Journal
SCRIPTA MATERIALIA
Volume 233, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2023.115511
Keywords
LiCoO2; Flash synthesis; Oxygen vacancies; Li-ion batteries
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It is costly to synthesize cathode materials through the solid reaction of raw materials at relatively high temperatures due to its high energy consumption. Here, we use LiCoO2 as a model material to demonstrate a novel method for synthesizing cathode materials within 120 s at temperatures as low as 260 degrees C under an AC electric field. The proposed synthesis method could provide a cost-effective pathway to synthesize different cathode materials.
It is costly to synthesize cathode materials through the solid reaction of raw materials at relatively high temperatures due to its high energy consumption. Here, we use LiCoO2 as a model material to demonstrate a novel method for synthesizing cathode materials within 120 s at temperatures as low as 260 degrees C under an AC electric field. The influence of the current density, current retention time, and synthesis atmosphere on the prepared LiCoO2 materials was systematically investigated. The results indicate that the acceleration of the synthesis process between Co2O3 and Li2CO3 is due to the introduction of oxygen vacancies into the reaction system under a threshold electric field. The obtained LiCoO2 exhibits the same electrochemical performance as that of LiCoO2 synthesized via the conventional thermal reaction method. The proposed synthesis method could provide a costeffective pathway to synthesize different cathode materials.
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