September 3

Everyone knows them, at least since electric mobility became the topic of our century: The lithium-ion battery. Thanks to its high capacity, chargeability and service life, it is generally regarded as the battery for electrical technology. But there is one element that seems even more suitable: aluminium.

Yes, that’s right. Aluminium is proving to be a true alternative in research conducted by the Fraunhofer IISB battery materials working group. The working group has been researching aluminium-ion batteries for over 5 years now. Here, an aluminium foil takes over the function of the anode. In the process, the battery achieves a volumetric energy density that is up to four times higher. According to Fraunhofer IISB, the aluminium-ion battery is fully charged and discharged in less than 30 seconds and maintains a charging efficiency of 90 percent in over 10,000 charging cycles. And best of all: there are no special quality requirements for the material; commercially available aluminium foil is only needed.

The scientists therefore foresee a practical application of the aluminium-ion batteries in grid storage for stationary systems in just a few years, as this is where particularly cost-effective storage with high power density is needed.

This research project demonstrates the diverse uses of aluminium, which go far beyond known areas of application. Here, aluminium not only proves to be more durable, but also reduces costs.

Source: Vogel Communication Group


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