Petrol Cars Could Be Finished Due to New Discovery by Korean Researchers

The development of electric vehicles has received a fresh boost. A research team from Pohang University of Science and Technology (POSTECH) in South Korea has successfully developed a silicon-based battery technology claimed to improve performance, energy density, and efficiency for electric car batteries. This discovery is considered a potential turning point in the global automotive industry, accelerating the mass migration of society to electric vehicles. The silicon battery crafted by the researchers offers staggering performance. With just a single charge, an electric car is claimed to be able to travel up to 1,000 kilometres. “We used a micro-silicon anode, and the result is a stable battery. This research brings us one step closer to a real high-energy-density lithium-ion battery system,” said POSTECH research team representative Park Soojin. Silicon material has long been eyed by technology giants as a battery component due to its massive storage capacity. However, the biggest obstacle has been its instability; silicon can swell up to three times its size when charged and shrink back when used, risking damage to the battery components. To overcome this, previous research typically used nano-sized silicon particles, but this approach led to exorbitant production costs and extremely complex manufacturing processes. The POSTECH team took a different, bold step by using silicon particles 1,000 times larger, on a micro-scale. The advantage is a much easier production process, cheaper costs, and significantly higher energy density. The researchers tackled the swelling issue by using a flexible gel polymer electrolyte that chemically adapts as the silicon changes shape. This gel is stably bound using electron beam radiation, ensuring the battery structure remains robust and safe despite the expansion and contraction of the silicon particles inside. This clever formulation results in a silicon battery with an energy density up to 40% greater than standard lithium-ion batteries currently powering the global EV industry. Furthermore, the technology is ready to use and does not require a complete overhaul of existing battery factories. With a longer driving range, more efficient charging times, and lower production costs, this South Korean innovation is poised to become a serious threat to petrol cars.