General Redox Flow Battery Testing Cell with Serpentine Flow Channels, CGRFBTCSFC

A Redox Flow Battery (RFB) testing cell is the core electrochemical component of a flow battery system where the conversion between electrical and chemical energy occurs. Unlike traditional batteries, the energy is stored in liquid electrolytes (anolyte and catholyte) which are pumped through this cell during operation.

A standard lab-scale RFB cell is usually a "sandwich" stack held together by end-plates.

(1) End Plates: Usually made of heavy-duty stainless steel or aluminum. They provide the mechanical pressure required to seal the cell and ensure low contact resistance.

(2) Current Collectors: Often gold-plated or high-purity copper plates that transfer electrons from the internal electrodes to the external circuit.

(3) Bipolar Plates (Flow Fields): Typically made of high-density graphite or graphite-polymer composites. These plates have machined channels (e.g., serpentine, parallel, or interdigitated) to distribute the liquid electrolyte evenly across the electrode surface.

(4) Porous Electrodes: Usually carbon felt or graphite felt. These provide a high surface area for the redox reactions to occur as the liquid flows through them.

(5) Ion-Exchange Membrane: The "heart" of the cell (often Nafion or similar PFSAs). It separates the two electrolytes to prevent mixing while allowing specific ions (like H+ or Cl-) to pass through to maintain charge balance.

(6) Gaskets: Made of chemically resistant materials like PTFE (Teflon) or Viton to prevent electrolyte leakage.

Part Number	CGRFBTCSFC (C-GRFB-TCSFC)
Structure/Components	End Plates: HDPE material Current Collector: Graphite plate with flow channels Electrode: Graphite felt (T=3 mm) Electrode Gasket: PTFE Membrane Frame: Silicone Tubing Connection: Barbed hose fitting  Max. Cell Voltage: 1.5-1.7 V
Cell Sizes	Default effective area is 2.0 cm * 2.0 cm (4.0 cm2)  Other types of active areas, such as (1.6cm * 1.6cm) (3.2cm * 3.2cm), (5 cm * 5cm) are also available upon request.   Cell size: W60×H70 mm
Flow Channels	Standard flow channel is Serpentine                 Other flow channel types: such as interdigital, parallel serpentine are also available upon request.
Assembling Diagram
Complete Testing System (Optional)	The complete testing system with split cell, two peristaltic pumps, two bottles (100 mL), and connecting tubing (I.D. 2mm, O.D. 4mm), as well as a supporting stack, is available upon request.
Application Field	All-Vanadium Redox Flow Battery Iron-Chromium Redox Flow Battery
Note	The cell components should be thoroughly cleaned and dried after use.