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When most people hear the word "virus," they think of dangerous pathogens like HIV or SARS. However, not all viruses are harmful. In fact, some can be harnessed for good—especially when it comes to advancing technology. Recently, researchers at MIT have made a breakthrough by using a genetically modified virus called M13 to improve the performance of electric vehicle batteries.
In a study published in *Nature Communications*, the team revealed how this harmless virus can help increase the range of electric vehicles by up to three times. This is the first time that biochemical methods have been used to solve one of the biggest challenges in battery technology.
Extending the range of an electric car usually involves two approaches: increasing the number of batteries or improving their energy density. Adding more batteries increases the vehicle’s weight, which can actually reduce efficiency. That’s why scientists focus on boosting energy density instead.
Most electric cars today use lithium-ion batteries, such as those found in the BMW i3. These offer higher energy density than nickel-metal hydride batteries, which are still used in hybrid models like the Toyota Prius. But even lithium-ion batteries have limitations.
MIT’s research introduces a novel approach using M13, a non-harmful virus. When placed in a lithium-air battery, the virus helps form nanowires coated with manganese oxide. These nanowires act as a cathode, enabling a more efficient chemical reaction that produces lithium peroxide. This process significantly increases the surface area where reactions occur, leading to a much higher energy density.
Lithium-air batteries are considered a promising future technology because they can store energy similar to gasoline. Their theoretical energy density is around 12 kW·h/kg, which is far greater than traditional lithium-ion batteries. With improvements like those from MIT, electric vehicles could soon achieve ranges over 500 km, making them more practical for everyday use.
This development marks a key step toward affordable, long-range electric vehicles. While companies like Tesla are already pushing the boundaries, innovations like these could soon change the game entirely. And with companies like Tesla exploring hybrid battery systems, the future of electric mobility looks brighter than ever.
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Biochemical Virus Extends EV Life by 3 Times
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