PowerCell Group and ZeroAvia have announced a new Memorandum of Understanding (MoU) to collaborate on next-generation fuel cell technologies, particularly focusing on aerospace applications. The partnership aims to co-develop fuel cell systems for heavy-duty applications requiring high energy output, such as large fixed-wing aircraft and rotorcraft. The joint research and development efforts will concentrate on medium and high temperature fuel cells to enable energy-intensive applications in the aviation industry. ZeroAvia is working on a bespoke multi-stack balance-of-plant architecture utilizing PowerCell's low temperature proton exchange membrane (LT-PEM) stacks for aviation applications. PowerCell's fuel cell stacks are already part of ZeroAvia's prototype powertrains, including the ZA600 designed for up to 20 seat aircraft. Additionally, ZeroAvia is developing high temperature PEM fuel cell (HT-PEM) stacks for its future ZA2000 powertrain, targeting 40-80 seat aircraft, and aiming for industry-leading power density. The collaboration between PowerCell and ZeroAvia will also focus on optimizing fuel cell systems' operating temperature to simplify architecture, reduce cooling and humidification requirements, and enhance power output. PowerCell's Heavy Duty Stack (HDS) is being developed for various applications, including aviation and marine, with a modular design supporting power ranges from 300 kW to 1 MW. The HDS stack offers high energy density and is expected to reduce costs and weight in larger installations. Both companies are leveraging their expertise to advance hydrogen-electric technologies and fuel cell solutions to high Technology Readiness Levels (TRL). ZeroAvia sees the collaboration as an opportunity to expand its technology into different sectors while maintaining a focus on aerospace applications. The CEOs of both companies express confidence in the future of hydrogen-electric aircraft, emphasizing the environmental and cost benefits that such innovations can bring to the aviation industry. ZeroAvia has already conducted successful tests of its ZA600-engine on aircraft and is progressing towards certification for its ZA600 and ZA2000 powertrains. With a shared vision for clean and efficient flight, PowerCell Group and ZeroAvia are poised to make significant advancements in fuel cell technologies for aerospace applications, contributing to a more sustainable and emission-free aviation sector.