Single-Crystal Growth of LiNi1/3Co1/3Mn1/3O2 via the Flux Method and Its Electrochemical Properties

This work investigates the relationship between the particle morphology and electrochemical properties of LiNi1/3Co1/3Mn1/3O2 (NCM), a promising positive electrode material for high-power batteries. Consequently, four NCM particles with different morphologies (small octahedral, large octahedral, small plate-like, and large plate-like) were synthesized by the flux method. The electrochemical measurements revealed that the NCM particles with smaller particle sizes exhibited larger reversible capacities and better rate capabilities than the larger ones. On the other hand, the particle shape did not significantly affect the electrochemical properties. It was thus concluded that the electrochemical properties are more significantly affected by the particle size rather than its shape. The obtained correlation can thus help in establishing guidelines for the control of the particle morphology while designing high-power electrode materials.