Solution combustion synthesis of a nanometer-scale Co3O4 anode material for Li-ion batteries

A novel solution combustion synthesis of nanoscale spinel-structured Co3O4 powder was proposed in this work. The obtained material was composed of loosely arranged nanoparticles whose average diameter was about 36 nm. The as-prepared cobalt oxide powder was also tested as the anode material for Li-ion batteries and revealed specific capacities of 1060 and 533 mAh.g(-1) after 100 cycles at charge-discharge current densities of 100 and 500 mA.g(-1), respectively. Moreover, electrochemical measurements indicate that even though the synthesized nanomaterial possesses a low active surface area, it exhibits a relatively high specific capacity measured at 100 mA.g(-1) after 100 cycles and a quite good rate capability at current densities between 50 and 5000 mA.g(-1).

Automated summary

The novel solution combustion synthesis of nanoscale spinel-structured Co3O4 powder was proposed in this study. The obtained material exhibited loosely arranged nanoparticles with an average diameter of about 36 nm. It was further tested as an anode material for Li-ion batteries, showing specific capacities of 1060 and 533 mAh.g(-1) after 100 cycles at charge-discharge current densities of 100 and 500 mA.g(-1), respectively. Electrochemical measurements revealed a relatively high specific capacity and good rate capability of the synthesized nanomaterial.