Room-temperature synthesis of ultrathin Mn3O4 nanosheets as anode materials for lithium-ion batteries

•Through a simple and low-cost route to prepare ultrathin Mn3O4 nanosheets.•The ultrathin Mn3O4 nanosheets exhibit a higher reversible capacity and stronger cycling stability.•This work is favorable to explore advanced ultrathin nanosheets structure as anode materials for LIBs.

We use deionized water and ethanolamine as solvent and manganese chloride as Mn sources under stirring to successfully prepare the ultrathin two-dimensional (2D) graphene-like nanosheet materials. The as-obtained ultrathin Mn3O4 nanosheets own high surface area (192.46 m2 g−1) through a simple and low-cost route at room-temperature. Importantly, the ultrathin Mn3O4 nanosheets exhibit a higher reversible capacity and stronger cycling stability (~520 mAh g−1 at 200 mA g−1 after 300 cycles) as anode materials for LIBs.

Graphical abstractThe ultrathin Mn3O4 nanosheets exhibit a higher reversible capacity and stronger cycling stability as anode materials for LIBs.Figure optionsDownload full-size imageDownload as PowerPoint slide