Inorganic Electrode Coatings for Increased Temperature and Cycle Life Performance

With the increase in the utilization of intermittent renewables such as wind and solar PV, integration of these resources into the existing grids requires a means of leveling the output. Batteries have been targeted as one possible means of achieving this, requiring increases in cycle and calendar life to ensure greater than 15 years of service. Altairnano has been developing large format batteries for use in frequency regulation as well as renewables integration. We have demonstrated power density in excess of 4000 watts per kilogram, a cycle life on the order 25,000 at 100% depth of discharge and 8C charge/discharge rate. To further increase the operating temperature range of these cells Altairnano plans to reduce electrolyte decomposition reactions by altering the surface chemistry of the electrodes. Commercial Applications and Other Bene