In Situ Raman Pressure Battery Test Cell (Two-Electrode System) Model: RM-P2E

Description

Product Overview

The RM-P2E is a sealed two-electrode battery test cell integrating in situ Raman measurement with electrochemical cycling under controlled pressure or vacuum conditions. Its sapphire optical window and short sample-to-window distance facilitate Raman signal collection, while the titanium cell body, PEEK insulation, and O-ring sealing provide chemical resistance and reliable airtightness. Designed for battery materials research, it supports real-time monitoring of structural and interfacial changes during charge/discharge testing at pressures up to 1 MPa. Vacuum operation is supported by replacing the pressure gauge with a compatible vacuum gauge.

Key Features

• In Situ Raman Monitoring: Enables real-time Raman characterization of electrode materials during battery charge/discharge operation.
• Pressure/Vacuum Operation: Supports electrochemical cycling under controlled pressure or vacuum conditions with interchangeable gauges.
• Glovebox-Compatible Sealing: Provides reliable airtight sealing for glovebox assembly and subsequent operation under ambient conditions.

Technical Specifications

Electrode configuration	Two-electrode system
Sample-to-window distance	< 2 mm
Optical window diameter	Ø20 mm
Effective optical window diameter	Ø12 mm
Maximum pressure	1 MPa
Optical window material	Sapphire
Cell body material	Ti
Insulation material	PEEK
Current collector tab	Gold-plated copper
Cell body dimensions	Ø70 mm × H30 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).

Related Published Application

In Situ Raman Tracking of Stepwise Polyiodide Conversion: The cell used in this study, supplied by Beyond Battery under product code RM-2E, was coupled with a Renishaw inVia Raman microscope using 532 nm excitation and a CHI660E workstation to investigate KB–I₂ cathodes in aqueous Zn–I₂ batteries. During galvanostatic cycling, in situ Raman spectra tracked I₃⁻ and I₅⁻ intermediates, revealing that ectoine promoted a stepwise I₅⁻ → I₃⁻ → I⁻ conversion pathway while suppressing polyiodide shuttling.

Reproduced from Hu, Y. et al. Energy Environ. Sci. 2026, 19, 1551–1564. CC BY 4.0.

Capabilities Relevant to the RM-P2E

• Simultaneous Raman acquisition and galvanostatic cycling.
• Real-time differentiation of I₃⁻ and I₅⁻ intermediates.
• Electrolyte-dependent tracking of iodine conversion pathways.

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 base model (RM-2E) of the RM-P2E; the RM-P2E adds pressure monitoring and optional vacuum operation, but neither controlled-pressure nor vacuum Raman measurements were performed in this study.