Scalable Sustainable Anodes for Li-ion Batteries by Structural Design
| Reference number | |
| Coordinator | Uppsala universitet - Uppsala universitet Inst f kemi Ångström |
| Funding from Vinnova | SEK 3 772 900 |
| Project duration | August 2022 - July 2025 |
| Status | Completed |
| Venture | M-ERA.NET 3 |
Important results from the project
The overall objectives of SUSTBATT were to (i) cultivate homogeneous batches of diatoms containing selected species, (ii) synthesize SiOx (0≤x≤2) compounds from diatom-SiO₂ through magnesiothermic reduction (MgTR), (iii) fabricate and test SiOx-based composite anodes and prototype full-cells, (iv) apply multi-probe and multi-scale characterization to elucidate performance–structure correlations. All these goals were met within the project.
Expected long term effects
The use of Si K-edge X-ray absorption spectroscopy, which is unusual since most beam lines at synchrotron facilities do not cover this range, will most likely be used by a large part of the battery community for implementing Si into battery electrodes.
Approach and implementation
The project was divided into 6 different work packages (WPs); 1) project management and data management, 2) diatom cultivation and fabrication of lab-scale SiOx electrodes, 3) scale-up of SiOx electrodes and fabrication of full cells, 4) advanced characterization, 5) pre-lithiation, 6) commercialization. The project partners often worked in several WPs within the project, digital meetings were usually held every week to correlate results and discuss any difficulties and strategies.