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ARPA-E showcases advanced batteries, biofuel innovations

The US Department of Energy’s 2011 ARPA-E Energy Innovation Summit Technology Showcase is now under way in Washington, DC.

Among the companies and technologies being highlighted are:

  • Berkeley, California-based PolyPlus Battery Company, which is developing a lithium-air battery it says could enable an electric car to travel 500 miles on a single charge.
  • Agrivida, which is working on “integrated enzyme-feedstock systems” that it claims could transform the biomass conversion process.
  • OpX Biotechnologies, which is exploring the use of hydrogen gas to convert carbon dioxide into biodiesel for less than $2.50 per gallon.
  • North Carolina-based Cree, which is working on advanced silicon carbide power transistors that could dramatically improve efficiencies for power substations and other power grid applications.

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