Effect of the stirring during the hydrothermal synthesis of C-LiFePO4
Résumé
We report that the rotation speed of the stirring in the hydrothermal reactor process is an important parameter that affects the structural properties and the electrochemical performance of LiFePO4. The best results are obtained for a rotation speed of 280 revolutions per minute. It is argued that this improved performance is related to the optimized morphology of the particles, and a smaller agglomeration of the particles. This material meets a worldwide success as a positive electrode for commercial Li-ion batteries.