ZnMn2O4 nanoparticles synthesized by a hydrothermal method as an anode material for Li-ion batteries

ZnMn2O4 nanoparticles prepared by a hydrothermal synthesis were evaluated as anode material for Li-ion batteries. XRD measurements showed that a ZnMn2O4I41/amd tetragonal spinel structure was obtained with crystallite sizes ≤5 nm. TEM micrographs showed that particles of about 5 nm in diameter were synthesized. Li/ZnMn2O4 half cell battery cycling showed that the nanoparticles, using lithium salt of carboxymethylcellulose as binder, give a high capacity of 430 mAh g−1 when cycled 100 times at C/10.

► Hydrothermal synthesis of ZnMn2O4 as lithium-ion battery anode material. ► ZnMn2O4 particles of 5 nm in diameter were obtained. ► Use of lithium salt of carboxymethylcellulose as binder. ► High capacity of 430 mAh g−1 was obtained after 100 cycles at C/10.