An integrated oxygen electrode derived from a flexible single-walled carbon nanotube film for rechargeable Zn-air batteries produced by electropolymerization

نویسندگان

چکیده

Abstract The development of low-cost, high-activity, and durable integrated bifunctional flexible air electrodes for use in Zn-air batteries is both challenging important. We report a simple scalable electropolymerization method used to prepare an electrode material comprising heavily N-doped carbon covering single-walled nanotube (N/C-SWCNT) networks. resulting core/shell structure the hybrid enabled flexibility, mechanics, three-dimensional interconnected porous SWCNT films while containing abundant pyridinic N, which provided excellent catalytic activity oxygen reduction evolution reactions (overpotential gap = 0.76 V). A binder-free battery using N/C-SWCNT film as was assembled showed high peak power density 181 mW/cm 2 , specific capacity 810 mAh/g stable discharge‒charge cycling performance. also constructed solid-state featuring not only 22 but good flexibility stability.

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ژورنال

عنوان ژورنال: Npg Asia Materials

سال: 2023

ISSN: ['1884-4049', '1884-4057']

DOI: https://doi.org/10.1038/s41427-022-00441-0