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1000 kilometers! Germany develops Nickel Metal Hydride No. 5 battery with amazing range on a single charge
According to the latest news from foreign media, German and corporate R&D personnel and scientists are developing a Nickel Metal Hydride No. 5 battery system for vehicles. With the size of the lithium battery currently used in Tesla electric vehicles, they plan to achieve a single-charge driving range of 1,000 kilometers.
According to the American technology website LiveScience, according to statistics from the American Automobile Association, the average American drives only 48 kilometers per day, and the mileage that current electric vehicles can travel on a single charge is already three times that number. However, consumption People are still afraid to buy electric cars.
A German R&D team decided to completely conquer the so-called range anxiety of electric vehicles.
Located in Dresden, Germany, the Fraunhofer Association for the Promotion of Applied Research (Europe's largest applied science and technology R&D institution) has launched a project to develop a Nickel Metal Hydride No. 5 battery system, and researcher Mareike Wolter is responsible for the project Manager, the goal of this project is to enable electric vehicles to travel 1,000 kilometers on a single charge.
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Walter said that this project actually started three years ago, when researchers from the association and Germany's ThyssenKrupp Systems Engineering conducted a brainstorming session to discuss how to increase the battery density of automotive lithium batteries.
Their discussion mainly focused on the Model S100D, the main model of California-based Tesla Motors. This car is equipped with a battery pack with a capacity of 100 kWh and can travel 540 kilometers on a single charge.
This lithium battery pack is large enough, with a length of 4.88 meters, a width of 1.8 meters, and a thickness of 1.2 meters. The battery pack contains a total of more than 8,000 lithium battery cells. Each lithium battery unit is packaged in a cylindrical shape, with a height of 6 to 7 cm and a diameter of 2 cm.
Watt said: If we continue to use the space of Tesla's lithium battery pack, but increase the energy density, and finally be able to drive 1,000 kilometers continuously, that would be great.
According to reports, one way to increase energy density is to further optimize the materials used in batteries, and another way is to redesign the lithium battery pack.
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Currently, in every lithium battery unit, almost 50% of the space is used for packaging materials, anodes, cathodes, electrolytes and other components. In electric vehicles, additional space is needed to connect the lithium battery pack and the electrical system.
Walter said that the current design of automotive lithium batteries wastes too much space. There are some inactive components in this system, which is a part that can continue to be optimized.
The above-mentioned project team is also preparing to redesign the entire lithium battery system.
The researchers removed the individual packaging of lithium battery cells and used a thinner material. The metal sheet is coated with energy storage material, which is made from a powdered ceramic through a polymer mixing device. One side of the material acts as the anode and the other side acts as the cathode.
The researchers stacked multiple electrodes together like newspapers, and used thin electrolytes and materials to separate the different electrodes.
The researchers said that in this way, they are preparing to use denser lithium batteries in the same volume as Tesla, so that it can store more electricity and achieve a single charge range of 1,000 kilometers.
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