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:
Feb. 23, 2021
Filed:
Sep. 06, 2017
Samsung Sdi Co., Ltd., Yongin-si, KR;
Jaehyuk Kim, Yongin-si, KR;
Soonsung Seo, Yongin-si, KR;
Hana Yoo, Yongin-si, KR;
Heeyoung Chu, Yongin-si, KR;
Deokhyun Kim, Yongin-si, KR;
Yungu Cho, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
Provided are a negative active material, an anode and a lithium secondary battery including the same, and a method of preparing the negative active material. The negative active material includes a silicon alloy core including silicon, iron, and manganese, and a shell including a metal oxide on the silicon alloy core, the metal oxide including one or more of titanium, zirconium, aluminum, cobalt, or lithium. An amount of the metal oxide may be from greater than 0 wt % to less than about 12 wt % based on a total weight of the negative active material.