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2019-08-24. Soap, Detergent and Even Laxatives Could Turbocharge a Battery Alternative.

posted Aug 28, 2019, 4:49 PM by Alan Gould
By XiaoZhi Lim, The New York Times. [https://www.nytimes.com/2019/08/22/science/batteries-supercapacitors.html] For GSS Energy Use chapter 9. Excerpt: Living in a world with smartphones, laptops and cars powered by batteries means putting up with two things: waiting for a depleted battery to charge, and charging it more frequently when its once-long life inevitably shortens. That’s why the battery’s cousin, the supercapacitor, is still in the game, even though batteries dominate electricity storage. “There are circumstances where you don’t need a lot of energy, but you need a very quick surge of power,” said Daniel Schwartz, a chemical engineer who leads the Clean Energy Institute at the University of Washington. For example, Dr. Schwartz’s new car has start-stop technology, which is common in vehicles in the European Union to meet stringent emission standards. Start-stop systems demand that the car’s starter battery deliver big bursts of power whenever the engine starts or stops, and that it recharge quickly to keep up. That is taxing for a battery, but it is a piece of cake for a supercapacitor. ...In a study [https://www.nature.com/articles/s41563-019-0449-6] this month in the journal Nature Materials, researchers reported a new phenomenon that could potentially bring a supercapacitor’s energy storage capacity on par with lithium-ion batteries: by using a new class of electrolytes composed of ionic liquids, or salts that remain liquid at room temperature....