Self-assembly of mesoporous CuO nanosheets–CNT 3D-network composites for lithium-ion batteries†
Abstract
A facile, flexible and large-scale technique was proposed to prepare a CuO–CNT 3D-network composite with the aid of electrostatic interactions in aqueous solution. The composite greatly improves the electrochemical performance. At a rate of 0.1 C, the cycling discharge capacity of the optimal composite is more than 2.3 times of that of unmodified mesoporous CuO