As one of the means of transportation in our daily life, electric vehicles are now almost a must in every household. The battery is one of the important components of an electric vehicle and is called "the heart of an electric vehicle". Data shows that the annual production and consumption of batteries in China exceeds 14 billion, accounting for one-third of the world's production, making China a real "battery power".
Lead-acid batteries, graphene batteries, and lithium batteries, as commonly used types of electric vehicles, occupy an important position in the market, but which one is better? How to choose? Many consumers don't know much about it, so let's learn about it with the editor today.
1. Comparison of battery life of lead-acid batteries, graphene batteries, and lithium batteries
What is the importance of transportation? Of course, it is the battery life. The battery life of an excellent electric vehicle must also be a pole, and the battery is the key to improving the battery life. With the innovation of science and technology, in the battery market, in addition to lead-acid batteries, you can also choose Lithium, graphene and other batteries. So, which battery has the best battery life?
In the new state, the battery capacity of the three batteries is the same, and the battery life is naturally the same, but as the use time increases, the battery life of the three batteries will also change. Taking the 48V20AH battery as an example, normal For example, the battery life of the new battery is 50 kilometers, then after a year of use, the battery life of the lead-acid battery will decay to only 35 kilometers; the decay of the graphene battery is relatively small, and it can only maintain the battery life of 45 kilometers; and the lithium battery Because of the characteristics of the battery itself, the battery life is hardly affected.
Therefore, in the case of the same battery capacity, the battery life should be lithium battery > graphene battery > lead-acid battery over time. For car owners who travel long distances and long distances, it may be relatively safe to choose lithium batteries.
2. Market price comparison of lead-acid batteries, graphene batteries, and lithium batteries
Price has always been an important factor in consumers’ hearts, and the same is true for electric vehicles. A battery accounts for about two-thirds of the cost of an electric vehicle, which greatly affects the sales of electric vehicles. Therefore, the price difference of batteries has become an important factor for consumers to consider when buying a car.
In terms of battery prices, lithium batteries are the most expensive, followed by graphene, and lead-acid prices are the lowest. At the current market price, the price of a set of lithium batteries is above 2000, the price of graphene batteries is 700-1000, and the price of lead-acid batteries is relatively cheap, and the price is between 500-600.
Although lithium batteries have certain advantages in terms of service life, due to their high price and certain unsafe factors, the current electric vehicle market is still dominated by lead-acid batteries with high cost performance.
3. Comparison of service life of lead-acid battery, graphene battery and lithium battery
So, how big is the difference in life between the three batteries? The service life of the battery refers to the number of times the battery is fully charged and discharged. The more times, the longer the life.
Ordinary lead-acid batteries can only be charged and discharged about 400 times, and their lifespan is about one and a half years; graphene batteries are charged and discharged about 600 times, and their lifespan is about 3 years; and lithium batteries have the longest charge and discharge times. , about 2000 times, and the lifespan is about 5 years.
Therefore, the lifespan comparison is: lithium battery > graphene battery > lead-acid battery. If it is daily travel, then lead-acid battery is enough, but if you have a certain pursuit of performance, you can choose lithium battery.
4. Safety comparison of lead-acid batteries, graphene batteries, and lithium batteries
When it comes to the assembly of electric vehicle batteries, safety must be the primary consideration. Nowadays, many people are afraid of the occurrence of battery detonation, but in general, lead-acid batteries and graphene batteries will not detonate, and lithium batteries have the most active chemical properties. Therefore, in terms of safety: lead-acid battery = graphene battery > lithium battery. Of course, if your electric car has a battery smart safety protection board, plus you use it reasonably, these are not problems.
In summary, high-end models use lithium batteries the best, mid-range models use graphene batteries, and low-end models are more suitable for lead-acid batteries. That is to say, consumers with sufficient budget and long-distance driving can choose lithium batteries or graphene batteries, after all, the number of battery changes is small. However, if it is more economical, consumers whose budget is not enough and are used for daily travel are recommended to choose lead-acid batteries.
