Episode 7: Nanotwinned copper foil enables “zero excess” Li-metal batteries

In this podcast episode, MRS Bulletin’s Laura Leay interviews Dominic Bresser from the Helmholtz Institute Ulm and the Karlsruhe Institute of Technology in Germany about the suitability of a nanotwinned copper foil as a current collector for the negative electrode in“zero excess” lithium−metal batteries. The nanotwinned copper foil has an essentially pure, single orientation and dense twin boundaries. Bresser’s research group found that lithium deposits more densely and much more homogenously on this nanotwinned copper foil than on commercial foils. This work was published in a recent issue of ACS Applied Energy Materials.