Details
The goal of this project is to develop novel high-power density batteries. One prime candidates are the new generation of lithium(Li)-sulphur(S) batteries. Li-S batteries have been shown to have a charge density 5 times larger than the actual Li-ion batteries. The development of Li-S batteries is however hindered by mechanical stresses induced during cycling (successive charge-discharge). Cycling induces the formation of dendrites, cracking, and diffusion of ions across the different layers. These phenomena hamper the batteries’ ability to recharge and deliver current.
The physico-chemical processes leading to these phenomena are unfortunately under debate. As a result, the development of new batteries suffers from the current hypothesis-based synthesis. Accordingly, the objective of this project is to investigate the atomic and molecular processes that are leading to the batteries’ degradation while cycling.
More specifically, we intend to use the latest laser-based ultrafast spectroscopies to monitor the intrinsic charge and nuclear dynamics taking place within the batteries while in use. The aim is to correlate these intrinsic chemical reactions with the batteries’ macroscopic degradation and overall efficiency. Such correlations will provide with a robust pathway to develop more efficient and durable batteries.
You will be part of an active, interdisciplinary research team at the University of Sheffield. This project will be jointly supervised by Dr Adrien Chauvet (an expert in spectroscopy), Prof. Serena Cussen (an expert in battery technology).
Interested candidates are strongly encouraged to contact the project supervisors to discuss your interest in and suitability for the project prior to submitting your application.
Please refer to the EPSRC DTP webpage for detailed information about the EPSRC DTP and how to apply.
Project ID: CHM-08-Chauvet
Funding Notes
The award will fund the full (UK or Overseas) tuition fee and UKRI stipend (currently £18,622 per annum) for 3.5 years, as well as a research grant to support costs associated with the project.
