2LE 12 All nanomat batteries: A new cell architecture toward ultrahigh energy density and mechanical flexibility
The forthcoming ubiquitous electronics era, which will involve widespread use of flexible electronic devices, IoTs and electric vehicles, is in urgent need of advanced power sources with reliable/sustainable electrochemical performance and mechanical flexibility. Here, we demonstrate a new class of all nanomat (Si anode/Al 2 O 3 separator/OLO cathode) Li ion battery (LIB) full cells based on 1D building elements interweaved heteronanomat skeletons as a simple and versatile cell strategy. The well tailored heteronanomat cell architecture allows for the formation of 3D bicontinuous ion/electron transport pathways and the elimination of metallic foil current collectors, leading to exceptional improvements in the energy density and mechanical deformability that lie far beyond those achievable with conventional LIB technologies.