Swedish researchers develop new eco-friendly thermal battery using lemons and coconut wood composite

The growing concern over the harmful effects of fossil fuels on the environment has increased the demand for clean and sustainable energy sources. To meet this demand, researchers around the world are exploring innovative ways to store and use energy in an eco-friendly way. Recently, researchers from the Royal Institute of Technology (KTH) in Stockholm, Sweden, have developed a new type of thermal battery using a composite made of lemons and coconut wood.

What is a thermal battery?

Before delving into the details of this new battery, it is essential to understand what a thermal battery is. Unlike traditional batteries, which store electrical energy, thermal batteries store energy in the form of heat. A thermal battery consists of two electrodes separated by a phase-change material (PCM). When the battery is charged, heat is generated, which causes the PCM to melt and store the energy. When the battery is discharged, the PCM solidifies, releasing the stored energy in the form of heat.

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The Lemon and Coconut Wood Composite Thermal Battery

The KTH researchers developed a new type of thermal battery using a composite made of lemon juice and coconut wood. The composite acts as the PCM in the battery, and it has several advantages over conventional PCMs. Firstly, it is eco-friendly and biodegradable, which makes it an excellent alternative to conventional PCMs that are made of toxic and non-biodegradable materials. Secondly, the composite has a high melting point, which makes it suitable for use in high-temperature applications.

To create the composite, the researchers first extracted lignin, a natural polymer found in coconut wood, and mixed it with lemon juice. They then freeze-dried the mixture to create a porous material that can store energy. The resulting composite was then used to make the thermal battery, which was tested under various conditions.

The battery was found to have several advantages over conventional thermal batteries. Firstly, it had a high energy density, which means it could store more energy in a smaller volume. Secondly, it had a long cycle life, which means it could be charged and discharged multiple times without losing its performance. Finally, it had a high thermal conductivity, which means it could transfer heat more efficiently than conventional PCMs.

Applications of the Lemon and Coconut Wood Composite Thermal Battery

The new thermal battery developed by the KTH researchers has several potential applications. Firstly, it could be used to store energy from renewable sources such as solar and wind power. The battery could store the energy generated during the day and release it at night or during periods of low wind. Secondly, it could be used in high-temperature applications such as electric vehicles and industrial processes. Finally, it could be used in remote areas where there is no access to grid electricity.

The development of a new type of thermal battery using a composite made of lemon juice and coconut wood is a significant step towards creating eco-friendly and sustainable energy storage solutions. The battery has several advantages over conventional thermal batteries, including a high energy density, long cycle life, and high thermal conductivity. The potential applications of the battery are numerous, and it could play a vital role in the transition towards a clean and sustainable energy future.

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Swedish researchers develop new eco-friendly thermal battery using lemons and coconut wood composite