Batteries have the potential to more efficiently power our portable devices, fuel our vehicles, and disrupt the way the electric grid works. But advances in battery technology have been slow to respond to the power demands of modern life. Moore's Law sees computer chips double in performance and drop their price by 50 percent every 18 to 24 months. But batteries adhere to much slower experience curves that typically see them double in performance perhaps every ten years. The stubborn refusal of battery materials to yield in price and size explains the high cost of electric vehicles and grid storage.