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. 16, 2026
Filed:
Feb. 18, 2022
Lg Energy Solution, Ltd., Seoul, KR;
Tae Gu Yoo, Daejeon, KR;
Wang Mo Jung, Daejeon, KR;
Chi Ho Jo, Daejeon, KR;
Ji Hye Kim, Daejeon, KR;
Hae Jung Jung, Daejeon, KR;
Jong Wook Heo, Daejeon, KR;
LG Energy Solution, Ltd., Seoul, KR;
Abstract
Provided are a sacrificial positive electrode material with a reduced gas generation amount and a method of preparing the same. The method includes calcinating a raw material mixture of lithium oxide (LiO) and cobalt oxide (CoO) to prepare a lithium cobalt metal oxide, wherein the lithium oxide (LiO) has an average particle size (D50) of 50 μm or less, and the resulting sacrificial positive electrode material has an electrical conductivity of 1×10S/cm or more. The method of preparing a sacrificial positive electrode material can reduce the generation of gas, particularly, oxygen (O) gas, in an electrode assembly during charging of a battery by adjusting the electrical conductivity of the sacrificial positive electrode material within a specific range using lithium oxide that satisfies a specific size, and thus the stability and lifespan of the battery including the same can be effectively enhanced.