A-Cell – Redox Flow Battery Test Cell

FCP-A-01-001

From: $3 422.00

General flow battery & electrochemical flow cell (2.5cm x 2.5cm OR 5cm x 5cm) for any type of chemistry 

  • 2.5cm x 2.5cm OR 5cm x 5cm – other areas are available on request
  • Electrode thickness < 0.5mm-1 mm
  • Interdigitated flow field
  • Can be operated in full pH range – from strongly acidic to strongly alkaline (depending on gasket materials choices)

Graphite Flow Body for A-Cell (1/8") × 2

Graphite flow-body (replacement part) for the A-Cell Flow-battery cell, with integrated flow-field (2.5cm x 2.5cm OR 5cm x 5cm).

  • 1 piece per package (two needed per cell)
  • 2.5cm x 2.5cm OR 5cm x 5cm – other areas are available on request
  • Interdigitated flow field
  • Can be operated in full pH range – from strongly acidic to strongly alkaline
  • Comes with PFA Swagelok connectors (for 1/8" tubing)

Gold plated current collectors × 2

PTFE Cover Gaskets

We recommend our thin pack PTFE selection and potentially combined with a set of compressible cover gaskets.

Compressible Cover Gaskets

Generally VITON is recommended for acidic and EPDM for alkaline solutions. However, always check material for compatbility with your specific chemistry.

About the product

The A-cell was the first product of Redox-Flow.com and has been on the market for almost 10 years and is being used by +100 groups and companies around the world. The A-cell comes with interdigitated flow field and is intended for general redox flow battery research and development in particular thinner electrodes  <0.5mm-1 mm. Alternatively it can be used an electrochemical flow cell for test of membrane properties or similar. The A-cell comes with either 2.5cm x 2.5 cm OR 5cm x 5cm active area

The design has focused on ease of use and fast assembly/disassembly making it ideal for research applications. The cell consists of corrosion resistant dense graphite material with close to zero absorption of electrolyte. There is no contact between metal parts and electrolyte solutions. The interdigitated flow field in the cell is optimized for RFB applications with minimum internal resistance. For specialized flow fields or carbon felt electrodes and other active areas please contact us.

Some of the unique features of the A-cell are

  • The electrolyte is only in contact with flow block (graphite), spacers (PTFE, Viton or EPDM), O-ring (Viton/EPDM), bipolar plate, electrode and membrane.
  • Optimized for high performance and lowest internal resistance
  • Can be connected with Flow Through Electrode Holder for e.g. inline monitoring of pH, ORP, reference, conductivity or any other electrode.
  • Can be connected the Inline Pressure Unit for measurement of electrode hydraulic resistance
  • Signals from pressure sensors and electrodes can be recorded in AUX Unit, which combined form an extremely powerful tool for both optimization studies or flow battery chemistry development.
  • Can be converted into a A or X-cell by purchase of S-cell graphite flow body or X-cell PEEK flow body & current collectors. Combined the A, S and X-cells allows virtually testing of any type of electrochemical energy conversion technologies – Flow batteries, Alkaline Water Electrolysis, Anion exchange membrane water electrolysis, Zero Gap electrolysis, PEM water electrolysis, CO2 electrolysis, PEM/Alkaline fuel cells –  that can be operated to high temperatures and in the full pH range

 

GASKETS & ELECTRODE THICKNESS: Due to the many variations, cells are sold without gaskets that needs to be ordered individually (see gasket selections). The overall configuration and variation possibilities are shown in the image below – (Click on picture for higher resolution)

The A-cell is intended for thinner electrodes (< 0.5-1.0 mm), for thicker electrodes the S-cell is a better option.

The electrode area (either 2.5cm x 2.5cm OR 5cm x 5cm) of the flow-field area and the gaskets should match.  

The final compressed electrode thickness is the sum of the thicknesses of the Cover/Spacer gaskets, here several gaskets (and materials) and thicknesses can be combined. 

In our gaskets products we offer packs of different gasket thicknesses, and we recommend these as these will allow you to test virtually any electrode thickness and compression. For the A-cell the gaskets can be ordered here: Gaskets for A-Cell flow batttery cell.

  • Active Area: 2.5cm x 2.5cm or 5cm x 5cm
  • Flow Field Pattern: 1mm Interdigitated
  • Electrolyte only in contact with graphite body, fittings and gaskets. All made in corrosion resistant materials (from acidic to alkaline)
  • ø2 mm and ø4mm holes in each side of the graphite blocks for e.g.:
    • thermometers
    • banana plugs for measurement of potential on the graphite block.
  • 4 Alignment bars ensures exact cell alignment with every reassembly
  • 8 bolts for cross-tightening the cell

  • Materials
    • End Plates: Stainless steel (2 pc)
    • Flow Field: Graphite, impermeable (2 pc)
    • Current collectors: Gold plated cobber (2pc)
    • PFA Swagelok fittings for tight connecting to 1/8” tubing (4pc). 1/4″ or other fitting sizes on request
    • Gaskets: PTFE, VITON and EPDM (buy gaskets here)

Support & Inquiry

Do you have specific questions or would you like help in selection and configuration of our product:

A-Cell – Redox Flow Battery Test Cell

You are very welcome to contact us in the form here. We are ready to support you in selecting the best solutions for your R&D.

Always include as much information as you can about your project, what type of chemistry you are planning to use, what is the purpose of the equipment  you are interested in. That will make it much easier for us to guide you towards the best solution for your project. 

Your question and Inquiry

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