A novel NiCo2O4 anode morphology for lithium-ion batteries

Abstract

Spray pyrolysis typically produces spherical particles. In this work, dried plum-like NiCo₂O₄ particles are synthesized as anode materials for lithium-ion batteries via a facile one-pot spray pyrolysis process using acetate precursors. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) observations reveal that the concentration of the precursor solution strongly influences the morphology of the prepared NiCo₂O₄ particles and this results in different electrochemical performances. It is demonstrated that the special morphological features of the NiCo₂O₄ particles including the wrinkled structure and the resulting dimples on the surface exert significant effects on the electrochemical performances.