AEM Electrolysis Research Cell / Short Stack – HXS-0

  • Research and evaluation cell for AEM water electrolysis
  • Single-cell or custom short-stack configuration
  • Active area up to 25 cm², set by the gasket
  • Compatible with HydroXpand HXP-an/HXP-ca and third-party MEAs
  • 0.3 M KOH at 60 °C reference operating condition
  • SUS316L end plates, pure-nickel bipolar plate, PTFE gasket
  • 1/4-inch double-ferrule fluid connections
  • Custom flow fields and builds available

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HXS-0 | AEM Electrolysis Research Cell / Short Stack

  • A configurable research platform for screening AEMWE electrodes, membranes and MEAs before moving to stack scale.
  • HXS-0 gives laboratories and development teams direct access to the variables that matter: active area, cell count, flow field, ports and MEA choice. HydroXpand electrodes and third-party MEAs can both be used.

At a glance

Format Single cell or custom short stack
Active area Up to 25 cm², set by gasket
Reference condition 0.3 M KOH at 60 °C
MEA access HydroXpand and third-party MEAs
Build Customisable

Why HXS-0

  • Open research platform: compare catalysts, electrodes, membranes and MEAs in the same hardware.
  • Configurable geometry: active area and cell count are set for the intended experiment.
  • Custom fluidics: single-serpentine flow fields, ports and fittings can be adapted to the test rig.
  • Durable materials: SUS316L end plates, pure-nickel bipolar plates and PTFE gaskets.

Choose the right HydroXpand platform

HXS-0 Cell-scale material and MEA evaluation Up to 25 cm²
HXS-2 Reusable 2 kW stack for R&D and small pilots 0.5 Nm³/h
HXS-30 Pilot stack under validation 7.5 Nm³/h target
HXB-V1 Integrated 2 kW system with BOP and controls 0.5 Nm³/h

Typical project scenarios

  • University lab comparing candidate membranes under a common cell geometry
  • Catalyst developer benchmarking anode and cathode samples before scale-up
  • OEM team validating a custom flow field, port layout or MEA format

Include in your RFQ

  • Required active area and cell count
  • MEA and electrode dimensions
  • Flow-field and fluid-port requirements
  • Operating temperature, pressure and electrolyte
  • Required quantity and documentation

Data note: the performance graphic is an illustrative single-cell dataset, not a guaranteed performance claim. Final configuration and acceptance criteria are agreed per project.

Contact us

  • Interested? Please contact HydroXpand by filling in the RFQ or Inquiry form.
HydroXpand Inc.

HydroXpand Inc. is a South Korean deep-tech company that develops and manufactures Anion Exchange Membrane Water Electrolysis (AEMWE) electrodes, cells, stacks, and integrated systems. Founded in 2023 by three KAIST PhDs, we work across catalysts, electrodes, stack architecture, balance-of-plant, and control software to reduce both upfront and lifecycle costs for clean hydrogen production.

Our current portfolio includes iridium-free anodes, low-PGM cathodes, single-cell and short-stack hardware, the HXS-2 2 kW stack, and the HXB-V1 2 kW integrated system. The HXS-30 30 kW pilot stack is under development and validation. HydroXpand products have been supplied to more than 50 customers across 10 countries, and our technology portfolio includes nine patents. The HXB-V1 is supported by a CE Declaration of Conformity.

Our stack architecture is designed so that the durable hardware can be reused while the MEA is replaced, reducing maintenance cost and material waste. Customers can start with laboratory or pilot-scale equipment today and expand through a modular development roadmap toward larger industrial systems.

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