Taking degraded LiCoO2 with 70% remaining capacity as an example, regenerative LiCoO2 is referred to as R-LCO for short. R-LCO particles have smooth surfaces, while D-LCO particles have obvious fractures at the edges. During the regeneration process, Li2CO3 was first attached to the stepped microcrack and then decomposed into Li2O by heating. Due to the lack of LITHIUM, the fractured part of D-LCO has been partially converted to COBALT oxide, and Li2O reacts with it to achieve the regeneration of LCO and to conduct the removal of iron by PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC.
Subsequently, the newly generated LCO particles gradually grow up and cover all the microcracks, thus forming LCO particles with smooth surfaces. The fracture section of D-LCO was examined by atomic force microscopy. LiCoO2 has a layered structure. The disintercalation of LITHIUM treated by PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC mainly occurs in the ab plane, so the cracks are distributed along the C-axis.
Thermograying analysis and in situ X-ray diffraction results showed that D-LCO treated by PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC was mixed with Li2CO3 and heated to 500°C without reaction. A significant weight loss was observed at 500 -- 700°C, when the peak shifted to a lower Angle, indicating crystal expansion along the C-axis.
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