(Kevin Bullis, Technology Review) Lithium-sulfur batteries, which can potentially store several times more energy than lithium-ion batteries, have historically been too costly, unsafe, and unreliable to make commercially. But they're getting a fresh look now, due to some recent advances. Improvements to the design of these batteries have led the chemical giant BASF of Ludwigshafen, Germany, to team up with Sion Power, a company in Tucson, AZ, that has already developed prototype lithium-sulfur battery cells.

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The chemical giant BASF is also an active investor in nanotechnologies. The Investment theme at Nanotech Europe 2009 features André Moreira, Investment Manager at BASF Venture Capital.

The Energy theme at Nanotech Europe 2009 features other new energy storage technologies.