Description du projet
Des batteries à électrolyte de soufre solide pour des applications de VE
Dans la mesure où les transports sont responsables d’environ un quart des émissions mondiales de gaz à effet de serre, le développement des véhicules électriques (VE) est considéré comme une nécessité absolue. Le projet SUBLIME, financé par l’UE, vise à accroître considérablement l’utilisation des VE en relevant les défis posés par les besoins des consommateurs. Ceux-ci sont principalement liés à la réduction des coûts des VE, tout en améliorant leurs capacités de conduite sur de plus grandes distances et en permettant un chargement rapide. Le projet SUBLIME aidera à développer une chaîne de valorisation complète pour des cellules de batteries à électrolyte de soufre solide à forte capacité et présentant une stabilité élevée en matière de tension électrique.
Objectif
Wide global deployment of electric vehicles (EVs) is necessary to reduce transport related emissions, as transport is responsible for around a quarter of EU greenhouse gas (GHG) emissions, and more than two thirds of transport-related GHG emissions are from road transport. SUBLIME’s overall aim is to significantly increase EV adoption by taking on the technical challenges that are presented by the consumer needs - especially the reduction in costs of EVs, increasing their capabilities regarding long distance traveling and fast charging.
SUBLIME concept entails development of a complete value chain, from requirements to testing, for new sulfide electrolyte based solid-state battery cells with high capacity and high voltage stability (scalable to mass production) to reach gravimetric energy density of >450 Wh/kg and volumetric Energy density of >1200 Wh/l. SUBLIME proposes the usage of high capacity and high voltage electrode materials. Li metal as anode (LiM), Ni rich NMC material e.g. or NMC90505 as cathode are foreseen to be used to achieve the targeted energy density. The battery will be inherently safe and will be able to operate at room temperature or lower; thus facilitating the start of the vehicle in broad operating conditions. Interfaces showing a fast Li-ion transport will be developed in the project and partners will focus on developing intimate and (electro)-chemically stable interfaces with strong mechanical properties. The interfaces will be specifically designed to increase stability of the component and the malleable nature of the sulfide enables good interfacial contact.
SUBLIME will bring the sulfide electrolyte solid-state battery technology to TRL 6. The scale-up to pre-industrial volume will ensure that results are, indeed, scalable to large-volume commercial manufacturing. SUBLIME will deliver a roadmap to 2030, enabling eventual market entry by a very strong constellation of European partners, to bring about the transition towards electric
Champ scientifique
Mots‑clés
Programme(s)
Régime de financement
RIA - Research and Innovation actionCoordinateur
52078 Aachen
Allemagne