Highly reversible Li-ion full batteries using a Mg-doped Li-rich Li1.2Ni0.28Mn0.468Mg0.052O2 cathode and carbon-decorated Mn3O4 anode with hierarchical microsphere structures

In this paper, a microsphere (MS) structured Mg-doped Li-rich Li1.2Ni0.28Mn0.468Mg0.052O2 (0.5Li(2)MnO(3)center dot 0.5LiNi(0.7)Mn(0.17)Mg(0.13)O(2), LLNMO@Mg) cathode material and Mn3O4 coated with carbon (Mn3O4@C) anode material were prepared for application to lithium-ion batteries (LIBs). The as-synthesized LLNMO@Mg MSs were used in a LIB cathode, and they exhibited a high discharge capacity output (242.5 mA h g(-1)), outstanding cycling retention, and good rate capability. Additionally, the Mn3O4@C MSs exhibited a high discharge capacity output (1228.9 mA h g(-1)), better capacity retention, and high rate properties, as compared to bare Mn3O4 MSs. Consequently, when the full LIB consisted of an LLNMO@Mg MS cathode and Mn3O4@C MS anode, it exhibited an initial discharge capacity of about 179.6 mA h g(-1) from 4.2 to 0.1 V. The improved Li+ storage performances suggest that this full Li-ion cell with LLNMO@Mg and Mn3O4@C could be a next-generation LIB system.