Reversible lithium storage in manganese and cobalt 1,2,4,5-benzenetetracarboxylate metal–organic framework with high capacity

Abstract

Metal–organic frameworks (MOFs), are explosively developed as electrode materials for lithium-ion batteries. Mn-BTC MOF possessed low cycling stability. We therefore attempted to improve the electrochemical properties by doping cobalt into the Mn-BTC. Cobalt doped MnCo-BTC MOF greatly improved the cycling stability compared with Mn-BTC. A high capacity of 901 mA h g⁻¹ could be obtained for MnCo-BTC at a rate of 100 mA g⁻¹ after 150 cycles. Even at a high rate of 500 mA g⁻¹, its capacity can still reach 445.3 mA h g⁻¹ after 100 cycles.