METHOD FOR REGENERATING LITHIUM PRECURSOR AND SYSTEM FOR REGENERATING LITHIUM PRECURSOR

• Main Authors: KIM HONG-SIK, KOO MIN-SU
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2021
• Subjects: CHEMISTRY; COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM; INORGANIC CHEMISTRY; METALLURGY

In a method for recovering an active metal of a lithium secondary battery, an electrode active material mixture obtained from a lithium secondary battery is prepared. A preliminary precursor mixture is formed by reacting the electrode active material mixture in a dry rotary thermal reactor. A lithium precursor is selectively recovered from the preliminary precursor mixture. The recovery rate and the selectivity of the lithium precursor can be improved by using the dry rotary thermal reactor. 在回收锂二次电池的活性金属的方法中，制备从锂二次电池获得的电极活性物质混合物。将电极活性物质混合物在干式旋转加热反应器中还原，以形成初始前体混合物。从初始前体混合物中选择性地回收锂前体。使用干式旋转加热反应器可以提高回收率和选择性。