Electrochemical Insights and Data-Driven Evaluation of Sodium-ion Battery Technologies

Abstract

Electrochemical Insights and Data-Driven Evaluation of Sodium Battery Technologies The study here presents a comprehensive analysis of sodium-ion battery technologies by exploring their potential as a sustainable and cost-effective alternative to lithium-ion technology. The study examines multiple commercially available sodium-ion batteries by examining their capacity retention analysis, voltage retention analysis, and voltage to capacity characteristics analysis. Furthermore, the thesis explores performance of layered oxides, polyanionic compounds, and Prussian blue analogues as cathode materials assessing their chemistry, capacity, operational voltage and cycling stability. The anode materials evaluated in this study include carbon-based materials, alloy-based materials, phosphorous-based materials and titanium-based oxides, with a focus on their ability to accommodate sodium-ions and maintain structural integrity during cycling. In addition, literary research on the electrolyte technology is also done focusing on the ionic conductivity and safety. The research combines the laboratory based electrochemical testing with advanced data analysis to interpret the results. This validates the performance characteristics of the sodium-ion technology under the controlled test environment. The results validate the stability and cycling capabilities of sodium-ion batteries and its potential as a suitable alternative for lithium-ion counterpart especially in largescale storage solutions.

Date of Award	2025
Original language	English
Supervisor	Christina Toigo (Supervisor)