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Can Aqueous Zinc–Air Batteries Work at Sub‐Zero Temperatures?
Author(s) -
Zhao ChangXin,
Liu JiaNing,
Yao Nan,
Wang Juan,
Ren Ding,
Chen Xiang,
Li BoQuan,
Zhang Qiang
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202104171
Subject(s) - electrolyte , battery (electricity) , energy storage , electrochemistry , ionic conductivity , zinc , materials science , work (physics) , electrode , conductivity , chemical engineering , inorganic chemistry , chemistry , thermodynamics , metallurgy , physics , engineering , power (physics)
Efficient energy storage at low temperatures starves for competent battery techniques. Herein, inherent advantages of zinc–air batteries on low‐temperature electrochemical energy storage are discovered. The electrode reactions are resistive against low temperatures to render feasible working zinc–air batteries under sub‐zero temperatures. The relatively reduced ionic conductivity of electrolyte is identified as the main limiting factor, which can be addressed by employing a CsOH‐based electrolyte through regulating the solvation structures. Accordingly, 500 cycles with a stable voltage gap of 0.8 V at 5.0 mA cm −2 is achieved at −10 °C. This work reveals the promising potential of zinc–air batteries for low‐temperature electrochemical energy storage and inspires advanced battery systems under extreme working conditions.