Advent Technologies Powers the Future of Flight with Next-Generation Fuel Cell Technology
Advent Technologies (NASDAQ: ADN) announced progress in aviation electrification using its high-temperature proton exchange membrane fuel cells (HT-PEM FCs) and the proprietary Ion Pair™ membrane electrode assembly (MEA), developed with Los Alamos National Laboratory and exclusively licensed for aviation applications.
Advent said its HT-PEM MEAs operate at higher temperatures to enable smaller, lighter radiators, improving thermal management, range, and performance for electric aircraft. The company cited collaboration with Stralis Aircraft and engagement across >100 companies working on fixed-wing, eVTOL, and flying car platforms. The release contrasts lithium-ion energy density (~0.3 kWh/kg) with liquid hydrogen (~33.3 kWh/kg) to highlight suitability for long-range flight.
Advent Technologies (NASDAQ: ADN) ha annunciato progressi nell'elettrificazione dell'aviazione utilizzando le sue celle a combustibile a membrana a scambio protonico ad alta temperatura (HT-PEM FCs) e l'assemblaggio elettrodo di membrana proprietario Ion Pair™, sviluppato con Los Alamos National Laboratory e con licenza esclusiva per applicazioni aeronautiche.
Advent ha dichiarato che i suoi HT-PEM MEAs operano a temperature più elevate per permettere radiatori più piccoli e leggeri, migliorando la gestione termica, l'autonomia e le prestazioni degli aeromobili elettrici. L'azienda ha citato la collaborazione con Stralis Aircraft e l'impegno con oltre 100 aziende attive su piattaforme a ala fissa, eVTOL e auto volanti. Il comunicato mette in contrasto la densità energetica della lithium-ion (~0.3 kWh/kg) con l'idrogeno liquido (~33.3 kWh/kg) per evidenziare l'idoneità per voli a lunga percorrenza.
Advent Technologies (NASDAQ: ADN) anunció avances en la electrificación de la aviación utilizando sus pilas de combustible de membrana de intercambio protónico a alta temperatura (HT-PEM FCs) y el ensamblaje de electrodos de membrana propietario Ion Pair™, desarrollado con el Los Alamos National Laboratory y licenciado exclusivamente para aplicaciones aeronáuticas.
Advent dijo que sus HT-PEM MEAs operan a temperaturas más altas para permitir radiadores más pequeños y ligeros, mejorando la gestión térmica, la autonomía y el rendimiento de aeronaves eléctricas. La empresa citó la colaboración con Stralis Aircraft y la participación en más de 100 compañías que trabajan en plataformas de ala fija, eVTOL y autos voladores. El comunicado contrasta la densidad de energía de litio-ion (~0.3 kWh/kg) con el hidrógeno líquido (~33.3 kWh/kg) para resaltar la idoneidad para vuelos de larga distancia.
Advent Technologies (NASDAQ: ADN)는 고온 프로톤 교환막 연료전지(HT-PEM FCs)와 독점적인 Ion Pair™ 멤브레인 전극 어셈블리(MEA)를 활용한 항공 전력화의 진전을 발표했으며, 이 MEA는 로스알라모스 국립연구소와 함께 개발되어 항공 응용 분야에 대해 독점 라이선스가 부여되어 있습니다.
Advent는 HT-PEM MEA가 더 높은 온도에서 작동하여 더 작고 가벼운 라디에이터를 가능하게 하고, 열 관리, 주행거리 및 전기 항공기의 성능을 개선한다고 밝혔습니다. 이 회사는 Stralis Aircraft와의 협력 및 고정익, eVTOL 및 비행 자동차 플랫폼에서 100개가 넘는 기업과의 참여를 언급했습니다. 발표는 리튬 이온 에너지 밀도(약 0.3 kWh/kg)와 액체 수소(약 33.3 kWh/kg)를 대조하여 장거리 비행에 대한 적합성을 강조합니다.
