602030 lipo battery.What should I do if the battery capacity declines? Volkswagen comes up with new solutions

　　What should I do if the battery capacity declines? Volkswagen comes up with new solutions

　　Recently, we learned from foreign media that Volkswagen is expected to launch a new ID in the second half of this year. 3 models. This car will be the first product of the new MEB electric drive platform. It is reported that Volkswagen ID. 3 and subsequent models provide a battery warranty period of 8 years or 160,000 kilometers, ensuring that the maximum capacity of the battery is not less than 70% during the period.

　　Three battery life versions, with added battery “attenuation warranty”

　　It is reported that Volkswagen ID. 3 will be available in three versions with different endurance levels, namely the basic version, the mid-range version and the top-end version; its lithium battery capacities are 48kWh, 62kWh and 80kWh respectively; under WLTP operating conditions, its cruising range is 330km. , 450km, 550km. This standard is stricter than the national standard and has more reference value.

　　For power batteries, what everyone is most concerned about is the issue of capacity attenuation. The current national standard for domestic new energy vehicle battery warranty is "8 years or 120,000 kilometers", but there are no hard and fast regulations on the issue of capacity attenuation. Volkswagen stated that in the future, all products on the MEB platform will provide an "8-year or 160,000-kilometer" battery warranty, and the battery will be guaranteed to maintain at least 70% of its available capacity during the period.

　　Low temperature lithium iron phosphate battery 3.2V 20A -20℃ charging, -40℃ 3C discharge capacity ≥70%

　　In terms of power, the car will be equipped with a permanent magnet synchronous motor on the rear axle, with a maximum power of 150kW (204 horsepower), an acceleration time of 0-100km/h within 8 seconds, and a top speed of up to 180km/h, which is basically the same as that of domestically produced vehicles. BYD Qin ProEV, Roewe Ei5 and others remained unchanged.

　　In terms of charging, Volkswagen is ID. 3 There are also two modes of slow charging and fast charging. Slow charging is completed by a car charger, which is a household charging device. Its maximum power is 7.2kW or 11kW, which can be optional. Fast charging is still a super charging equipment being laid, ID. 3 can support a maximum charging power of 125kW, which is larger than the current national standard fast charging pile (60kW) and is basically the same as the previous Tesla series products. As a reference, the current Tesla V3 charging pile power has reached 250kW, high-power charging has become a trend.

　　According to previous news, China and Japan are working on establishing a standardized next-generation electric vehicle (EV) fast charging system. The two parties will jointly develop a charging pile by 2020. The charging power will also reach more than 300kW, which can be charged in less than 10 minutes. The vehicle can be fully charged within a certain period of time. This standard is called the "Recommended National Standard (GB/T)".

　　In fact, I. The D series is Volkswagen's new new energy vehicle strategic planning model. Its first concept car has been officially unveiled as early as the 2016 Paris Motor Show, and this I. D. 3 will be launched on the market as the first mass-produced car in this series, and its positioning is a bit like the next-generation electric golf version.

　　In addition, it is reported that Volkswagen plans to achieve the sales target of 1 million electric vehicles every year starting from 2025, and I. D. The series will become the "absolute main force" among them.

　　Low temperature and high energy density 18650 3350mAh-40℃ 0.5C discharge capacity ≥60%

　　According to previous news, Volkswagen ID. The price of 3 in the European market has reached 30,000 euros, which is equivalent to about 227,500 yuan according to the current exchange rate. If such a price is introduced into the Chinese market through import, it will obviously not be competitive. We can look forward to its domestic version.

　　Editor's comments:

　　Compared with domestic "oil-to-electricity" new energy vehicles such as Bora VE and Golf EV, based on the Volkswagen ID. The series undoubtedly has a leading edge in all indicators. This is mainly due to the pure electric drive pedigree of the MEB platform, which enables the vehicle structural design to fully adapt to the layout of the electric drive system, and the layout is more reasonable. In addition, counterweights, shock absorption, Security and other areas have also been optimized in a targeted manner.

　　As a pure electric vehicle mainly for home use, ID. 3's maximum cruising range of 550km is undoubtedly a very amazing achievement, but if it is imported into the country, it will obviously not be competitive. Let's look forward to a cheaper domestic version.

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