Description du projet
Un nouveau concept de piles au calcium fiables
La croissance des énergies renouvelables passe par le développement de nouveaux instruments de stockage de l’énergie. Les batteries au lithium (LiB), une solution fiable, sont aujourd’hui utilisées dans les instruments électroniques, les véhicules électriques et les installations de stockage fixes. Mais à terme, la demande croissante de stockage entrera en conflit avec le problème du manque de ressources. Des solutions post-LiB telles que les technologies au sodium, au magnésium ou au calcium ont vu le jour. Elles présentent un potentiel élevé en termes de densité théorique, de sécurité et de durabilité. Toutefois, l’absence d’électrolytes fiables retarde la recherche pratique sur les piles rechargeables au calcium. Le projet VIDICAT, financé par l’UE, entend développer un nouveau concept de matériau basé sur les ionomères nanocomposites qui fournira des électrolytes extrêmement stables. Le projet va également explorer la piste les électrodes positives dans le cadre de son travail de développement de CaBs fiables et sûrs.
Objectif
Improving energy management is vitaI for the future. It implies greener production ways and smarter conversion and storage devices. For the latter, lithium batteries (LiB) have flooded the market of electronic devices and are now also powering electric vehicles and stationary storage plants. The huge energy storage-demand involves an explosion of the battery production, which will face in the future the problem of limited resources, unlocated in Europe. Therefore, it is important to investigate alternative batteries. Recent years have seen the emergence of post-LiB, like sodium-, magnesium- or calcium technologies. The last one is very promising in terms of theoretical energy density, safety, and sustainability. However, the lack of reliable electrolytes so far impedes the practical research on rechargeable calcium batteries, CaB. In this proposal VIDICAT aims at developing a new material concept based on nanocomposite ionomers acting both as liquid-free electrolyte and electrode binders. Such approach will provide at the interface with calcium, highly chemically, electrochemically and thermally stable polymer electrolytes. Due to outstanding mechanical performance, very thin electrolytes (1 µm) are targeted, with cationic conductance close to standard lithium ones. In the frame of developing this ground-breaking electrolyte concept, VIDICAT will also search for positive electrodes with the final challenging purpose of proposing reliable and safe CaB. Innovation is omnipresent as the targeted negative and positive electrodes have never been evaluated with liquid-free ionomers as electrolyte and binder. Nonetheless, VIDICAT objective is the achieving of a CaB prototype reaching energy density similar to State of Art LiB. Multidisciplinary, VIDICAT will increase EU capacity building in low-carbon energy. Based on sustainable ores, VIDICAT will prevent the loss of non-renewable chemicals and paves the way for Europe energetic independence.
Champ scientifique
- natural scienceschemical scienceselectrochemistryelectric batteries
- social sciencessocial geographytransportelectric vehicles
- natural scienceschemical sciencesinorganic chemistryalkali metals
- natural scienceschemical sciencesinorganic chemistryalkaline earth metals
- natural scienceschemical sciencespolymer sciences
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RIA - Research and Innovation actionCoordinateur
28903 Getafe (Madrid)
Espagne