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1.发明公开公开(公告)号：US20240021799A1
公开(公告)日：2024-01-18
申请号：US18301680
申请日：2023-04-17
发明人： Young Mo YANG , Joon Hyung MOON , Do Ae YU , Ju Ho CHUNG , Jae Young CHOI
CPC分类号： H01M4/366 , H01M4/485 , H01M4/583 , H01M2004/027
摘要： An anode active material for a secondary battery includes a plurality of composite particles. The composite particles include carbon-based particles containing pores therein. A silicon-containing coating layer is formed inside the pores or on a surface of the carbon-based particles. A surface oxide layer is formed on the silicon-containing coating layer. The surface oxide layer contains silicon oxide. A silicon oxidation number ratio of the composite particle is predefined.
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2.发明公开公开(公告)号：US20240170660A1
公开(公告)日：2024-05-23
申请号：US18498035
申请日：2023-10-31
发明人： Young Mo YANG , Yun Ji LA , Kwang Ho LEE , Ju Ho CHUNG
CPC分类号： H01M4/483 , C01B33/12 , H01M4/364 , H01M4/366 , H01M4/38 , H01M4/583 , H01M10/052 , H01M2004/027
摘要： An anode active material for a secondary battery according to an embodiment includes a plurality of a silicon-based active material particle being doped with a metal element and including pores. An average of porosity values measured for each of 10 different silicon-based active material particles among the plurality of the silicon-based active material particle is in a range from 0.2% to 9.0%.
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公开(公告)号：US20240297299A1
公开(公告)日：2024-09-05
申请号：US18589898
申请日：2024-02-28
申请人： SK ON CO., LTD.
发明人： Yong Seok LEE , Sung Do KIM , Jeong A KIM , Joon Hyung MOON , Seung Deok SEO , Young Mo YANG , Kwang Ho JEONG , Ju Ho CHUNG
IPC分类号： H01M4/36 , H01M4/02 , H01M4/04 , H01M4/133 , H01M4/137 , H01M4/1393 , H01M4/1399 , H01M4/587 , H01M4/60 , H01M10/052
CPC分类号： H01M4/366 , H01M4/0404 , H01M4/133 , H01M4/137 , H01M4/1393 , H01M4/1399 , H01M4/587 , H01M4/602 , H01M10/052 , H01M2004/027
摘要： An anode for a lithium secondary battery includes an anode current collector, a second anode active material layer disposed on the anode current collector and including a second anode active material that includes a graphite-based active material and composite particles, and a first anode active material layer disposed between the anode current collector and the second anode active material layer and including a first anode active material that includes a graphite-based active material and does not include the composite particles. Each of the composite particles includes a carbon-based particle including pores, a silicon-containing coating layer disposed on an inside of the pores of the carbon-based particle or on a surface of the carbon-based particle, and a surface oxide layer disposed on the silicon-containing coating layer and including a silicon oxide.
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公开(公告)号：US20240194861A1
公开(公告)日：2024-06-13
申请号：US18532180
申请日：2023-12-07
申请人： SK ON CO., LTD.
发明人： Jun Hee HAN , Moon Sung KIM , Hyo Mi KIM , Sang Baek RYU , Seung Hyun YOOK , Hwan Ho JANG , Da Bin CHUNG , Da Hye PARK , Sang In BANG , Young Mo YANG , Ju Ho CHUNG
IPC分类号： H01M4/36 , H01M4/485 , H01M4/587 , H01M10/052
CPC分类号： H01M4/366 , H01M4/485 , H01M4/587 , H01M10/052 , H01M2004/021
摘要： An anode active material for a secondary battery according to an embodiment of the disclosed technology includes an anode current collector, a first anode active material layer on at least one surface of the anode current collector and including a graphite-based active material and a silicon-based active material doped with a metal element, and a second anode active material layer on the first anode active material layer and including a porous structure. The porous structure includes a carbon-based particle having pores and a silicon-containing coating formed inside the pores or on a surface of the carbon-based particle.
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