Formation of Mn–Cr mixed oxide nanosheets with enhanced lithium storage properties

Novel carbon-free Mn(2)O(3)/MnCr(2)O(4) hybrid nanosheets are synthesized through thermal decomposition of the facilely co-precipitated Mn–Cr binary hydroxide and a carbonate hybrid precursor. As an anode for lithium-ion batteries, the Mn(2)O(3)/MnCr(2)O(4) electrode delivers a wonderful electrochemical performance, i.e., an enhanced stability of 913 mA h g(−1) at a current density of 1 A g(−1) after 300 cycles, and an excellent rate performance. The excellent electrochemical performance of the Mn(2)O(3)/MnCr(2)O(4) electrode can be ascribed to the interconnected nanosheets and porous structure, as well as the possible synergistic effects between Mn and Cr mixed oxides.