How is the battery degradation of new energy vehicles?

[DelElliot]

The battery degradation of new energy vehicles is caused by lithium battery abuse, temperature factors, etc. The specific details are as follows: Lithium battery abuse: When the SOC of a lithium battery is below 120%, there is no significant capacity loss. At excessively high SOC levels, the decomposition rate of the electrolyte accelerates, forming a thick deposition layer on the graphite anode, which contains lithium that is prone to precipitation. Temperature factors: Temperature is one of the key factors affecting the lifespan of lithium batteries. Excessively high or low temperatures can reduce the content of active lithium ions, damage the structure of electrode materials, and cause the dissolution of metal ions, leading to severe battery capacity degradation.