Selection of quaternary ammonium bromides for use in zinc/bromine cells
Abstract
Various cyclic and aliphatic quaternary ammonium bromides have been tested for use in zinc/bromine battery electrolytes. No single compound can be used over the temperature range 0-50°C due to crystallization of solid materials from either the polybromide or the aqueous phases. Electrolytes containing mixtures of quaternary ammonium bromides can avoid this problem of crystallization, and electrolytes containing 1:1 mixtures of N-methyl- N-ethylpyrrolidinium bromide with either N-methyl- N-ethylmorpholinium bromide or dimethylethylpropylammonium bromide have proved acceptable. The performance of a small zinc/bromine cell using electrolytes prepared from various quaternary ammonium bromides is described.
- Publication:
-
Journal of Power Sources
- Pub Date:
- 1986
- DOI:
- 10.1016/0378-7753(86)80091-X
- Bibcode:
- 1986JPS....18..349C