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Chemical storage of hydrogen in salt Efficient, safe and scalable

Energy In Salt

AKROS Energy develops innovative, non‑hazardous chemical hydrogen storage solutions that make hydrogen easy to transport, store, and deploy at industrial scale. Backed by H2APEX and supported by EU funding, our patented technology delivers safe, cost-efficient storage for the global energy transition.

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Zero Hazard Materials

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Exceptional Cost Efficiency

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Climate Friendly

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Made From Naturally Abundant Materials

Technology

The breakthrough lies in hydrogen storage using salt solutions – a simple yet revolutionary approach to storing hydrogen. This method relies on non-toxic materials and ensures a very high level of safety, redefining the standards for energy storage and transport.

We convert hydrogen gas into a hydrogen rich solution. The reversible process relies on potassium bicarbonate (salt-) and potassium formate (salt+) – two safe and readily available compounds. The simplicity of our approach is the key for its affordability and safety.

KHCO3 + H2 ⇌ KHCO2 + H2O

Bicarbonate-Formate Cycle for Hydrogen Storage

Applications

Stationary Hydrogen Storage

Stationary Hydrogen Storage

Hydrogen Transportation

Hydrogen Transportation

How It Works

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Hydrogen Carriers Compared

Formate
Liquid H2
Ammonia
LOHC
Dangers
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Storage efficiency (round-trip)
77%
63%
30%
42%
Process parameters
60 °C
0 – 30 bar
– 260 °C
400 – 500 °C
100 – 300 bar
300 °C
0 – 50 bar
H₂ Content (wt%)
2,4%
100%
17,6%
6,5%
H₂ Content (kg/m³)
45,5
70,8
121,0
65,7
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Contact

Call Us

+ 49 381 79 99 020

Email Us

Location

Hans-Adam-Allee 1, 18299, Rostock-Laage, Germany