High rate cyclability of nickle-doped LiNi0.1Mn1.9O4 cathode materials prepared by a facile molten-salt combustion method for lithium-ion batteries
- 104 Downloads
Here we employed a facile low temperature molten-salt combustion method combined with two-stage calcination process to synthesize a series of Ni-doped spinel LiNi0.1Mn1.9O4 cathode materials. All the LiNi0.1Mn1.9O4 materials present well-defined cubic spinel structure with a representative Fd3m space group. With the elevated calcination temperature, the particle size and crystallinity increase simultaneously. Benefiting from the optimization of calcination temperature, the LiNi0.1Mn1.9O4 prepared at 600 °C reveals a favorable crystal structure and morphology consisted of homogeneous nanoparticles with a size of 90–110 nm. Consequently, the optimized LiNi0.1Mn1.9O4 cathode exhibits high rate capability and ultralong cycling stability with a discharge specific capacity of 97.1 mAh g−1 and a capacity retention of 63.5% after 1000 cycles at a high current rate of 10 and 25 °C. Even at a high-temperature of 55 °C, a high initial discharge capacity of 106.1 mAh g−1 and a good capacity retention of 79.0% is also obtained after 100 cycles at 5 C. Such an excellent electrochemical performance together with the facile synthesis approach may endow the as-prepared LiNi0.1Mn1.9O4 to be a promising practical application for high-power lithium-ion batteries.
This work was financially supported by the National Natural Science Foundation of China (51462036, U1602273).
- 18.D.Y. Shin, Y.G. Lee, H.J. Ahn, One-pot synthesis of aluminum oxide coating and aluminum doping on lithium manganese oxide nanoparticles for high performance energy storage system. J. Alloy. Compd. 27, 165–1170 (2017)Google Scholar
- 28.M.A. Kebede, N. Kunjuzwa, C.J. Jafta, M.K. Mathe, K.I. Ozoemena, Solution-combustion synthesized nickel-substituted spinel cathode materials (LiNixMn2–xO4; 0 ≦ x ≦ 0.2)for lithium ion battery: enhancing energy storage capacity retention and lithium ion transport. Electrochim. Acta 128, 172–177 (2014)CrossRefGoogle Scholar
- 40.J.J. Huang, Q.L. Li, H.L. Bai, W.Q. Xu, Y.H. He, C.W. Su, J.H. Peng, J.M. Guo, Preparation and electrochemical properties of LiCuxMn2–xO4 (x ≤ 0.10) cathode material by a low-temperature molten-salt combustion method. Int. J. Electrochem. Sci. 10, 4596–4603 (2015)Google Scholar
- 46.H.R. Naderi, M.R. Ganjali, A.S. Dezfuli, High-performance supercapacitor based on reduced graphene oxide decorated with europium oxide nanoparticles. J. Mater. Sci. 29, 3035–3044 (2018)Google Scholar
- 47.S.E.M. pourhosseini, O. Norouzi, P. Salimi, H.R. Naderi, Synthesis of a novel interconnected 3D pore network algal biochar constituting iron nano particles derived from a harmful marine biomass as high performance asymmetric supercapacitor electrodes. ACS Sustain. Chem. Eng. 6, 4746–4758 (2018)CrossRefGoogle Scholar