Researchers Develop New Energy System That Allows Solar Energy Capture and Storage for Up to 18 Years

Written by Valdemar Medeiros

Published on 30/04/2022 at 16:41

A energia solar é guardada quimicamente, sendo liberada posteriormente com um catalisador. [Imagem: Daniel Spacek/Chalmers University of Technology]

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The Researchers Behind An Energy System That Allows Capturing Solar Energy, Storing It For Up To 18 Years And Releasing It When And Where Needed, Took The System A Step Forward.

A group of researchers from the Chalmers University of Technology has been working on the development of solutions for the problem of solar energy storage for about 10 years. During this period, the researchers managed to develop a liquid that, when exposed to light, is capable of altering its molecular structure, allowing it to remain in that state for years. Thus, it is feasible to store energy anytime, through what are considered simple reactions, making the development quite promising and serving to power a range of devices.

Understand How The Energy Storage System Created By Swedish Researchers Works

According to the researchers, the energy storage fluid Molecular Solar Thermal – or “MOST” – is based on a type of combination of carbon, nitrogen, and hydrogen. When the liquid is illuminated by some energy source, its molecular composition is quickly altered, transforming into an isomer.

Thus, the liquid can store solar energy without requiring any change in its composition. The molecular structure can be stored for about 18 years, the research indicates. To recover the liquid, a catalyst is required. The stored solar energy that is released comes out in the form of heat, powering a thermoelectric generator, generating electrical energy.

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Learn How The New Battery From The Swedish University Works

*For small-scale use, the chemical system has been integrated into a nanogenerator. [Image: Zhihang Wang et al. – 10.1016/j.xcrp.2022.100789]*

According to Emre Gencer, the author of the study, the part of sustainable energy transition, such as solar and wind energy, requires batteries that have different durations but can function even when there is no sun or wind. For this, the manganese-zinc battery is an excellent option, in addition to being inexpensive and high quality for these sources, thus being able to store energy for one or more days.

In the flow system, the two electrolytes with negative and positive ions are pumped into certain tanks until they can meet after passing through a membrane. A comparison was made to prove that the research is indeed viable, using other cells with manganese-zinc batteries. All analyses were conducted over periods of about 8 hours, 1 day, and 3 days.

With intervals of over one day, the battery surpassed the energy retention capacity compared to standard lithium-ion or vanadium redox flow cells. Additionally, the battery maintained its efficiency and low cost, even when taking into account everything spent on pumping the manganese slurry from the tank where it stores the energy.

Researchers Are Advancing In Energy Storage Technologies

The researchers from the Swedish University continue advancing in various energy storage technologies. Last year, a new type of battery was developed, promising to be innovative for the energy storage system derived from renewable sources, such as solar and wind energy.

A semisolid flow cell uses a mixture in which dispersed particles of manganese dioxide are aggregated, along with an additive known as “carbon black,” which is capable of conducting electricity.

Researchers Develop New Energy System That Allows Solar Energy Capture and Storage for Up to 18 Years

The Researchers Behind An Energy System That Allows Capturing Solar Energy, Storing It For Up To 18 Years And Releasing It When And Where Needed, Took The System A Step Forward.

Understand How The Energy Storage System Created By Swedish Researchers Works

Learn How The New Battery From The Swedish University Works

Researchers Are Advancing In Energy Storage Technologies

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Researchers Develop New Energy System That Allows Solar Energy Capture and Storage for Up to 18 Years

The Researchers Behind An Energy System That Allows Capturing Solar Energy, Storing It For Up To 18 Years And Releasing It When And Where Needed, Took The System A Step Forward.

Understand How The Energy Storage System Created By Swedish Researchers Works

Learn How The New Battery From The Swedish University Works

Researchers Are Advancing In Energy Storage Technologies

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