CuS/GO composite for high performance Lithium ion storage

Abstract

Li ion batteries (LIBs) have emerged as the promising energy storage device in the electronic industry. The performance of LIBs is mostly influenced by the type of electrode material. Thus, proper selection and development of the electrode material is of paramount interest. In this work, copper sulfide/graphene oxide (CuS/GO) composite electrode material is fabricated using a simple, cost-efficient, and rapid microwave irradiation technique. A unique architecture is obtained in which the CuS microspheres are encapsulated by the GO nanosheets. Combined with a binder-free buckypaper approach, the fabricated CuS/GO composite anode delivers excellent electrochemical performance in terms of high specific capacity, enhanced rate capability and high cyclic stability than its pristine form (CuS). The enhanced performance is attributed to the synergistic effect of CuS and GO. The obtained results certainly reflect the promising future of the CuS/GO composite anode in LIB applications.

Keywords

• Anode
• CuS
• Graphene oxide (GO)
• Li ion batteries
• Specific capacity