High capacity and excellent cyclic performances of Mn 2 O 3 /Mn 3 O 4 /C materials as li-ion battery anode

Due to the large volume change and poor conductivity, manganese oxide with high theoretical specific capacity is difficult to be widely used in the anode of lithium-ion battery. By the self-propagating sol–gel method, the nano-sized manganese oxide particles are embedded in the amorphous porous C in situ. Amorphous porous C and nano-manganese oxide particles can alleviate the volume effect of manganese oxide, and C can increase the conductivity and stability of Mn 2 O 3 /Mn 3 O 4 /C composites. Therefore, Mn 2 O 3 /Mn 3 O 4 /C composites have excellent cyclic properties: 902.9 mAh/g at 1.0 A/g after 1300 cycles; 290.5 mAh/g at 5.0 A/g after 10,000 cycles; 183.3 mAh/g at 10 A/g after 10,000 cycles.