“Proton‑Iodine” Regulation of Protonated Polyaniline Catalyst for High‑Performance Electrolytic Zn‑I2 Batteries (IMAGE)
Caption
- A three-dimensional polyaniline wrapped by carboxyl-carbon nanotubes (denoted as C-PANI) is designed as a catalytic cathode to effectively boost direct I0/I− conversion for improved Zn-I2 batteries.
- Carboxyl-carbon nanotubes serve as a proton reservoir for more protonated –NH+ = sites in PANI chains, achieving “proton-iodine” regulation for suppressed polyiodide shuttling and Zn corrosion.
- Electrolytic Zn-I2 battery with C-PANI cathode exhibits an impressive capacity of 420 mAh g−1 and ultra-long lifespan over 40,000 cycles.
Credit
Mengyao Liu, Kovan Khasraw Abdalla, Meng Xu, Xueqian Li, Runze Wang, Qi Li, Xiaoru Zhang, Yanan Lv, Yueyang Wang, Xiaoming Sun, Yi Zha*.
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License
CC BY-NC-ND