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:
Apr. 13, 2021
Filed:
Aug. 14, 2019
Samsung Sdi Co., Ltd., Yongin-si, KR;
Dong-Ho Son, Yongin-si, KR;
Kijun Kim, Yongin-si, KR;
Hyo-Jung Song, Yongin-si, KR;
Suyoun Yoon, Yongin-si, KR;
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Abstract
Disclosed are a negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same. The negative active material has an N/P ratio, which is a ratio of a maximum capacity per a unit area of a negative active material relative to maximum capacity per a unit area of a positive active material, ranging from about 1.5 to about 2. The negative active material includes a composite particle of silicon (Si) and carbon and crystalline carbon. A content of the Si is about 3 wt % to about 15 wt % based on a total weight of the negative active material.