50/403 , H01M50/449
CPC分类号: H01M50/446 , H01M10/052 , H01M50/403 , H01M50/449
摘要: Provided are a separator, a method of manufacturing the separator, and an electrochemical device including the separator. According to an embodiment of the present disclosure, a separator including a porous substrate and an inorganic particle layer provided on at least one surface of the porous substrate, the inorganic particle layer including inorganic particles, a hydrolytic condensate binder of a polar silane compound, and an aqueous polymer binder, wherein an amount of change in peel strength, ΔP is 1.1 or more may be provided.
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公开(公告)号:US11969693B2
公开(公告)日:2024-04-30
申请号:US17235455
申请日:2021-04-20
发明人: Dong Jin Joo , Kyu Young Cho , Yun Bong Kim , Su Ji Lee , Won Sub Kwack , Hye Jin Kim
IPC分类号: B01D67/00 , B01D71/26 , B05C1/08 , B29C55/18 , C08J5/18 , C08J7/04 , C08L23/06 , B29C55/00 , B29K23/00
CPC分类号: B01D67/0088 , B01D71/261 , B05C1/0808 , B05C1/0813 , B05C1/0826 , B29C55/18 , C08J5/18 , C08J7/0427 , C08L23/06 , B01D2323/42 , B29C55/005 , B29K2023/0683 , C08J2323/06 , C08J2429/04 , C08J2433/04
摘要: Provided is an ultra large-width coating device applied to a consecutive process. More particularly, the present invention relates to a coating device capable of maximizing productivity by consecutively manufacturing a large-width film without reducing physical properties of the manufactured film by overcoming a problem in that a coating width is limited during a coating process using the existing contact type coating roller, and a method for manufacturing an ultra large-width membrane using the same.
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6.
公开(公告)号:US12126046B2
公开(公告)日:2024-10-22
申请号:US18331500
申请日:2023-06-08
发明人: Chang Hee Lee , Won Sub Kwack , Tae Wook Kwon , Heung Taek Bae
IPC分类号: H01M50/446 , H01M10/052 , H01M50/403 , H01M50/417
CPC分类号: H01M50/446 , H01M10/052 , H01M50/403 , H01M50/417
摘要: A separator, a method of manufacturing the separator, and an electrochemical device including the separator with the separator including: a porous substrate; and an inorganic particle layer provided on at least one surface of the porous substrate, wherein the inorganic particle layer includes inorganic particles and a hydrolytic condensate of a silane compound.
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7.
公开(公告)号:US11843125B2
公开(公告)日:2023-12-12
申请号:US16769707
申请日:2018-12-04
发明人: Hye Jin Kim , Yun Bong Kim , Suji Lee , Won Sub Kwack , Kyu Young Cho
IPC分类号: H01M50/446 , H01M10/0525 , H01M50/409 , H01M50/40 , H01M50/451 , H01M50/491 , H01M50/417 , H01M50/42 , H01M50/457
CPC分类号: H01M50/446 , H01M10/0525 , H01M50/40 , H01M50/409 , H01M50/417 , H01M50/42 , H01M50/451 , H01M50/457 , H01M50/491
摘要: The present invention relates to: a porous composite separator for a secondary battery including a porous substrate, and a coating layer formed on the porous substrate, wherein the coating layer has a plurality of inorganic particles, which are connected and fixed by a composite binder including a particulate polymer binder and an interpenetrating polymer network (IPN)-type binder having no melting point and having a thermal decomposition temperature of 300° C. or higher; and a lithium secondary battery including the same.
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公开(公告)号:US11322800B2
公开(公告)日:2022-05-03
申请号:US16660406
申请日:2019-10-22
发明人: Won Sub Kwack , Min Sang Park , Yun Bong Kim , Dong Yeon Lee , Kyu Young Cho
IPC分类号: H01M50/449 , H01M50/411 , H01M50/46
摘要: Provided are a separator for a secondary battery and an electrochemical device using the same. More specifically, provided is a composite separator having a more excellent cycle life and including a coating layer which is not easily swollen in an electrolyte solution. In the composite separator for a secondary battery according to an aspect of the present invention, distortion or lifting phenomenon is suppressed even when the heat and pressure are applied without significant decrease in permeability of the separator.
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公开(公告)号:US20220328931A1
公开(公告)日:2022-10-13
申请号:US17713525
申请日:2022-04-05
发明人: Won Sub Kwack , Sang Ick Lee , Tae Wook Kwon , Yun Bong Kim , Heung Taek Bae , Sang Yoon Ji
IPC分类号: H01M50/446 , H01M10/0525 , H01M50/491
摘要: Provided are a separator for a secondary battery, a method for manufacturing the same, and a lithium secondary battery including the same, and particularly, a separator for a secondary battery which has sufficient thermal resistance and mechanical properties even without using a polymer-based organic binder lacking chemical stability, by adopting a metal alkanoate having a polar group as a binder for binding among particles forming a porous active layer and also between the porous active layer and a porous substrate. A method for manufacturing the same, and a lithium secondary battery including the same are also provided.
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公开(公告)号:US11183736B2
公开(公告)日:2021-11-23
申请号:US16459334
申请日:2019-07-01
发明人: Kyu Young Cho , Won Sub Kwack , Yun Bong Kim , Hye Jin Kim , Su Ji Lee
IPC分类号: H01M50/446 , H01M50/449 , H01M10/0525
摘要: Provided are a composite separator and an electrochemical device using the same. More specifically, provided is a composite separator including a coating layer for improving an adhesive property between an electrode and a separator.
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