Washington University in St. Louis scientists have developed a novel material that supercharges innovation in electrostatic energy storage. The material is built from artificial heterostructures made of freestanding 2D and 3D membranes that have an energy density up to 19 times higher than commercially available capacitors. Electrostatic capacitors play a crucial role in modern electronics.
“Initially, we weren’t focused on energy storage, but during our exploration of material properties, we found a new physical phenomenon that we realized could be applied to energy storage, and that was both very interesting and potentially much more useful.” The 2D/3D/2D heterostructures are finely crafted to sit in the sweet spot between conductivity and nonconductivity where semiconducting materials have optimal electric properties for energy storage.
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