The scientists removed the casing of a single battery and replaced the cylindrical design with a thin plate design. The metal sheet is coated with energy storage material, one side is the positive side and the other is the negative side. According to the AAA report, American drivers drive an average of 30 miles (48 kilometers) a day. Although electric vehicles are charged for a distance equivalent to three times the number, many people are still reluctant to buy. This is the so-called "mile worry" issue. Gasoline cars still rule the highway. Mileage concerns are one of the main reasons, but a team of scientists tries to resolve this issue. Mareike Wolter, project manager of mobile energy storage systems at the German engineering and research institute Fraunhofer-Gesellschaft, teamed up with a team and is working on a new battery that will allow an electric vehicle to recharge 620 miles (1,000 kilometers) on a single charge. Walter said that the project was started three years ago when ITRI got together with researchers from ThyssenKrupp System Engineering and IAV automotive engineering to discuss how to improve the energy density of automotive lithium batteries. . They set their sights on Tesla, the popular all-electric car, and began research. Tesla's newest model, the Model S 100D, is fitted with a 100 kWh battery pack and has a cruising range of approximately 335 miles (540 kilometers). The battery is large, about 16 feet long, 6 feet wide and 4 inches thick. The battery pack contains 8,000 lithium-ion batteries, each of which is housed in a cylindrical housing that is approximately 2-3 inches (6-7 cm) tall and 0.8 inches (2 cm) in diameter. Walter told Live Science: “We thought at the time that if the space used was the same as the Tesla battery, but the energy density was higher, and the mileage could reach 1,000 kilometers, that would be a very good thing.†She believes that there is a way to achieve the goal, that is to optimize the battery material, let it store more energy; in addition there is another way, that is to improve the overall design of the system. About 50% of each cell's space is occupied by components such as the housing, anode, cathode, and electrolyte (a liquid that moves charged particles). If you put batteries into your car, you need more space because you need to connect the battery to the car's power system. "This design wastes space," Walter said. "There are many inactive components in the system. In our opinion, this is a problem." Ever since, scientists have decided to adjust the overall design of the battery. How to do it? The scientists removed the casing of a single battery and replaced the cylindrical design with a thin plate design. The metal sheet is coated with energy storage material, which is made of powdered ceramic and polymer binders. One side of the metal sheet is positive and the other side is negative. The researchers stacked the so-called bipolar electrodes one by one, as if stacking sheets of paper. The electrodes were separated by a thin electrolyte and there was a material to prevent the charge from shorting. The scientists then packaged the stacked sheets, about 10 square feet (1 square meter) in size, and connected its upper and lower parts to the car power system. The ultimate goal of scientists is to develop a battery system that is the same size as Tesla's or other electric cars' batteries. Walter said: "In the same space we can put more electrodes, store more energy." She also said that the researchers' goal is to test the system on the car by 2020.
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Scientists develop thin-film battery car to charge 1,000 kilometers once