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Ambient Lithium–SO 2 Batteries with Ionic Liquids as Electrolytes
Author(s) -
Xing Huabin,
Liao Chen,
Yang Qiwei,
Veith Gabriel M.,
Guo Bingkun,
Sun XiaoGuang,
Ren Qilong,
Hu YongSheng,
Dai Sheng
Publication year - 2014
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.201309539
Subject(s) - ionic liquid , electrolyte , flammable liquid , battery (electricity) , lithium (medication) , absorption (acoustics) , energy density , ionic bonding , chemical engineering , inorganic chemistry , materials science , energy storage , chemistry , ion , organic chemistry , electrode , engineering physics , catalysis , thermodynamics , medicine , power (physics) , physics , engineering , composite material , endocrinology
Li‐SO 2 batteries have a high energy density but bear serious safety problems that are associated with pressurized SO 2 and flammable solvents in the system. Herein, a novel ambient Li‐SO 2 battery was developed through the introduction of ionic liquid (IL) electrolytes with tailored basicities to solvate SO 2 by reversible chemical absorption. By tuning the interactions of ILs with SO 2 , a high energy density and good discharge performance with operating voltages above 2.8 V were obtained. This strategy based on reversible chemical absorption of SO 2 in IL electrolytes enables the development of the next generation of ambient Li‐SO 2 batteries.