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H55, Sia, and CRIAQ Partner to Develop Second-Life Aerospace Battery Applications

H55, Sia, and CRIAQ Collaborate to Advance Second-Life Aerospace Battery Solutions
MONTREAL, Nov. 26, 2025 – H55, a prominent developer of certified electric propulsion systems for aviation, has announced a strategic partnership with the international consulting firm Sia and the Consortium for Research and Innovation in Aerospace in Quebec (CRIAQ), supported by the Écoleader Fund. This collaboration seeks to accelerate the reuse of batteries from electric aircraft, fostering a more sustainable and circular aerospace industry within Quebec.
Developing Sustainable Battery Lifecycle Management
The joint initiative will concentrate on creating economic and environmental frameworks for the second life of aerospace batteries. By assessing viable business models, exploring cross-sector synergies, and addressing the technical requirements for repurposing batteries into new applications, the partners aim to optimize battery lifecycle management prior to end-of-life disposal. H55 Canada and Sia are also formulating a detailed implementation plan to progressively integrate eco-responsible business practices, establish a resilient circular economy framework, and reinforce H55’s long-term sustainability commitments.
This project positions Quebec as a leader in sustainable aerospace by leveraging its extensive network of industrial, institutional, and scientific stakeholders dedicated to responsible sectoral transition. Nonetheless, the initiative faces significant challenges. The effectiveness and feasibility of second-life battery technologies remain largely unproven, and compatibility issues with existing battery chemistries could impede progress. Additionally, there is a risk that commercially viable products may not materialize within the expected timelines or budgets.
Navigating Market and Technological Challenges
Market dynamics further complicate the landscape. Persistent tightness in the lithium market, projected through 2027 to 2030, presents both opportunities and constraints for battery producers. The success of this initiative may also influence competitor strategies, particularly as integrated players such as CATL adjust their supply chains to optimize market positioning.
Despite these obstacles, the partners express cautious optimism. Étienne Ferland, Managing Director of H55 Canada, stated, “As a leader in aviation electrification, H55 is fully committed to maximizing the potential of our batteries throughout their life cycle, including second-life applications after their useful life on aircraft. The strength of the Quebec ecosystem allows us to imagine and develop new applications that demand the same safety standards as our aviation products. This shared vision positions H55 and its partners among those shaping the standards of the global energy transition.”
Guillaume Côté, CEO of CRIAQ, highlighted the organization’s dedication to sustainable aerospace, noting, “We are proud to offer concrete support to H55 through this project with Sia. By creating synergies and fostering collaborations, CRIAQ is strengthening Quebec’s technological leadership.” Myrielle Robitaille, Senior Director at Sia, added, “This collaboration allows us to explore the second life of electric aircraft batteries and move toward truly sustainable mobility.”
The partnership between H55, Sia, and CRIAQ represents a significant advancement in establishing a second-life market for aerospace batteries. By combining expertise from both private and public sectors, the initiative underscores the aerospace ecosystem’s capacity to innovate toward a more efficient and sustainable circular economy, opening new industrial and environmental opportunities as the sector contributes to the global energy transition.
About H55
H55 is a Swiss company founded by three former members of the Solar Impulse team: André Borschberg, Sébastien Demont, and Gregory Blatt. The company is dedicated to transforming aviation through certified electric propulsion and battery management systems for a broad range of aircraft, building on a legacy of innovation in sustainable aviation.

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