In order to realize the potential of beyond Li-ion batteries such as Li-S, Li-O2, Li metal etc batteries, the use of metallic Lithium as anode is essential. Nevertheless, the growth of Li dendrites accompanied with severe safety hazards hinder the practical application of Li metal anode. Another obstacle that hinders the practical application of Li metal anode is the formation of “dead Li” during cycles, which causes inevitable active Li loss. Hence, a large amount of inventory metallic Li is needed to prolong the cycle life of Li metal batteries. However, largely excessive Li in the anode is undoubtedly detrimental to the actual energy density of Li metal batteries. For Li metal batteries under practical conditions, low negative/positive ratio (N/P ratio), electrolyte/cathode ratio (E/C ratio) accompanied with high-voltage cathode are the pre-requisites. RISE will be focusing to solve these practical problem statements along with basic fundamental understandings. Along with this, deferent length and time-dependent fundamental characterization techniques based on spectroscopy, microscopy, diffraction techniques will be used. Especially, to detect metallic Li, RISE is establishing a dual beam microscopic facility with two cryo-stages.