Jump to main content
Jump to site search

Issue 6, 2014
Previous Article Next Article

A reversible Br2/Br redox couple in the aqueous phase as a high-performance catholyte for alkali-ion batteries

Author affiliations

Abstract

An aqueous catholyte for Li-ion redox batteries employing reversible Br2/Br redox reactions is investigated. The catholyte uses lithium bromide as the active material and potassium bromide aqueous solution as the supporting electrolyte. By tuning the acidity of the catholyte, stable cyclability of the cell has been achieved at room temperature with a discharge potential of ∼3.9 V, a reversible capacity of 290 mA h g−1, and a specific power density of ∼1000 W kg−1. Compared with the catholytes used in conventional redox-flow batteries, the reported catholyte is heavy-metal-free and can be operated in moderate acidity, providing an alternative option for sustainable electrical energy storage.

Graphical abstract: A reversible Br2/Br− redox couple in the aqueous phase as a high-performance catholyte for alkali-ion batteries

Back to tab navigation

Supplementary files

Article information


Submitted
04 Feb 2014
Accepted
17 Mar 2014
First published
17 Mar 2014

Energy Environ. Sci., 2014,7, 1990-1995
Article type
Paper
Author version available

A reversible Br2/Br redox couple in the aqueous phase as a high-performance catholyte for alkali-ion batteries

Y. Zhao, Y. Ding, J. Song, L. Peng, J. B. Goodenough and G. Yu, Energy Environ. Sci., 2014, 7, 1990
DOI: 10.1039/C4EE00407H

Social activity

Search articles by author

Spotlight

Advertisements