Abstract Hierarchical LiNi0.5Mn1.5O4 (LNMO) microspheres were prepared via a hydrothermal method followed by program controlled temperature calcination. The as-obtained LNMO microspheres (diameter: ∼5 μm) which were assembled with submicron nanorices particles… Click to show full abstract
Abstract Hierarchical LiNi0.5Mn1.5O4 (LNMO) microspheres were prepared via a hydrothermal method followed by program controlled temperature calcination. The as-obtained LNMO microspheres (diameter: ∼5 μm) which were assembled with submicron nanorices particles (length: ∼500 nm) (R-LNMO) could combine the superiority of the both nanosized and microsized structure, enhancing rates performance. The result indicated that R-LNMO exhibited discharge capacities of 141 mAh g−1 after 200 cycles at 2 C, together with the capacity retention of 95.2%. Besides, R-LNMO could deliver capacities of 147, 141, 137, 128, 120, 114 mAh g−1 at rates of 0.1, 2, 5, 10, 15 and 20 C, showing prospectively superior rates performance.
Journal Title: Materials Letters
Year Published: 2019
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