have little influence on
< br >
The blade battery can be used for a long time, and it can be charged 2,000 times in the case of 1C charging and 1C discharge, and the lithium iron phosphate can also maintain 80% of the electricity.
< br >
As we all know, the automobile industry is a typical heavy industry, and food, textile, paper, toys and other light industries are different, enterprises want to enter this field, usually need a lot of capital investment in the early stage. Whether it is traditional fuel vehicles or new energy vehicles, the scale is often as high as tens of billions. On this alone, the barriers to entry in the automotive industry are very high, and it is difficult for the average company to enter, which means that if you want to join the team, it means burning money.
< br >
Based on the development experience of power batteries, scientific charging strategy is formulated according to the power calculation formula P=UI, under the same power, the charging voltage is high, and the corresponding charging current will become smaller. Under Joule's law Q=I2Rt, charging with large current is bound to generate a lot of heat, and the charging loss will also increase, and the greater the current charging, the greater the damage to the battery. In addition, the ternary material itself is not resistant to high temperature, so to high-power charging, it is necessary to solve the heat dissipation problem, otherwise it is easy to occur thermal runaway.
< br >
The BYD blade battery as a power battery of the lithium iron phosphate system, the material itself has a high temperature resistance of 500°C, which has a very big advantage over the ternary material 200°C. At the same time, BYD has always used high-voltage charging solutions to reduce heat production and loss, improve charging efficiency, and protect the battery. Under BYD's advanced battery thermal management system, the blade battery can maintain long-term high-power charging, and finally achieve 10 minutes of Han EV charging and a maximum driving distance of 135km.
< br >
Modular design, uniform layout, improve thermal management efficiency blade battery long blade appearance, battery pack adopts modular design, the battery directly composed of the battery pack, so that it can be evenly arranged in the battery pack, and the battery heat dissipation from the liquid cooled U-tube to the liquid cooled panel, more uniform heat dissipation, better effect, the heat dissipation area is larger than the traditional battery, reduce heat accumulation.
< br >
For the battery thermal management system, the temperature of the cell inside the battery pack is more consistent, and the heat transfer capacity of the thermal management system is higher, which can always keep the cell in the optimal operating temperature range. Therefore, in the process of long-term high-power charging, the heat generated by the battery can be released in time to avoid the impact of excessive battery temperature on the safety performance and service life of the battery.
Damage to the battery.
Most people use fast charge because they are in a hurry. If the fast charge is used for a long time, the semi-permeable film on the surface of the negative electrode of the battery will be damaged to a certain extent, resulting in the interaction between the electrode material and the electrolyte.
Byd blade battery fast charging has an impact, the charging power will maintain a relatively stable state, while basically reaching the maximum output power of the charging pile, high-power charging maintenance time can basically be charged to 90% of the electricity.
< br >
When charging an electric vehicle, we tend to pay attention to the charging power of the vehicle, because the charging power directly determines the efficiency of charging, but the charging power here is not the highest charging power, but should be the average charging power.