In Situ Raman Battery Test Cell (Two-Electrode System) Model: RM-2E

Description

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	Ø 20 mm
Effective optical window diameter	Ø 12 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.

 

Reproduced from Zhang, S.-J. et al. J. Am. Chem. Soc. 2025, 147, 16350–16361. CC BY 4.0.

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.

Product Identification Note: RM‑2E is the Beyond Battery product code for the same cell reported in the cited
publications. The original articles use a different product designation. This study used the 2025 version of the RM‑2E; the current model may differ in design and specifications.