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Loop Energy validates increased H2 production with its eFlow PEM electrolyzers

Image for representation purposes only. Source: Loop Energy

Hydrogen fuel cell solutions provider Loop Energy has completed third-party validation of the use of its patented 'eFlow' technology in PEM electrolyzers. In partnership with Fraunhofer USA, testing was conducted by the German Fraunhofer Institute for Solar Energy Systems ISE, and has demonstrated a fuel cell architecture with trapezoid flow field design can enhance temperature uniformity. 

When incorporated into conventional PEM electrolysis cells, this bipolar plate architecture demonstrates it can increase hydrogen production, according to the manufacturer. Loop Energy is now seeking industry partners to develop a full-scale electrolyzer prototype for commercial validation. 

The company cites test results to claim that eFlow architecture creates a more stable and uniform operating environment in the PEM water electrolysis test cells compared to conventional flow fields with parallel channels, resulting in greater hydrogen production and improved efficiency. Enhanced uniform operating environment should have a beneficial impact on durability, Loop Energy adds. 

"Results from the validation process show that the new flow field technology has the potential to surpass typical levels of hydrogen production that we see in the industry today and supports green hydrogen production to become increasingly economically viable," said Fraunhofer ISE Head of Department Chemical Energy Storage, Dr. Tom Smolinka. 

"The difference we have seen from current electrolyzer performance with conventional parallel flow field is that the adapted design appears to create more uniform temperature distribution could make it an enabling technology for some of the advanced materials needed to really increase the economics of electrolyzers and green hydrogen", he added. 

Encouraged by the results, Loop Energy and Fraunhofer ISE are inviting expressions of interest from potential industry partners. Interested parties will partner with the two companies in designing and manufacturing an electrolyzer prototype to verify eFlow's benefits for producing hydrogen on a commercial scale, according to their press statement. 

"The completion of third-party validation is an important milestone for Loop Energy as we explore how eFlow can transform the hydrogen production sector," said Loop Energy President and CEO, Ben Nyland. "We're extremely pleased to partner with Fraunhofer ISE and draw on their long-lasting experience in cell and stack design for PEM water electrolysis. The results have been encouraging, and we're excited to begin the search for strategic partners to support us as we innovate electrolyzer technology."

Currently, Loop Energy's proprietary eFlow technology is applied in its fuel cell products to offer unmatched levels of fuel efficiency. Its tapering channel design enables eFlow to provide improved uniform current density and increases gas velocity to deliver superior thermal and water management. With the new discovery that eFlow can benefit hydrogen production efficiency, it expands the patented technology's potential use across the hydrogen energy vertical.

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