1. An Efficient Rechargeable Aluminium–Amine Battery Working Under Quaternization Chemistry
- Author
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Wang, Gang, Dmitrieva, Evgenia, Kohn, Benjamin, Scheler, Ulrich, Liu, Yannan, Tkachova, Valeriya, Yang, Lin, Fu, Yubin, Ma, Ji, Zhang, Panpan, Wang, Faxing, Ge, Jin, and Feng, Xinliang
- Subjects
Chemical Sciences ,Physical Chemistry ,Affordable and Clean Energy ,Al-Ion Batteries ,Amine ,Anion Storage ,Quaternization ,Organic Chemistry ,Chemical sciences - Abstract
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 Al batteries, which restricts the exploration of cathode materials. Herein, we demonstrate an efficient Al-amine battery based on a quaternization reaction, in which nitrogen (radical) cations (R3 N.+ or R4 N+ ) are formed to store the anionic Al complex. The reactive aromatic amine molecules further oligomerize during cycling, inhibiting amine dissolution into the electrolyte. Consequently, the constructed Al-amine battery exhibits a high reversible capacity of 135 mAh g-1 along with a superior cycling life (4000 cycles), fast charge capability and a high energy efficiency of 94.2 %. Moreover, the Al-amine battery shows excellent stability against self-discharge, far beyond conventional Al-graphite batteries. Our findings pave an avenue to advance the chemistry of RABs and thus battery performance.
- Published
- 2022