For some early pure electric vehicle owners, they are now in the embarrassing period of insufficient battery life and need to be replaced, but many people will be more entangled, what kind of battery should be replaced? Lead-acid, graphene, lithium batteries?
Today, I will take you to a brief understanding of the difference between these batteries, which one is longer and more cost-effective.
In fact, the endurance of electric vehicles has always been a major problem that everyone criticizes, especially the durability of batteries, after the new national standard, many people feel that electric vehicle batteries are becoming more and more unsustainable. The reason is that in order to protect the battery to cadmium, the existence of cadmium will extend the battery life, and without cadmium element, the battery life will naturally be shortened, on the other hand, the new national standard controls the weight of the car, and the battery "slimming" becomes inevitable.
In the face of shortened battery life, the only solution is to replace, then, when you choose, which battery is better?
Graphene batteries vs lead-acid batteries
First of all, in terms of price, graphene batteries and lead-acid batteries have always had a price gap, from the beginning of the difference of 500-1000 yuan, and now the price is gradually shrinking.
In terms of durability, ordinary lead-acid batteries have about 400 charge and discharge times, which means that the battery will be replaced in only one and a half to two years at most. The number of charge and discharge times of graphene batteries can reach about 600 times, which can be used for about 3 years, which is 1 year more than the life of ordinary lead-acid batteries.
Compared with the battery life, the new graphene and lead-acid batteries have almost little difference in the range under the same specifications, but with the increase in the number of battery uses, the gap is slowly widening. Taking a year as an example, the original lead-acid battery has an endurance of 60 kilometers, and the follow-up voyage in a year may only be 30 kilometers, while the graphene battery can still maintain a range of about 50 kilometers because of the thickness of the internal lead plate.
Another point of comparison that everyone is more concerned about is the charging time, it is understood that many of the current graphene batteries are equipped with special chargers, and it takes about 5 hours to fully charge, while ordinary lead-acid batteries take about 8-10 hours to fully charge.
From the above comparison, it is clear that graphene batteries are better than ordinary lead-acid batteries in terms of battery life and endurance. Although there is a certain difference in price between the two, as the price gap narrows, it is clear that graphene batteries have more advantages in terms of competitiveness and cost performance.
Graphene battery vs lithium battery
Compared with graphene batteries, the biggest advantage is the number of charges, lithium batteries can generally reach about 2000 times, and even more than three times the number of graphene battery charges. However, such a durable lithium battery, the current market sales account for only 10% of the share.
The main reason is that compared with the previous two, a group of lithium batteries is generally three times higher than the price of graphene and lead-acid batteries, and the excessive price leads to an increase in replacement costs. On the other hand, since lithium batteries have combustible parts inside, they are not as safe as graphene batteries.
From the above comparison, it can be seen that graphene batteries may be the best choice at present under the comprehensive consideration of durability, safety and cost performance. But the three batteries have their own advantages and disadvantages, the key is to see the owner's use needs, so if it is, which battery will you choose?