These plates have multiple crucial functions. They evenly distribute reactant gases like hydrogen and oxygen across the electrodes and conduct electrons, enabling the electrochemical reactions that generate electricity. The design of the flow channels on the bipolar plates is vital as it determines key performance metrics such as energy efficiency, power density, and durability.
Photo Etched Bipolar Plates
Photochemical etching is a process that uses photosensitive coatings and ultraviolet light to create patterns on metal plates. The patterned coating protects the metal, while a chemical solution selectively removes the unprotected metal, leaving behind the desired shape.
Photochemical etching can flexibly create any geometric flow channels on metal plates. The flow channel plates produced by photochemical etching feature high precision, burr – free surfaces, and no stress. They are suitable for the energy field, meeting the application requirements of high volume power density, long lifespan, and stable performance.
When using photochemical etching to process metal bipolar plates, there is no need for high – cost mold fees or time – consuming mold – making cycles. Whether in the initial prototype testing stage or the mature mass – production stage, photochemical etching is an economical and efficient processing method.
High Precision Photochemical Etching
Frequently Asked Questions
Find answers to commonly asked questions about our capability
What is the MIN/MAX thickness you can manufacture?
The thickness range is from 0.02 – 3.0MM
What is the MAX depth of the channels you made?
The MAX depth we made is 2.0MM
Why choose Hysen?
Hysen has proven and advanced techniques in photo-chemical etching and diffusion bonding fields. We can offer a most cost-effective solution to our partners.
Benefits of Photo Etched Metallic Bipolar Plates
Burr-Free
Unlike traditional mechanical processing, etching does not produce burrs, ensuring that the component surfaces are smooth and flat, thereby enhancing the quality and performance of the components.
Long Lifespan
Due to the high precision, smooth surfaces, and stress-free nature of etched components, they generally have a longer lifespan.
Flexibility in Design/Customization:
Etching processing allows for the realization of complex and intricate designs, greatly enhancing the flexibility in component design and customization, and enabling quick responses to specific customer requirements.
No High Mold Costs
Etching processing does not require the creation of expensive molds, significantly reducing initial investment costs. This makes it particularly suitable for small batch production and rapid prototyping.
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