Green Car Congress

APRIL 1, 2011

John Goodenough, are proposing a strategy for high-capacity next-generation alkali (lithium or sodium)-ion batteries using water-soluble redox couples as the cathode. The present sodium-sulfur battery operates above 300 °C. A = lithium or sodium (Li or Na), M represents a metal and 1 ≤ n < z. —Lu et al.

Sodium 218

Sodium Water Li-ion Texas 218

Green Car Congress

NOVEMBER 25, 2009

Improved energy storage technologies will allow for expanded integration of renewable energy resources like wind and photovoltaic systems and will improve frequency regulation and peak energy management. Tehachapi Wind Energy Storage Project. Notrees Wind Storage. Wind Firming EnergyFarm. 29,561,142. 125,006,103.

Energy Storage 270

Energy Storage Grid Energy Wind 270

Green Car Congress

APRIL 12, 2015

Other work focuses on sodium as an earth-abundant alternative to lithium, but while it could lower cost, sodium ions also carry just a single charge. Because solar and wind energy are intermittent, producing energy only when the sun shines or the wind blows, a method to capture and store energy for later use is needed.

MIT 150

MIT Li-ion Batteries Battery 150