Abstract: A relatively simple galvanostatic method was used for the evaluation on the average chemical diffusion coefficient of lithium-ion in spinel LiVOPO₄ prepared by rheological phase method.The diffusion coefficient of lithium-ion was estimated to be 4.78×10^-11 cm²·s^-1 and 3.27×10^-11 cm²/s for charge and discharge,respectively.

Key words: diffusion coefficient, LiVOPO₄, galvanostatic method