Shulou(Shulou.com)11/24 Report--

CTOnews.com August 19 news, this week, Xiaopeng Auto released Xiaopeng S4 ultra-fast charging platform, which is the first 800V ultra-fast charging platform produced by vehicle piles in China. Xiaopeng G9 can be combined with vehicle piles to achieve a maximum charge of 5 minutes, a range of 200km and a charge of 10%. 80% of the charges enter the 15-minute era.

CTOnews.com learned that the Xiaopeng G9, which began pre-sale on August 10, is the first model to support the ultra-fast charging of the Xiaopeng S4 and is divided into two endurance versions, including a single-motor model with a range of up to 702km and a dual-motor model with a 650km. Both versions are equipped with 98kWh ternary lithium battery packs.

Xiaopeng Automobile issued an article today to answer some questions related to Xiaopeng G9 800V ultra-fast charge.

Q: what is the impact of 800V ultra-fast charging on battery life? will it damage the power battery?

A: first of all, popular science, the battery system 800V voltage is composed of a series of monomers, decomposed into each string of monomers, the voltage is not high, for the single cell, or according to the conventional voltage window use, so a single dimension of voltage rise will not affect the battery life. Our battery system has perfect software and hardware protection functions, which can protect the battery in time in case of abnormal voltage or current shock to avoid battery damage. Under normal charge and discharge conditions, the components of the battery system are designed according to the specifications of high voltage and overcharge, which can ensure the life and safety of the battery.

And, on the one hand, the battery is specially designed according to the overcharge rate, and takes the lead in carrying the cell high-rate charging technology on the G9 through the application of advanced 6-series ternary materials and overcharging design; on the other hand, our engineers have developed a matching system design, charge and discharge control strategy and thermal management strategy to ensure that the battery cell meets the battery life index during user use.

Q: the Xiaopeng G9 uses 800V ultra-fast charging, for example, is it safe to charge on rainy days?

A: many people are concerned about whether electric cars can be recharged outdoors on rainy days. First of all, for the charging port and connection system, we meet the requirements of the national standard IP55 after inserting the gun to ensure that there is no risk even if charging in rainy days, the body protection capability of the new generation liquid-cooled charging gun is higher than IP67, and the charging seat is designed with a drainage structure, which can discharge Rain Water in time, which will not affect the charging function and vehicle safety. And the high voltage devices of Xiaopeng G9 meet the requirements of IP67, and the battery pack meets the IP68 standard to ensure that there is no risk of water intake in extreme environments; moreover, the whole vehicle will monitor the insulation in real time to ensure that the power supply can be cut off at the first time even if there is leakage; at the same time, all high voltage components are connected to the car body to ensure that the potential of high voltage devices is balanced and there is no risk of electric shock even if leakage.

Q: will radiation harm the human body when using 800V ultra-fast charge?

A: it needs to be clear that the direct current used in Xiaopeng G9 high voltage charging is fixed in the direction of direct current transmission, and there is no frequency conversion. In other words, the magnetic field produced by direct current is a constant magnetic field, not electrically excited to produce electromagnetic radiation, there is no harm to human health, we can rest assured. Moreover, most of the electromagnetic radiation of electric vehicles comes from the electronic devices carried by the car itself, which is no different from fuel vehicles. Electric vehicles are a mature industry, listed products have passed the strict quality inspection of the relevant government departments, must be qualified before they can be put on the market, we can rest assured again.

Q: what level does charging 5min and battery life 200km belong to? How fast is the general charging speed of new energy vehicles at present?

A: at present, mass-produced electric cars are basically at the level of 400V and 250A, the charging power is basically about 100kW, and the charging speed is about 5 minutes with a range of 50-60 km. The advanced level of the industry is about 250kW, which can basically achieve a level of about 120-150km in 5 minutes, which is already very fast. The Xiaopeng G9 can be recharged for 5 minutes with a range of 200 kilometers, and 10% of 80% of charges enter the 15-minute era, which is the fastest among mass-produced electric cars in the world.

Q: is it true that the faster the charge is, the weaker the battery is?

A: as we all know, the amount of battery power is directly reflected through SOC. Xiaopeng car collects all the data in the charging process through a high-precision sensor, and uses a self-developed high-precision SOC algorithm to ensure that no matter how large the charging current and charging power, the SOC deviation can be less than 5%. That is to say, the error of the actual amount of battery and the amount of electricity displayed by the instrument are both in a reasonable range, and the amount of electricity directly seen by the user is true and reliable, and there will be no false mark. It is worth mentioning that under the same charging power, the 800V high voltage platform needs less charging current, less charging loss in the charging circuit, more power actually charged into the battery and higher charging efficiency.

Q: will the charging and service charges go up when using 480kW ultra-fast filling piles?

A: the current rate is the same as the current one.

When will the ultra-fast filling pile of Q:480kW be popular and how long will it be rolled out on a large scale?

On August 15, 2022, Xiaopeng's first S4 ultra-fast charging station has been completed in Guangzhou, and Xiaopeng self-operated charging station 1000 has been completed, and this year, we will focus on building S4 ultra-fast charging stations in the top 10 cities of G9 orders. By 2023, S4 stations will be used to provide the ultimate energy replenishment experience along the core highway in key cities. By 2025, it is expected to build another 2000 Xiaopeng ultra-fast charging stations to create permanent energy filling stations for car owners through intelligent, efficient and high-quality energy replenishment schemes.

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