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Zinc–Organic Battery with a Wide Operation‐Temperature Window from −70 to 150 °C
Author(s) -
Wang Nan,
Dong Xiaoli,
Wang Bingliang,
Guo Zhaowei,
Wang Zhuo,
Wang Renhe,
Qiu Xuan,
Wang Yonggang
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202005603
Subject(s) - anode , aqueous solution , zinc , cathode , battery (electricity) , chemistry , electrochemistry , electrolyte , inorganic chemistry , galvanic anode , trimer , foil method , electrochemical window , dendrite (mathematics) , chemical engineering , electrode , materials science , organic chemistry , dimer , cathodic protection , power (physics) , physics , geometry , quantum mechanics , ionic conductivity , mathematics , composite material , engineering
Aqueous zinc (Zn) batteries have been considered as promising candidates for grid‐scale energy storage. However, their cycle stability is generally limited by the structure collapse of cathode materials and dendrite formation coupled with undesired hydrogen evolution on the Zn anode. Herein we propose a zinc–organic battery with a phenanthrenequinone macrocyclic trimer (PQ‐MCT) cathode, a zinc‐foil anode, and a non‐aqueous electrolyte of a N , N ‐dimethylformamide (DMF) solution containing Zn 2+ . The non‐aqueous nature of the system and the formation of a Zn 2+ –DMF complex can efficiently eliminate undesired hydrogen evolution and dendrite growth on the Zn anode, respectively. Furthermore, the organic cathode can store Zn 2+ ions through a reversible coordination reaction with fast kinetics. Therefore, this battery can be cycled 20 000 times with negligible capacity fading. Surprisingly, this battery can even be operated in a wide temperature range from −70 to 150 °C.