In-Situ Raman Battery Test Cell Model: RM-2E

RM-2E In-Situ Raman Battery Test Cell A sealed two-electrode battery test cell for in-situ Raman monitoring during electrochemical cycling. Product Overview The RM-2E is a sealed two-electrode battery test cell integrating in-situ Raman measurement with electrochemical cycling. Its short sample-to-window distance facilitates Raman signal collection, while spring-loaded compression enables adjustable stack loading and stable electrode contact. Designed for battery materials research, it supports real-time investigation of structural evolution, redox conversion, and interfacial changes during charge/discharge testing. Key Features • In-situ Raman Monitoring Enables Raman characterization of electrode materials during battery charge/discharge operation • Adjustable Spring Loading Allows the applied load to be adjusted for comparative evaluation under different compression conditions • Glovebox-Compatible Sealing The cell can be assembled in a glovebox and subsequently operated under ambient conditions with O-ring sealing Technical Specifications Electrode configuration Two-electrode system Sample-to-window distance < 2 mm Optical window diameter Ø20 mm Effective optical window diameter Ø12 mm Optical window material Sapphire Cell body material Ti Insulation material PEEK Current collector tab Gold-plated copper Cell body dimensions Ø70 mm × H20 mm Instrument Compatibility • Raman System Compatibility Compatible with commercial Raman microscope systems, including Renishaw (inVia) and HORIBA (LabRAM Soleil Nano) • Electrochemical Testing Compatibility Compatible with commercial electrochemical workstations, including CH Instruments (CHI660E), and battery testing systems, including NEWARE (CT-4008T) Published Application Example In-situ Raman Tracking of Four-Electron Iodine Conversion The cell used in this study, supplied by Beyond Battery under product code RM-2E, was coupled with a Renishaw inVia Raman microscope (532 nm) and CHI660E workstation to investigate four-electron conversion in aqueous Zn–I₂ batteries. During cycling from 0.6 to 1.9 V, Raman spectra tracked I₃⁻, I₅⁻, I₂, and ICl₂⁻, confirming reversible iodine conversion and HMTA-mediated suppression of polyiodide shuttling and I⁺ hydrolysis. Demonstrated RM-2E Capabilities Simultaneous Raman acquisition and galvanostatic cycling Potential-resolved tracking of multiple iodine species Compatibility with two-electrode aqueous battery configurations Additional Published Applications Hu, Y. et al. Energy Environ. Sci. 2026, 19, 1551–1564. Hao, J. et al. Sci. Adv. 2026, 12, eaed8075.