Composition of automobile

As the power source of new energy vehicles, power battery is the most important system in the whole vehicle, accounting for 30%~40% of the cost of the whole vehicle, and it is also a symbolic component different from other traditional fuel vehicles. The heart of the traditional fuel vehicle is the engine, and the heart of the new energy vehicle is the power battery. At present, some people have doubts about the future development prospects of new energy vehicles due to the unexpected safety accidents of new energy vehicles and the serious shortening of the cruising range in winter.

Power battery type-ternary lithium battery

Ternary lithium polymer, referred to as ternary lithium battery for short, is a battery with nickel cobalt manganate (Li(NiCoMn)02) or lithium nickel cobalt aluminate as cathode material. Compared with lithium-cobalt battery, ternary lithium battery is a kind of energy storage device with high energy density and high voltage, which has been widely used in mobile and wireless electronic equipment, power tools, hybrid power and electric vehicles.

Power battery type lithium iron phosphate battery

Lithium iron phosphate battery is a lithium ion battery with iron phosphate (LiFePO4) as the cathode material and carbon as the cathode material. The rated voltage of the battery is 3.2V, and its biggest advantage is high safety. At present, lithium iron phosphate battery has the best thermal stability, and the thermal runaway temperature is generally above 500 degrees, so the risk of battery spontaneous combustion is very low. Secondly, the cycle life of lithium iron phosphate battery is also relatively long, and it will begin to decay after the number of charge and discharge cycles exceeds 3500, which is equivalent to 10 year. In addition, the price of lithium iron phosphate battery also has great advantages.