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　　Which company has the best car fast charging technology? How long does it take for car fast charging?

　　Fast charging and slow charging are relative concepts. Generally, fast charging is high-power DC charging, which can fully charge 80% of the battery capacity in half an hour. Slow charging refers to AC charging, and the charging process takes 6 hours to 8.

　　The charging speed of electric vehicles is closely related to the charger power, battery charging characteristics and temperature. Under the current level of battery technology, even fast charging takes 30 minutes to charge to 80% of the battery capacity. To protect the safety of the battery when it exceeds 80%, the charging current must be smaller, and it will take longer to charge to 100%. In addition, when the temperature is lower in winter, the battery requires less charging current and the charging time becomes longer.

　　Which company has the best fast charging technology for electric vehicles?

　　Slow charging is the safest and most conventional charging method for electric vehicles. A full charge usually takes more than 6 hours, and car owners generally choose to charge their cars at night. However, what should we do when the electric car’s battery is low during the day? Even if you find a fast charging station, it will take at least two hours to fully charge. As a result, more and more fast charging technologies continue to come out. In the near future, it is likely that charging electric vehicles will be as convenient as refueling fuel vehicles. Today, let’s get to know these new technologies with Sister Faner.

　　Tesla Supercharging Station: 80% charge in 40 minutes

　　We all know that the DC fast charging pile of the State Grid has a current of 50A, which can generally charge the car to 80% within 1-2 hours. The charging socket of Tesla’s Super Charging Station can reach a maximum current of 80A, and can charge 80% in 40 minutes. However, unfortunately, Tesla’s super fast charging piles can only support charging of Tesla models.

　　Tesla recently announced plans to build super charging stations in China in the second half of this year. Tesla said that by the end of the year, when super charging piles in Mianyang, Yibin and other western regions are gradually completed, car owners will be able to choose pure charging stations whether traveling south or north. Electric self-driving routes will be more abundant and smoother. Some netizens said that 13% of Teslas have been bought by the Chinese, so there are not enough charging piles!

　　Can membrane-less battery charging be as convenient as refueling?

　　Recently, researchers at Purdue University in the United States have developed a new type of battery. The new battery is a membrane-less battery that uses new liquid electrolyte to replace the used battery fluid, just like refueling at a gas station. In addition, used battery fluid or electrolyte can also be collected and sent in batches to solar power plants, wind power plants or hydropower plants for recharging and turning into electrolytes for recycling.

　　Eric Nauman, a professor at Purdue University, said that designing and building enough charging stations requires the construction of large-scale charging infrastructure, which is expensive. However, this membrane-free battery component is not only safe, can be installed in residences, has stable performance, and is inexpensive. High, it can meet the requirements of production and sales. However, in Sister Fan's opinion, although this kind of battery has many advantages, mass production in China is still unrealistic at present. After all, my country's access to foreign power batteries is still in a restricted stage.

　　FlashBattery: Charge for 5 minutes and drive 483km

　　Some time ago, a FlashBattery (flash charging battery) technology developed by Israeli nanotechnology company StoreDot disturbed our nerves. The company claimed that this new technology battery can be charged in just 5 minutes and can support the continued driving of electric vehicles. 483km. Ingeniously, cars running on flash charging battery modules will be equipped with forty pouches, each of which contains FlashBattery technology, consisting of nanodots converted into short chains of amino acids called peptides. The nanodots are divided into The layers are arranged in a structure, and the pouches merge to form a charging module.

　　In addition, it is understood that compared with lithium batteries, the battery is not easy to burn and breaks the limitations of traditional graphite lithium batteries. The internal resistance of this fast-charging battery is very small, and the heat generated during charging is also higher than that of ordinary batteries. It is smaller, its life is about three times that of ordinary lithium batteries, and its charging cycle is about 1500-2000 times. Although the manufacturing cost of this new type of battery is 20%-30% higher than that of ordinary batteries, its advantage is that it has a long service life and is still more affordable than lithium-ion batteries on average.

　　High-voltage air charging system: charge for 10 minutes and travel 48km

　　Previously, the high-voltage air charging system developed by electric vehicle manufacturer Proterra claimed to be able to fully charge an electric bus in 10 minutes. How did it do it?

　　It is understood that the high-voltage air charging system uses machine control technology, and the bus is equipped with automatic driving software. It only takes 10 minutes to fully charge a 100-kilowatt-hour electric bus, which is enough to allow the circular bus to travel about 48 kilometers. Of course, the specific charging time depends on the size of the battery. If charged with 250-1000 volts DC, with a maximum current of 1400 amps, the system's charging speed is 9 times faster than the CHAdeMO fast charging standard and 3-4 times faster than Tesla Supercharging Stations.

　　It is worth mentioning that buses generally use old-fashioned transmission racks to provide power, but the transmission racks need to be installed along the entire route of the car, and the proterra system is stationary. In other words, bus operators can install the system near terminals or refueling stations. If this technology is really applied domestically, it will hopefully alleviate the pain point of long charging times for electric buses.

　　Technology Zone Wireless Charging Reference Design Based on BD57020MWV and BD57015GWL Elabi FOTA Upgraded Plus Monster Shared Charging Makes Life Uninterruptible Foxconn’s Acquisition of Belkin May Become a Wireless Charging Giant Maxim Releases Ultra-Small Step-Down with the Industry’s Lowest Quiescent Current and Highest Peak Efficiency What are the processes involved in converting electric vehicle charging?

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