In-Situ Raman Battery Test Cell Model: RM-3E

RM-3E In-Situ Raman Battery Test Cell A sealed three-electrode battery test cell with a lithium-wire reference electrode for in-situ Raman monitoring. Product Overview The RM-3E is a sealed three-electrode battery test cell integrating in-situ Raman measurement with electrochemical cycling. A spring-loaded lithium-wire reference electrode is connected to an independent middle current collector, forming a dedicated reference-electrode circuit for three-electrode testing. Its layered current-collector structure, adjustable spring compression, and O-ring sealing support stable electrode contact, reproducible assembly, and in-situ investigation of battery materials during charge/discharge cycling. Key Features • Lithium-Wire Reference Electrode Spring-loaded contact connects the lithium wire to the middle current collector, establishing the reference-electrode circuit • 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 Three-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 × H24 mm Reference electrode Lithium wire 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 Bio-Logic (VSP-3E), and battery testing systems, including LAND (CT3004A) Published Application Example In-situ Raman Tracking of Sodium Storage in Hard Carbon The cell used in this study, supplied by Beyond Battery under product code RM-3E, was coupled with a HORIBA LabRAM Soleil Nano confocal Raman spectrometer to compare pristine T2 and Bi/N-modified T2-BiN hard-carbon anodes during sodium-ion battery cycling. In-situ spectra revealed a pronounced G-band redshift and reduced D-band intensity for T2-BiN, indicating enhanced Na⁺ intercalation-induced C–C bond strain and increased Na⁺ adsorption at defect sites. Demonstrated RM-3E Capabilities In-situ Raman monitoring during battery charge/discharge cycling Comparative tracking of D- and G-band evolution Identification of Na⁺ intercalation and defect-site adsorption Application Studies Additional application studies are underway.