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. 19, 2021
Filed:
Apr. 25, 2019
Samsung Sdi Co., Ltd., Yongin-si, KR;
Jinhyon Lee, Yongin-si, KR;
Bokhyun Ka, Yongin-si, KR;
Kyeuyoon Sheem, Yongin-si, KR;
Soon Ho Ahn, Yongin-si, KR;
Junkyu Lee, Yongin-si, KR;
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Abstract
A negative electrode and a rechargeable lithium battery, the negative electrode including a current collector; and a negative active material layer on at least one surface of the current collector, the negative active material layer including a carbon negative active material and a conductive agent, wherein the conductive agent includes at least one of a fiber-shaped conductive agent having a average length of about 1 μm to about 200 μm and a particle-shaped conductive agent having a average long diameter of about 1 μm to about 20 μm, and a DD (Degree of Divergence) value defined by Equation 1 is about 24 or greater:DD (Degree of Divergence)=()*100  [Equation 1]