HRTEM patterns of undoped and Zr4% doped samples, (0a) x = 0 before cycle, (0a1) x = 0 after 101 cycles, (4a) x = 4% before cycle, (4a1) x = 4% after 101 cycles.

Copper manganese oxide Cu 1.5 Mn 1.5 O 4 , a novel anode material for lithium-ion batteries, was synthesized via a spray drying method. SEM images demonstrated a strong dependence of the morphologies of secondary and primary particles on the synthesis parameters. The surface electronic states and chemical compositions of manganese and copper in the sample were confirmed by XPS. The electrochemical results demonstrated that the sample synthesized at an annealing temperature of 700 C showed great cycling performance, and retained a specific capacity of 464 mA h g À1 at a current of 100 mA g À1 after 60 cycles.

No abstract

Cu1.5Mn1.5O4 is prepared by spray drying of an aqueous solution of Cu(OAc)2, Mn(OAc)2, and citric acid with an outlet temperature of 185 °C followed by pre‐sintering in air (300 °C, 3 h).