Cobalt Oxide Modified Porous Carbon Anode Enhancing Electrochemical Performance for Lithium-Ion Batteries

A cobalt oxide modified porous carbon was synthesized via a facile solvothermal method followed by a simple thermal treatment process. Field emission scanning electron microscopy and transmission electron microscopy techniques have confirmed that Co₃O₄ particles with sizes of about 50 nm are uniformly dispersed onto porous carbon. The electrochemical properties of the as-prepared nanocomposites were tested as anode materials for lithium-ion batteries. The obtained results exhibited that the electrochemical performances of the composite could be effectively improved in terms of  reversible capacity, cycling performance, and rate capability due to the synergistic effects coming from Co₃O₄ nanoparticles and porous carbon.