US 12,482,853 B2
Negative electrode for rechargeable lithium battery and rechargeable lithium battery including same
Junyoung Cheong, Yongin-si (KR); Sungsu Kim, Yongin-si (KR); and Jungkun Kim, Yongin-si (KR)
Assigned to Samsung SDI Co., Ltd., Yongin-si (KR)
Filed by Samsung SDI Co., Ltd., Yongin-si (KR)
Filed on Apr. 20, 2022, as Appl. No. 17/660,004.
Claims priority of application No. 10-2021-0053157 (KR), filed on Apr. 23, 2021.
Prior Publication US 2022/0352543 A1, Nov. 3, 2022
Int. Cl. H01M 10/0525 (2010.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01)
CPC H01M 10/0525 (2013.01) [H01M 4/0404 (2013.01); H01M 4/366 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A negative electrode for a rechargeable lithium battery, comprising:
a current collector;
a first negative active material layer on the current collector and comprising a first negative active material; and
a second negative active material layer on the first negative active material layer and comprising a second negative active material,
wherein the first negative active material layer and the second negative active material layer both have a peak intensity ratio (I(002)/I(110)) of a peak intensity at a (002) plane relative to a peak intensity at a (110) plane of 1 to 150 when measured by X-ray powder diffraction (XRD) using a CuKα ray,
wherein an amount of the first negative active material in the first negative active material layer may be about 90 wt % to about 98 wt % based on the total weight of the first negative active material layer, and
the first negative active material layer and the second negative active material layer are separate layers.