Long road trips through the vast expanses of the American Midwest can evoke feelings of uncertainty, especially when you’re unsure where the next gas station might appear. Before the era of smartphones, this situation was akin to an “Exacerbated Emotional Emergency,” as drivers dreaded the looming “E” on the dashboard, signifying an empty fuel tank. The fear of being stranded on the roadside, hoping for assistance and praying for safety, was a familiar road trip nightmare. This was the precursor to “range anxiety” before electric cars came into the picture. Today, many Tesla, Lucid, and Rivian owners experience microbursts of similar anxiety when contemplating the availability of charging stations outside the Bay Area.
While electric charging stations are gradually proliferating across the country, they haven’t achieved the same ubiquity as traditional gas stations. Instead of focusing solely on faster recharging solutions, Professors Soojin Park and Youn Soo Kim from Pohang University of Science & Technology, along with Professor Jaegeon Ryu from Songang University, devised a groundbreaking way to extend the distance electric vehicles can travel before needing a recharge.
Traditional lithium batteries primarily utilize graphite to create the battery’s anode, responsible for storing and discharging power. However, alternatives like silicon offer significantly higher energy storage capacity. The drawback with silicon is its propensity to expand during energy storage, posing safety risks, especially in electric vehicles.
The ingenious solution devised by these professors involves a binding material that prevents silicon from expanding while preserving its remarkable charge-holding capabilities. Professor Park highlighted the potential of this discovery, emphasizing its capacity to substantially boost the energy density of lithium-ion batteries. This advancement translates into considerably extended driving ranges for electric vehicles. In Professor Park’s words, “Silicon-based anode materials could potentially increase the driving range at least tenfold.”
Imagine embarking on a cross-country journey in a Tesla, with your range anxiety taking a back seat until you reach around 3,000 miles. This groundbreaking innovation promises to alleviate the electric vehicle range anxiety that has been a concern for many drivers, making long-distance travel in electric cars significantly more appealing.
By Impact Lab