One-dimensional lithium-rich Li1.17Ni0.35Mn0.48O2 cathode and carbon-coated MnO anode materials for highly reversible Li-ion configurations

Abstract

Many efforts have been devoted to develop both cathode and anode materials with high energy and power densities. In this paper, one-dimensional (1D) Li-rich Li1.17Ni0.35Mn0.48O2 (0.4Li2MnO3∙0.6LiNi0.7Mn0.3O2, LLMNO) cathode and carbon-coated MnO (C@MnO) anode active materials synthesized with the same 1D MnC2O4 precursor nanowires (NWs) were fabricated for use in full lithium-ion batteries (LIBs). As-prepared 1D LLMNO was used as a LIB cathode, which delivered a high capacity (215.8 mAh g−1), improved cyclic lifetime, and notable rate capability. Furthermore, the 1D C@MnO anode exhibited an enhanced capacity (1001.4 mAh g−1), high cycling stability, and excellent rate capability, in comparison with MnO NWs without carbon decorations. While the full LIB consisted of 1D structural LLMNO cathode and C@MnO anode, it showed a high capacity above 178.5 mAh g−1 from 0.1 to 4.2 V at the first cycle. The enhanced Li+ storage properties suggest that these full LIB configurations with 1D LLMNO and C@MnO NWs could be a prospective candidate for practical LIB applications.