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作者： Jiaqi Li, Yang Yang, Jing Wang, Dr. Peng Zhang, Prof. Jinbao Zhao
School of Energy Research, College of Energy, Xiamen University, Xiamen University, Xiamen, China
State Key Lab of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen University, Xiamen, China
摘要：A binder-free nest-like structured MnOx@carbon nanotubes anode for lithium-ion batteries (LIBs) was prepared through a facile electrophoretic deposition (EPD) method. Through the EPD process, both MnO2 nanowires and carbon nanotubes (CNTs), as starting materials, were interwoven tightly to form a uniform co-deposited film, possessing a nest-like architecture. After annealing the film under an inert atmosphere, the MnO2 nanowires transformed into Mn3O4 and MnO, as confirmed by the X-ray diffraction patterns. The nest-like electrode formed a porous and integrated conductive framework and provided the buffer space for the volume change of manganese oxides during cycling processes. As a result, this MnOx@CNTs electrode exhibited excellent cycling performance with a reversible capacity of 1152.1?mAh g−1 at 0.2?A g−1 and a superior cycling stability with 88.0 % capacity retention at 1?A g−1 after 200 cycles.
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