Hydrothermal synthesis of Cu3V2O7(OH)2·2H2O hierarchical microspheres and their electrochemical properties

Abstract Uniform Cu 3 (OH) 2 V 2 O 7 ·2H 2 O microspheres assembled by nanorods have been fabricated through a simple hydrothermal method for the first time employing copper hydroxide carbonate (Cu 2 (OH) 2 CO 3 ) as copper source without the assistance of any template or surfactant. The formation mechanism was proposed based on the evolution of this morphology as a function of hydrothermal time. The Electrochemical measurements revealed that the Cu 3 (OH) 2 V 2 O 7 ·2H 2 O microspheres displayed a high discharge capacity, which indicates that the Cu 3 (OH) 2 V 2 O 7 ·2H 2 O microspheres are promising cathode candidates for primary lithium batteries used in long term implantable cardioverter defibrillators (ICD).