High-performance of LaCoO3/Co3O4 nanocrystal as anode for lithium-ion batteries
2021
Zhang, Na | Liu, Enqi | Chen, Hongwei | Hou, Jinhui | Li, Chao | Wan, Hongri
In order to solve the problem of low capacity and volume expansion of LaCoO₃, LaCoO₃/Co₃O₄ 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 LaCoO₃/Co₃O₄-800) exhibit excellent lithium storage performance as lithium ion batteries (LIBs) anodes. LaCoO₃/Co₃O₄-800 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.
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