The problem: Electrifying transport and storing electricity from renewable intermittent sources is mandatory for a carbon neutral society. Best in class energy density helped Lithium ion batteries (LIB) to now widespread use, givi...
ver más
Descripción del proyecto
The problem: Electrifying transport and storing electricity from renewable intermittent sources is mandatory for a carbon neutral society. Best in class energy density helped Lithium ion batteries (LIB) to now widespread use, giving a taste of the full promise of electrochemical energy storage (EES). However, they rely on scarce elements with associated major cost and energy input for production. Hence, the required giant scale deployment makes no sense ecologically nor economically. Alternative EES devices – supercapacitors and redox flow batteries – each alleviate some of the weaknesses of LIB such as power, used elements, and safety, but remain critically weak in energy per unit weight and mass. Overall, a carbon neutral society has critical demand for environmentally benign EES, which combines the best features of these technologies.
Success and troubles of LIBs stem from the used transition metal compounds (e.g., based on Cobalt). Being solid and dense, they allow for high energy, but processes are slow in solids, restricting power. Further, transition metals are scarce, expensive, and energy hungry in production.
Therefore, the ideal redox material was based on main group elements, liquid, and had solid-like redox density.
The solution: In the ERC StG project OMICON, we discovered such a class of low molecular weight organic redox materials with exciting features: (i) They are liquid in pure form and dissolve salts, being active material and electrolyte at once. (ii) They are reduced and oxidized with a significant voltage difference, hence can act as anode and cathode material. (iii) they are mixed conducting, allowing for very high volume occupation in the electrode. (iv) being liquid, a redox flow battery with unmatched energy density is possible. (v) Consisting of mainly C, O, and H, the materials are accessible in cheap, scalable synthesis from bulk raw materials.
Seleccionando "Aceptar todas las cookies" acepta el uso de cookies para ayudarnos a brindarle una mejor experiencia de usuario y para analizar el uso del sitio web. Al hacer clic en "Ajustar tus preferencias" puede elegir qué cookies permitir. Solo las cookies esenciales son necesarias para el correcto funcionamiento de nuestro sitio web y no se pueden rechazar.
Cookie settings
Nuestro sitio web almacena cuatro tipos de cookies. En cualquier momento puede elegir qué cookies acepta y cuáles rechaza. Puede obtener más información sobre qué son las cookies y qué tipos de cookies almacenamos en nuestra Política de cookies.
Son necesarias por razones técnicas. Sin ellas, este sitio web podría no funcionar correctamente.
Son necesarias para una funcionalidad específica en el sitio web. Sin ellos, algunas características pueden estar deshabilitadas.
Nos permite analizar el uso del sitio web y mejorar la experiencia del visitante.
Nos permite personalizar su experiencia y enviarle contenido y ofertas relevantes, en este sitio web y en otros sitios web.