Novel Lithium-Ion Conducting Gels with a Tailor-Made Concentration Gradient and Their Use in Secondary Lithium Metal Batteries

Novel ion-conducting polymer gelswith a tailor-made composition gradient are presented. Such gels can be used in secondary lithium metal batteries to improve the cycling efficiency. The gradient is created by a UV absorber, which causes the polymerization to proceed at different rates across the sample. The morphology of a gel with such a gradient is shown in the Figure.