1. Low temperature resistance performance
We know that due to the working principle of lead-acid batteries, in winter, the electrolyte concentration becomes thicker and the resistance in the battery increases, which will reduce the battery charging and discharging capacity, which will eventually lead to a decrease in the range of electric vehicles. Generally speaking, lead-acid batteries work the most stable in an environment of around 25 degrees, and can reach 100% of the power. In an environment of around 10 degrees, there is only 80% of the power, and only 50% of the original power at around zero degrees.
graphene battery has been improved by adding graphene material. Although it is also affected by temperature, it is not very affected. Its low-temperature resistance is better than ordinary lead-acid batteries. Although lithium batteries will also be affected at low temperatures, their low-temperature resistance is the best. As long as the temperature is not lower than -20 degrees, lithium batteries will hardly be affected by temperature.
2. Service life
When replacing the battery, the service life of the battery is also what everyone cares about the most. So what is the service life of these three types of batteries? Each battery has its own number of charge and discharge times. The number of charge and discharge times determines the service life of the battery.
Ordinary lead-acid batteries charge and discharge times are 350~400 times, graphene batteries charge and discharge times are 850~900 times, and lithium batteries charge and discharge times are 1200~1500 times. Through the charge and discharge times, it can be seen that the service life of lithium batteries is the longest, followed by graphene batteries.
3. Winter range
In winter, due to the influence of temperature, the battery range will decrease. So which of these three batteries has dropped the most, and which one is affected the lowest? Let’s take the 60V20Ah battery as an example to see which battery has the greatest range change when the temperature drops to around 0 degrees.
Whether it is ordinary lead-acid batteries, graphene batteries or lithium batteries, their capacity must be the same. In summer, their range is the same. For example, the range of a 60V20Ah battery is about 70-80 kilometers. However, in winter, due to the influence of temperature, the range of ordinary lead-acid batteries will become 40-50 kilometers, the range of graphene batteries is 50-60 kilometers, and the range of lithium batteries is almost unchanged.
That is to say, lithium batteries are not affected by temperature when they are around 0 degrees, graphene batteries are less affected by temperature, while lead-acid batteries are most affected by temperature, only about 50% of the original ones.
Summary:
From the comparison of the above three batteries, it can be seen that lithium batteries have the best low temperature resistance, and the service life of lithium batteries is also the longest. However, lithium batteries also have one weakness, that is, their price is higher, followed by graphene batteries. The most affected by temperature are ordinary lead-acid batteries. Therefore, in winter, if you often use electric cars for long distances, it is recommended to buy lithium batteries or graphene batteries, and graphene batteries will also have higher cost performance.
So, what do you think is better to use ordinary lead-acid batteries, graphene batteries, or lithium batteries in electric vehicles in winter? Welcome to leave comments
