Abstract
Li-ion batteries (LIB) have a combination of high energy and power density, making it the technology of choice for portable electronics, power tools, and hybrid/full electric vehicles. Phosphorous based material is very promising for high performance Lithium-ion battery application due to its high theoretical capacity (2569 mA h g-1) but suffers from poor conductivity (10-12 S m-1). It was reported that poor electrochemical stability with significant capacity fading was observed immediately after the first cycle because of the large volume change of almost 300 percent. In this study, we synthesized a novel red phosphorous/sulfurized polyacrylonitrile (SPAN) composite via electrostatic spray deposition (ESD) for LIB. The electrochemical performance of the hybridized composite were evaluated by electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and galvanostatic charge-discharge tests. Electrochemical characterizations revealed that the Red Phosphorous-SPAN composite delivers a high specific capacity of ≈1515 mAh g-1 at a current density of 200 mA g-1 with good cycling performance (92% capacity retention after 100 cycles) which is prominent in the anode materials for LIBs. This presentation will give the details of the methods used to produce the novel anode materials and their electrochemical characterization as LIB anodes.