The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2025
Filed:
Oct. 30, 2020
Samsung Sdi Co., Ltd., Yongin-si, KR;
Dae-Hyeok Lee, Yongin-si, KR;
Young-Min Kim, Yongin-si, KR;
Jaemyung Kim, Yongin-si, KR;
Jaehou Nah, Yongin-si, KR;
Changsu Shin, Yongin-si, KR;
Jongmin Won, Yongin-si, KR;
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Abstract
A negative active material for a rechargeable lithium battery and a rechargeable lithium battery, the negative active material including secondary particles of agglomerated primary particles, the primary particles including Si particles with SiC on a surface of the Si particles; and an amorphous carbon surrounding the secondary particles, wherein a peak intensity ratio (I/I) of a peak intensity (I)) at a Si (111) plane relative to a peak intensity (I) at a SiC (111) plane is about 5 to about 50 measured by X-ray diffraction analysis using a CuKα ray.