MOF-templated thermolysis for porous CuO/Cu2O@CeO2 anode material of lithium-ion batteries with high rate performance

• Published in: Journal of materials science 2017-06, Vol.52 (12), p.7140-7148
• Main Authors: Wang, Lijuan, Wang, Xiaojie, Meng, Zhaohui, Hou, Hongjiang, Chen, Baokuan
• Format: Article
• Language: English
• Subjects: Anodes; Cerium oxides; Characterization and Evaluation of Materials; Chemistry and Materials Science; Classical Mechanics; Copper; Copper oxides; Crystallography and Scattering Methods; Electrochemical analysis; Electrode materials; Electron transport; Lithium; Lithium-ion batteries; Materials Science; Metal-organic frameworks; Original Paper; Polymer Sciences; Pyrolysis; Rechargeable batteries; Solid Mechanics
• ISSN: 0022-2461; 1573-4803
• DOI: 10.1007/s10853-017-0949-1

Novel porous CuO/Cu 2 O@CeO 2 anode has been successfully synthesized from a Cu-based metal–organic framework (Cu-MOF) via a simple two-step pyrolysis method. The CeO 2 protective layer greatly improves the electronic conductivity, can buffer the volume change and can provide pathways for electron transport and Li + diffusion. The results demonstrate that the electrochemical performance of CuO/Cu 2 O anode can be significantly improved by the design. The CuO/Cu 2 O@CeO 2 electrode delivers a large specific capacity of 473 mAh g −1 at 0.3 A g −1 , and exhibits excellent rate capacity with 250 mAh g −1 at 2 A g −1 and good cyclic performance with a capacity of 592.3 mAh g −1 after 100 cycles at 0.2 A g −1 .