[email protected] 0086-755-89550077
lithium iron phosphate battery, ternary lithium battery, chinese battery manufacturers

What is the service life of lithium batteries for new energy vehicles?

 

At present, there are two main types of power lithium batteries: lithium iron phosphate battery and ternary lithium battery . lithium iron phosphate battery is longer in life and safety, while ternary lithium battery is longer low temperature performance and the capacity .

 lithium iron phosphate battery

For battery life, the life of a lithium-ion battery on a common electronic product is about 5 to 20 years, with an average of 8 years. However, with the current technical level, lithium-ion batteries have service life of only 3-5 years on electric vehicles.

The reason why the battery life of electric vehicles is short is due to the influence of working environment and large-scale charging and discharging. The number of cycles of ternary lithium battery  is about 500 to 1000 times, and lithium iron phosphate battery is about 2000 times;

 lithium iron phosphate battery

   Taking a minimum of 500 times as an example, the Chery EQ battery life is 200 kilometers, and the comprehensive working condition is 160 kilometers calculated by 80%, 500X160=80,000, which means that under normal circumstances, when the Chery EQ actually travels about 80,000 kilometers, the battery capacity will be attenuated to the original 80%; if it is calculated as 2000 times of lithium iron phosphate battery , it is about 320,000 kilometers, and if it is 400 kilometers, it is 640,000 kilometers.

    If the battery capacity on the electric vehicle is reduced to less than 80% of the initial capacity, the driving range of the electric vehicle will be significantly reduced. When the battery capacity is reduced to less than 70%, the battery must be replaced.

    For many of today's pure electric vehicles, the cost of the battery is about 40% of the total cost of the car. That is to say, replacing the battery is equivalent to changing the car by half.