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1.发明公开
公开(公告)号：EP4447162A2
公开(公告)日：2024-10-16
申请号：EP24197652.1
申请日：2023-03-29
发明人： MOON, Joon Hyung , PARK, Eun Jun , YU, Do Ae , CHUNG, Ju Ho
IPC分类号： H01M4/58
摘要： An anode active material for a secondary battery according to an embodiment of the present invention includes lithium-silicon composite oxide particle. The lithium-silicon composite oxide particles include at least one of Li 2 SiO 3 and Li 2 Si 2 O 5 and have a phase fraction ratio defined by Equation 1 of 1.0 or less. A content of particles having a diameter of less than 3 µm is 5 vol% or less based on a total volume of the lithium-silicon composite oxide particles.
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公开(公告)号：EP4345944A2
公开(公告)日：2024-04-03
申请号：EP23191075.3
申请日：2023-08-11
发明人： MOON, Joon Hyung , PARK, Eun Jun , YUN, Jung Hyun , CHUNG, Ju Ho
摘要： An anode active material for a lithium secondary battery and a lithium secondary battery including the same are provided. The anode active material includes a silicon-based active material particle, and a plurality of composite particles each including a carbon coating layer formed on at least a portion of a surface of the silicon-based active material particle, wherein a relative standard deviation of G/Si peak intensity ratios of a Raman spectrum as defined in Equation 1 measured for each of 50 different composite particles among the plurality of composite particles is 50% or less.
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公开(公告)号：EP4293740A1
公开(公告)日：2023-12-20
申请号：EP23177806.9
申请日：2023-06-06
发明人： MOON, Joon Hyung , PARK, Eun Jun , YUN, Jung Hyun , CHUNG, Ju Ho
IPC分类号： H01M4/04 , H01M4/133 , H01M4/134 , H01M4/1393 , H01M4/1395 , H01M4/36 , H01M4/38 , H01M4/583 , H01M10/052 , H01M4/02
摘要： An anode active material for a lithium secondary and a lithium second battery including the same are provided. The anode active material includes a plurality of carbon-based particles containing pores therein, and a silicon-containing coating formed at an inside of the pores or on a surface of each of the carbon-based particles. A relative standard deviation of D/G peak intensity ratios of a Raman spectrum measured for 50 different carbon-based particles among the plurality of carbon-based particles is 10 % or less.
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4.发明公开
公开(公告)号：EP4340064A1
公开(公告)日：2024-03-20
申请号：EP23164927.8
申请日：2023-03-29
发明人： MOON, Joon Hyung , PARK, Eun Jun , YU, Do Ae , CHUNG, Ju Ho
摘要： An anode active material for a secondary battery according to an embodiment of the present invention includes lithium-silicon composite oxide particle. The lithium-silicon composite oxide particles include at least one of Li 2 SiO 3 and Li 2 Si 2 O 5 and have a phase fraction ratio defined by Equation 1 of 1.0 or less. A content of particles having a diameter of less than 3 µm is 5 vol% or less based on a total volume of the lithium-silicon composite oxide particles.
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5.发明公开
公开(公告)号：EP4300613A1
公开(公告)日：2024-01-03
申请号：EP23170512.0
申请日：2023-04-27
发明人： YANG, Young Mo , MOON, Joon Hyung , YU, Do Ae , CHUNG, Ju Ho , CHOI, Jae Young
IPC分类号： H01M4/04 , H01M4/133 , H01M4/134 , H01M4/1393 , H01M4/1395 , H01M4/36
摘要： An anode active material for a secondary battery according to an embodiment of the present invention includes a plurality of a composite particle. The composite particle includes a carbon-based particle containing pores therein, a silicon-containing coating layer formed at an inside of the pores and/or on a surface of the carbon-based particle, and a surface oxide layer formed on the silicon-containing coating layer. The surface oxide layer contains silicon oxide. A silicon oxidation number ratio defined by Equation 1 of the composite particle is 0.6 or less.
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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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8.发明公开
公开(公告)号：EP4254555A1
公开(公告)日：2023-10-04
申请号：EP23165012.8
申请日：2023-03-29
申请人： SK On Co., Ltd.
发明人： MOON, Joon Hyung , PARK, Eun Jun , CHUNG, Ju Ho
摘要： Provided is a negative electrode active material for a secondary battery including a core-shell composite including: a core including a silicon oxide (SiO x , 0
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9.发明公开
公开(公告)号：EP4210126A1
公开(公告)日：2023-07-12
申请号：EP23150418.4
申请日：2023-01-05
申请人： SK On Co., Ltd.
发明人： PARK, Eun Jun , MOON, Joon Hyung , YUN, Jung Hyun
IPC分类号： H01M4/04 , H01M4/134 , H01M4/1395 , H01M4/38 , H01M4/02
摘要： Provided are a negative electrode including a silicon-based negative electrode active material and a secondary battery including the same. According to an exemplary embodiment of the present invention, a negative electrode for a secondary battery including: a current collector and a negative electrode active material layer including a plurality of silicon-based active material particles, which is positioned on the current collector may be provided, wherein the following Relation is satisfied: 0.01 ≤ A − B ≤ 0.81 wherein A is an average value of Raman spectrum peak intensity ratios Ia/Ib for 50 silicon-based active material particles randomly selected in the negative electrode active material layer, B is an average value of values excluding top 10 values and bottom 10 values, for each Raman spectrum peak intensity ratio Ia/Ib value for the 50 silicon-based active material particles, Ia is a peak intensity at 515115 cm -1 , and Ib is a peak intensity at 470130 cm -1 .
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公开(公告)号：EP4105175A1
公开(公告)日：2022-12-21
申请号：EP22178782.3
申请日：2022-06-13
申请人： SK On Co., Ltd.
发明人： MOON, Joon Hyung , PARK, Eun Jun , CHUNG, Ju Ho , PARK, Gwi Ok , YOO, Seok Keun
摘要： Provided is a negative electrode active material for a lithium secondary battery including: a silicon oxide (SiO x , 0
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