Preparation and electrochemical properties of sepiolite supported Co3O4 nanoparticles

In this paper, Co3O4/sepiolite composites have been synthesized by using electrochemically active sepiolite as templates. The Co3O4/sepiolite composite delivered an initial discharge capacity around 1947 mAhg(-1) at 1.0 Ag-1 with capacity retention up to 867 mAhg(-1) after 1000 cycles. Besides, the composite released a high specific discharge capacity around 453 and 206 mAhg(-1) at 5.0 and 15.0 Ag-1, respectively. A long-term activation process can be observed in the lithiation/delithiation reaction, which is beneficial to improve the cycling performance of Co3O4/sepiolite composites.

Automated summary

In this study, Co3O4/sepiolite composites were synthesized using electrochemically active sepiolite as templates. The composite exhibited high initial discharge capacity and stable cycling performance, as well as high specific discharge capacity at high rates.