A closed-loop recovery strategy for PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC for lithium ion batteries was developed. By disassembling the battery, the lithium in the lithium fossil ink is extracted in water, and then the CO2 is absorbed and converted into Li2CO3, which is used to directly regenerate LiCoO2 without adding additional lithium salt, while the degraded graphite is regenerated by delithium activation. The capacity of LiCoO2 after regeneration of different degrees of failure can reach 130 mAh/g, and the capacity of degraded graphite after regeneration can reach 370 mAh/g, similar to commercial materials.
By directly disassembly the battery, extract the LITHIUM in the negative electrode (lithium fossil ink), for the direct regeneration of the positive electrode MATERIAL (LiCoO2) by PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC iron removal; The experimental characterization and theoretical calculation show that the defects at the edge of the intermediate cathode material and the lithium vacancy inside the cathode material are the key factors for Li+ to enter the interlayer. The lithium in the graphite reacts directly with water and absorbs CO2 to convert to Li2CO3, eliminating the need for additional precipitators, ensuring product purity and avoiding separation and purification steps.
PTMS process optimization for LITHIUM COBALT ACID MATERIAL MAGNETIC. The optimization process includes optimizing the crystal size and morphology, reducing the amount of residual lithium on the surface, and reducing the content of fine powder in the material, so as to have a beneficial effect on the electrochemical performance of the ternary material.
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