Printed supercapacitors

What is a supercapacitor?

Unlike batteries, which store energy electrochemically, supercapacitors store it electrostatically, enabling rapid recharging. This makes them ideal for applications requiring a rapid energy boost. However, their energy density is generally lower than that of batteries, which limits their use for long-term Energy Storage .

Applications of our
Supercapacitors

Supercapacitors for electric-assist bicycles

An electrically-assisted bike without recharging

Thanks to its printed supercapacitors, this bike recovers the kinetic energy generated during pedaling, braking and descending.
This energy is stored and instantly released to boost electrical assistance when starting up and climbing.

Velo electrique Graphene
Internet Of Things

A greener, connected world

Our Graphene-based printed supercapacitors exploit its properties (conductivities, specific surface area, stability...) for ultra-fast energy storage, ideal for wireless electronics and the Internet of Things (IoT).

‍Contraryto batteries, they contain no toxic metals and boast enhanced longevity (millions of charge/discharge cycles). Their ultra-thin, flexible format enables easy integration into sensors, connected wearables and stand-alone connected objects.

Graphene dans l'IOT
Supercapacitors for drones

A recharge in minutes

Ideal for home drones dedicated to video capture, short-range delivery and leisure. Fast recharging means instant use without long waits.

Drone qui vole au graphene supercapacitors

Strategic partnerships for supercapacitors

We are working withEMPA to optimize the performance and durability of our supercapacitors, and with the Ampère laboratory to finalize their development. These partnerships reinforce our commitment to more efficient and sustainable energy storage solutions.

Advantages of printed supercapacitors

Efficiency and profitability

By printing supercapacitors instead of assembling them in the traditional way, we incorporate cutting-edge technology that guarantees cost-competitive systems without compromising on quality.

Ecological and safe

Our supercapacitors use advanced electrolytes (aqueous or solid) for improved safety and reduced toxicity, and unlike lithium-ion batteries, they contain no heavy metals or flammable solvents, making them easier to recycle and less environmentally damaging.

Lightweight and modular

In soft mobility, for example, weight is of the utmost importance. What's more, printing allows us to offer modularity in terms of size, voltage and intensity, to suit any type of product.

Supercapacitors and the energy transition


Energy storage for decarbonation

Thanks to the integration of graphene in the electrodes, our printed supercapacitors offer high power density, enabling ultra-fast charging and immediate restitution thanks to improved conductivity and an optimized active surface.
Although they do not completely replace batteries, they reduce their use in applications requiring rapid charge/discharge cycles.

Contribution to CSRD objectives

With the new CSRD directive, companies must report their environmental impact, particularly in terms of energy consumption andCO₂ emissions. Our supercapacitors fit into this approach by reducing the carbon footprint of electrical systems, extending the life of equipment and limiting the extraction of scarce resources.

Longer life than batteries
Unlike lithium-ion batteries, our supercapacitors withstand millions of charge/discharge cycles, reducing the need for replacement and lowering the ecological impact of energy storage.

Ideal use in IoT

Supercapacitors, combined with power sources, create self-powered IoT sensors, eliminating the need to replace batteries and enabling smarter, more energy-efficient buildings.

FAQ

What's the difference between a supercapacitor and a conventional battery?

Batteries store energy by chemical reactions, which limits their charging speed and lifetime. Graphene supercapacitor films from GRAPHENATON Technologies SA exploit electrostatic storage, enabling near-instantaneous recharging, high power density and a far greater number of cycles than conventional batteries.