Researchers in Sweden have made a significant breakthrough in battery technology by developing a new type of battery that resembles the texture of toothpaste. This innovative battery can take on any shape, which opens up exciting possibilities for wearable gadgets, medical devices, and robots.
The team from Linköping University has designed a stretchable battery using conductive plastics and lignin, a sustainable material derived from paper production. Unlike previous attempts to create stretchable batteries that often resulted in bulky and rigid designs, this new battery maintains its performance regardless of its form. “Here, we’ve solved that problem, and we’re the first to show that capacity is independent of rigidity,” said Aiman Rahmanudin, one of the study’s co-authors.
One standout feature of this new battery is its excellent stretchability. The prototype can be stretched to twice its length and still function effectively. It has shown the ability to be recharged and discharged over 500 times without losing performance, a promising sign for potential longevity in real-world applications.
Most traditional stretchable batteries rely on rare and environmentally harmful materials, but the new design is more sustainable. Researchers claim that because the materials used are abundant and eco-friendly, it could revolutionize how devices requiring flexible batteries are powered.
Despite its advantages, the battery current only stores 1 volt, which is significantly lower than the voltage of standard car batteries. However, the research team is optimistic. They believe that this flexibility can eventually be combined with higher voltage materials like zinc or manganese in the future.
This development not only showcases advancements in battery technology but also emphasizes the importance of sustainability in its design.
-Rashmi Kumari
