Advent Technologies Announces Breakthroughs in Membrane Electrode Assembly Technology

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LIVERMORE, Calif., October 17, 2024--(BUSINESS WIRE)--Advent Technologies Holdings, Inc. (NASDAQ: ADN) ("Advent "or the "Company"), an innovation-driven leader in the fuel cell and hydrogen technology space, is pleased to announce significant performance breakthroughs for its Membrane Electrode Assembly ("Advent MEA G2") technology. The Advent MEA G2 technology has already been provided for testing to select strategic partners, in the automotive and aerospace industries. It is being developed within the framework of L'Innovator, the Company's joint development program with the U.S. Department of Energy's Los Alamos National Laboratory (LANL), Brookhaven National Laboratory (BNL), and National Renewable Energy Laboratory (NREL).

HT-PEM fuel cell technology enables the use of green eFuels (eMethanol), renewable natural gas, or hydrogen on board. Furthermore, the HT-PEM fuel cells are highly efficient in terms of thermal management and highly resilient under extreme environmental conditions. The problem with the legacy HT-PEM MEAs was that they'd exhibit low power density and low lifetime compared to LT-PEM fuel cells. Advent has been developing the G2 MEA to overcome these problems.

The MEA developed with LANL technology is now in its second generation ("Advent MEA G2") and has achieved the following results vs. state-of-the-art "Legacy MEAs":

1. 2.5x Power Density vs. Legacy MEAs

Advent MEA G2 operates ideally at 160oC with nominal power produced at 0.35W/cm2 (0.58V@0.60A) vs. 0.14W/cm2 for the legacy MEAs. The Advent MEA G2 shows further potential for power generation when operating under pressure (1bar-2bar). Advent targets to achieve a performance of 0.7W/cm2 in the G3 version of the MEA with the target of 0.7V@1A with pressure.

The power density of Advent MEA G2 is still lower than LT-PEM MEAs, but the advantages of using liquid fuels/eFuels (methanol/eMethanol) on-board, not carrying compressed hydrogen, and the elimination of water management and complex thermal management components, results in a simpler system. The expectation is that the HT-PEM fuel cells developed with Advent MEA will be on par with LT-PEM in cost and weight while addressing the significant disadvantages of LT-PEM technology. Specific stationary, portable, marine and off-grid power applications are ideal for use with the Advent MEA G2.

"The off-grid, portable power and marine sectors need a liquid green fuel like eMethanol," says Dr. Chris Kaskavelis, Advent's Chief Strategy Officer. "It is highly inefficient to decarbonize these sectors with compressed hydrogen. We see many applications in off-grid environments, buildings, and marine where hydrogen would be impossible to deliver for financial or safety reasons. Using eMethanol (an excellent liquid green hydrogen carrier) allows the HT-PEM fuel cell to break the vicious circle. We can decarbonize these sectors with green hydrogen without investing in prohibitively expensive hydrogen transportation, dispensing, and liquefaction infrastructure. The benefits are significant for the mobility sector as well. With the new Advent MEAs, we envision eFuel-based HEVs (hybrid E.V.s with HT-PEM fuel cells) that are entirely green, using small batteries and achieving long-range, with the optionality of charging vs refilling. We can refill with eMethanol, a green net-zero hydrogen carrier, at any existing fuel station and reuse the existing liquid fuel transportation and storage infrastructure. We are in technology assessments with some of the world's largest automotive manufacturers and are eager to move to joint development programs in 2025."