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

• DOI: 10.1039/c4ee00407h
• Publication Date: 2014-03-17T13:02:16Z
• Authors: Yu Zhao; Yu Ding; Jie Song; Lele Peng; John B. Goodenough; Guihua Yu
• Keywords: 01 natural sciences; 7. Clean energy; 0104 chemical sciences

An aqueous catholyte based on the sole bromine/bromide redox couple shows an operating potential of ∼4 V, a reversible capacity 290 mA h g⁻¹, and specific power density approaching 1000 W kg⁻¹, making it candidate for sustainable electrical energy storage.