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:
Apr. 21, 2026
Filed:
Nov. 16, 2021
Doosan Enerbility Co., Ltd, Changwon, KR;
Jang Yong You, Suwon, KR;
Wee Kwan Kang, Yongin, KR;
Ho Yong Jo, Yongin, KR;
Chae Soo Lee, Yongin, KR;
DOOSAN ENERBILITY CO., LTD, Changwon, KR;
Abstract
A method of heat-treating a waste cathode material to recover lithium carbonate from the waste cathode material, and a lithium carbonate recovery method using the waste cathode material heat treatment method are provided. The method of heat-treating the waste cathode material includes heating an interior of a heat treatment furnace by burning a hydrocarbon fluid in the heat treatment furnace and producing lithium carbonate (LiCO) and residual metal oxide by reacting a waste cathode material in the heat treatment furnace with COgenerated during burning of the hydrocarbon fluid.