After the issuance of the new national standards, there are strict regulations on the standards for electric vehicles. If a lithium battery is used instead of a lead-acid battery, it must also be considered that its voltage must be the same as the original lead-acid battery. In addition, the charger must be replaced with a special lithium charger. Can lead-acid batteries for electric vehicles be replaced by lithium batteries?
The production cost of lithium batteries is high, the production equipment is expensive, labor costs account for about 40% of the production cost, and the price is about three times that of lead-acid batteries. Its triple price is not cost-effective, it is quite smooth, and the lithium battery is difficult to recycle and the utilization rate is not high. Due to the small size of lithium batteries, multiple lithium batteries are connected in series during the assembly process, which may cause a certain solder joint to be disconnected or welded during transportation and use, which is a common problem when connecting lithium batteries.
The high current discharge characteristic of the lithium ion power supply itself is a shortcoming. Taking into account the frequent start-up on congested roads, battery life will be greatly shortened. Lithium batteries have potential safety hazards of fire and explosion. No one wants to buy a “time bomb” to put under his body. Especially when consumers do not know the fact that some low-quality lithium batteries are purchased online, the sealing condition of electric vehicles is not very good, and it is easy to cause unsafe contact due to moisture and other reasons. Some people may say that lithium battery technology is developing rapidly now and there will be no such problem, but no one can guarantee that this problem will not occur.
Compared with lead-acid batteries, lithium batteries have the same weight and volume. The capacity of lithium batteries is generally about 3 times that of lead-acid batteries. However, for electric vehicles as an alternative tool, the effect is actually limited, because many lead-acid batteries also greatly improve their endurance, which reduces the gap between lithium batteries and lead-acid batteries.
If a lithium battery is used instead of a lead-acid battery, it must also be considered that its voltage must be the same as the original lead-acid battery. In addition, the charger must be replaced with a special lithium charger. Of course, there is another problem. If the lithium battery is installed improperly or there are quality problems, the controller may burn out, which is one of the reasons why installation is not recommended.
Coupled with the promulgation of new national standards, the speed limit of 25 km/h and other regulations, consumers will not be too harsh on the pursuit of electric vehicles, allowing consumers to spend several times the money to pay, I believe that not many people will be willing . The price of lithium batteries is several times that of lead-acid batteries, reflecting the low price ratio of lithium batteries, which does not meet the criteria for ordinary users to choose electric vehicles. Although lithium batteries have the characteristics of light weight, long life, and long service life, the effect is not obvious in actual operation. To replace lead-acid batteries with lithium batteries, we must also consider the size of the battery compartment. Generally speaking, the lead-acid battery compartment is relatively large, and the lithium battery is relatively small. If you want to replace it, you must consider this factor. If the gap after installation is too large, it is easy to cause small shaking inside the battery and reduce the life.
Lithium batteries are more stable than lead-acid batteries. If they are exposed to water or mishandled, they can easily explode. Therefore, this is an important reason why I do not recommend replacing lead-acid batteries with lithium batteries. Another point to note is that the lithium battery is a multi-piece structure, as long as there are problems, it will affect the overall quality.
In short, regardless of safety or cost, lithium batteries are not conducive to its promotion. In terms of current technology, lead-acid batteries are still the main one. Want to replace lead-acid electric vehicles with lithium batteries? In addition to safety, when implementing new national standards, modifications may be defined as vehicles that exceed the standards.
Post time: Oct-12-2020
