Sustainable and Safe anode-free Na battery (SuSaNa)
| Reference number | |
| Coordinator | Uppsala universitet - Uppsala universitet Inst f kemi Ångström |
| Funding from Vinnova | SEK 5 400 000 |
| Project duration | September 2022 - February 2026 |
| Status | Ongoing |
| Venture | M-ERA.NET 3 |
Important results from the project
The project achieved most of the goals outlined in the proposal, producing promising results in the development of non-flammable liquid and gel electrolytes for sodium batteries. High-throughput experimentation and predictive machine-learning models enabled the identification of compositions with improved interfacial stability and enhanced safety. Certain additive combinations were shown to mitigate degradation in anode-free configurations, resulting in improved capacity retention.
Expected long term effects
The project has provided a better understanding of non-flammable liquid and gel electrolytes and their interaction with Na metal, hard carbon anode, and Prussian white cathode materials. In the long term, these results could help with the development and commercialisation of non-flammable electrolytes for sodium batteries. This could be an important step towards making rechargeable batteries much safer.
Approach and implementation
The consortium formed by a combination of Universities (Uppsala University and DTU), research centres (CSIC, FZ Julich) and companies (Altris, PhaseTree and Accurec) to develop advanced non-flammable liquid electrolytes for sodium batteries. The project included six work packages where the partners closely worked in good collaboration to reach the project objectives within timeframe of September 2022 to February 2026.