Molecular Design of New High-Capacity Redox Active Organic Compounds for Energy Storage and Conversion Systems

New promising organic electrode materials based on carbonyl-containing molecules for lithium power sources with high theoretical specific capacities of 500 mA h/g and higher are proposed. They have a molecular weight of more than 400 and a flat structure, which should ensure their practical insolubility in electrolytes. In the case of nitrogen-containing molecules, the specific stored energy exceeds 2.6 eV per interstitial lithium atom. Redox-active bridging molecules have also been proposed for organometallic framework structures, which, due to their porous structure, are potentially capable of fast charge-discharge processes.