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. 10, 2025
Filed:
Mar. 28, 2024
Lg Chem, Ltd., Seoul, KR;
Seong Bae Kim, Daejeon, KR;
Yi Rang Lim, Daejeon, KR;
Kyoung Wan Park, Daejeon, KR;
Hyun Uk Kim, Daejeon, KR;
Hong Kyu Park, Daejeon, KR;
Chang Jun Moon, Daejeon, KR;
Eun Hee Kim, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
A method of preparing a positive electrode active material precursor includes forming positive electrode active material precursor particles while adding a reaction solution including a transition metal-containing solution, an ammonium ion-containing solution, and a basic aqueous solution to a reactor with a filtration device installed therein. The method further includes performing continuous concentration in which the reaction solution is added while continuously discharging a portion of the reaction solution in the reactor out of the reactor using the filtration device when the reactor is full, wherein a concentration of a solid content in the reactor is increased at a constant rate.