Energy Research Accelerator (ERA) Project: Investigation of Novel Anodes for Hybrid Ion Batteries

An exciting opportunity to work for your PhD as part of our Energy Systems research group at WMG, University of Warwick .
Lithium batteries are useful and versatile energy storage devices for a wide array of applications (and are still the favoured contender for transport electrification). However, alternative disruptive technologies are required if a step change in power and energy is to be realised. There has been a more recent concerted acceleration of the research around Na and K-ion systems, with clear benefits seen regarding the ubiquitous nature of these elements compared with Li.

This project will develop novel anode materials for a mixed cation or hybrid-ion batteries. Other studies on mixed ion approaches have used aqueous electrolyte systems, but the energy density of these batteries was limited. You will investigate the intercalation and conversion reactions in a range of hydrothermally synthesized composite materials, such as carbons with transition metal oxides and sulphides for mixed alkali (Li, Na and K) cation batteries. In parallel, the electrolyte systems of these novel batteries will be developed to optimise the compatibility of the hybrid ion approach. The materials will be analysed using powder x-ray diffraction, particle size and surface area techniques with comprehensive electrochemical testing to elucidate their performance.

Characterisation will incorporate some solid-state NMR investigations (in-situ where appropriate) to illuminate the mechanisms of charge-discharge reactions in mixed ion systems. The aim is therefore to develop a novel anode for a hybrid-ion battery and improve upon the power aspects and energy of these materials compared to lithium ion only.

Objectives:
- Investigate novel carbons and composites for mixed cation anodes
- Establish and validate material and electrochemical test methods for new battery chemistries.
- Comprehensive electrochemical testing and post-mortem analysis of the anodes in 2 and 3
electrode configurations
- Synthesise and characterise novel mixed oxide and sulphide materials

BACKGROUND TO ERA
The Energy Research Accelerator (ERA) is a cross-disciplinary energy innovation hub which brings together capital assets, data and intellectual leadership to foster collaboration between academia and business to accelerate the development of solutions to the global energy challenge.

Through the Midlands Energy Consortium (MEC), Midlands’ universities have already worked closely to deliver essential research and postgraduate skills – clustering energy research and development to deliver technologies capable of enabling the UK’s transition to a low-carbon economy. ERA is the next step along that journey to become a major hub for energy talent. ERA is a key programme within Midlands Innovation – a consortium of research intensive universities which has the overall aim of harnessing the Midlands’ combined research excellence and industry expertise to play a critical role in tackling some of the biggest challenges facing the UK.