An Efficient Rechargeable Aluminium–Amine Battery Working Under Quaternization Chemistry

Rechargeable aluminium (Al) batteries (RABs) have long-been pursued due to the high sustainability and three-electron-transfer properties of Al metal. However, limited redox chemistry is available for rechargeable batteries, which restricts exploration cathode materials. Herein, we demonstrate an efficient Al–amine battery based on a quaternization reaction, in nitrogen (radical) cations (R3N.+ or R4N+) are formed store anionic complex. The reactive aromatic amine molecules further oligomerize during cycling, inhibiting dissolution into electrolyte. Consequently, constructed exhibits reversible capacity 135 mAh g?1 along with superior cycling life (4000 cycles), fast charge capability energy efficiency 94.2 %. Moreover, shows excellent stability against self-discharge, far beyond conventional Al–graphite batteries. Our findings pave avenue advance RABs thus performance.