Manganese pyridinedicarboxylates: New anode materials for lithium-ion batteries with good cycling performance

• Manganese 2,3-pyridinedicarboxylate and 2,5-pyridinedicarboxylate.
• Firstly tested as anode materials.
• High capacity and good cycle stability.

It is significant to discover new environmental friendly, sustainable and renewable electrode materials for lithium-ion batteries. Manganese dicarboxylate [Mn2(pdc)2(H2O)3]n⋅2nH2O (pdc = pyridine-2,3-dicarboxylate) is firstly found to be a high-energy anode material for lithium-ion batteries. It shows a high discharge capacity of 573.7 mA h g−1 for the second cycle between a 0.05 and 3.0 V voltage limit at a discharge current density of 500 mA g−1. The reversible capacity of 457.2 mA h g−1 is remained after 100 cycles with a capacity retention being 79.6%. In addition, it is found that Mn 2,5-pyridinedicarboxyle was also stable anode materials with high capacity.

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