To satisfy the large market demands for smaller and lighter rechargeable batteries, high-capacity metallic Li has been investigated to replace low specific capacity graphite as a next generation anode material enabling higher energy density in next-generation rechargeable Li metal batteries (LMBs), or all solid-state batteries (ASSBs) with Li metal as the anode.  However, aggressive Li metal chemistry makes it challenging to serve as an anode material in LMB and/or ASSBs.  The main R&D direction to address these challenges aims to achieve uniform Li deposition during Li plating and stripping to protect the lithium metal anode from dendrite formation.  More recently, attention has focused on the design of Li anodes and current collectors, to inhibit the growth of Li dendrites.  Lowering the local current density along the anode surface with a high surface area current, or through the addition of anode host materials or through the use of porous lithium-metal anodes could potentially prevent the onset of dendrite nuclei and reduce the speed of dendrite growth.  However, many of these designs are often accompanied with increased internal resistance and the loss of active materials. The complicated manufacturing process of these nanostructured materials also restricts their practical application.