Benefits of Aluminium Foam in Batteries: The Next Innovation in Battery Technology?August 19, 2022 0 By Techinstro
The demand for battery-powered devices continues to grow. The energy density of batteries is directly linked to the amount of power they can store and how much time they can operate before needing to be recharged. Therefore, as the demand for mobile devices increases, so must battery innovation to meet market demand. An innovative material that’s received much attention recently is aluminium foam in batteries. This material has well-suited for use in batteries. In this blog post, we’ll explore why aluminium foam has so many potential benefits in battery technology and where you might see it appear in the future.
Today, battery technology is one of the essential components in the gadgets we use daily. Whether our laptops, smartphones, tablets, wearable devices, or any other mobile device – batteries play a crucial role in all of them. To meet the growing demand for energy-efficient and eco-friendly battery systems, there has been an increasing interest in aluminium foam as a source for battery cathodes in recent years. Aluminium Foam has excellent potential as an alternative to graphite as a cathode material for lithium-ion batteries. Its properties also result in substantial cost savings and performance improvements over conventional graphite electrodes. Let us take a closer look at six benefits of aluminium foam in batteries:
1. Lightweight with High Capacity
Aluminium foam is lightweight and highly effective at absorbing and retaining water. This makes it an excellent material for every battery, whether it is used in cars or electronics.
A lightweight battery means less weight to move during transportation, while an increased capacity means more power can be stored per unit area. Both of these factors make aluminium foam an excellent choice for batteries. It is also non-toxic and environmentally friendly, which makes it a popular choice for many industries.
Aluminium foam can absorb up to 7 times its weight in water, keeping your batteries almost completely dry. It is also very durable, so you do not have to worry about replacing it often, even if you have a lot of batteries.
Aluminium foam can be up to 70% lighter than traditional materials like graphite and copper. This lightweight feature can significantly reduce overall battery costs due to cheaper transport and savings in energy loss during the discharge process. Apart from that, the high capacity of aluminium foam also makes it an exciting option for large-scale energy storage solutions. These two properties make it an up-and-coming candidate for the next generation of battery cathodes.
2. Better Safety Properties
Aluminium is one highly available metal in the world, used in everything from food packaging to airplanes. It is ideal for use in batteries. Aluminium is lighter and more conductive than steel or other materials, making it suitable for batteries that need to be lightweight and thin. It also has high density and stiffness, which makes it ideal for use in batteries that need to maintain strength and shape. Aluminium is also non-toxic, meaning it can be safely used around humans. These properties make aluminium an excellent material for use in batteries.
Nevertheless, there are some drawbacks as well. As aluminium becomes more popular, it becomes more difficult to find and more expensive to produce. In addition, aluminium has a higher thermal conductivity than other materials, which can lead to battery degradation issues if they get too hot. However, these drawbacks can be minimized with careful design and proper manufacturing practices. By using aluminium wisely and intelligently, designers can create safe batteries while still being lightweight and robust enough for the application.
Another benefit of using aluminium foam as a cathode material is its improved safety. Unlike graphite-based electrodes, aluminium foam operates at a much higher electrochemical potential. This prevents the electrodes from undergoing side reactions that lead to the degradation of the electrolyte and the formation of hydrogen gas. This feature is essential since hydrogen build-up can cause explosions in lithium-ion batteries.
3. Longer Battery Life
The higher electrochemical potential of the aluminium foam cathodes can also extend the lifespan of the batteries. The limited side reactions are beneficial for safety reasons and extend the battery’s lifespan. Because of these features, aluminium foam can offer up to 2-3 times the longer battery life compared to graphite electrodes. Longer battery life benefits all types of industries where battery technology is used.
4. Limited Self-Discharge
Another important property of aluminium foam is its lower self-discharge compared to graphite which is about 10%. This lower self-discharge means that batteries with an aluminium foam cathode will be less prone to self-discharge than conventional lithium-ion batteries. In other words, like graphite-based electrodes, aluminium foam can be used to prevent the “float charge” of lithium-ion batteries. This property of aluminium foam is a significant advantage, especially in the automotive industry and e-mobility. This means the battery is ready to be used whenever you start your car. The electronic devices with such batteries will have a longer “shelf life”, i.e., they can stay charged for a longer time. This significantly reduces the need for replacement and increases the sustainability of the devices.
5. Cost Savings for the Manufacturer
The higher electrochemical potential of aluminium foam electrodes also leads to improved performance in terms of capacity, Coulombic efficiency, and cycle life. These are essential factors that determine the overall efficiency of the battery in words of power and energy. This means less material can be used for the same performance, reducing the battery’s manufacturing costs.
6. Environmentally Friendly Manufacturing Process
Another benefit of using aluminium foam is that the synthesis process is less energy-intensive than conventional graphite electrodes. Furthermore, reducing the carbon required for the cathodes results in a more environmentally friendly production process.
The six benefits mentioned above of aluminium foam in batteries make it clear that aluminium foam has excellent potential for the next generation of battery cathodes. And not only has this innovative material great potential, but also it is being used in real-life applications today. It is a matter of time to completely replaces conventional graphite electrodes in lithium-ion batteries.
Buy : Aluminum Foam