Objective The future of widespread clean energy relies heavily on understanding, developing, and optimizing materials for electrochemical energy storage. To date, a limited understanding of how short-range structures influence macroscopic device properties during operation has hindered implementation of promising technologies such as sodium-ion batteries. Here, we aim to use NMR spectroscopy to provide molecular-level insight into the chemical mechanisms underpinning structural and dynamic changes in novel phosphorus- and phosphide-based anodes and correlate these changes with sodium-ion performance figures or merit, including capacity, retention, charging rates, and lifetime. The impact of anode structure and dynamics on electrochemical properties in batteries will provide insight into new materials that can achieve high performance for electrochemical energy storage. Fields of science natural scienceschemical scienceselectrochemistryelectric batteriesnatural scienceschemical sciencesinorganic chemistrytransition metalsnatural sciencesphysical sciencesopticsspectroscopyabsorption spectroscopynatural scienceschemical sciencesinorganic chemistrymetalloidsnatural sciencesmathematicsapplied mathematicsmathematical model Keywords Sodium-ion battery Anode NMR Spectroscopy Energy In-situ Phosphorus Metal Phosphide Programme(s) H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility Topic(s) MSCA-IF-2016 - Individual Fellowships Call for proposal H2020-MSCA-IF-2016 See other projects for this call Funding Scheme MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF) Coordinator THE CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE Net EU contribution € 183 454,80 Address TRINITY LANE THE OLD SCHOOLS CB2 1TN Cambridge United Kingdom See on map Region East of England East Anglia Cambridgeshire CC Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Total cost € 183 454,80