High-performance of LaCoO3/Co3O4 nanocrystal as anode for lithium-ion batteries

In order to solve the problem of low capacity and volume expansion of LaCoO 3 , LaCoO 3 /Co 3 O 4 perovskite composites were effectively fabricated by a simple hydrothermal method coupled with calcination process. When the calcination temperature is 800 °C, due to the nanoscale sizes, mesoporous structure and heterogeneous components, the samples (named LaCoO 3 /Co 3 O 4 -800) exhibit excellent lithium storage performance as lithium ion batteries (LIBs) anodes. LaCoO 3 /Co 3 O 4 -800 anode exhibits a high reversible capacity (549.7 mAh/g after 100 cycles at 100 mA/g) and superior cycling stability (396.7 mAh/g after 1000 cycles at 1 A/g). This research provides potential candidates for perovskite lanthanide nanomaterials for LIBs anodes.