Can lead-acid batteries in electric cars be replaced with lithium batteries?

Recently, a friend asked me, the new national standard came out. Can their electric cars replace the lead-acid battery for lithium battery? As for this problem, as a mechanic, we are advised not to replace the car battery. Why?

The new national standard, electric vehicle lead-acid battery can be replaced by lithium battery? What did the old master say

First of all, we all know that after the introduction of the new national standard, the specifications of electric vehicles have strict rules, which means that the electric vehicle testing will be more severe. On the other hand, it is necessary for enterprises to have 3C certification and electric motorcycle qualification. To sum up, if you replace the lead-acid battery with lithium battery, you may face the risk of being unable to get on the road.

Second, if will lead acid battery replacement for lithium battery, there is necessary to consider its voltage is necessary to keep the same as the original lead-acid batteries, and chargers have to change for the dedicated li-ion battery charger, of course, there is a problem, if the lithium battery device wrong there may be any quality problem, may burn out controller, which is one of the reasons for not advocating device.

The new national standard, electric vehicle lead-acid battery can be replaced by lithium battery? What did the old master say

In addition, the lead-acid battery replacement for lithium battery, also have to consider the battery storehouse intrusive, normally lead-acid battery compartments are relatively large, and the volume of lithium-ion batteries are relatively small, if want to change it is necessary to consider the elements of good, if the device after the clearance is too large, easy to form small battery inside, reduced life spans.

The new national standard, electric vehicle lead-acid battery can be replaced by lithium battery? What did the old master say

Of course, the most important issue is the price. The price of lithium battery is several times that of lead-acid battery, which shows its low cost performance and does not meet the standard for general users to choose electric vehicles. Although lithium battery has the characteristics of light weight, longer endurance and longer service life, the effect is not so obvious in the actual operation.

Finally, compared with lead-acid batteries, the stability of lead-acid batteries is worse. If the battery is exposed to water, it may not be properly operated, and there is a simple risk of explosion. Therefore, this is also an important reason why I do not advocate replacing lead-acid batteries with lithium batteries. There is also a need to note that lithium batteries are multi-chip structure, as long as one of the problems will affect the overall quality.

In short, whether it is to re-gb rules or from the practical point of view, as a mechanic, I do not advocate the electric car lead-acid battery can be replaced by lithium battery.

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