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1.发明公开
公开(公告)号：EP4376120A1
公开(公告)日：2024-05-29
申请号：EP23209710.5
申请日：2023-11-14
发明人： YANG, Young Mo , LA, Yun Ji , LEE, Kwang Ho , CHUNG, Ju Ho
IPC分类号： H01M4/134 , H01M4/1395 , H01M4/36 , H01M4/38 , H01M4/02
CPC分类号： H01M4/134 , H01M2004/02120130101 , H01M2004/02720130101 , H01M4/1395 , H01M4/362 , H01M4/364 , H01M4/381
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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2.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：EP4451381A1
公开(公告)日：2024-10-23
申请号：EP24160386.9
申请日：2024-02-28
申请人： SK On Co., Ltd.
发明人： LEE, Yong Seok , KIM, Sung Do , KIM, Jeong A , MOON, Joon Hyung , SEO, Seung Deok , YANG, Young Mo , JEONG, Kwang Ho , CHUNG, Ju Ho
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 siliconcontaining 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 siliconcontaining coating layer and including a silicon oxide.
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公开(公告)号：EP4401164A1
公开(公告)日：2024-07-17
申请号：EP23212751.4
申请日：2023-11-28
申请人： SK On Co., Ltd.
发明人： HAN, Jun Hee , KIM, Moon Sung , KIM, Hyo Mi , RYU, Sang Baek , YOOK, Seung Hyun , JANG, Hwan Ho , CHUNG, Da Bin , PARK, Da Hye , BANG, Sang In , YANG, Young Mo , CHUNG, Ju Ho
IPC分类号： H01M4/133 , H01M4/134 , H01M4/1393 , H01M4/1395 , H01M4/36 , H01M4/38 , H01M4/587
CPC分类号： H01M4/366 , H01M4/386 , H01M4/587 , H01M4/1395 , H01M4/1393 , H01M4/133 , H01M4/134 , H01M4/38 , H01M2004/02720130101
摘要： An anode active material for a secondary battery according to an embodiment of the present disclosure 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 at an inside of the pores or on a surface of the carbon-based particle.
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