THE MUCH EXPECTED REVOLUTION IN ENERGY STORAGE

Energy storage illustration

IN ENERGY STORAGE, CHEMISTRY RESTRICTS THE POTENTIAL OF PHYSICS. SO WE MOVED AWAY FROM CHEMISTRY AND INVENTED A UNIQUE, HIGH PERFORMANCE, PURE ELECTRICAL ENERGY STORAGE TECHNOLOGY.

CHEAP, SAFE, ECO-FRIENDLY, POWERFUL, LONG-LASTING, SCALABLE AND A VERY HIGH DENSITY OF UP TO 20 000 WH/KG (≈ 100 x LI-ION)…

FREEL TECH DESIGNED THE “VACUUM CAPACITOR”, A REVOLUTION IN ELECTRICAL ENERGY STORAGE, TO OVERCOME THE CURRENT LIMITATIONS IN E-MOBILITY AND STATIONARY STORAGE.

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The Vacuum Capacitor:

Our Vacuum Capacitor technology for energy storage brings the solution :

  • No electrochemical storage : direct storage of electrons
  • Very high energy density (≈ 100 times higher than Li-Ion)
  • The lowest cost
  • Environmental friendly, easily recyclable
  • No dangerous, toxic, rare or expensive raw materials
  • Highly resilient under various temperatures

No electrochemical storage : direct storage of electrons

Very high energy density (≈ 100 times higher than Li-Ion)

The lowest cost

Environment-friendly, easily recyclable

No dangerous, toxic, rare or expensive raw materials

Highly resilient under various temperatures

An unmatched energy density ...

... at lower cost.


One of our early prototypes.
It can store approximately 1 kWh.

Prototype image

One of our early prototypes.
It can store approximately 1 kWh.

Prototype image

THE ULTIMATE ENERGY STORAGE SOLUTION

Our storage device, the Vacuum Capacitor, is similar to a supercapacitor, but energy storage is achieved by using new physical principles.
Thanks to the patented structural features, our Vacuum Capacitor is able to store charges (electrons) inside a small vacuum chamber, under high electrical field. We create the proper conditions to have these charges packed in very dense, cluster-like structures.
Hence, we achieve a volumic storage, rather than surfacic (case of the usual capacitors).
Charge and discharge are achieved through a single electrode, the cathode.
This is a highly efficient and direct electricity storage, without transformation into electrochemical, or chemical energy.

INCREDIBLE ENERGY DENSITY, HIGH ROUND-CYCLE EFFICIENCY

One such prototype Vacuum Capacitor (“VC”), approx. 50 g and 7 cm height, will typically be able to store approximately 1 kWh of energy (charges stored inside the top white ceramic cap, under vacuum).
Round-cycle efficiency of the whole system (charging system + Vacuum Capacitor) is currently being tested and undergoing improvement, in order to reach an overal efficiency not less than 95 %.

THE LOWEST COST : well under 100 USD per kWh, right now !

With its simple structure and long service life, our technology offers the most cost-efficient and reliable energy storage solution for most applications.

While Li-Ion technology (the battery pack itself) is expected to reach the $ 100 per kWh mark before 2030, with current prices closer to $170 /kWh, the cost price of our Vacuum Capacitor (including the associated charging system) is already well below this figure, and will become even lower when its massive production starts.

EASILY SCALABLE MANUFACTURING, WITH NO RARE, UNSUSTAINABLE OR EXPENSIVE RAW MATERIALS

Our Vacuum Capacitor is made of relatively common, non expensive and durable materials (usual metals, ceramics, …): it can easily be produced in large quantities, manufacturing gigawatthours of energe storage capacities at much lower price than in existing or planned gigafactories of Li-Ion batteries.

Our technology also allows us to avoid relying on supplies of rare or expensive materials, such as cobalt or lithium, whose prices are currently rising due to their scarcity or near monopoly extraction conditions. It is also known that the exploitation of these raw materials poses serious environmental and sustainability issues, without taking into account the total carbon footprint linked to the total manufacturing and supply chain.

