Viswanathan says that the bigger test will be going from partially to fully replacing the graphite. After hundreds of tests, the company developed a combination of battery arrangements, heat transfer materials, and cooling channels that largely prevented runaway fires.Īfter Tesla launched the Roadster, Berdichevsky felt he had to either commit to another five years to see the company through development of the next vehicle, the Model S-or take the opportunity to try something new.īut it’s notable that Sila’s particles will provide only about 25% of the capacity in the battery’s anode, with standard graphite materials providing the rest.
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He set up a program to systematically evaluate a series of battery pack designs. He ended up playing a key role in addressing a potentially existential risk for the company: that a fire in any one of the thousands of batteries packed into a vehicle would ignite the whole pack. Preventing firesīerdichevsky interviewed for and landed his job at Tesla before his senior year at Stanford University, where he was working toward a degree in mechanical engineering. The company has said its technology could eventually pack as much as 40% more energy into lithium-ion batteries. Sila, which announced $590 million in funding in January, also has partnerships in place to develop battery materials for automakers including BMW and Daimler. The product is now thin enough to be inserted into “smart apparel” as well as being worn like a watch. In the case of the new fitness wearable, the novel battery materials and other improvements made it possible for Boston-based Whoop to shrink the device by 33% while maintaining five days of battery life. It also promises to deliver grid batteries that can save up more energy from solar and wind farms, or consumer gadgets that last longer between charges.Įnergy density is the key to the “electrification of everything,” says Berdichevsky, an Innovator Under 35 in 2017. Boosting the amount of energy that batteries can store makes it easier for increasingly clean electricity sources to power more of our buildings, vehicles, factories, and businesses.įor the transportation sector, a more energy-dense battery can reduce the costs or extend the range of electric vehicles, addressing two of the biggest issues that have discouraged consumers from giving up their gas guzzlers. Sila still faces some real technical challenges, but the advance is a promising sign for the potential of increasingly capable batteries to help the world shift away from fossil fuels as the dangers of climate change accelerate.
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