-
公开(公告)号：US20240113290A1
公开(公告)日：2024-04-04
申请号：US18457952
申请日：2023-08-29
发明人： Joon Hyung MOON , Eun Jun PARK , Jung Hyun YUN , Ju Ho CHUNG
CPC分类号： H01M4/386 , H01M4/0404 , H01M4/0471 , H01M4/364 , H01M4/48 , H01M4/622 , H01M4/625 , H01M10/0525
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 plurality of composite particles, each composite particle including a silicon-based active material particle including silicon; and 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.
-
公开(公告)号：US20240116765A1
公开(公告)日：2024-04-11
申请号：US18481753
申请日：2023-10-05
发明人： Eun Jun PARK , Sang Hye SHIN , Nak Won KIM , Joon Hyung MOON , Jung Hyun YUN
IPC分类号： C01B33/187 , H01M10/052
CPC分类号： C01B33/187 , H01M10/052 , C01P2002/74 , C01P2002/82 , C01P2006/40
摘要： Silicon oxide-based negative electrode active materials and negative electrodes for a secondary battery are disclosed. In an embodiment, a negative electrode active material for a secondary battery includes a silicon oxide particle including a metal silicate; and a hydrocarbon coating layer on the silicon oxide particle, wherein a peak Pa in a Fourier transform infrared (FT-IR) spectral analysis of the negative electrode active material is detected in a range from 2880 cm−1 to 2950 cm−1 and a peak Pb in a FT-IR spectral analysis of the negative electrode active material is detected in a range from 2800 cm−1 to 2865 cm−1.
-
3.发明公开公开(公告)号：US20240170654A1
公开(公告)日：2024-05-23
申请号：US18459432
申请日：2023-09-01
发明人： Min Suk KANG , Ji Yae DO , Min Cheol BEAK , Jung Hyun YUN , Kwang Ho LEE , Hyun Ji LEE
IPC分类号： H01M4/36 , H01M4/58 , H01M4/583 , H01M10/052
CPC分类号： H01M4/366 , H01M4/5825 , H01M4/583 , H01M10/052 , H01M2004/028
摘要： A cathode active material for a lithium secondary battery according to an embodiment includes a plurality of a lithium metal oxide particle that include a core containing a lithium iron phosphate-based compound and being doped with at least one metal element of Ti, V and Mn; and a carbon coating formed of the core. A ratio of an intensity of a peak corresponding to PO4 relative to an intensity of a D band measured by a Raman spectroscopy analysis is in a range from 0.10 to 0.33.
-
公开(公告)号：US20230411606A1
公开(公告)日：2023-12-21
申请号：US18333806
申请日：2023-06-13
发明人： Joon Hyung MOON , Eun Jun PARK , Jung Hyun YUN , Ju Ho CHUNG
CPC分类号： H01M4/366 , H01M4/583 , H01M4/386 , H01M4/625 , H01M10/052 , H01M4/0471 , H01M2004/027
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 one or more pores therein, and a silicon-containing coating formed inside the pores and/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.
-
-
-
搜索结果
4 条记录 (耗时 0.018 秒)
