Domestic Model3 lithium iron phosphate battery mileage discount?

As the cold winter is approaching, a 'Rashomon' about Tesla's lithium iron phosphate battery mileage discount is being staged. A few days ago, some Beijing car owners reported that the actual cruising range of the domestically-made Model 3 they just bought is only about 200 kilometers, which is almost half of the official NEDC cruising range of 468 kilometers. Regarding this matter, Tesla China reported that it does not respond to the Shanghai Stock Exchange at this time. However, Tesla insiders, CATL, industry experts and car owners gave different opinions. The Beijing car owner said that in the current weather in Beijing, short-distance driving in the city is the main one, and the car is about 4 kilometers each time. Vehicles are parked in the basement at night and on the ground during the day. After being fully charged, the Model3 he bought showed a battery life of 420 kilometers, but after actually driving 241 kilometers, the battery has 5% remaining, showing a power consumption of 39 kWh. This cruising range obviously does not meet consumer expectations. According to public information, the first batch of domestic Model 3 models equipped with CATL batteries was delivered at the end of October. The lithium iron phosphate batteries equipped with lithium iron phosphate batteries have a capacity of 55 kWh, a power consumption of 12.6 kWh per 100 kilometers, and a cruising range under NEDC operating conditions. 468 kilometers, an increase of 22 kilometers compared to the previous ternary lithium battery version. Sales of Tesla's Shanghai store told Shanghai Securities that there are still a small number of Model 3 models with ternary lithium batteries on sale, but most of the domestic Model 3 models on sale are new cars equipped with Ningde era lithium iron phosphate batteries. Regarding the experience of Beijing car owners, Tesla China told Shanghai Securities that it has communicated well with car owners, but currently does not respond to this incident. Ningde Times reported on the report that its lithium iron phosphate batteries all meet the quality standards and requirements of vehicle manufacturers. 'The 240km case should be caused by a combination of factors, including usage reasons, environmental reasons, and battery characteristics.' Tesla insiders told Shanghai Securities that the owner's driving habits, local environment, road conditions, etc. Affect the actual mileage. In addition, the person expressed different opinions on Tesla's omission of many verification links such as complete vehicle testing, saying that all Tesla models have passed various national testing standards. 'Like the fuel consumption of a car, the actual mileage of an electric car is also related to everyone's car habits.' A senior car reviewer said that, like a fuel car, there are fuel-efficient drivers as well as fuel-consuming drivers. In winter, the thermal air conditioner and various applications are turned on as soon as you get in the car, and the power consumption will be very fast. It can be said that the cruising range of an electric vehicle is related to the driving style of the specific driver, the location, and the ambient temperature. Some experts in the automotive industry told the Shanghai Securities News that the battery's range is closely related to the average energy consumption of electric vehicles. If you want to further track the endurance of Tesla’s domestic lithium iron phosphate batteries produced in the Ningde era, you can compare the average The energy consumption is comprehensively tested, and on this basis, the battery's endurance under different working conditions is further judged. In addition, some people in the industry claim that the lithium iron phosphate version of Tesla Model 3 is suspected of rushing online. It is said that the previous Tesla 21700 battery development cycle was 23 months, and the lithium iron phosphate battery provided by CATL took only 9 months from the request to the actual mass production and installation. The rapid rise of lithium iron phosphate batteries is the main technical route for electric vehicle batteries. The thermal stability of lithium iron phosphate is currently the best among lithium batteries for vehicles: when the battery temperature is above 500 degrees, its internal chemical composition begins break down. In contrast, the thermal runaway temperature of ternary lithium batteries is lower than 300 degrees, and some high nickel batteries are even lower than 200 degrees. Therefore, lithium iron phosphate batteries have a lower risk of spontaneous combustion during impact and rapid charging. Although compared with ternary lithium batteries, lithium iron phosphate batteries have the advantages of low cost and good safety, but they also have the problems of relatively low energy density and easier power attenuation at low temperatures. According to related studies, under the same low temperature conditions in winter, the cruising range of a vehicle equipped with a ternary lithium battery will be reduced by 25%, and the lithium iron phosphate version may reach as much as 35%. It is precisely because of these shortcomings that in the previous few years, lithium iron phosphate batteries were regarded as a representative of low-end batteries, and only a small number of manufacturers used them on low-end models. But entering 2020, the situation is changing rapidly. With the improvement of lithium iron phosphate battery technology, its performance has been recognized by mainstream car companies. First in early 2020, BYD Chairman Wang Chuanfu announced the launch of lithium iron phosphate “blade batteries”, which were soon used in BYD’s “Han” and other major electric models. At the same time, Tesla also chose the Ningde era lithium iron phosphate battery as the supplier of the domestic Model 3 standard battery life version. After the price dropped to about 250,000 yuan, the monthly sales of Tesla's domestic Model 3 in the past two months have reached the level of about 20,000 vehicles. At the same time, the domestic Model 3 equipped with lithium iron phosphate batteries has also landed on the European market in the cold winter on November 26. The follow-up performance of these vehicles in this winter is worth paying attention to. The picture shows a new Tesla Model 3 equipped with a lithium iron phosphate battery produced by CATL, ready to be exported to Europe.