Development of sulphur-doped rGO anode using feasible hydrothermal method for lithium iron phosphate battery

Jamaluddin, Siti Nur Ain Salwanie (2025) Development of sulphur-doped rGO anode using feasible hydrothermal method for lithium iron phosphate battery. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The development of sulfur-doped reduced graphene oxide (S-rGO) using a feasible hydrothermal method for lithium iron phosphate battery also known as LFP battery is the main aim in this project. This research aims to develop a high-performance anode for LFP batteries via a facile hydrothermal process. Sulfur doping of reduced graphene oxide is one of the promising strategy to improve the lithium storage capacity, rate performance of the graphene anodes and to enhance the electrical conductivity of the battery. Sulfur-doped reduced graphene oxide leverages graphene’s high conductivity and surface area, while sulfur doping creates defects and active sites to assist more lithium ions, increases interlayer spacing for improved ion diffusion, and facilitates faster kinetics reaction at the electrode electrolyte interface. By using conductive additives and binders, the sulfur-doped reduced graphene oxide (S-rGO) will be composited to fabricate the anode electrode for incorporation into LFP coin cells under a glove box environment. Furthermore, to evaluate the electrochemical performance of the sulfur-doped reduced graphene oxide (S-rGO) anode in LFP coin cells, cyclic voltammetry and galvanostatic charge-discharge testing will be conducted thoroughly to estimate its potential as a high-capacity, cost-effective and durable anode material for next generation of the LFP batteries. Additionally, chassis car application will be used to observe the performance and stability of the coin cell batteries by analyzing voltage, current, and power delivery over time using real-time data.

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