As the "heart" of a pure electric vehicle, the power battery is crucial to the success of any pure electric vehicle. Performance indicators such as battery capacity and lifespan are used to measure battery performance. During long-term use, battery capacity and other parameters will decrease. So, what is the relationship between the number of battery cycles and the battery itself?
Cycle life refers to the time and number of times a battery is used. In other words, it's the cycle of fully charging the battery, then draining it completely, then fully charging it again, then draining it completely, and then fully charging it again. For power batteries, one complete charge-discharge cycle is considered a cycle. Based on this, batteries have a cycle life.
According to the lifespan of ternary lithium batteries, the battery lifespan is about 1500 to 2000 cycles. This number of cycles will decrease as the battery is used. A decrease in the number of cycles means that the battery lifespan is also decreasing. During use, as the number of cycles decreases, it means that irreversible electrochemical reactions will occur inside the lithium battery, leading to a decrease in capacity.
In summary, the lifespan of a lithium battery depends on its quality and materials. The number of cycles is inextricably linked to the battery's lifespan. Each completed cycle reduces the battery's capacity slightly, thus shortening its lifespan.
