The improved performance of lithium-ion batteries via the novel electron transport catalytic role of polyaniline (PANI) in PANI/Co3O4-CuO raspberry as new anode material

This paper presents a new and simple method for high-rate performance of PANI/Co3O4-CuO (PANI/MO-M'O') raspberry via the sol-gel method and compares structural and electrochemical characteristics of both Co3O4-CuO (MO-M'O') nanomatrix and PANI/MO-M'O' raspberry nanoarray. Using the PANI/MO-M'O' raspberry-inspired anode in lithium-ion batteries (LIBs) resulted in the improved electrochemical performances of cycling stability, discharge capacity, and rate capability compared with the MO-M'O' nanomatrix. In addition, regarding anode material for LIBs, PANI/MO-M'O' anode presented the specific capacity of 455.34 mAh g(-1) at the current density of 1.0 Ag-1 after 60 cycles. Further, the PANI/MO-M'O' nanoarray produced a satisfied discharge capacity of 311.22 mAh g(-1) at a density of 3.0 A g(-1), as well as an appropriate cycle stability and rate capability. Finally, the improved electrochemical property of this unique organic-inorganic heterostructure (PANI/MO-M'O' raspberry design) can be related to the avoid aggregation, an effective electric contact, improved electrochemical stability, and a lower charge-transfer resistance during cycling performance. These advantages are mainly because of the novel catalytic role of the PANI electron transfer in the PANI/MO-M'O' raspberry as a new anode material. [GRAPHICS] .