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:
Nov. 18, 2025
Filed:
Feb. 22, 2023
Lg Energy Solution, Ltd., Seoul, KR;
Jun Hyeok Han, Daejeon, KR;
Su Hyeon Ji, Daejeon, KR;
Chul Haeng Lee, Daejeon, KR;
Kyoung Ho Ahn, Daejeon, KR;
Won Kyung Shin, Daejeon, KR;
Won Tae Lee, Daejeon, KR;
Young Ho Oh, Daejeon, KR;
You Kyeong Jeong, Daejeon, KR;
LG Energy Solution, Ltd., Seoul, KR;
Abstract
A lithium secondary battery has excellent economic feasibility and safety because an iron phosphate of Formula 2 having an olivine structure is included as a positive electrode active material, and also has advantages of excellent battery performance and lifespan because an electrolyte additive of Formula 1 having a specific molecular weight is included in an electrolyte to improve an increase in internal resistance of the battery during charging and discharging and effectively prevent iron ions from being exsolved from the positive electrode active material,