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Tactile UV‐ and Solar‐Light Multi‐Sensing Rechargeable Batteries with Smart Self‐Conditioned Charge and Discharge
Author(s) -
Fang Zhengsong,
Zhang You,
Hu Xuanhe,
Fu Xinlong,
Dai Liming,
Yu Dingshan
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201903805
Subject(s) - materials science , battery (electricity) , optoelectronics , electrode , nanotechnology , responsivity , bifunctional , triboelectric effect , carbon nanotube , potentiometric sensor , photodetector , chemistry , power (physics) , composite material , physics , biochemistry , quantum mechanics , catalysis , potentiometric titration
A tactile, UV‐ and solar‐light multi‐sensing smart rechargeable Zn–air battery (SRZAB) with excellent cell performance, self‐conditioned charge/discharge, and reliable environmental responsivity is made by using multi‐scale conjugated block‐copolymer–carbon nanotube–polyurethane foam assemblies as both a self‐standing air electrode and a sensing unit. Multiscale engineering fully exploits the multi‐synergy among components to endow the newly designed metal‐free multi‐sensing air electrode (MSAE) with bifunctional oxygen reduction and evolution activities, pressure sensitivity, and photothermal and photoelectric conversion functions in a single electrode, enabling effective regulation of interface properties, electronic/ionic transport, or redox reactions in SRZAB upon various stimulations and establishing multiple working principles. MSAE‐driven SRZAB can be used as compressible power sources, self‐powered pressure and optical sensors and light‐to‐electrochemical energy systems.