Aluminum Foil coating with Graphene as Current Collector of LiFePO4 Cathode in Lithium-ion Battery
| Reference number | |
| Coordinator | Mittuniversitetet - Inst f ingenjörsvetenskap matematik & ämnesdidaktik IMD |
| Funding from Vinnova | SEK 995 200 |
| Project duration | November 2024 - June 2025 |
| Status | Completed |
| Venture | Impact Innovation Metals & Minerals - Program-specific efforts Vinnova |
| Call | Impact Innovation: Feasibility studies within Technological Action Areas in the program Metals & Minerals |
Important results from the project
A graphene slurry that provides a smooth and homogeneous coating on an Al foil was developed. We showed that coating the slurry on the foil using the ‘doctor blade’ technique can produce a 1.5 µm thick graphene film with high adhesion to the foil.Electrochemical measurements on Li/LFP battery cells showed that the graphene coated Al foil is comparable to commercial current collectors made of carbon-coated Al.Our analysis shows that the graphene coating protected the foil from corrosion.
Expected long term effects
The results of this project contribute to the development of self-produced aluminum-based current collectors for the European battery market and thereby to the development of European battery production capacity. The project also contributes to the transition in Sweden and Europe from fossil fuel-based energy to green energy and a sustainable society.
Approach and implementation
The project was implemented in accordance with the project plan. The project participants all contributed knowledge in their areas of expertise, which include the development and production of graphene, aluminum foil, and batteries. All project participants were actively involved in performing experiments, analyzing measurements, discussing, and drawing conclusions. The project execution has been characterized by constructiveness, good cooperation, and good goal achievement.