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1.
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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2.
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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3.
公开(公告)号:US20220293936A1
公开(公告)日:2022-09-15
申请号:US17691455
申请日:2022-03-10
申请人: SK ON CO., LTD.
发明人: Jae Ho Choi , Sang Bok Kim , Jik Soo Kim , Hyo Shin Kwak , Myoung Lae Kim , Joo Hyun Lee
摘要: Provided is a cathode active material for a lithium secondary battery and a method of manufacturing the same. The cathode active material for a lithium secondary battery includes a lithium metal oxide particle and a water-soluble polymer, and may have a secondary particle structure in which the lithium metal oxide particle and the water-soluble polymer are aggregated.
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4.
公开(公告)号:US11728515B2
公开(公告)日:2023-08-15
申请号:US17186152
申请日:2021-02-26
申请人: SK ON CO., LTD.
发明人: Sung Jin Kim , Dai In Park , Myoung Lae Kim , Joo Hyun Lee
IPC分类号: H01M10/0567 , H01M10/0525 , H01M10/0568 , H01M10/0569
CPC分类号: H01M10/0567 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M2300/0028
摘要: An electrolyte for a lithium secondary battery according to embodiments of the present invention includes an organic solvent, a lithium salt, and an additive including a cyclic ether-sulfate-based compound. Thereby, cycle characteristics and high-temperature stability of the lithium secondary battery may be improved.
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