| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 180357 | Electrochemistry Communications | 2011 | 4 Pages |
The effect of lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) on the oxygen redox reaction (ORR) in several pyrrolidinium-based ionic liquids (ILs) is investigated by cyclic voltammetry. The results are compared to those found with LiTFSI-tetraglyme and LiTFSI-1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone solutions. The effect of the addition of tris(pentafluorophenyl) borane (TPFPB) to IL-LiTFSI solutions is also investigated. The results demonstrate that the presence of 0.1 M Li+ renders the ORR similar in the investigated ILs, lowers the reduction voltammetric currents and makes ORR electrochemically irreversible. The addition of TPFPB to IL-TFSI solutions favours the solubility of oxygen-based products of Li+ and should positively affect the performance of IL-based lithium-air batteries.
► Ionic liquid-based electrolytes for lithium-air batteries ► Oxygen reduction in ionic liquids with and without lithium salt ► Effect of TPFPB borane additive on oxygen reduction in ionic liquid solutions
