Abstract
Metal organic frameworks (MOFs) have received great interest for Li-ion batteries (LIBs) owing to their variable structure and morphology. Herein, a microspheric manganese and cobalt trimesic dual-metal organic framework (MnCo-T) with diameters between 1 and 2 μm has been synthesized. The microspheric MnCo-T retains a high capacity of 819 mAh g−1 at 200 mA g−1 after 200cycles and exhibits good rate performance (148 mAh g−1 at 4000 mA g−1). Notably, it can maintain a considerable lithium storage capacity (337 mAh g−1 after 600 galvanostatic charging/discharging cycles at 1000 mA g−1), indicating that the design of dual-metal organic frameworks is an effective strategy for enhancing Li storage performance.
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