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Proton Self‐Doped Polyaniline with High Electrochemical Activity for Aqueous Zinc‐Ion Batteries.
- Source :
-
Small Methods . Nov2023, Vol. 7 Issue 11, p1-9. 9p. - Publication Year :
- 2023
-
Abstract
- Aqueous zinc‐ion batteries are promising energy storage devices due to their low cost, good ionic conductivity, and high safety. Conductive polyaniline is a promising cathode because of its redox activity, but because the neutral electrolyte protonates only weakly, it displays limited electrochemical activity. A polyaniline cathode is developed with proton self‐doping from manganese metal–organic frameworks (Mn–MOFs) that alleviates the deprotonation and electrochemical activity concerns arising during the charge/discharge process. The MOFs carboxyl group provides protons to prevent deprotonation and allows the polyaniline to reach a high zinc storage redox activity. The proton self‐doped polyaniline cathode has a superior specific capacity (273 mAh g−1 at 0.5 A g−1), a high rate property (154 mAh g−1 at 20 A g−1), and excellent cyclability retention (87% over 4000 cycles at 15 A g−1). This research provides fresh insight into the development of innovative polymers as cathode materials for high‐performance AZIBs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 23669608
- Volume :
- 7
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Small Methods
- Publication Type :
- Academic Journal
- Accession number :
- 173626803
- Full Text :
- https://doi.org/10.1002/smtd.202300574