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:
Oct. 29, 2024
Filed:
May. 31, 2023
Samsung Sdi Co., Ltd., Yongin-si, KR;
Ji Woo Ahn, Yongin-si, KR;
Dongwoo Kim, Yongin-si, KR;
Jaehou Nah, Yongin-si, KR;
Bumjin Chang, Yongin-si, KR;
Yurim Cha, Yongin-si, KR;
Yeonjoo Choi, Yongin-si, KR;
Ilyoung Choi, 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 including the same are disclosed, and the negative active material includes a primary particle of a crystalline carbon-based material and secondary particle that is an assembly of the primary particles, wherein a ratio of an average particle diameter (D50) of the secondary particle relative to an average particle diameter (D50) of the primary particle (average particle diameter (D50) of the secondary particle/average particle diameter (D50) of the primary particle) ranges from about 1.5 to about 5 and an aspect ratio of the primary particle ranges from about 1 to about 7.