Nio"Power-up Workshop" opened a class How much do you know about power batteries?

The power battery can be said to be the heart of electric vehicles, but many people only know a little about it, and there will always be some obscure proper nouns that make people's heads bigger. On January 20, NIO's "Power-up Workshop" began to express the obscure knowledge of power batteries in another way.

kWh is a unit of energy, is a power of 1000 watts of electrical appliances in use after 1 hour of energy consumption, is also often said to be "1 degree of electricity", the larger the value will positively affect the endurance of the vehicle, Weilai newly released 75kWh battery pack, the total power of 75 degrees, compared to 70kWh battery pack, Weilai models of NEDC comprehensive working conditions have improved; ternary lithium batteries and lithium iron phosphate batteries are common electric vehicle batteries, they have their own advantages but "love to kill", The ternary iron lithium battery launched by NIO combines the advantages of the two and gives the battery better performance.

Power battery in the overheating or too low temperature, the performance will be reduced, affecting the driving experience, but Weilai ternary iron lithium battery can effectively help the battery insulation, and achieve low temperature endurance loss reduction of 25%; the volume of the battery will not change with the capacity, the battery is through the mixed arrangement of different cells, the introduction of greater battery capacity and CTP technology, improve the energy density of the battery pack; the main role of BMS is to improve the utilization rate of the battery, prevent the battery from overcharging and over-discharging, prolong the service life, Monitor battery status.