Abstract A lanthanide-based coordination polymer Tb 2 (H 2 dobdc) 3 (DMF) 4 (Tb-MOF), was prepared by the solvothermal reaction. Benefitting from the large amount and uniform distribution of oxygen atom, conjugated aromatic nucleus as active electrochemical reaction sites, Tb-MOF anode exhibits good specific capacity and excellent cycle performance. The initial discharge specific capacity reached 627.5 mAh g −1 and –87.4% capacity retention after 100 cycles at a current density of 100 mA g −1 . At the same time, Tb-MOF electrode has an extremely high structural stability, and the capacity retention is maintained at 99.1% even if it is cycled 3000 times at a current density of 0.8 Ag −1 . The research results show that this novel rare earth complex electrode has important research value and application potential compared with traditional anode materials.

中文翻译：

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一种具有高循环稳定性的镧系配位聚合物作为锂离子电池负极

摘要 通过溶剂热反应制备了镧系元素配位聚合物Tb 2 (H 2 dobdc) 3 (DMF) 4 (Tb-MOF)。得益于氧原子数量多且分布均匀，共轭芳核作为活性电化学反应位点，Tb-MOF负极表现出良好的比容量和优异的循环性能。在100 mA g -1 的电流密度下循环100 次后，初始放电比容量达到627.5 mAh g -1 和–87.4% 的容量保持率。同时，Tb-MOF电极具有极高的结构稳定性，即使在0.8 Ag -1 的电流密度下循环3000次，容量保持率仍保持在99.1%。