New Electrolyte Mix Improves Vanadium Batteries

摘要

Massive electricity storage (MES) is critical to increasing the amount of wind- and solar-generated power that can be carried on the electric grid (CEP, Apr. 2009, pp. 22-25, and Mar. 2008, pp. S23-S32). One promising MES technology, vanadium redox batteries (VRBs), has been limited by its low energy density and its inability to work well over a wide range of temperatures. Researchers at the U.S. Dept. of Energy's (DOE) Pacific "Northwest National Laboratory (PNNL) have found that modifying the battery's electrolyte solution significantly improves its performance.