Synthesis of hierarchical Mn 3 O 4 microsphere composed of ultrathin nanosheets and its excellent long-term cycling performance for lithium-ion batteries

In the present work, the hierarchical Mn 3 O 4 microsphere assembled by two-dimensional ultrathin nanosheets was initially synthesized successfully through ethanol thermal reduction method. When used as the anode materials for lithium ion batteries, the hierarchical Mn 3 O 4 microsphere exhibited large reversible capacity (640 mAh g −1 at 100 mA g −1 for 100 cycles), high rate capability (391 mAh g −1 at 2 A g −1 ) and outstanding long-time cycling stability (324 mAh g −1 at 2 A g −1 after 1300 cycles). The excellent performances might be related with their hierarchical microsphere structure and two-dimensional nanostructure.