OVER 10 YRS SERVICE LIFE EXPECTANCY

Our electrodes are designed to withstand a very large number of cycles. Our current target is to reach 100,000 cycles, which we hope to confirm soon with our current testing program.

SAFE & RECYCLABLE

Our Vacuum Capacitors will have limited individual capabilities, so it is easier to ensure their protection in all applications types : the VCs will each be encapsulated in a specific, reliable physical and dielectric barrier, to prevent current leakage, or damage in case of VC misfunction.

If a Vacuum Capacitor fails inside a storage system, its physical protection barrier, earthing (or emergency discharge system) and the system’s PMS shall ensure that it will not prevent other units from functioning properly and safely. The damaged unit will simply be replaced during the next scheduled maintenance. The free-from-electrolyte Vacuum Capacitor won’t catch on fire.

Thanks to the use of common raw materials and to their simple structure, discarded vacuum capacitors can be easily dismantled and their components recycled.

WIDE TEMPERATURE RANGE (- 60 °C … + 60°C)

The Vacuum Capacitor itself is resistant to the harshest weather conditions, such as cold or extreme heat, while most other storage technologies require air conditioning to function properly.

In our case, the appropriate temperature range must only be guaranteed for the surrounding electronic components (PMS, I&C, inverters, ...), while the compactness and the energy density of our Vacuum Capacitor make it possible to save money on the significant energy used for air conditioning.

Applications:


GRIDS & MICROGRIDS

EMERGENCY

HOME & BEYOND-THE-METER

COMMERCIAL & INDUSTRIAL

ELECTRIC TRANSPORTATION

OUTDOOR, OFF-GRID

About Us:

President picture, Gunther Irgang

Günther IRGANG,
President

CEO picture, Michael Irgang

Michael IRGANG,
CEO

FREEL TECH logo

FREEL TECH AG. is a Luxembourg-based innovative start-up, established in 2017, which is developing and testing the Vacuum Capacitor technology, covered by several patents since the early 2010’s.
Since 2018, the company is in early talks about cooperation for large-scale development of the technology with interested industry players.

FREEL TECH A.G.
25A Boulevard Royal, L – 2449 Luxembourg
GRAND-DUCHE DU LUXEMBOURG

News:

  • Vacuum Capacitor presentation
    October 2019

    Energy storage illustration Download our updated presentation here to have more details about our technology.

  • FREEL TECH participated to the final pitching event of the InnoEnergy contest
    March 2019

    FREEL TECH has been selected as one of the 21 finalists (out of 235 projects) in the frame of the the "Global electric storage call for Startups", organized by InnoEnergy. The final pitching event for these 21 companies was held in Amsterdam on March 19th – 21st.

    See our press release.Energy storage illustration

  • FREEL TECH became a Member of the World Alliance for Efficient Solutions
    (by Solar Impulse Foundation)
    December 2018

    Our profile is visible on the platform of the Solar Impulse Foundation Solar impulse foundation logo

  • FREEL TECH video
    December 2018

    Play the FREEL TECH presentation video

Facts about energy storage: did you know that…

Various calculations show that the introduction of a high share of renewable, intermittent sources of energy, higher levels of electrification in the various sectors as well as millions of EVs on the road, show that it cannot be achieved without genuine, very-large-scale energy storage. Typically, up to tens of TeraWatt.hours (TWh) may be needed at the scale of only one medium-size country like France, if it would like to reach a close-to-100 % level of electricity produced from renewable sources of energy.

By following the current track and using electrochemical batteries or hydrogen, we will likely be quite far from covering the genuine needs of a decarbonated world in terms of energy, as urged for by the latest reports on climate change.

So we are in an urgent need to have better, higher-density, safer, cheaper and more sustainable solutions for energy storage.

Meet the Vacuum Capacitor, a technology that will definitely change the game in energy storage!

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