The coordination polymers (CPs) possessing beneficial molecular structure and functionality are essential to improve the applications in sodium-ion batteries (SIBs) and lithium-ion batteries (LIBs). This work reports cobalt-based coordination polymers with varied morphologies controlled by microwave irradiation. The metal ion and organic ligands are both active for reversible storage of Na or Li ions. When evaluated as negative electrode for both SIBs and LIBs for the first time, the unique porous flower-like Co-CP product delivers large reversible capacities of 554/1,064 mAh/g for SIBs/LIBs at 100 mA/g and long cycle life at small and large currents in 300–500 cycles. Based on the ex situ XPS spectra, in situ FTIR spectra and electrochemical probing, the energy storage mechanism of Co-CP during sodiation and desodiation is determined to be promising 10 electrons involved redox chemistry associated with both Co ions and C=O bonds of the organic ligands.

具有有益的分子结构和功能的配位聚合物（CP）对于改善钠离子电池（SIB）和锂离子电池（LIB）的应用至关重要。这项工作报告了钴基配位聚合物，其形态由微波辐射控制。金属离子和有机配体均具有活性，可逆地存储Na或Li离子。当首次将其评估为SIB和LIB的负极时，这种独特的多孔花状Co-CP产品在100 mA / g的SIB / LIB时可提供554 / 1,064 mAh / g的大可逆容量，并在200伏/克时具有长循环寿命300–500个周期中的小电流和大电流。基于非原位XPS光谱，原位 FTIR光谱和电化学探测，在共碱化和脱碱过程中Co-CP的能量存储机制被确定为有望与有机配体的Co离子和C = O键相关的10个涉及氧化还原化学的电子。