Advent Technologies (NASDAQ: ADN) a annoncé des progrès dans l'électrification de l'aviation en utilisant ses piles à combustible à membrane d'échange de protons à haute température (HT-PEM FCs) et l'assemblage électrode membranaire exclusif Ion Pair™, développé avec le Los Alamos National Laboratory et licencié exclusivement pour des applications aéronautiques.
Advent a déclaré que ses HT-PEM MEAs fonctionnent à des températures plus élevées pour permettre des radiateurs plus petits et plus légers, améliorant la gestion thermique, l'autonomie et les performances des aéronefs électriques. L'entreprise a cité une collaboration avec Stralis Aircraft et un engagement auprès de plus de 100 sociétés travaillant sur des plateformes à ailes fixes, eVTOL et voitures volantes. Le communiqué met en regard la densité énergétique lithium-ion (~0,3 kWh/kg) et l'hydrogène liquide (~33,3 kWh/kg) pour souligner l'aptitude au vol longue distance.
Advent Technologies (NASDAQ: ADN) kündigte Fortschritte bei der Elektrifizierung der Luftfahrt an, indem es seine Hochtemperatur- Protonenaustauschmembran-Brennstoffzellen (HT-PEM FCs) und das proprietäre Ion Pair™ Membran-Elektroden-Assembly (MEA) einsetzt, entwickelt mit dem Los Alamos National Laboratory und exklusiv lizenziert für Luftfahrtanwendungen.
Advent sagte, dass seine HT-PEM-MEAs bei höheren Temperaturen arbeiten, um kleineren, leichteren Kühlern zu ermöglichen, was das Wärmemanagement, die Reichweite und die Leistung für Elektroflugzeuge verbessert. Das Unternehmen verwies auf die Zusammenarbeit mit Stralis Aircraft und das Engagement von über 100 Unternehmen, die an Plattformen mit Festflug, eVTOL und fliegenden Autos arbeiten. Die Mitteilung vergleicht Lithium-Ionen-Energiedichte (~0,3 kWh/kg) mit Flüssigwasserstoff (~33,3 kWh/kg), um die Eignung für Langstreckenflüge hervorzuheben.
Advent Technologies (NASDAQ: ADN) أعلنت عن تقدم في تمكين الكهرباء في مجال الطيران باستخدام خلايا وقود بغشاء تبادل البروتونات عالي الحرارة (HT-PEM FCs) وتجميع أقطاب الغشاء المملوءة بنظام Ion Pair™، الذي طورته مع Los Alamos National Laboratory وبترخيص حصري لتطبيقات الطيران.
قالت Advent إن HT-PEM MEAs تعمل عند درجات حرارة أعلى لتتيح رادياترات أصغر وأكثر خفة، مما يحسن الإدارة الحرارية والمدى والأداء لمركبات الكهربائية. أشارت الشركة إلى تعاون مع Stralis Aircraft والمشاركة عبر أكثر من 100 شركة تعمل على منصات ذات أجنحة ثابتة وeVTOL وسيارات طائرة. يبرز البيان مقارنة كثافة طاقة الليثيوم-أيـون (~0.3 كWh/kg) بالهيدروجين السائل (~33.3 كWh/kg) لإبراز ملاءمة الرحلات الطويلة.
Advent Technologies (NASDAQ: ADN) 宣布在航空电气化方面取得进展，使用其高温质子交换膜燃料电池（HT-PEM FCs）和专有的 Ion Pair™ 膜电极组装（MEA），该组装与洛斯阿拉莫斯国家实验室共同开发并获得航空应用的专有授权。
Advent 表示，其 HT-PEM MEAs 在更高温度下运行，以实现更小更轻的散热器，改善电动飞行器的热管理、续航与性能。公司提到与 Stralis Aircraft 的合作，以及在固定翼、机动飞行汽车（eVTOL）和飞行汽车等平台上参与的超过 100 家公司。公告将锂离子能量密度（约 0.3 kWh/kg）与液态氢（约 33.3 kWh/kg）进行对比，强调其适用于长距离飞行。
- Exclusive Ion Pair MEA license with Los Alamos National Laboratory
- HT-PEM enables smaller, lighter radiators for aircraft powertrains
- Improved range and performance claimed via higher-temperature operation
- Collaborations with Stralis Aircraft and over 100 companies
- Liquid hydrogen energy density noted at 33.3 kWh/kg versus 0.3 kWh/kg for batteries
- None.
