This technology relates to vanadium oxide-carbon composite negative electrode active material, its manufacturing method, and lithium-ion batteries containing the same. In particular, it is a technology designed to increase the performance, structural stability, and application efficiency of battery materials and electrode designs based on a simple solvent thermal composition method.
Conventionally, very high V2O3 materials have been used as cathode active materials in lithium-ion batteries, which can suffer from low practical capacity, conductivity, and structural stability issues, leading to poor performance, process complexity, lack of stability, or limited application scope. Accordingly, this technology proposes a technological concept that implements the steps of dissolving ammonium metavanadate (NH4VO3) in a mixed solvent containing isopropanol and glycerol in a volume ratio of 43:7 by applying the step of dissolving m-ammonium vanadate in a solvent and the step of preparing a precursor as the core means.
Accordingly, the circulation stability effect of the V2O3/C composite active material can be expected, and stability, reproducibility, and scalability in actual use environments can be improved through a simple solvent heat composition method. In addition, it can be used as a high-performance material, device, device, or process technology in related industries, and is advantageous in terms of subsequent productization and process expansion, and is also suitable for demonstration deployment.
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