This product is developed for coin cell battery assembly, serving as a precision spacer designed to maintain consistent electrode pressure and sealing integrity in research-grade button cells. Manufactured from 316 stainless steel, it offers excellent corrosion resistance and mechanical stability, essential for reliable electrochemical testing. The spacer features a diameter of 16.2 mm with a thickness of 0.8 mm, a common configuration for standard CR2032-type cells. To minimize contamination risks, each component is pre-cleaned with professional solvents prior to shipment and can be used directly without additional washing—an important practical advantage for laboratory workflows. Commonly applied in battery material evaluation, electrolyte studies, and electrode performance characterization, this spacer helps ensure reproducible cell assembly and experimental accuracy.