Insights
Advent’s HT-PEM fuel cells and an exclusive Ion Pair™ MEA licence aim to reduce cooling mass and extend electric flight range.
Advent’s high-temperature proton exchange membrane (HT-PEM) architecture, paired with the proprietary Ion Pair™ membrane electrode assembly developed with Los Alamos National Laboratory, is presented as a direct enabler of lighter thermal-management systems in aircraft. The announcement cites higher operating temperature as the mechanism that removes humidification needs and allows smaller, lighter radiators, which the company links to improved range, performance, and operating costs for electric aircraft.
The claim rests on two concrete facts disclosed here: the energy-density contrast between lithium-ion (around 0.3 kWh/kg) and liquid hydrogen (about 33.3 kWh/kg), and the stated integration with Stralis Aircraft and other partners. These facts support a plausible technical pathway where higher-temperature operation simplifies cooling and packaging compared with low-temperature PEMs, potentially improving powertrain mass and drag.
Key dependencies include successful integration of the HT-PEM stacks into aircraft powertrains, verification of the claimed radiator-size and weight reductions under flight conditions, and demonstration of operational reliability at the higher temperatures described. Watch for prototype flight demonstrations, validated thermal-management metrics, and published performance numbers from the Stralis collaboration as near-term monitors of progress.
LIVERMORE, Calif., Oct. 29, 2025 (GLOBE NEWSWIRE) -- Advent Technologies Holdings, Inc. (NASDAQ: ADN), an innovation-driven leader in fuel cell and hydrogen technology, is accelerating the electrification of aviation through its cutting-edge high-temperature proton exchange membrane fuel cells (HT-PEM FCs). In collaboration with Stralis Aircraft and other aerospace pioneers, Advent’s technology is helping enable the next generation of sustainable flight — from fixed-wing aircraft and eVTOL taxis to emerging flying car platforms.
“More than 100 companies — from startups to established aerospace leaders — are developing electric flight solutions,” said Gary Herman, Chief Executive Officer of Advent Technologies. “Whether it’s fixed-wing aircraft, eVTOLs, or even flying cars, Advent provides the key enabling technology that makes the future of hydrogen powered flight possible.”
Advent’s proprietary Ion Pair™ membrane electrode assembly (MEA), developed in partnership with Los Alamos National Laboratory and exclusively licensed for aviation applications, lies at the heart of its HT-PEM fuel cells. This technology delivers higher power output while enabling more efficient thermal management.
“By operating at higher temperatures, our HT-PEM MEAs allow aircraft powertrains to be cooled with smaller, lighter radiators — reducing overall weight and aerodynamic drag,” explained Dr. Emory De Castro, Advent’s Chief Technology Officer. “That efficiency translates directly into longer range, improved performance, and lower operational costs for electric aircraft.”
Stralis Aircraft, a pioneer in operating fixed-wing commercial aircraft powered by liquid hydrogen and fuel cells, recognized early on that advanced cooling systems would be critical to electric flight.
“Thermal management is one of the biggest challenges in aviation electrification,” said Bob Criner of Stralis Aircraft. “By partnering with Advent early in our design cycle, we were able to integrate HT-PEM technology and fully leverage its performance and cooling advantages.”
While early electric flight prototypes have relied on lithium-ion batteries, their limited energy density (around 0.3 kWh/kg) poses significant challenges for flight duration and payload. In contrast, liquid hydrogen offers approximately 33.3 kWh/kg, making it far more suitable for long-range applications.
