South Korea Creates System That Bottles Electricity and Stores 10 Tons of Liquid Air Per Day

Written by Fabio Lucas Carvalho

Published on 13/09/2025 at 09:00

Updated on 15/09/2025 at 10:32

armazenamento de ar líquido

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Pioneering KIMM System Uses Liquid Air to Store Excess Electricity, Generate On-Demand Energy, and Achieve Daily Production of 10 Tons

Researchers from the Korea Institute of Machinery and Materials (KIMM) developed the first national liquid air energy storage system in South Korea.

The liquid air storage utilizes excess electricity to cool air to a liquid state, store it, and then reconvert it into electrical energy on demand.

The team reported production of up to 10 tons of liquid air per day.

ARTICLE CONTINUES BELOW

Liquid Air Storage: Concept and Operation

When the power grid has excess, the air is cooled to extremely low temperatures until it becomes liquid and is kept in insulated tanks, forming an energy reserve.

As demand increases, the air is heated again; when it expands rapidly, about 700 times its liquid volume, the pressure drives turbines for electricity generation.

The liquid air storage allows for controlled “bottling” of electricity.

Researchers inspecting the turbo expander developed for a large-scale, long-duration liquid air energy storage system.

Components Developed by KIMM

Under the leadership of chief researcher Dr. Jun Young Park, two central elements were internally designed: a turbo expander that operates above 100,000 revolutions per minute and a cold box equipped with multi-layer insulation and powerful vacuum to maintain cryogenic conditions.

These solutions enabled the first successful test of air liquefaction for energy storage in Korea, demonstrating that the technology can operate with domestic development.

The liquid air storage thus advances as a locally conceived scalable solution.

“This is a crucial step for the future of renewable energy in Korea,” said Dr. Park. “Large-scale energy storage is the missing piece, and our work shows that LAES can provide it without geographic limits.”

Applications and Advantages of Liquid Air

The current landscape of large-scale storage primarily relies on pumped hydro and compressed air.

Such alternatives require specific geographic conditions, like mountains, valleys, or underground caverns, and also have environmental disadvantages.

The liquid air storage circumvents these restrictions by being able to be built in almost any location, a relevant feature for urban centers and industrial hubs.

The extreme cold generated can be utilized in industrial cooling processes, and residual heat from factories can be reused to increase cycle efficiency.

International Context and Next Steps

There is a global race for the technology. Companies in the UK, China, and the United States are already exploring liquid air as a means of storage.

KIMM’s achievement stands out as it was developed entirely in the country and is considered a critical step for the Korean plan to build an “energy superhighway” to transport renewable sources throughout the territory.

The current system is described as modest in the face of national energy needs; its successful operation is presented as proof of concept.

If expanded, bottled air is seen as a clean and versatile alternative for large-scale renewable energy storage.

For now, it is still early. In a world described as lacking long-term storage, Korea’s progress indicates that the future of energy may be within reach.

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Hazenof

#175555

16/09/2025 06:54

Krl a dilma estava certa quando disse pra estocar vento

Responder

Bostarala

#175437

15/09/2025 20:19

Roubaram a idéia da Dilma. Estocadora de vento

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Sergio fosàluza

#175424

15/09/2025 19:36

Dilma Russef bem que falou.

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South Korea Creates System That Bottles Electricity and Stores 10 Tons of Liquid Air Per Day

Pioneering KIMM System Uses Liquid Air to Store Excess Electricity, Generate On-Demand Energy, and Achieve Daily Production of 10 Tons

Liquid Air Storage: Concept and Operation

Components Developed by KIMM

Applications and Advantages of Liquid Air

International Context and Next Steps

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South Korea Creates System That Bottles Electricity and Stores 10 Tons of Liquid Air Per Day

Pioneering KIMM System Uses Liquid Air to Store Excess Electricity, Generate On-Demand Energy, and Achieve Daily Production of 10 Tons

Liquid Air Storage: Concept and Operation

Components Developed by KIMM

Applications and Advantages of Liquid Air

International Context and Next Steps

A giant half-ton ring fell in Kenya from space, and more than a year later, scientists still do not know where it came from.

Seen from space, an image taken by an astronaut shows an unlikely oasis in the Saudi Arabian desert, protected by a terrain that slows the advance of sand, surrounded by green circles, remnants of an extinct lake and nearly 10,000 years of preserved history.

In Botswana, a salt flat of up to 16,000 km² that was once an African megalake spends months as an absolute white desert, but during the rainy season it transforms into a shallow sea that reappears from nowhere and can be seen from space in the middle of southern Africa.

While the U.S. still faces limitations in deep space, China is developing unprecedented technology with strategic satellites that maintain communication with the far side of the Moon and aims for dominance by 2030.

Bavarian archaeologists unearthed a medieval skeleton that had an articulated iron hand in place of its left arm, and the discovery reveals that doctors were already creating sophisticated prosthetics over 500 years ago.

For the first time, scientists have mapped the Etna magma system in almost real time and discovered where the volcano was storing large volumes of molten material before years of eruptions, revealing an underground reservoir that fills and reorganizes like a living organism beneath the mountain.

More than 1,500 Chinese workers transformed an entire railway station in just one night and reduced a 7-hour journey to 90 minutes with a high-speed line of 200 km/h.

JBL Flip Essential 3 SE is launched with 30W of power (20W + 10W), Bluetooth 5.4, Auracast for multiple connections, IP67 water and dust resistance, up to 12 hours of battery life, and a price of approximately R$ 660 in China.

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