Energy Seminar – HT25 Week 6: ‘Seeing inside’ energy materials – understanding why and how materials in electrochemical devices fail
Dr Jennifer Johnstone-Hack
- Start Tuesday 25 Feb 2025 5:00pm
- Finish Tuesday 25 Feb 2025 6:15pm
- Venue School of Geography & the Environment
- Postcode OX1 3AN
- Register for event
Summary: From batteries for electric vehicles to electrolysers for green hydrogen production, the need for electrochemical technologies is clear. These technologies rely on a range of critical minerals, making high performance and long device lifetimes essential in ensuring sufficient materials supply in the decades to come.
This talk will discuss the use of advanced imaging methods to ‘see inside’ electrochemical devices as they are operating and failing. Given the inherent relationship between device performance and materials morphology, by understanding why and how the materials inside these devices fail, we can begin to develop the tools needed for designing the more resilient electrochemical materials of the future.
Speaker: Dr Jennifer Johnstone-Hack is a Royal Academy of Engineering Researcher at the University of Sheffield. Her group’s research focuses on the complex relationship between morphology and performance in a range of electrochemical devices, including electrolysers, fuel cells and batteries. She employs X-ray and neutron imaging methods to visualise the evolution of these multiscale materials during operation and failure, and aims to design new materials architectures that improve performance and extend lifetimes of these devices.