Electric car winter armpit battery life reduction _ long battery life recommended

The mileage of an electric car becomes shorter as soon as it arrives in winter. Why is this? Let's take a look at it and, by the way, recommend several long-life electric cars.

Recently, according to domestic media reports, the world's first low-temperature battery products were born in China. According to the electric vehicle era, it can quickly heat up from minus 30 degrees to more than 0 degrees, thus activating the normal application of the power battery.

When the electric car was just developing, it was spit out because of its short cruising range. Nowadays, with the development of science and technology, the cruising range is generally 300 kilometers and above, which can be said to be greatly improved. Even so, for an old driver who is accustomed to driving a fuel truck, the electric car is still short-lived if there is no comprehensive cruising range of more than 500 kilometers.

Another serious test that comes with electric vehicles is that in the low temperature of winter, the mileage of electric vehicles is greatly reduced. It is good to reduce the mileage by 20% to 30%. The cruising range is almost halved, and even more is directly in the armpit. . Although the car companies have also introduced some winter low-temperature battery heating technology, but the effect is really good, it is not known, it is still necessary to wait for the user to experience it.

However, according to domestic media reports, the world's first low-temperature battery products were born in China. According to the electric vehicle era, it can quickly heat up from minus 30 degrees to more than 0 degrees, thus activating the normal application of the power battery. Sun Fengchun, one of the technical team's principals and a professor at Beijing Institute of Technology, evaluates the low-temperature heating of the vehicle's power battery: in cold weather, the mileage of the electric vehicle can be reduced by 40% to 50%, and it can't be charged below zero, which makes it It became a 'greenhouse flower'. The method of "heating up" the battery is usually external heating, but this method is not only energy-intensive but also unsatisfactory.

According to Xiaobian, the product development team of low-temperature battery is composed of Beijing Institute of Technology, CITIC Guoan Mengli Power Technology Co., Ltd. and US EC Power Company. According to Sun Fengchun, the low-temperature battery is the principle that the technician uses the wire to heat up and heat, and the nickel foil is added to the battery cell. After being energized, the nickel foil generates heat, which causes the internal temperature of the battery to rise. After reaching a certain temperature, the foil will be automatically disconnected for safety. "In a laboratory environment of minus 30 degrees, the battery using this technology can quickly rise to zero in just 30 seconds, increasing its discharge power by more than 6 times and increasing the charging power by more than 10 times." It does not change the original structure of the battery, and the transformation cost is extremely low, and is suitable for various types of batteries such as lead-acid batteries and Lithium Batteries.

So the question is, since this low-temperature battery is so good, why are those new energy vehicles not using this power battery? According to Sun Fengchun, this battery will mainly serve the Beijing-Zhangjiakou Winter Olympics in 2022. “During the Winter Olympics, the outdoor temperature may be as low as minus 30 degrees. The low temperature battery can ensure the normal operation of the vehicle. In addition, before December of this year, the team will develop three types of prototype vehicles, including minibuses, bus and car. And complete the verification test of the prototype in the cold and cold zone before the Spring Festival next year.

Originally, the current cruising range of electric vehicles is not very long, coupled with the low temperature in winter, the general battery life of electric vehicles is greatly reduced, which can be regarded as a "nightmare" for the owners of electric vehicles. However, the birth of the world's first low-temperature battery product, although this product has not gone out of the laboratory until now, but still let a lot of new energy car owners see a glimmer of hope.

However, the endurance of this low-temperature power battery, the actual winter will use this low-temperature battery life mileage will have much impact, still have to be tested in electric vehicles.

The maturity of electric vehicle technology is gradually increasing, and the country's auxiliary policies are gradually growing. Are you still ready to open an "environmental super car" - electric car? For pure electric vehicles, everyone is most concerned about the cruising range. So, the new energy vehicles that are currently on the market have those "extra long standby" pure electric vehicles to choose from? The following electric state Xiaobian will introduce you to the ranking of the pure electric vehicle cruising range.

Pure electric car cruising mileage ranking: Tesla ModelS

Maximum cruising range: 502 km

ModelS' 17-inch touch screen controls most of the vehicle's features, including opening a panoramic sunroof, setting up an automatic temperature control system, changing channels for a radio station, etc. Simply click or swipe on the touch screen. Touch screens, digital instrument clusters and steering wheel buttons seamlessly integrate multimedia, navigation, communications, cab control systems and vehicle data.

At present, there are six ModelS models in China, including all-wheel drive 70D, rear-wheel drive 85, all-wheel drive 85D and the latest all-wheel-drive P85D. The price is between 68.89 - 13.152 million. . The maximum cruising range is 502 km, and the acceleration of 100 km is only 3.3 seconds.

Pure electric car cruising mileage ranking: BYD e6

Maximum cruising range: 300 km

The BYD e6 has a top speed of more than 160 kilometers per hour, while the energy consumption per 100 kilometers is about 20 degrees, which is only 1/3 to 1/4 of the fuel price. The car's guide price is between 30.98 and 369,800 yuan, and the subsidy price is 19.98 - 259,800 yuan.

Pure electric vehicle cruising mileage ranking: Tengshi electric car

Maximum cruising range: 300 km

The Tengshi electric car is equipped with a lithium iron phosphate (LFP) battery. The battery pack is protected by a sturdy aluminum frame and mounted under the body to the safest part of the car body. In addition, Tengshi's intelligent current management system continuously monitors the energy flow between the battery and the power system to ensure that in the event of an accident, the battery will automatically disconnect and quickly discharge to a safe voltage in a critical state.

The Tengshi electric vehicle is equipped with a pure motor with a maximum power of 86 kW. The acceleration of 0-50 km is only 4.3 seconds. The maximum speed of the vehicle is 150 km/h and the maximum torque is 290 Nm. In addition, the 47.5 kWh large battery capacity, German suspension adjustment, and 300 kilometers of cruising range will bring great driving pleasure and comfort to consumers.

Pure electric vehicle cruising mileage ranking: Beiqi EV200

Maximum cruising range: 240 km

The EV200 can enjoy a subsidy of 90,000 yuan from the state and the locality in cities such as Beijing. The price range after subsidy is 116,900 yuan. In addition, the purchase of EV200 is also exempt from vehicle purchase tax. The EV200 is equipped with a set of 30.4 kWh ternary lithium batteries, with a range of up to 200 kilometers and a maximum cruising range of 240 kilometers.

Pure electric vehicle cruising mileage ranking: Beiqi New Energy ES210

Maximum cruising range: 210 kmOn December 16, 2014, Beiqi New Energy's pure electric vehicle ES210 (Suibao EV) was officially listed. The official guide price of the vehicle was 346,900 yuan and the subsidy was 259,900 yuan. The power system uses a permanent magnet synchronous motor with a maximum power of 109 hp and a peak torque of 255 Nm to match the single-speed gearbox. The maximum speed is 130 km/h. The battery is equipped with a ternary Lithium Battery pack jointly produced by BAIC New Energy and South Korea SK with a capacity of 30.4 kWh and a single charge to support a cruising range of more than 200 kilometers.