Poster or Presentation Title
Advisor(s)
Dr. M. V. Reddy
Mr Phua William
Subjects
Chemistry
Abstract
Lithium ion batteries (LIBs) are commonly found in many portable electronic appliances due to their ability to be rechargeable. Currently, commercial anodes in Li-ion batteries (graphite) have a theoretical capacity of around 372 mAh/g, while FeCo2O4 that will be investigated as the anode material has a theoretical capacity of 901.985mAh/g, more than double of the current commercial anode’s capacity. Earlier work done by Sharma et al also showed that FeCo2O4 has a very promising initial capacity of 827mAh/g. As such, the engineering goal is to produce a battery that will have a higher capacity than the current commercial Li-ion batteries through increasing the capacity of the anode material. The molten salt method and the citric acid combustion method were used to synthesise the anode active material as they are of lower cost. SEM and XRD analysis showed that FeCo2O4 synthesised by the Molten Salt Method (MSM) was of a higher purity than that synthesised by the Citric Acid Combustion Method (CAC). This further supports our findings that FeCo2O4 synthesised by the MSM has a higher cyclic stability than the one synthesised by CAC. However, both samples reflected a high capacity fade and resistance to charge transfer.
Included in
Materials Chemistry Commons, Other Chemistry Commons, Other Materials Science and Engineering Commons
FeCo2O4 as an Anode Material for Lithium Ion Batteries
Lithium ion batteries (LIBs) are commonly found in many portable electronic appliances due to their ability to be rechargeable. Currently, commercial anodes in Li-ion batteries (graphite) have a theoretical capacity of around 372 mAh/g, while FeCo2O4 that will be investigated as the anode material has a theoretical capacity of 901.985mAh/g, more than double of the current commercial anode’s capacity. Earlier work done by Sharma et al also showed that FeCo2O4 has a very promising initial capacity of 827mAh/g. As such, the engineering goal is to produce a battery that will have a higher capacity than the current commercial Li-ion batteries through increasing the capacity of the anode material. The molten salt method and the citric acid combustion method were used to synthesise the anode active material as they are of lower cost. SEM and XRD analysis showed that FeCo2O4 synthesised by the Molten Salt Method (MSM) was of a higher purity than that synthesised by the Citric Acid Combustion Method (CAC). This further supports our findings that FeCo2O4 synthesised by the MSM has a higher cyclic stability than the one synthesised by CAC. However, both samples reflected a high capacity fade and resistance to charge transfer.