At present, there are two types of batteries on the market: lead-acid batteries and lithium batteries. The advantages of lead-acid batteries and lithium batteries make it difficult for customers who do not know how to choose. Next, let me show you the difference between lead-acid batteries and lithium batteries:
1、 The service life of lithium battery is more than 3 times that of lead-acid battery
It can be seen from the following battery cycle life curve that the life of lithium battery is 3-5 times that of lead-acid battery. At 100% discharge depth, that is to say, when the electric vehicle battery is used up every day, the cycle life of the lead-acid battery is about 300~400 times, that is, about 1 year and 1 month, while the cycle life of the low-speed power ternary lithium battery is about 800~1000 times, that is, about 2 years and 8 months.
100% DOD is rare in daily use, and will be charged when the battery is low potential, that is, the discharge depth is about 50%~70%. At this time, the service life of lead-acid battery is 2~3 years, and the ternary lithium battery can be used for 7~10 years, that is, the lead-acid battery needs to be replaced three times, and the lithium battery only needs to be replaced once.
2、 Lithium battery has better performance
The endurance mileage of lithium battery is 20%~30% longer than that of lead-acid battery, mainly including:
1. Without damaging the battery, the discharge depth of lithium battery is 20% deeper than that of lead-acid battery;
2. Lithium battery is more than 60% lighter than lead-acid battery, so the electric vehicle with lithium battery has less load, so it can run farther.
3. The lithium battery has a stronger endurance in winter. Under the environment of minus 10 degrees, the capacity of the lithium battery is reduced by 20~30% less than that of the lead-acid battery, so the endurance mileage is longer than that of the lead-acid battery.
3、 Price comparison
The price of lead-acid battery will be cheaper than that of lithium battery, and the performance price ratio of lithium battery will be higher if the service life and performance are combined.
4、 Environmental protection and national policies
According to the requirements of China's environmental protection plan, the low-carbon environmental protection requirements of achieving carbon peak by 2030 and carbon neutralization by 2060 are met. As lead-acid batteries contain hydrochloric acid and some heavy metals that exceed the standard, which are highly corrosive and cause great environmental pollution, the country has begun to implement strict control restrictions on the production of lead-acid batteries. The comprehensive use of lithium batteries is the trend in the future.