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1.发明公开
公开(公告)号：EP4170751A1
公开(公告)日：2023-04-26
申请号：EP22202624.7
申请日：2022-10-19
发明人： KIM, Sang Bok , PARK, Sang Min , CHOI, Ji Hoon , SUNG, Jung Moon , SHIN, Sang Hye , LEE, Ji Sun , CHOI, Jae Young
IPC分类号： H01M4/36 , H01M4/46 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/62 , H01M10/0525 , H01M50/105 , H01M4/02
摘要： Embodiments of the present invention provide a cathode active material for a lithium secondary battery. The cathode active material for a lithium secondary battery includes lithium-transition metal composite oxide particles, and a coating formed on each of the lithium-transition metal composite oxide particles. The coating includes a lithium-sulfur compound and a metal hydroxide. A residual lithium on a surface of the cathode active material is sufficiently removed to improve an ionic conductivity and low-resistance.
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2.发明公开
公开(公告)号：EP4366019A1
公开(公告)日：2024-05-08
申请号：EP23207561.4
申请日：2023-11-02
发明人： PARK, Ki Sung , SHIN, Sang Hye
IPC分类号： H01M10/0525 , H01M10/0567 , H01M10/0569 , H01M10/42
CPC分类号： H01M10/0567 , H01M10/0525 , H01M10/0569 , H01M10/4235 , H01M2300/003720130101
摘要： An electrolyte for a lithium secondary battery includes a lithium salt, an organic solvent, and a compound represented by a certain chemical formula. A lithium secondary battery includes a case, an electrode assembly including an anode and a cathode stacked repeatedly and alternately, and the electrolyte solution accommodated in the case together with the electrode assembly.
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公开(公告)号：EP4365980A1
公开(公告)日：2024-05-08
申请号：EP23201970.3
申请日：2023-10-05
CPC分类号： H01M4/366 , H01M4/386 , H01M4/5825 , H01M4/134 , H01M2004/02720130101
摘要： Provided are a silicon oxide-based negative electrode active material for a secondary battery, a method of producing the same, and a negative electrode for a secondary battery including the same. The present exemplary embodiment provides a negative electrode active material for a secondary battery including: a silicon oxide particle including a metal silicate; and a hydrocarbon coating layer on the silicon oxide particle, wherein a peak Pa is detected in 2880 cm-1 to 2950 cm-1 and a peak Pb is detected in 2800 cm-1 to 2865 cm-1 in FT-IR spectral analysis of the negative electrode active material. According to the exemplary embodiment, the hydrocarbon coating layer having a specific composition is prepared on the silicon oxide particle to prevent elution of residual metal in the silicon oxide particle to increase slurry stability, and in particular, even when the slurry is left for a long time, slurry gas emission may be significantly decreased to increase slurry stability.
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公开(公告)号：EP4190744A1
公开(公告)日：2023-06-07
申请号：EP22210670.0
申请日：2022-11-30
IPC分类号： C01B25/30 , C01B33/32 , H01M4/58 , H01M10/0525
摘要： An anode active material for a lithium secondary battery is provided which includes a composite including: a silicon-based material including a lithium silicate; and a lithium-containing phosphate, wherein a peak intensity ratio B/A is 0.01 to 0.5, wherein A is a peak intensity at 2θ = 28.5°, and B is a peak intensity at 2θ = 22.3°, when an X-ray diffraction (XRD) analysis is performed using a Cu-Kα ray.
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公开(公告)号：EP4141991A1
公开(公告)日：2023-03-01
申请号：EP22155587.3
申请日：2022-02-08
申请人： SK On Co., Ltd.
发明人： OH, Sung Yon , SHIN, Sang Hye , SHIM, Yu Na
IPC分类号： H01M4/36 , H01M4/38 , H01M4/48 , H01M4/587 , H01M10/0525 , H01M10/0567 , H01M50/105
摘要： An electrolyte solution for a secondary battery according to an exemplary embodiment includes a lithium salt, a non-aqueous organic solvent, and a silatrane-based compound represented by Chemical Formula 1. By including the electrolyte solution for a secondary battery according to an exemplary embodiment, a secondary battery can exhibit improved storage characteristics and improved capacity characteristics.
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公开(公告)号：EP4215493A2
公开(公告)日：2023-07-26
申请号：EP23152639.3
申请日：2023-01-20
申请人： SK On Co., Ltd.
发明人： KWEON, Hee Jun , KIM, Sang Bok , PARK, Sang Min , SHIN, Sang Hye , LEE, Tae Kyoung , CHOI, Ji Hoon
摘要： A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a lithium metal oxide particle that contains tungsten and has a secondary shape in which a plurality of primary particles are aggregated. The lithium metal oxide particle includes a sulfur-containing portion formed between the primary particles in an inner region of the lithium metal oxide particle.
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公开(公告)号：EP4215493A3
公开(公告)日：2023-08-02
申请号：EP23152639.3
申请日：2023-01-20
申请人： SK On Co., Ltd.
发明人： KWEON, Hee Jun , KIM, Sang Bok , PARK, Sang Min , SHIN, Sang Hye , LEE, Tae Kyoung , CHOI, Ji Hoon
摘要： A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a lithium metal oxide particle that contains tungsten and has a secondary shape in which a plurality of primary particles are aggregated. The lithium metal oxide particle includes a sulfur-containing portion formed between the primary particles in an inner region of the lithium metal oxide particle.
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8.发明公开
公开(公告)号：EP4057382A1
公开(公告)日：2022-09-14
申请号：EP22160613.0
申请日：2022-03-07
发明人： PARK, Sang Min , LEE, Tae Kyoung , KIM, Sang Bok , KIM, Jik Soo , SHIN, Sang Hye , SHIM, Yu Na , YOON, Jeong Bae
摘要： The cathode active material for a lithium secondary battery according to embodiments of the present invention includes lithium-transition metal composite oxide particles including a plurality of primary particles, and the lithium-transition metal composite oxide particles have a lithium-potassium-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.
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