Publications

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Propulsion Electrification
Carbon Fibre Lattice Strain Mapping Via Microfocus Synchrotron X-Ray Diffraction of a Reinforced Composite

Carbon

Student(s):  Thomas Barthelay, Dr Rob Gray

Cohort:  Cohort 1

Date:  August 11, 2022

Link:  View publication


Thomas and Rob aided a Synchrotron X-Ray diffraction (SXRD) strain analysis experiment on Carbon Fibre Reinforced Polymers (CFRPs), at Diamond Lightsource. This was the first micro-scale quantification of micro-scale lattice strain in carbon fibre. This work determines the effect of load has on the axial and longitudinal strain of turbostratic atomic structure of the composite material.

Propulsion Electrification
Carbon fibre based electrodes for structural batteries

Journal of Materials Chemistry A

Student(s):  Dr Thomas Barthelay, Dr Rob Gray, Paloma Rodriguez

Cohort:  Cohort 1

Date:  August 08, 2024

Link:  View publication


Carbon fibre based electrodes offer the potential to significantly improve the combined electrochemical and mechanical performance of structural batteries in future electrified transport. This review compares carbon fibre based electrodes to existing structural battery electrodes and identifies how both the electrochemical and mechanical performance can be improved. In terms of electrochemical performance achieved to date, carbon fibre based anodes outperform structural anode materials, whilst carbon fibre based cathodes offer similar performance to structural cathode materials. In addition, while the application of coating materials to carbon fibre based electrodes can lead to improved tensile strength compared to that of uncoated carbon fibres, the available mechanical property data are limited; a key future research avenue is to understand the influence of interfaces in carbon fibre based electrodes, which are critical to overall mechanical integrity. This review of carbon fibre based electrode materials, and their assembly strategies, highlights that research should focus on sustainable electrode materials and scalable assembly strategies.