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1.发明公开
公开(公告)号：EP4224563A1
公开(公告)日：2023-08-09
申请号：EP23154445.3
申请日：2023-02-01
申请人： SK On Co., Ltd.
发明人： LEE, Yong Seok , KIM, Jae Ram , BAE, Sang Won , SONG, Yeon Hwa , EOM, Ki Joo , LEE, Myung Ro , LEE, Jae Yeong , JANG, Hyun Joong
摘要： An anode active material for a lithium secondary battery according to embodiments of the present invention includes a carbon-based active material and a silicon-based active material including silicon-based active material particles having a particle size distribution in a range from 1 µm to 19 µm. A lithium secondary battery having improved life-span and rapid charge/discharge properties at room temperature is provided.
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2.发明公开
公开(公告)号：EP4300620A1
公开(公告)日：2024-01-03
申请号：EP23182324.6
申请日：2023-06-29
申请人： SK On Co., Ltd.
发明人： LEE, Yong Seok , KIM, Jae Ram , NA, Ji Won , BAE, Sang Won , SONG, Yeon Hwa , EOM, Ki Joo , LEE, Myung Ro , LEE, Jae Yeong , JANG, Hyun Joong
摘要： A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer formed on the cathode current collector. The cathode active material layer includes a cathode active material and a conductive material ID/IG is in a range from 0.5 to 1.25 in a Raman spectrum of the cathode active material layer. The cathode active material includes lithium metal oxide particles containing nickel and manganese and having a content of cobalt of less than 2 mol% among all elements except for lithium and oxygen.
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公开(公告)号：EP4220752A2
公开(公告)日：2023-08-02
申请号：EP23163582.2
申请日：2022-01-25
申请人： SK On Co., Ltd.
发明人： LEE, Yong Seok , MIN, Jae Yun , KIM, Jae Ram , KIM, Jung Hwa , BAE, Sang Won , BAE, Ji Hee , LEE, Myung Ro , LEE, Jae Yeong
摘要： An anode for a secondary battery includes an anode current collector, and an anode active material layer including a first anode active material layer and a second anode active material layer sequentially stacked from a surface of the anode current collector. Each of the first anode active material layer and the second anode active material layer comprises a carbon-based active material and a silicon-based active material as an anode active material, and a carbon nanotube as a conductive material. A content of the silicon-based active material in the second anode active material layer is greater than a content of the silicon-based active material in the first anode active material layer. A Raman R value of the carbon nanotube included in the second anode active material layer is smaller than a Raman R value of the carbon nanotube included in the first anode active material layer.
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公开(公告)号：EP4220752A3
公开(公告)日：2023-08-09
申请号：EP23163582.2
申请日：2022-01-25
申请人： SK On Co., Ltd.
发明人： LEE, Yong Seok , MIN, Jae Yun , KIM, Jae Ram , KIM, Jung Hwa , BAE, Sang Won , BAE, Ji Hee , LEE, Myung Ro , LEE, Jae Yeong
摘要： An anode for a secondary battery includes an anode current collector, and an anode active material layer including a first anode active material layer and a second anode active material layer sequentially stacked from a surface of the anode current collector. Each of the first anode active material layer and the second anode active material layer comprises a carbon-based active material and a silicon-based active material as an anode active material, and a carbon nanotube as a conductive material. A content of the silicon-based active material in the second anode active material layer is greater than a content of the silicon-based active material in the first anode active material layer. A Raman R value of the carbon nanotube included in the second anode active material layer is smaller than a Raman R value of the carbon nanotube included in the first anode active material layer.
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5.发明公开
公开(公告)号：EP4102598A1
公开(公告)日：2022-12-14
申请号：EP22178516.5
申请日：2022-06-10
申请人： SK On Co., Ltd.
发明人： LEE, Yong Seok , KIM, Jae Ram , KIM, Jung Hwan , MIN, Jae Yun , BAE, Sang Won , LEE, Myung Ro , LEE, Jae Yeong , JANG, Hyun Joong
摘要： A cathode composition for a lithium secondary battery includes a cathode active material that includes first cathode active material particles respectively having a secondary particle shape and second cathode active material particles respectively having a single particle shape, and a conductive material including a linear-type conductive material. A lithium secondary battery having enhanced life-span and resistance properties is provided.
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