Abstract
Li-SO2 batteries have a high energy density but bear serious safety problems that are associated with pressurized SO2 and flammable solvents in the system. Herein, a novel ambient Li-SO2 battery was developed through the introduction of ionic liquid (IL) electrolytes with tailored basicities to solvate SO2 by reversible chemical absorption. By tuning the interactions of ILs with SO2, a high energy density and good discharge performance with operating voltages above 2.8V 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-SO2 batteries.
| Original language | English |
|---|---|
| Pages (from-to) | 2099-2103 |
| Number of pages | 5 |
| Journal | Angewandte Chemie - International Edition |
| Volume | 53 |
| Issue number | 8 |
| DOIs | |
| State | Published - Feb 17 2014 |
Keywords
- absorption
- ionic liquids
- lithium
- primary batteries
- sulfur dioxide