Introduction of advantages and disadvantages of lithium battery of electric vehicle

The gorgeous and concise appearance of electric vehicle lithium battery is accepted by more and more consumers, so how good is lithium battery electric vehicle? Is it really as good as what everyone says?

Now the lead-acid battery electric vehicles sell the most, but a lot of areas began to introduce lithium battery electric vehicles. Lithium battery electric vehicles, as the name suggests, is simply to replace the lead-acid lithium battery to lithium battery. How about lithium batteries for electric cars compared to lead-acid batteries? Is it really so good as everyone says? Now the country vigorously advocate energy conservation, green, environmental protection, whether it can spread and so on the question has not been answered.

What about lithium batteries for electric cars? Everyone agrees, "Lithium batteries are lighter than lead-acid batteries and have a longer life span, but they are very expensive." So what is the advantage? No one seemed able to answer.

Advantages of lithium battery electric vehicle:

1. Long life, light weight and small volume of lithium battery. Lithium battery electric bicycle power and lead-acid battery (simple electric bicycle) performance is about the same, charge 6~8 hours, according to the battery capacity can run 30~45km, weight only about one-fifth of the lead-acid battery, lithium battery electric bicycle is the biggest advantage of long life.

Statement: Lithium battery price is only an appearance of expensive. In fact, carefully calculated cost is about the same as lead-acid battery. The current general lithium battery maintain for 2 years, lead-acid battery to maintain for 1 year.

2. Lithium battery has no activation. In the use of lithium battery should be noted that the battery after a period of time into a dormant state, at this time the capacity is lower than the normal value, the use of time is also shortened. But lithium battery is very easy to activate, as long as after 3-5 normal charging and discharging cycles can activate the battery, restore normal capacity. Due to the characteristics of lithium battery itself, it has almost no memory effect. Therefore, users do not need special methods and equipment in the activation process of new lithium batteries.

3. Lithium battery with memory effect. Consumers in the lead-acid battery, nickel battery charging, have been worried about the battery memory effect. When lithium battery really began to use, you know lithium battery does not have a memory effect. If consumers don't know how to charge a lithium battery, check out the following.

Disadvantages of lithium battery electric vehicle:

1, lithium battery electric vehicle price is too high because of lithium battery

At present, the price of lithium battery electric bicycle is generally several hundred Yuan to one thousand Yuan higher than that of lead-acid battery electric bicycle, so it is difficult to get consumers' recognition in the market. Lithium battery lightweight, environmental protection, waste will not produce environmental pollution, once the application technology mature, market sales increase, the price of lithium battery electric bicycle will come down.

2, lithium battery charging time too long is counterproductive

Lithium batteries or chargers automatically stop charging when the battery is full, and there is no so-called "trickle" of nickel chargers that lasts more than 10 hours. That is, if your lithium battery is fully charged, it will be no use on the charger. And none of us can guarantee that the characteristics of the battery charge-discharge protection circuit will never change and the quality is foolproof, so your battery will be in danger for charging long time. This is another reason why we oppose long charging.

In addition, in some electric vehicles, if the charger is not removed after charging for a certain period of time, the system will not only not stop charging, but also start the discharging - charging cycle. The manufacturers may have a purpose, but it's clearly bad for battery life. So in the purchase of lithium battery electric vehicle, to consult enterprises or dealers, do a good job in lithium battery maintenance.

3. The power performance of lithium battery needs to be improved

Lithium batteries are much less resilient to fluctuations in charge and discharge than lead-acid batteries. Lithium batteries are much less resilient to fluctuations in charge and discharge than lead-acid batteries.

4. Lithium ion battery has prominent safety problems

The safety of lithium batteries still needs to be improved. The danger of lithium batteries catching fire, burning or even exploding is still not completely eliminated. Vehicle collision may lead to the battery positive and negative material breaking through the diaphragm, braking energy quickly recharging to the battery when the moment of ultra-high current and other reasons will lead to the battery short circuit, temperature rise, cause combustion and even explosion. The cause of the fire is collision, short circuit lead to lithium ions precipitation, contact with the air will cause fire, combustion. In addition, lithium-ion battery electrolyte is organic electrolyte, these substances are more likely to catch fire after contact with air.

5, lithium battery electric vehicle supporting problems

According to my investigation and feedback, at present, the motor and other external devices related to lithium battery electric vehicle are not mature enough.

The page contains the contents of the machine translation.