Conventional low-temperature PEM (LT-PEM) fuel cells — which operate below the boiling point of water — face engineering hurdles related to water management and cooling. Advent’s HT-PEM fuel cells overcome these limitations by operating well above water’s boiling point, eliminating the need for humidification and enabling compact, lightweight, and highly efficient radiator systems.
“This is the hidden advantage of Advent’s HT-PEM technology,” De Castro added. “By running hotter and drier, our fuel cells deliver superior performance while simplifying aircraft design — a true game-changer for sustainable aviation.”
About Advent Technologies Holdings, Inc.
Advent Technologies Holdings, Inc. is a U.S. corporation that develops, manufactures, and assembles complete fuel cell systems as well as supplying customers with critical components for fuel cells in the renewable energy sector. Advent is headquartered in Livermore, CA, with offices in Athens and Patras Greece. With approximately 70 patents issued, pending, and/or licensed for fuel cell technology, Advent holds the IP for next-generation HT-PEM that enables various fuels to function at high temperatures and under extreme conditions, suitable for the automotive, aviation, defense, oil and gas, marine, and power generation sectors. For more information, visit our website at www.advent.energy.
For more information, please contact:
Advent Technologies Holdings, Inc.
Press@advent.energy
About Stralis Aircraft
Stralis Aircraft is based in Australia and is aiming to be the world's leading emission-free aircraft company, producing high-performance, low-operating cost, hydrogen-electric propulsion systems and aircraft at scale. The propulsion system incorporates their proprietary high-temperature next-generation fuel cell system that is six times lighter than automotive fuel cell systems. Their hydrogen-electric aircraft will travel ten times further than battery-electric alternatives and will be cheaper to operate than fossil fuel-powered aircraft. Stralis has letters of intent to buy the aircraft from airlines across Australia, New Zealand, Asia, the USA, and Europe.
For more information, please contact:
Emma Whittlesea, Head of Partnerships, Stralis Aircraft
ew@stralis.aero / www.stralis.aero/
+61 411 530941
Cautionary Note Regarding Forward-Looking Statements
This press release includes forward-looking statements. These forward-looking statements generally can be identified by the use of words such as “anticipate,” “expect,” “plan,” “could,” “may,” “will,” “believe,” “estimate,” “forecast,” “goal,” “project,” and other words of similar meaning. Each forward-looking statement contained in this press release is subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statement. Applicable risks and uncertainties include, among others, the Company’s ability to maintain the listing of the Company’s common stock on Nasdaq; future financial performance; public securities’ potential liquidity and trading; impact from the outcome of any known and unknown litigation; ability to forecast and maintain an adequate rate of revenue growth and appropriately plan its expenses; expectations regarding future expenditures; future mix of revenue and effect on gross margins; attraction and retention of qualified directors, officers, employees and key personnel; ability to compete effectively in a competitive industry; ability to protect and enhance Advent’s corporate reputation and brand; expectations concerning its relationships and actions with technology partners and other third parties; impact from future regulatory, judicial and legislative changes to the industry; ability to locate and acquire complementary technologies or services and integrate those into the Company’s business; future arrangements with, or investments in, other entities or associations; and intense competition and competitive pressure from other companies worldwide in the industries in which the Company will operate; and the risks identified under the heading “Risk Factors” in Advent’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on June 6, 2025, as well as the other information filed with the SEC. Investors are cautioned not to place considerable reliance on the forward-looking statements contained in this press release. You are encouraged to read Advent’s filings with the SEC, available at www.sec.gov, for a discussion of these and other risks and uncertainties. The forward-looking statements in this press release speak only as of the date of this document, and the Company undertakes no obligation to update or revise any of these statements. Advent’s business is subject to substantial risks and uncertainties, including those referenced above. Investors, potential investors, and others should give careful consideration to these risks and uncertainties.
FAQ
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