This white paper provides a comprehensive, step-by-step guide for researchers and engineers aiming to build and evaluate lab-scale solid-state batteries (SSBs). Recognizing the lack of standardization in the field, the authors share practical knowledge, best practices, and common pitfalls gathered from years of academic and industrial experience. The document begins by outlining the unique challenges of SSB chemistry, including the critical roles of pressure, moisture sensitivity, and interface engineering.

It then explores cell casing selection, assembly protocols, and strategies for ensuring precision in component drying, stack compression, and material homogeneity. Detailed guidance is provided for assembling full cells, including proper sequencing, handling techniques, and pressure application during testing. The guide also highlights typical assembly errors and their impact on performance, offering troubleshooting advice and a cause-effect matrix to assist in diagnosing issues.

A dedicated section on electrochemical testing methodologies—including impedance spectroscopy, charge/discharge cycling, reference electrodes, and scalability assessments—equips readers with the tools to interpret results accurately and ensure reproducibility. Overall, this practical guide serves as a valuable resource for advancing the quality, reliability, and comparability of SSB research.

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