Description du projet
Une batterie plus efficace pour le stockage à grande échelle des énergies propres
Avec les préoccupations croissantes que suscite le changement climatique, on assiste à un passage progressif vers des sources d’énergie plus vertes à l’échelle mondiale. Le défi consiste à garantir que ces sources répondent à la demande croissante et à s’assurer que la question du stockage des énergies renouvelables soit correctement prise en compte. Ainsi, trouver des solutions de stockage rentables et durables pour cette énorme quantité d’énergie est une priorité absolue. Afin de tracer la voie vers la généralisation future des technologies de batteries de troisième génération pour le stockage de l’énergie à grande échelle, le projet Bi3BoostFlowBat, financé par l’UE, entend mettre au point des batteries rentables présentant à la fois un faible coût, un potentiel redox optimal et une grande solubilité. Le projet prévoit d’atteindre cet objectif en introduisant plusieurs stratégies qui permettront d’identifier les composés les plus susceptibles de donner les résultats souhaités.
Objectif
To satisfy our growing energy demand while reducing reliance on fossil fuels, a switch to renewable energy sources is vital. The intermittent nature of the latter means innovations in energy storage technology is a key grand challenge. Cost and sustainability issues currently limit the widespread use of electrochemical energy storage technologies, such as lithium ion and redox flow batteries. As the scale for energy storage is simply enormous, the only option is to look for abundant materials. However, compounds that fulfil the extensive requirements entailed at low cost has yet to be reported. While it is possible that the holy grail of energy storage will be found, for example by advanced computational tools and machine learning to design “perfect” abundant molecules, a more flexible, innovative solution to sustainable and cost-effective large-scale energy storage is required. Bi3BoostFlowBat will develop game changing strategies to widen the choice of compounds utilizable for batteries to simultaneously satisfy the requirements for low cost, optimal redox potentials, high solubility and stability in all conditions. The aim of this project is to develop cost-efficient batteries by using solid boosters and by eliminating cross over. Two approaches will be pursued for cross-over elimination 1) bio-inspired polymer batteries, where cross-over of solubilized polymers is prevented by size-exclusion membranes and 2) biphasic emulsion flow batteries, where redox species are transferred to oil phase droplets upon charge. Third research direction focuses on systems to maintain a pH gradient, to allow operation of differential pH systems to improve the cell voltages. Limits of different approaches will be explored by taking an electrochemical engineering approach to model the performance of different systems and by validating the models experimentally. This work will chart the route towards the future third generation battery technologies for the large-scale energy storage.
Champ scientifique
- natural scienceschemical scienceselectrochemistryelectric batteries
- engineering and technologyenvironmental engineeringenergy and fuelsrenewable energy
- natural scienceschemical sciencesinorganic chemistryalkali metals
- natural scienceschemical sciencespolymer sciences
- natural sciencescomputer and information sciencesartificial intelligencemachine learning
Programme(s)
Thème(s)
Régime de financement
ERC-STG - Starting GrantInstitution d’accueil
20014 Turku
Finlande