Description du projet
Des batteries structurelles avancées pour les avions électriques hybrides de la prochaine génération
Le projet SOLIFLY, financé par l’UE, répondra à l’appel européen en faveur de solutions de stockage électrique à haute densité de puissance et multifonctionnelles pour des applications aéronautiques, en travaillant sur un concept de batterie innovant. Les nouvelles batteries seront notamment constituées de matériaux multifonctionnels à fort degré d’intégration (fibres de carbone revêtues) et d’éléments multifonctionnels de degré moyen d’intégration (empilements multicouches renforcés). SOLIFLY a pour ambition de livrer le premier panneau aéronautique raidi avec une batterie lithium-ion semi-solide intégrée. Les travaux du projet permettront de faire des batteries structurelles une technologie viable pour la prochaine génération d’avions de passagers électriques hybrides.
Objectif
SOLIFLY responds in full to the challenges of the JTI-CS2-2020-CfP11-THT-11 call, “High Power density / multifunctional electrical storage solutions for aeronautic applications”, by developing and combining two structural battery concepts: (i) multi-functional materials with a high degree of integration - Coated Carbon Fibres (CCF), and (ii) multi-functional elements with a medium degree of integration - Reinforced Multilayer Stack (RMS).
The project has three vertical objectives:
• exploring and advancing a non-conventional semi-solid-state Li-ion battery material formulation suit-able for structural batteries: NMC622 (cathode), Si/C (anode) and bicontinuous polymer-ionic liquid electrolyte (BCE), i.e. NMC622|BCE|Si/C;
• enabling the functional integration of this material within the CCF and RMS concepts, upscaling them to the level of a representative aeronautic stiffened panel structure, i.e. SOLIFLY demonstrator;
• characterising the electrochemical and mechanical performance of this demonstrator.
These vertical objectives are complemented with a horizontal one: to tailor SOLIFLY to the needs of the aeronautic industry. This is achieved by factoring end-user requirements and specifications into the design process right from the start, and by including airworthiness and manufacturing criteria together with a technology roadmap and TRL scale-up strategy. The SOLIFLY demonstrator aims at achieving a gravimetric energy density at cell level between 100 and 180 Wh/kg, a nominal discharge rate of 1C, being capable of sustaining 300+ cycles at 0.1C with 90% capacity retention and achieving TRL 4 by the end of the project (2023).
SOLIFLY ultimately aims at supporting the long-term development of the European aeronautic industry, delivering the first aeronautic stiffened panel with an integrated semi-solid-state battery, and paving the way for making structural batteries a viable technology for the next generation hybrid electric airliner.
Champ scientifique
Mots‑clés
Programme(s)
Régime de financement
RIA - Research and Innovation actionCoordinateur
1210 Wien
Autriche