In-situ/Operando Raman Battery Test Cell (3-electrode, compact titanium split cell) – REC 11

Three-electrode operando Raman cell for decoupled potential tracking

The REC 11 In-situ/Operando Raman Battery Test Cell (3-electrode) extends operando Raman battery testing by adding a reference electrode connection, allowing researchers to monitor the working electrode potential independently while collecting Raman spectra during cycling. This is valuable for mechanistic studies where separating cathode/anode polarisation, interphase growth, or reaction onset potentials is essential.

Working principle

Raman spectra are collected through an Ø8 mm optical window positioned close to the working electrode (<2 mm distance). The cell compresses a layered battery stack, with cathode and anode separated by a user-supplied membrane/separator, while a cycler/potentiostat drives the electrochemical protocol. Raman and electrochemical data are then correlated to link structural/chemical evolution with performance.

Key features and specifications

• High purity titanium body for robustness in common battery electrolytes
• Cell body size: 50 × 50 × 20 mm
• Optical window: Ø8 mm aperture; WE-to-window distance <2 mm
• O-ring sealing + screw tightening for consistent, repeatable assembly
• Spring-loaded stack compression to adjust load and reduce contact instability
• Quick disassembly for post-mortem inspection without damaging the electrode stack
  
  

Typical applications

• Potential-resolved operando Raman studies (cathodes, anodes, conversion materials)
• SEI/CEI growth tracking vs electrode potential
• Additive and electrolyte formulation screening
• Degradation pathways and failure-mode diagnostics
  
  

Why ScienceGears

ScienceGears provides local support for selecting the right potentiostat, battery cycler, and Raman-compatible in-situ/operando cell for battery research teams across Australia and New Zealand.