Our platform is designed for investigating the formation of the CEI, which is influenced significantly by the type of active material, the inactive components of the composite electrode, and the electrolyte formulation . Crucially, it eliminates the need for cell disassembly for ex-situ measurements, thus minimizing the risk of mechanical alterations. To demonstrate the reliability and reproducibility of our proposed framework, we investigate the evolution of CEI in lithium iron phosphate (LFP), a well-studied cathode material used in commercial batteries . We used 1 M LiPF 6 solution in a mixture of ethylene carbonate (EC):ethyl methyl carbonate (EMC) in a 3 : 7 weight ratio as the electrolyte (E-lyte, Germany). The entire setup was maintained in a nitrogen-filled glovebox. It is important to note that electrolyte evaporation can occur due to the open-cell-setup. This poses challenges for long-term cycling tests, however, it offers distinct advantages for a variety of short-term measurements, which would otherwise require extensive assembly, disassembly, and electrode post-treatment. We designed our high-throughput sequential experimentation protocol using cyclic voltammetry (CV) tests, which are stopped at different potentials during the second cycle to analyze features related to redox reactions, and repeated the procedure two times. Our novel approach to cathode electrode preparation involved screen-printing onto the substrate. This method minimizes material usage and precisely defines the active material area. For each experiment, the SDC head is positioned at the predefined measurement spot, where it dispenses a droplet of electrolyte, and ensures electrical connection before performing CV. Upon completing a series of experiments, it is necessary to remove the excess LiPF 6 salt residue, a byproduct of electrolyte evaporation, from the electrodes. This is achieved by depositing a droplet of propylene carbonate (PC) on each measurement spot, allowing it to soak for three minutes to dissolve the salt, and then aspirating it using the SDC head. This cleaning process is repeated three times. Once the cleaned sampled are dried, they are transferred for ex-situ XPS analysis to characterize the synthesized CEI at different potentials and identify the formation stages of its components.