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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

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AG5 battery.Wireless charging is getting closer

release time:2023-10-25 Hits:     Popular:AG11 battery

  

  If a year or even a few years later, you see a charging coil sign buried in the driveway at an intersection with traffic lights in Beijing, or see a charging pile buried underground that can be raised and lowered in your own community, or even drive an electric car on a second street in Beijing, Don’t be surprised if you can charge while running on the ring, because these are the scenarios after electric vehicles can be charged wirelessly. Of course, the only difference in appearance from wired charging is a wire.

  If you still think that wireless charging only exists in theory, then you are OUT. Nowadays, traditional automobile companies such as Tesla, VOLVO, Audi and BMW have begun to develop or test wireless charging systems for their electric vehicles. The upstarts in the global communications and IT industries have also discovered this opportunity to take a share of the new energy vehicle industry, and have extended their tentacles to the new field of wireless charging of electric vehicles with great fanfare.

  In terms of planning for wireless charging of electric vehicles, everyone has different choices in static, semi-dynamic and dynamic charging.

  Volvo, which has announced the production of its first plug-in hybrid vehicle in China, is an active player in wireless charging. Together with the French company Alstom and the Swedish Energy Agency, they are testing a system for charging electric vehicles on fast roads.

  For this purpose, a test road of about 0.25 miles was specially built, with two cables laid inside the test road, making it possible for electric vehicles to be continuously charged as they pass by.

  In response to the transmission efficiency problem in wireless charging, Audi has proposed a different solution. They have developed a liftable wireless charging system. Its biggest feature is that it can bring the power supply coil closer to the power receiving coil at the bottom of the vehicle. Achieving power transmission efficiency of more than 90%, this method can ensure better charging efficiency when charging some high-riding SUVs.

  BMW and Mercedes-Benz, which compete with Audi, have also jointly announced that they will cooperate in the development of wireless charging technology for electric vehicles. Mercedes-Benz will conduct testing based on the new S-Class, while BMW plans to take the lead in applying it to the i8. Both parties stated that they will achieve commercial production in the next 2-3 years.

  In the field of non-vehicle manufacturing, Germany's Bosch has planned to install home wireless charging piles for users of Nissan Leaf and Chevrolet Volt in the United States, including a set of modular closets, grounded chargers and charging interfaces connected to the vehicles. Each sold Price is $3,000.

  In fact, there are also many people involved in the field of wireless charging in China. BYD applied for a patent for non-contact induction charger as early as December 2005. They sold a 40-foot pure electric bus to the University of Utah in July 2014. This bus is equipped with the latest WAVE wireless charging pad.

  In the past year, ZTE has announced its entry into the field of wireless charging for electric vehicles in China. ZTE, a large communications equipment manufacturer in China, announced that it will invest 3.5 billion yuan in the next two years to develop wireless charging technology for pure electric vehicles. In September last year, ZTE cooperated with Dongfeng Motor on wireless charging and released a high-power wireless charging bus demonstration line in Xiangyang, Hubei.

  What is the future of wireless charging technology for electric vehicles? This innovation may eventually allow new energy vehicles to completely get rid of the constraints of heavy battery modules, eliminate unsafe wires, and even run endlessly on roads covered with charging cables.

  However, before this technology can become a reality, it still has to pass many thresholds, just like the development of electric vehicle technology.

  The lack of unified standards is still the first problem that wireless charging has to face. It is inevitable for many enterprises and companies to squeeze into a relatively new field, each showing its own capabilities. Such problems also appeared in the early stages of the development of electric vehicles. To use International standardization is very important for the practicalization of wireless charging technology. In most cases where charging equipment is installed in public infrastructure, standard technology must be used to meet the demand for one charging equipment to charge vehicles from multiple manufacturers.

  Transmission efficiency is a problem faced by all wireless charging. Although Audi has proposed a lift-type wireless charging solution, it is limited to wireless charging in a stationary state. When the vehicle is in dynamic or semi-dynamic conditions, this lift-type charging The solution is obviously impractical.

  For "electrical appliances" such as electric vehicles with higher charging power, the electric energy is first converted into radio waves, and then the radio waves are converted into electric energy. Both conversions will lose a lot of energy - if the problem of power transmission efficiency cannot be solved Problem, this seems a bit out of place for electric vehicles that are green and environmentally friendly.

  In addition, safety is also a technical bottleneck faced by wireless charging. In 2012, the news that Chevrolet Cruze's electromagnetic radiation exceeded the standard caused the market to turn upside down. Charging coils, which are more powerful and have stronger radiation levels than the electrical appliances in the car, are likely to have an impact on surrounding organisms and electronic equipment, and even harm the human body. Health is a very sensitive topic today when everyone is talking about radiation discoloration. Therefore, how to deal with safety concerns is also an issue that needs to be solved to realize engineering of wireless charging of electric vehicles.


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