Carbon-Rich Active Materials with Macrocyclic Nanochannels for High-Capacity Negative Electrodes in All-Solid-State Lithium Rechargeable Batteries

A study reports report an aromatic hydrocarbon macrocycle, [6]cyclo-2,7-naphthylene ([6]CNAP) as an active material for the negative electrode in the lithium battery. This study adds a novel macrocyclic entry to molecular materials that have just started being exploited. It also demonstrate a benefi t of solid-state electrolytes in combination with organic electrode materials, utilizing a LiBH₄ electrolyte. The study also investigates the structure-capacity relationship to reveal the critical role of the packing structures with macrocyclic nanochannels taking advantage of the discrete macrocyclic structure and high crystallinity of this material.