Electrolytes in Zinc-ion Batteries

Zinc-ion batteries (ZIBs) are emerging as a promising alternative to lithium-ion batteries (LIBs) due to their inherent safety, low cost, and environmental friendliness. As the demand for efficient, sustainable, and cost-effective energy storage solutions grows, ZIBs present a viable option for large-scale applications such as grid storage and electric vehicles. One of the key components determining the performance of ZIBs is the electrolyte, which plays a crucial role in ion transport, electrochemical stability, and overall battery efficiency.

This project focuses on the development and optimization of advanced electrolytes for high-performance zinc-ion batteries. Unlike lithium, zinc is abundant, non-toxic, and operates in aqueous environments, making it safer and more affordable. However, challenges such as zinc dendrite formation, limited electrolyte stability, and slow ion mobility need to be addressed for ZIBs to compete with LIBs in commercial applications.

Primary Objectives:

1. Design and optimize both aqueous and non-aqueous electrolyte systems, incorporating novel additives, ionic liquids, and solid-state options to enhance performance. This will involve addressing key challenges such as zinc dendrite formation, side reactions, and limited electrochemical stability.
2. Investigate strategies to prevent zinc dendrite formation and improve the cycling stability of zinc anodes. By optimizing the electrolyte composition, we aim to extend the battery’s lifespan and enhance safety.
3. Investigate the interaction between electrolytes and various cathode materials to ensure compatibility and maximize energy density, charging speed, and cycle life. This will help identify the best electrolyte-cathode combinations for specific applications.
4. Utilize advanced electrochemical characterization techniques and computational modeling to understand the mechanisms governing electrolyte performance, ion transport, and electrode stability. These insights will inform the rational design of next-generation electrolytes.

The project will explore the balance between aqueous and non-aqueous systems, considering factors such as ion mobility, corrosion resistance, and electrochemical window. By enhancing zinc ion transport and overall battery efficiency, this research aims to push the boundaries of green energy technology.

The outcome will be a new generation of high-performance, scalable, and sustainable ZIBs, providing a viable solution for grid energy storage, electric vehicles, and renewable energy applications.

Eligibility

Essential Experience:

• BSc and/or Masters Degree in Chemical Engineering, Chemistry, Physics, Engineering, Mathematics, Computer Science, Data Science, Machine Learning or Artificial Intelligence
• A minimum 2:1 undergraduate degree (or equivalent)
• Excellent spoken and written English and good communication skills. Further information on English language requirements for EU/Overseas applicants.
• Experience using modelling and simulation techniques
• Literature surveys, documentation and reporting

Further information

Please direct informal enquiries and requests for further information to Dr. Peisan E (Sharel) (Email Address: Sharel.E@ed.ac.uk), and provide a CV. The University of Edinburgh is committed to equality of opportunity for all its staff and students, and promotes a culture of inclusivity: https://www.ed.ac.uk/equality-diversity