Lithium manganese phosphate nanoparticles and methods for their preparation, carbon-coated lithium manganese phosphate nanoparticles, carbon-coated lithium manganese phosphate nanoparticle assemblies, lithium ion batteries

摘要

The present invention expresses a high capacity when lithium manganese phosphate is used as an active material of a lithium ion secondary battery. The present invention is characterized in that the ratio I ₂₀ / I ₂₉ of the peak intensity at 20 ° and the peak intensity at 29 ° obtained by X-ray diffraction is 0.88 or more and 1.05 or less, and the crystallite size determined from X- And the lithium manganese phosphate nanoparticles are lithium manganese phosphate nanoparticles.