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The quest for cheap, sustainable and high-performance rechargeable batteries: The case of sodium-ion batteries explored with Nuclear Magnetic Resonance and ab initio simulations

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If you have a question about this talk, please contact Evros Loukaides .

Will cheap, sustainable sodium-ion batteries soon replace the current lithium-ion battery technology? One of the main challenges to be overcome for the commercialisation of sodium-ion batteries lies in finding better sodium-ion cathode materials. Sodium manganese oxides typically have a high energy density per unit volume but undergo a number of phase transitions upon electrochemical cycling which limit their cycle life. In this talk we will see how solid-state NMR and ab initio (Density Functional Theory) simulations can be used in combination to understand the structural and electronic processes occurring upon electrochemical cycling of sodium manganese oxides and to devise ways of improving the performance of this family of compounds. In particular, we have found that dopant species on the transition metal lattice enhance the structural stability and the electrochemical properties of these cathode materials.

This talk is part of the Darwin College Science Seminars series.

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