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:
Jun. 25, 2024
Filed:
May. 09, 2019
Lg Chem, Ltd., Seoul, KR;
Ji Hee Yoon, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
A composition for coating a negative electrode active material, a negative electrode active material for a secondary battery, a negative electrode containing the same, and a lithium secondary battery containing the negative electrode. The composition for coating a negative electrode active material, includes tannic acid, a negative electrode active material for a secondary battery whose surface is coated with a tannic acid-based coating film, a negative electrode for a secondary battery, which includes the negative electrode active material, and a lithium secondary battery including the negative electrode may reduce volume expansion and prevent damage in charging/discharging of the negative electrode active material. Therefore, the secondary battery including the negative electrode ultimately improves resistance and life span characteristics.