A hydrocarbon molecule as supplier and energy storage solution for solar energy

https://phys.org/news/2024-04-hydrocarbon-molecule-supplier-energy-storage.html

"at least 30% of original converted energy lost using battery storage... new type of organic solar modules either convert sunlight into electricity or long term chemical storage... norbornadiene 2 molecule rings hydrocarbon isomer exposed to UV partially reorganizing atomic bonds, converting to similarly structured but more highly strained quadricyclane... enables recovery from storage as electricity (not just heat)... energy density comparable to lithium-ion battery... future: not just UV but wide sunlight spectrum"