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1.发明公开公开(公告)号：US20230395792A1
公开(公告)日：2023-12-07
申请号：US18093463
申请日：2023-01-05
发明人： Eun Jun PARK , Joon Hyung Moon , Jung Hyun Yun
IPC分类号： H01M4/485 , H01M4/04 , H01M10/052
CPC分类号： H01M4/485 , H01M4/0404 , H01M4/0471 , H01M10/052 , H01M2004/027
摘要： Provided are a negative electrode including a silicon-based negative electrode active material and a secondary battery including the same. The 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: [Relation 1] 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 or 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 515±15 cm−1, and Ib is a peak intensity at 470±30 cm−1.
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2.发明申请公开(公告)号：US20220149358A1
公开(公告)日：2022-05-12
申请号：US17524430
申请日：2021-11-11
发明人： Joon Hyung Moon , Gwi Ok Park , Eun Jun Park , Joon Sup Kim , Seok Keun Yoo , Ju Ho Chung
摘要： Provided is a negative electrode active material for a lithium secondary battery including a core-shell composite including: a core including a silicon oxide (SiOx, 0
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公开(公告)号：US20220123290A1
公开(公告)日：2022-04-21
申请号：US17506908
申请日：2021-10-21
发明人： Ju Ho Chung , Joon Sup Kim , Gwi Ok Park , Eun Jun Park , Kyeong Hyeon Kang , Joon Hyung Moon
摘要： An anode composition for a lithium secondary battery according to an embodiment of the present invention includes a metal-doped silicon oxide (SiOx, 0
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