On-Site High-Purity Hydrogen Generation: Application of ATEH Series Hydrogen Generators in Hydrogen Fuel Cell R&D and Testing

Introduction

In sectors such as the low-altitude economy, new energy vehicles, and distributed power generation, hydrogen fuel cells—particularly Proton Exchange Membrane Fuel Cells (PEMFCs)—are experiencing explosive growth. As devices that directly convert chemical energy into electrical energy, the R&D, quality control, and lifetime testing of fuel cell stacks impose exceptionally stringent requirements on the hydrogen source. Traditional high-pressure hydrogen cylinders have increasingly become a bottleneck for laboratories and testing lines due to cumbersome transportation, strict safety approvals, and fluctuating gas purity.

The ATEH Series Hydrogen Generators, introduced by ATARICO (ATEH), utilize mature water electrolysis technology. Offering high purity, high pressure stability, and on-site, on-demand generation, this series provides a safe and efficient gas supply solution for the electrochemical performance testing of hydrogen fuel cells.

I. Core Demands of Fuel Cell Testing on Hydrogen Sources

In fuel cell laboratories—such as those conducting polarization curve testing, catalyst poisoning research, and membrane electrode assembly (MEA) durability assessments—gas quality directly dictates the accuracy of test data:

Purity Sensitivity: PEMFC catalysts (such as platinum, Pt) are highly susceptible to poisoning by trace impurities (e.g., carbon monoxide CO, sulfides, and trace moisture), which can cause an irreversible, catastrophic drop in cell performance. Testing must utilize ultra-pure hydrogen of 5N (99.999%) grade or higher.

Pressure Stability: A precise pressure balance is required between the anode and cathode (hydrogen side vs. oxygen/air side) of a fuel cell. Severe fluctuations in hydrogen supply pressure can cause mechanical damage to the proton exchange membrane or lead to flow channel flooding, thereby distorting test results.

II. Core Technical Advantages of ATEH Series Hydrogen Generators

The ATEH series demonstrates excellent technical compatibility when integrated into fuel cell testing workflows:

1. 99.999% Ultra-High Purity to Prevent Catalyst Poisoning

The ATEH-360, ATEH-520, and ATEH-2000 models all deliver a stable hydrogen output with a purity of 99.999%. Using deionized water as the raw material for electrolysis, the equipment features highly efficient internal separation and purification systems that tightly control trace moisture and impurity components. This provides a reliable reference gas source for fuel cell testing, eliminates catalyst poisoning interferences caused by external gas impurities, and ensures that test data accurately reflect the true performance of the Membrane Electrode Assembly (MEA).

2. < 0.001 MPa Pressure Stability Ensuring Uniform Flow Fields

In fuel cell reactions, even minor pressure fluctuations of the reactant gas can affect the uniformity of current density. The entire ATEH series achieves a pressure stability of < 0.001 MPa (with a maximum output pressure of up to 0.45 MPa). This ultra-high pressure control precision ensures a constant hydrogen flow rate and pressure at the fuel cell anode, significantly improving the repeatability and signal-to-noise ratio of core electrochemical data tests, such as polarization curves (I-V Curves).

3. Three Flow Rate Configurations for Flexible Stack Power Matching

To meet different scales of testing demands, the ATEH series offers a stepped selection of flow rates:

ATEH-360 / 520 (360–520 mL/min): Ideal for single-cell research, Electrochemical Active Surface Area (ECSA) testing, and micro-fuel cell development.

ATEH-2000 (2000 mL/min): Suitable for short-stack assembly testing, Accelerated Stress Testing (AST) for MEA lifetime evaluation, and other high-flow, continuous-consumption scenarios.

4. Intelligent Control and 24-Hour Continuous Operation

Highly reliable fuel cell lifetime testing often requires hundreds or even thousands of hours of continuous operation. The ATEH series features automatic water level control and an intelligent control system (equipped with low-water alarms and over-pressure protection). The system automatically shuts down to protect the electrolysis cell if water is depleted, and it supports 24-hour continuous, safe, and stable operation. This completely eliminates the risk of experiment interruption caused by the frequent replacement of gas cylinders mid-test.

III. Economic and Safety Benefits of On-Site Lab Hydrogen Generation

Beyond matching technical parameters, on-site generator production offers overwhelming advantages over traditional gas cylinders in terms of laboratory management:

Elimination of High-Pressure Hazards: The hydrogen generator operates on an "on-demand" basis, maintaining minimal gas storage inside the device with an operating pressure between 0 and 0.45 MPa. Compared to 15 MPa high-pressure hydrogen cylinders, this low-pressure operation completely removes explosion risks and relieves the lab of heavy fire-safety approval burdens.

Low-Carbon and Low Lifecycle Costs: The equipment features low power consumption (taking the ATEH-360 as an example, the power consumption is only 0.3 kW) and uses only deionized water, resulting in zero carbon emissions. Over the long term, it eliminates the hidden costs of frequent cylinder rental, transportation, and safety inspections.

Conclusion

The precise R&D and rigorous testing of hydrogen fuel cells depend heavily on high-quality, high-stability infrastructure. With its 99.999% purity, < 0.001 MPa pressure stability, and intelligent on-site safety generation mode, the ATARICO ATEH Series Hydrogen Generator accurately resolves the three major pain points of fuel cell testing: impure gas sources, unstable pressure, and cylinder hazards. It serves as an indispensable gas supply asset for driving low-altitude economy propulsion systems and moving new energy battery R&D laboratories toward standardized, highly efficient operations.