Image: ACS, Yang et al. Theoretical Energy Density: 1550 kWh/KG ! A few months ago I wrote about a battery breakthrough related to silicon nanowire anodes . The researchers said that it showed great promise, but that one of the main challenges to its commercialization was finding a cathode that could handle all this extra power. Well, it looks like that problem has been solved (that was quick!) thanks to a new lithium sulfide (Li2S) cathode with 10 times the power density of co… Read the full story on TreeHugger

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Lithium-Sulfur Breakthrough Could Mean Safer and More Energy-Dense Batteries