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An Ultralow Temperature Aqueous Battery with Proton Chemistry
Author(s) -
Yue Fang,
Tie Zhiwei,
Deng Shenzhen,
Wang Shuai,
Yang Min,
Niu Zhiqiang
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202103722
Subject(s) - aqueous solution , battery (electricity) , electrolyte , electrochemistry , chemistry , materials science , chemical engineering , inorganic chemistry , organic chemistry , electrode , thermodynamics , power (physics) , physics , engineering
Conventional aqueous batteries usually suffer from serious capacity loss under subzero conditions owing to the freeze of electrolytes. To realize the utilization of aqueous batteries in extremely cold climates, low‐temperature aqueous battery systems have to be developed. Herein, an aqueous Pb‐quinone battery based on p‐chloranil/reduced graphene oxide (PCHL‐rGO) in H 2 SO 4 electrolyte is developed. Such aqueous Pb/PCHL‐rGO batteries display H + insertion chemistry, which endows the batteries with fast reaction kinetics and high rate capability. In addition, the hydrogen bonds between water molecules can be significantly damaged in electrolyte by modulating the interaction between SO 4 2− and water molecules, lowering the freezing point of electrolyte. As a result, the Pb/PCHL‐rGO batteries deliver extraordinary electrochemical performance even at −70 °C. This work will broaden the horizons of aqueous batteries and open up new opportunities to construct low‐temperature aqueous batteries.