CNB-12-RM-2E
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.