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A Self‐Healing Integrated All‐in‐One Zinc‐Ion Battery
Author(s) -
Huang Shuo,
Wan Fang,
Bi Songshan,
Zhu Jiacai,
Niu Zhiqiang,
Chen Jun
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201814653
Subject(s) - materials science , vinyl alcohol , separator (oil production) , electrolyte , anode , electrochemistry , ionic conductivity , self healing hydrogels , chemical engineering , trifluoromethanesulfonate , self healing , composite number , nanotechnology , composite material , polymer , polymer chemistry , catalysis , electrode , chemistry , organic chemistry , medicine , physics , alternative medicine , pathology , engineering , thermodynamics
The self‐healing of zinc‐ion batteries (ZIBs) will not only significantly improve the durability and extend the lifetime of devices, but also decrease electronic waste and economic cost. A poly(vinyl alcohol)/zinc trifluoromethanesulfonate (PVA/Zn(CF 3 SO 3 ) 2 ) hydrogel electrolyte was fabricated by a facile freeze/thaw strategy. PVA/Zn(CF 3 SO 3 ) 2 hydrogels possess excellent ionic conductivity and stable electrochemical performance. Such hydrogel electrolytes can autonomously self‐heal by hydrogen bonding without any external stimulus. All‐in‐one integrated ZIBs can be assembled by incorporating the cathode, separator, and anode into hydrogel matrix since the fabrication of PVA/Zn(CF 3 SO 3 ) 2 hydrogel is a process of converting the liquid to quasi‐solid state. The ZIBs show an outstanding self‐healing and can recover electrochemical performance completely even after several cutting/healing cycles.