Energy storage plays a crucial role in reducing strain on the environment while meeting growing energy demands. As one of the most versatile energy storage technologies, batteries are essential to achieve the decarbonization of the transport and the power sector. Lithium-sulfur (Li-S) batteries are a strategic candidate to outperform established Li-ion systems in energy density, cost, and materials sustainability. So far there are two major issues preventing Li-S batteries from widespread practical application. First, the poor cycle life caused by polysulfide shuttling and irreversible reactions at the metallic lithium anode. Second, insufficient cell capacities due to high electrolyte amounts needed to dissolve large amounts of sulfur. ALISA will solve these limitations by optimizing the solid state sulfur to lithium sulfide conversion in ultramicroporous/macroporous carbon cathodes with liquid carbonate electrolytes. The combination of carbonate electrolytes with ultramicroporous carbons allows in principle for high cycle life (several thousand cycles) and lean electrolyte conditions. By developing novel carbide-derived and hierarchical macro-/ultramicroporous carbons with tailored pore size distributions and surface functionalities, ALISA aims for high sulfur loadings, optimized Li ion transport pathways and thus gravimetric capacities twice as high compared to nowadays intercalation-type Li ion battery materials - with practical cycle life and at practical rates. Advanced characterization techniques will quantify structure and transport from atomic scales to macro scales and provide rational design criteria for improved end-device performance, higher cycle life and thus decreased degradation.
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 958174 M-ERA.NET network: Ministrstvo za visoko šolstvo, znanost in inovacije for ALISA project (project number 9359)
Company Details
- Address
- Hajdrihova 19, Ljubljana,1001,slovenia
- Industry
- Nanotechnology Research
- NAICS
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Research and Development in Nanotechnology
- Keywords
- Saarbruecken.
- HQ
- Ljubljana
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