Oxide is widely used in modifying cathode and anode materials for lithium-ion batteries. In this work, a facile method of radio magnetron sputtering is introduced to deposit a thin film on Li 4 Ti 5 O 12 composite electrodes. The pristine and modified Li 4 Ti 5 O 12 electrodes are characterized at an extended voltage range of 3–0.01 V. The reversible capacity reaches a high level of 286 mAh g –1 , which is a little less than its theoretical capacity (293 mAh g –1 ). Electrodes modified by ZnO thin films with various thickness show elevated rate capability and improved cycle performance.
materials science, power and energy systems
Natural Sciences in General