METHOD OF RECOVERING LITHIUM FROM BITTERN BY USING ELECTROCHEMISTY PROCESS

摘要

The present invention relates to a method of recovering lithium from a bittern by using an electrochemistry process, which includes: preparing a bittern (S10); preparing a lithium manganese oxide by introducing an absorbent into the bittern (S20); introducing and stirring the lithium manganese oxide, a conductive material, a binder, and a solvent in a stirrer and preparing slurry (S30); coating the slurry on an aluminum foil or a copper foil and drying the coated slurry (S40); putting the aluminum foil or the copper foil coated with the slurry into an electrolyzer including an electrode plate and lithium metal and checking reaction potential through a cyclic voltammetry scheme (S50); maintaining the electrolyzer at the checked reaction potential and precipitating lithium from the surface of the electrode plate (S60); and separating the precipitated lithium from the surface of the electrode plate (S70). [Reference numerals] (S10) Prepare a bittern; (S20) Prepare a lithium manganese oxide by introducing an absorbent into the bittern; (S30) Prepare slurry by introducing and stirring the lithium manganese oxide, a conductive material, a binder, and a solvent in a stirrer; (S40) Coat the slurry on an aluminum foil or a copper foil and dry the coated slurry; (S50) Put the aluminum foil or the copper foil coated with the slurry into an electrolyzer and check reaction potential through a cyclic voltammetry scheme; (S60) Maintain the electrolyzer at the checked reaction potential and precipitate lithium from the surface of the electrode plate; (S70) Separate the precipitated lithium from the surface of the electrode plate