Method for preparation of carbon-coated lithium cobalt phosphate nanofibres used as high voltage cathodes

Abstract

This invention belongs to the field of nanomaterials, materials science and energy storage devices, and more specifically, it relates to the development of cathode materials for lithium-ion batteries. The objective of the invention is to improve the efficiency of lithium-ion batteries by ensuring uniform distribution of lithium cobalt phosphate nanoparticles in carbon nanofibers obtained from a single solution using electrospinning and thermal treatment methods, making them suitable for use as cathode materials. The technical result of the invention: it is possible to ensure uniform distribution of lithium cobalt phosphate nanoparticles in carbon nanofibers obtained by electrospinning and thermal treatment, control the morphology and particle size of the cathode material, distribution uniformity, and increase the formation efficiency of the lithium cobalt phosphate cathode by increasing its electrochemical performance. The technical result is achieved by coating lithium cobalt phosphate with carbon by electrospinning and heat treatment, which simplifies and makes the synthesis process more efficient. By simultaneously forming lithium cobalt phosphate with polymer carbonization, the carbon layer is immediately and uniformly coated on the surface of the nanofiber, improving its conductive properties. The material obtained by this method can be used as a high-voltage and long-lasting cathode material, increasing the performance of lithium-ion batteries.