The Battery Performance And Safety Of New Energy Vehicles

- May 28, 2020-

As we all know, for new energy vehicles, the power battery pack is a very core component, because the power battery pack directly determines the performance and safety of new energy vehicles. So, how should we evaluate the battery performance and safety of new energy vehicles?

First, let's talk about lithium iron phosphate batteries, which are lithium ion batteries that use lithium iron phosphate as a positive material.Lithium iron phosphate battery does not contain cobalt and other precious elements, the material cost is low, and phosphorus, iron in the rich content of the earth, so the price is cheap. Moreover, the current mainstream ternary polymer lithium battery, this battery pack is characterized by high energy density, good cycling performance.

Lithium iron phosphate battery and ternary lithium battery in terms of safety, is lithium iron phosphate battery will be higher. For example, a ternary lithium battery breaks down at 200℃, Lithium iron phosphate batteries don't break down until 800℃. And the chemical reaction of ternary lithium material is more intense, will release a large number of oxygen ions, accelerate combustion.However, the current ternary lithium battery pack energy density is higher than the lithium iron phosphate battery, so the mainstream or ternary lithium battery.

However, battery technology is advancing rapidly now. With the further development of solid-state battery pack, it is believed that future new-energy vehicle battery pack will be more safe.