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New research tackles battery performance in electric vehicles
New research on the enhancement of the lifespan and performance of lithium-ion batteries in electric vehicles has been published by experts at WMG, the University of Warwick.
The paper, published in Joule – a leading sustainable energy journal - explores charge compensation in Li-ion battery cathodes by assessing the electronic structure.
WMG scientists in collaboration with academic partners in the Faraday Institution’s Degradation and FutureCat projects have experimentally demonstrated that oxygen (rather than the transition metal, as previously believed) is the redox active species, and is responsible for the energy storage mechanism.
Matthew Ogley, PhD Researcher at WMG, who led the project together with Dr Ashok S. Menon, explained: “This work highlights the bulk stability of NMC811 cathodes within high voltage cycling windows. By now focusing on surface stabilisation to minimise degradation, our research highlights practical strategies for the creation of longer-lasting batteries, which is crucial for electric vehicles.”