Lepty develops the most efficient aluminum-air battery that use metal to store and generate clean electricity
1.000 Wh / kg
Non-flammable and non-explosive
We design the most energy dense swappable battery.
For instance : one cabin luggage sized Lepty battery allows 400 km range with a car.
Easy to swap, you save a lot of time on recharge.
Once empty, Lepty batteries are refilled with aluminum and the wasted metal is 100 % recycled.
7x conventional batteries
Less than 5 minutes
Specific energy (kWh / kg)
Lithium-ion | 150 Wh / kg
H2 | 750 Wh / kg
Lepty | 1 000 Wh / kg
Energy density (kWh / L)
Lithium-ion | 200 Wh / L
H2 | 300 Wh / L
Lepty | 1 300 Wh / L
Aluminum as energy storage
Aluminum production consume electricity. Lepty metal-air technology releases the abundant energy contained in aluminum, resulting in a sustainable and profitable value chain, where energy is stored where it is abundant, clean and cheap, and released where it is most needed.
CEO - CTO