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PEM Electrolysis Stacks

PEM Electrolysis Stacks - High-Pressure Oxygen Generating Electrolyzer

Giner, Inc.

  • High-differential-pressure PEM electrolyzer stack
  • Oxygen pressure up to 3,600 psi without mechanical compression
  • Hydrogen discharged at close to ambient pressure
  • Liquid cathode-feed configuration
  • Non-saturated oxygen product stream
  • Only ppm levels of oxygen reported in the product hydrogen stream
  • More than 10,000 cumulative prototype operating hours
  • 50-cell stack successfully operated at 2,000 psi

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Description Vendor

Giner Labs High-Pressure Oxygen Generating Electrolyzer is a PEM electrolyzer stack developed for high-differential-pressure water electrolysis in advanced life-support applications. The stack is designed to produce oxygen at pressures up to 3,600 psi without mechanical compression while discharging hydrogen at close to ambient pressure. A liquid cathode-feed configuration produces oxygen in a non-saturated state to simplify downstream processing, and Giner reports only ppm levels of oxygen in the product hydrogen stream during stable high-differential-pressure operation. More than 10,000 hours of cumulative operation have been demonstrated on two prototype stacks, and a 50-cell stack has been successfully operated at 2,000 psi.

Use Cases

  • Advanced life-support oxygen generation
  • Extravehicular Mobility Unit oxygen recharge
  • Spacecraft PEM water electrolysis
  • High-differential-pressure oxygen and hydrogen generation

Capabilities

  • Electrolyzes water into oxygen and hydrogen
  • Generates high-pressure oxygen without a mechanical compressor
  • Maintains hydrogen output near ambient pressure
  • Supports stable high differential-pressure stack operation
  • Reduces downstream oxygen-processing requirements through non-saturated oxygen output
Giner, Inc. Giner, Inc., operating under the Giner Labs brand, designs and manufactures membrane electrode assemblies for PEM fuel cell and electrolyzer applications. Its MEA portfolio includes 3-layer, 4-layer, 5-layer, and 7-layer configurations, manufactured at small and large scales. Giner supplies MEAs according to standard or custom specifications for both commercial products and R&D applications. The company also provides MEA development and characterization capabilities for fuel cell and electrolyzer technologies.
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