Electrophoretic Deposition of MnO x @Carbon Nanotubes Film with Nest‐Like Structure as High‐Performance Anode for Lithium‐Ion Batteries

A binder‐free nest‐like structured MnO x @carbon nanotubes anode for lithium‐ion batteries (LIBs) was prepared through a facile electrophoretic deposition (EPD) method. Through the EPD process, both MnO 2 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 MnO 2 nanowires transformed into Mn 3 O 4 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 MnO x @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.