Crystals of macrocyclic aromatic molecules with nanopore structures: High-capacity negative electrode materials for all-solid-state lithium ion batteries
Sota SATO1,2, Hiroyuki ISOBE1,2
Rechargeable lithium batteries are indispensable energy reservoirs in modern devices. Graphite is an emerging target for replacement to further advance battery technology along with novel all-solid-state architectures. Nanocarbon materials are some of the most intriguing substitutes with excess lithium storage. However, the solid-state chemistry of carbonaceous electrodes necessary for the further development is still in its infancy. We show that a nanocarbon-inspired, aromatic hydrocarbon macrocycle with a discrete structure is a promising material for the active material in the electrodes. Despite being the first hydrocarbon molecule to be applied to negative electrodes, the molecular material demonstrated large lithium storage capacity that surpassed that of graphite. Structural information with an atomic precision revealed the critical role of packing structures.
- 1 Department of Chemistry, Graduate School of Science, The University of Tokyo
- 2 Japan Science and Technology Agency (JST), Exploratory Research for Advanced Technology (ERATO) Isobe Degenerate π-Integration Project