What are the factors that affect the charging speed of Ev charging station instead of Ev charging station supplier? Ev charging station supplier-Besen


Besen -Ev charging station manufacturers

What are the factors that affect the charging speed of Ev charging station manufacturers? What are the factors that affect the charging speed of Ev charging station manufacturers? Recently, electric buses have gradually begun to serve as emerging mass transportation, gradually replacing traditional oil-burning buses. When it comes to electric buses, an unavoidable topic is the charging of electric buses. Buses are generally charged with Ev charging stations. As public transportation, buses need to operate in large quantities, and their charging speed must be guaranteed. What are the factors that affect the charging speed of the bus Ev charging station? Through the articles compiled by Ev charging station on behalf of the manufacturer, we have a detailed understanding. First, the bearing capacity of the electric bus battery itself affects the Ev charging station of the bus. The bearing capacity of the battery itself is a factor that cannot be bypassed by the charging speed. No matter how powerful the peripheral charging equipment is, how powerful the power is, and how strong the charging capacity is, if the battery itself has shortcomings in the acceptable charging capacity, the charging speed will definitely not be faster.

If the battery capacity is relatively large, the natural charging time will be longer. The endurance of the battery itself is affected by temperature, material and charging rate. The following three factors are briefly introduced. 1. Battery temperature Generally speaking, the higher the temperature, the faster the diffusion rate, but if the temperature is too high, it will also lead to problems such as reduced battery life and reduced charging safety.

If the temperature is too low, the same will not work. When the temperature is too low, the metal lithium in the battery will be deposited, resulting in a short circuit inside the battery. Therefore, in the cold northern winter, the electric bus must have the function of heating the battery module, so the power consumption is naturally faster. 2. The diffusivity of different electrode materials is very different. For example, lithium cobalt oxide, lithium manganate, lithium iron phosphate, etc. are all cathode materials with good performance. This is also an important reason why today's lithium batteries are named after cathode materials.

When charging, lithium ions need to be rapidly inserted into the negative electrode, which poses a great challenge to the ability of the negative electrode of the power battery to quickly receive lithium ions. Therefore, if you want to improve the charging speed of power batteries, the application of battery electrode materials has become the key, and the cost of batteries will also skyrocket. 3. Charging rate The charging rate that the battery can withstand under the remaining power is also different.

Generally speaking, the charging rate will follow a slow-fast-slow rhythm. Generally, when the remaining power reaches more than 90%, the internal resistance of the battery will increase significantly, which will slow down the charging rate. 2. Effect of Ev charging station charging power Since charging is an interaction between an Ev charging station and an electric bus, the Ev charging station will also affect the charging speed.

The charging power that can be output by different Ev charging stations is also different. In the case that the battery is compatible, higher charging power can directly affect the charging speed. To put it simply, the higher the output power of the Ev charging station, the shorter the charging time. However, at present, the Ev charging station is divided into an AC Ev charging station and a DC Ev charging station. There are AC slow charging and DC fast charging in the industry.

3. The influence of the on-board charger of the bus During the charging process of the bus, the on-board charger will participate in the current conversion process. Usually, the alternating current will be converted into direct current by the on-board charger and stored in the power battery as electrical energy. Therefore, for the design of the on-board charger of the bus, its power needs to be matched with the AC output power. If the DC charging method is adopted, due to the use of a different interface from the AC charging, the DC power is directly stored in the power battery as electrical energy, without going through the on-board charger, the charging speed is naturally much faster, but in order to ensure the battery life, To avoid overcharging and overdischarging, the car factory will set the battery management system of the vehicle's power battery.

Fourth, the influence of power load on power load is also an influencing factor, especially in summer, when users around the charging station turn on high-power equipment such as air conditioners, which makes the transformer load reach a peak, and the voltage will drop, which will affect the charging speed of the bus. . At the same time, there are so many buses. If the electric bus does not have a well-arranged charging time, there will be a sudden need for a large amount of charging, which will also affect the charging speed. It is suggested that off-peak charging can be implemented, which will not affect the operation of the bus, but also reduce the power load and save costs.

The above four points are the factors that affect the charging speed of the bus Ev charging station analyzed by the Ev charging station manufacturer. The large-scale electricity consumption of electric buses is also a test of the quality of the Ev charging station. Therefore, the product quality of the Ev charging station has passed the test and the charging speed is also guaranteed. I hope the above article will be helpful to you, and if you need it, you can contact us at any time.

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