Waste to Watt?
| Reference number | |
| Coordinator | Selecta AB |
| Funding from Vinnova | SEK 465 000 |
| Project duration | April 2024 - November 2024 |
| Status | Completed |
| Venture | The strategic innovation programme Bioinnovation |
| Call | BioInnovation Hypothesis testing Step 1 - 2024 |
Important results from the project
We demonstrated that waste coffee grounds have a good potential to be carbonized for production of hard carbon for SiB with sufficient carbonization yield and low ash content. The carbonization protocol was developed to produce a sufficient amount of hard carbon. The anodes for both SiB and LiBs were produced and half-coin cells were assembled to verify battery performance. The project produced batteries with hard carbon that had a similar performance as commercially available hard carbons.
Expected long term effects
The developed technology has a strong potential to greatly improve the sustainability profile for coffee waste management globally. It positions Selecta as a leader not only in foodtech but in the renewable energy sector. This contributes to Europe’s resiliency in the battery material supply chain for production of hard carbon for SiBs and LiBs. As evaluated with an initial techno-economic analysis, there is a strong commercial potential for hard carbon product development using coffee grounds.
Approach and implementation
The project progressed according to the timeline with no deviations. All involved partners have demonstrated a large interest and support in fulfilling the project scope. Selecta has coordinated the project and published a project news update. RISE team has conducted carbonization of coffee grounds, advanced material characterization and prepared SiB coin cells to test the performance. Granode Materials team has successfully prepared LiB coin cells and evaluated their performance.