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:
Dec. 30, 2025
Filed:
Sep. 11, 2019
Lg Chem, Ltd., Seoul, KR;
Sang Soon Choi, Daejeon, KR;
Hwa Seok Chae, Daejeon, KR;
Jae Geun Kim, Daejeon, KR;
Seong Hoon Kang, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
A method of preparing a positive electrode material is provided. The method includes mixing a first positive electrode active material precursor having an average particle diameter (D) of 10 μm to 30 μm with a lithium-containing raw material and pre-sintering the mixture to obtain a first pre-sintered product, mixing a second positive electrode active material precursor having an average particle diameter (D) different from that of the first positive electrode active material precursor with a lithium-containing raw material and pre-sintering the mixture to obtain a second pre-sintered product, disintegrating each of the first pre-sintered product and the second pre-sintered product, and mixing the disintegrated first pre-sintered product and the disintegrated second pre-sintered product and main-sintering the mixture to obtain a positive electrode material.