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公开(公告)号：US11631842B2
公开(公告)日：2023-04-18
申请号：US17745172
申请日：2022-05-16
发明人： Dongwook Lee , Changshin Jo , Jinwoo Lee , Kwonnam Sohn , Doo Kyung Yang , Won-Gwang Lim
摘要： Porous carbon particles, and a positive electrode active material and a lithium secondary battery including the same. This may improve the energy density of the lithium secondary battery by applying a porous electrode containing micropores and mesopores and having a uniform size distribution and shape as a positive electrode material.
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2.发明授权公开(公告)号：US12080888B2
公开(公告)日：2024-09-03
申请号：US17043915
申请日：2019-09-02
发明人： Dongwook Lee , Jinwoo Lee , Wongwang Lim , Kwonnam Sohn , Doo Kyung Yang , Jia Lee
CPC分类号： H01M4/583 , C01B17/00 , H01M4/0471 , H01M4/364 , H01M4/38 , H01M4/62 , H01M4/625 , H01M10/0525 , H01M2004/021 , H01M2004/028
摘要： Discussed is a sulfur-carbon composite, a method for preparing the same, and a positive electrode for a lithium secondary battery and a lithium secondary battery including the same.
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公开(公告)号：US11367866B2
公开(公告)日：2022-06-21
申请号：US16646473
申请日：2018-10-19
发明人： Dongwook Lee , Changshin Jo , Jinwoo Lee , Kwonnam Sohn , Doo Kyung Yang , Won-Gwang Lim
摘要： Porous carbon particles, and a positive electrode active material and a lithium secondary battery including the same. This may improve the energy density of the lithium secondary battery by applying a porous electrode containing micropores and mesopores and having a uniform size distribution and shape as a positive electrode material.
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4.发明授权公开(公告)号：US11923538B2
公开(公告)日：2024-03-05
申请号：US17993191
申请日：2022-11-23
发明人： Dongwook Koh , Doo Kyung Yang
CPC分类号： H01M4/366 , H01M4/134 , H01M4/137 , H01M4/382 , H01M4/628 , H01M10/052 , H01M2004/027
摘要： A negative electrode for a lithium secondary battery including a lithium metal layer; a first protective layer formed on a surface of the lithium metal layer; and a second protective layer formed on a surface of the first protective layer opposite the lithium metal layer, wherein the first protective layer and the second protective layer are different from each other in at least one property selected from the group consisting of ion conductivity and electrolyte uptake.
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公开(公告)号：US11522251B2
公开(公告)日：2022-12-06
申请号：US16649605
申请日：2018-10-08
发明人： Jieun Song , Kwonnam Sohn , Doo Kyung Yang
IPC分类号： H01M50/431 , H01M10/0525 , H01M50/403 , H01M50/449
摘要： A separator in which at least one surface of a porous base is coated with a coating layer including partially-reduced graphene oxide and a lithium ion conducting polymer, and thereby capable of resolving problems caused by lithium polysulfide occurring in a lithium secondary battery, and a lithium secondary battery including the same.
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6.发明授权公开(公告)号：US12113206B2
公开(公告)日：2024-10-08
申请号：US18490351
申请日：2023-10-19
发明人： Eunkyung Cho , Suenghoon Han , Myeong Jun Song , Il To Kim , Kwonnam Sohn , Doo Kyung Yang , Jiwon Kim , Moo Whan Shin
CPC分类号： H01M4/364 , C01B32/05 , H01M4/38 , H01M4/587 , H01M4/60 , H01M10/0525 , C01P2004/03 , C01P2006/12 , C01P2006/14 , C01P2006/40 , H01M2004/028
摘要： A carbon-sulfur composite including a carbonized metal-organic framework (MOF); and a sulfur compound introduced to at least a part of an outside surface and an inside of the carbonized metal-organic framework, wherein the carbonized metal-organic framework has a specific surface area of 1000 m2/g to 1500 m2/g, and the carbonized metal-organic framework has a pore volume of 0.1 cc/g to 10 cc/g, and a method for preparing the same.
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公开(公告)号：US12057584B2
公开(公告)日：2024-08-06
申请号：US18084261
申请日：2022-12-19
CPC分类号： H01M4/622 , C08L33/02 , H01M4/364 , H01M4/38 , H01M4/587 , H01M4/625 , H01M10/0525 , C08L2203/20 , C08L2205/025 , H01M2004/028
摘要： A binder for preparing a positive electrode of a lithium secondary battery, and a method for preparing a positive electrode using the same. The binder includes two or more different lithium-substituted polyacrylic acids with different molecular weights. The lithium-substituted polyacrylic acids include two different lithium-substituted polyacrylic acids differing in weight average molecular weight by 500,000 or more from each other.
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公开(公告)号：US11999872B2
公开(公告)日：2024-06-04
申请号：US16956413
申请日：2019-05-08
发明人： Kihyun Kim , Seungbo Yang , Jieun Song , Dongseok Shin , Doo Kyung Yang , Soohyun Kim
IPC分类号： C09D7/61 , C09D179/02 , H01M10/0525 , H01M50/446 , H01M50/451 , C08K3/04
CPC分类号： C09D7/61 , C09D179/02 , H01M10/0525 , H01M50/446 , H01M50/451 , C08K3/04
摘要： A separator for a lithium-sulfur battery and a lithium-sulfur battery including the same is provided. More particularly, a separator for a lithium-sulfur battery including a porous substrate; and a coating layer present on at least one surface of the porous substrate, wherein the coating layer includes a polymer and a graphitic carbon-based compound, wherein the polymer includes a main chain with a functional group having a non-covalent electron pair present in the main chain and a side chain with an aromatic hydrocarbon group present in the side chain.
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9.发明授权公开(公告)号：US11831010B2
公开(公告)日：2023-11-28
申请号：US17964649
申请日：2022-10-12
发明人： Eunkyung Cho , Suenghoon Han , Myeong Jun Song , Il To Kim , Kwonnam Sohn , Doo Kyung Yang , Jiwon Kim , Moo Whan Shin
IPC分类号： H01M4/36 , H01M10/0525 , H01M10/0587 , C01B32/05 , H01M4/38 , H01M4/587 , H01M4/60 , H01M4/02
CPC分类号： H01M4/364 , C01B32/05 , H01M4/38 , H01M4/587 , H01M4/60 , H01M10/0525 , C01P2004/03 , C01P2006/12 , C01P2006/14 , C01P2006/40 , H01M2004/028
摘要： A carbon-sulfur composite including a carbonized metal-organic framework (MOF); and a sulfur compound introduced to at least a part of an outside surface and an inside of the carbonized metal-organic framework, wherein the carbonized metal-organic framework has a specific surface area of 2500 m2/g to 4000 m2/g, and the carbonized metal-organic framework has a pore volume of 0.1 cc/g to 10 cc/g, and a method for preparing the same.
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10.发明授权公开(公告)号：US12034156B2
公开(公告)日：2024-07-09
申请号：US18298720
申请日：2023-04-11
发明人： Eui Tae Kim , Suenghoon Han , Kwonnam Sohn , Doo Kyung Yang
CPC分类号： H01M4/38 , H01M4/362 , H01M4/583 , H01M10/0525 , H01M2004/028 , H01M4/623
摘要： A sulfur-carbon composite including a porous carbon material; and sulfur coated on at least a portion of an inside and a surface of the porous carbon material, wherein a pore volume of the sulfur-carbon composite is 0.04 to 0.400 cm3/g and a specific surface area of the sulfur-carbon composite is 4.0 to 30 m2/g, and a method for preparing the same.
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