Our mission
Design and manufacture eco-friendly and high-performance batteries. Contribute to the development of sustainable mobility. Our ambitious vision is based on disruptive technology, at the forefront of innovation.
The production of aluminum consumes electricity to transform aluminum oxide into metallic aluminum. The Lepty battery allows the abundant energy stored in aluminum to be released and re-transforms it into oxide. The result is a sustainable circular economy with high added value, where energy is stored where it is clean and inexpensive, and released wherever it is needed.
At Lepty, our laboratory embodies technological innovation. Our team of engineers and doctors, experts in their fields, push the boundaries of knowledge to continuously advance tomorrow's technologies. Every day, we reinvent the future, developing pioneering solutions to shape a sustainable and energy-responsible world.
Many attempts to harness the energy density of metals have failed due to a lack of durability and stability. Lepty, a pioneer in metal-air technology, transforms metals into a clean energy carrier. This revolutionary innovation releases the energy stored in metals, allowing it to be used efficiently to store, transport, and produce safe and sustainable energy.
From a technical standpoint, metal-air systems work through a reaction between metal, oxygen, and water, with oxygen playing a central role in releasing the energy stored in the metal.
Unlike traditional batteries that contain heavy electrodes to store oxygen, our revolutionary air electrode allows our systems to draw oxygen directly from the ambient air. This significantly lightens their structure while maximizing their efficiency.
Gravimetric energy density
Lithium-ion | 150 Wh / kg
Hydrogène | 750 Wh / kg
Lepty | 1 000 Wh / kg
Volumetric energy density
Lithium-ion | 300 Wh / L
Hydrogène | 250 Wh / L
Lepty | 1 000 Wh / L
CEO - CTO
Engineer
CSO
Doctor in chemistry from the University of Bordeaux