Harvard solid state battery12/4/2023 ![]() Theoretical and computational work explains this improved voltage window in terms of volume constriction, which resists the decomposition accompanying expansion of the solid electrolyte. This results in a stability window of 0.7–3.1 V and quasi-stability window of up to 5 V for Li-Si-P-S sulfide electrolytes with high Si composition in the shell, a window much larger than the previously predicted one of 1.7–2.1 V. Here we show that the electrochemical stability window of sulfide electrolytes can be improved by controlling synthesis parameters and the consequent core-shell microstructural compositions. Sulfide solid electrolytes show some unique properties, such as the high ionic conductivity and low mechanical stiffness. ![]() Navy's worst corruption scandal Follow Mashable SEA on Facebook, Twitter, Instagram, YouTube, and Telegram.Ĭover image sourced from AutoEvolution and The Mirror.Abstract: Solid electrolyte is critical to next-generation solid-state lithium-ion batteries with high energy density and improved safety. 'Fat Leonard': The M'sian at the center of the U.S. This Malaysian sells roasted pork with a side of extra spicy dance moves Here are 7 chocolates you can get that are way weirder than Cadbury and KitKat Here’s what others are currently reading:įilipino nurses now highly sought after in several developed nationsĤ girls and 1 boy set to represent Malaysia at Swiss Robot Olympics Hopefully with such efficient charging capabilities, this new class of batteries may finally see more parts of the world become quickly acquainted with more EVs on the road. "In order to electrify this segment, EVs need to recharge at comparable times to internal combustion vehicles (which are your standard petrol and gas-powered cars, trucks and bikes), essentially in the time you'd currently spend at the gas pump," he said. don't have garages, performing overnight charging isn't feasible. "However, broad adoption of electric vehicles requires batteries that can meet a diverse set of consumer needs."įor example, he said, taking into account that 37 percent of EV users in the U.S. "Complete electrification of the vehicle fleet is one of the most meaningful steps we can take to fight climate change," said Fitzhugh. Success in reducing charging times and prolonging battery life will only make the adoption of EVs more swift, reduce the pollution caused by manufacturing such batteries, and in turn tone down carbon dioxide emissions by quite a bit. Obviously, such innovation can only be welcomed considering how much we now view EVs as the future of transport. "We don't see any fundamental limit to scaling up our battery technology," he said. He also explained that in the lab, the battery prototype was able to successfully complete between 5,000 to 10,000 charge cycles – significantly better than the 2,000 to 3,000 cycles achievable by current-day best-in-class batteries. "We set out to commercialize this technology because we do see our technology as unique compared to other solid-state batteries." IMAGE: EV Connection Paulson School of Engineering and Applied Sciences (SEAS). ![]() "If you want to electrify vehicles, a solid-state battery is the way to go," said co-founder Xin Li, who is also a professor of materials science at Harvard's John A. ![]() The team plans to first create a working battery the size of a human palm, and then move on to a full-sized battery that can be installed in EVs. So far, the startup has managed to net US$5.15 million in seed funding for further development of its technology, and there are plans to scale up in the years to come. Made out of high-density solid state materials (hence its name), the risks and potential hazards typically associated with lithium ion batteries are eliminated, and the battery itself is deemed significantly more stable and durable, allowing for a much longer lifespan – something current mainstream batteries in EVs and smart devices currently lack. A coin-sized prototype of the battery was seen charging within three minutes, with the durability to charge for over 10,000 cycles in its lifetime.Įqually as impressive is the composition of the battery. Well, that's absolutely what's happening, as evidenced by a new battery developed by a team of Harvard University researchers comprising of Xin Li, William Fithugh, Luhan Ye, and Fred Hu.Ĭalling their tech startup Adden Energy, the team have managed to refine a novel type of battery called a solid-state battery, with the aim of eventually putting them in electric vehicles (EVs). As the world moves towards the electrification of everything, it's only reasonable to expect that the batteries in our daily tech – smartphones, watches, laptops, or daily commute vehicles, even – should only continue improving in efficiency and efficacy. ![]()
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