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When it comes to lithium batteries, we all know that some friends ask what kind of battery is commonly used for electric vehicle batteries. In addition, some people want to ask whether electric vehicle batteries are better than lithium batteries or lead-acid batteries. What's going on? In fact, how to distinguish whether electric vehicle batteries are refurbished or not?? Well, the editor will bring you the differences between lead-acid batteries and lithium batteries for electric vehicles. Welcome to refer to and learn.

To answer the question directly, electric vehicles generally use lead-acid batteries. Below are the differences between lead-acid batteries and lithium batteries.

1、 Volume

Lithium batteries are much smaller in size and lighter in weight compared to lead-acid batteries. Under the same model, the weight of lithium batteries is between one tenth and one sixth that of lead-acid batteries.

2、 Lifespan

The lifespan of lithium batteries on the market is generally around 5 to 6 years, which is longer than the lifespan of ordinary lead-acid batteries. Therefore, there is no need to worry about replacing the battery in the short term, unless there is an accident or long-term driving in extreme road conditions. Generally, the lifespan of lithium batteries is still very reliable.

3、 Safety and environmental protection

Based on the principles of both, we can easily find that lithium batteries are safer than lead-acid batteries. When exposed to external impacts, lithium batteries are also difficult to explode, while lead-acid batteries are relatively dangerous. When facing heavy external pressure or severe impacts, they are still quite dangerous. If leakage occurs, lead containing compounds can cause significant pollution to the environment. In terms of environmental protection, lithium batteries are more green than lead-acid batteries and have less environmental pollution.

4、 Performance

The discharge performance of lead-acid batteries at low temperatures is actually quite good. When discharging at temperatures below zero, a voltage above 10V can still maintain a discharge time of more than 90 seconds, while the low-temperature discharge performance of lithium-ion batteries is much weaker. Secondly, there is the high current characteristic. In terms of current lithium battery technology, when the instantaneous current is relatively high, the performance will sharply decline during the process, affecting daily use and even potentially causing accidents.

5、 Cost

The processing technology requirements for lithium-ion batteries are much higher than those for lead-acid batteries, and the electrolyte requirements are also higher than lead-acid batteries. Moreover, in terms of electrode materials, the cost of lithium-ion batteries will also be higher. Therefore, in any aspect, the cost of lead-acid batteries will be much lower than that of lithium-ion batteries.

I hope I can help you~

I personally believe that lead-acid batteries are better for electric vehicles than lithium batteries. Generally, lead-acid batteries are used in electric vehicles mainly because of their high cost-effectiveness.

The difference between the two:

Lead acid batteries are hard, resistant to impact, inexpensive, and have the advantage of being recyclable and repairable; But it has a large volume but small capacity, and a short service life.

Lithium batteries have a small, lightweight, large capacity, long service life, and good resistance to charging and discharging. However, their high price and non recyclability pose safety risks.

Advantages of lead-acid batteries:

1. Hard: The leader of Lead Acid has always followed the the Nine Yang Manual principle of "he is strong, the breeze caresses the hills, he is arbitrary, and the moon shines on the river". You can continue to use it with just a little repair, as long as you fall, fight, and fight. It's really easy to support.

2. Cheap: The leader of lead-acid has always been able to dominate electric vehicle batteries, and this reason cannot be ignored. The price is only about one-third of that of lithium batteries.

3. Recyclable reverse repair: Lead acid boss is a unique skill that can be used up and replaced with a new one at an electric vehicle store, minimizing losses. For users, this is a great benefit.

Disadvantages:

1. Large in volume and weight, but relatively short in capacity.

2. The lifespan of lead-acid batteries is relatively short, and they generally operate within 400 cycles of deep charging and discharging.

Advantages of lithium batteries:

1. Lightweight and small in size: Compared with lead-acid batteries of the same capacity on the market, lithium batteries that have been lightweight since childhood have a volume of two-thirds of lead-acid batteries and a weight of about one-third of lead-acid batteries. Lithium batteries of the same volume have a higher capacity than lead-acid batteries, and the decrease in weight increases the range of electric vehicles by about 10%.

2. Long lifespan: Lithium batteries have a deep understanding of health preservation. The average lifespan of lithium batteries is about 4 years, which is about 1.5 times longer than that of lead-acid batteries. They have been charged and discharged more than 500 times, and have no memory during use. They have strong seismic resistance.

3. Good resistance to charging and discharging performance: Lithium batteries have been connected from a young age, allowing them to charge continuously for 48 hours at normal temperatures without accidents such as battery expansion, leakage, or rupture. The capacity remains above 95%. And under a dedicated charger, fast charging and discharging can be performed.

Disadvantages of lithium batteries:

1. High price: The production cost of lithium batteries is high, with expensive equipment and labor costs accounting for about 40% of the production cost. The price is about three times that of lead-acid batteries, but the cost-effectiveness brought by the three times price is not high, giving people a feeling of extravagance and unreality.

2. Non recyclable: Lithium batteries are not recyclable, and if they are worn out, they can only be thrown away or buried in a place. After thousands of years, they will be unearthed as antiques by future generations.

3. Safety hazards: The most important issue is the risk of fire and explosion in lithium-ion batteries, especially when consumers are deceived by unscrupulous merchants without their knowledge, leading to the purchase of low-quality lithium-ion batteries. In electric vehicles, the sealing conditions are not very good, which can easily lead to poor contact due to moisture and other reasons, which may cause potential safety hazards.

In summary, lead-acid batteries and lithium batteries each have their own advantages and disadvantages. If you want to install a reliable and high-quality battery for your car, whether it is lead-acid batteries or lithium batteries, you must first check whether the battery manufacturer is trustworthy and whether it is produced by a legitimate manufacturer like Jingqiu.

What are the advantages and disadvantages of lithium batteries and lead-acid batteries in electric vehicles

Lead acid battery

Among them, lead-acid batteries have the highest quantity. The price of lead-acid batteries is the lowest and most commonly used, with China being the world's largest producer of lead-acid batteries. It contains relatively few pollutants and has good recyclability. The disadvantage is that the specific volume is small. That is to say, at the same capacity, the weight and volume of the battery are both large. The current lead-acid batteries are basically developed from float type batteries. Float batteries are not suitable for fast charging and high current discharge. Although technicians have put a lot of effort into effective improvement and can be put into practical use, their lifespan is still very unsatisfactory.

Colloidal batteries belong to a development classification of lead-acid batteries. The simplest method is to add a gelling agent to sulfuric acid to make the sulfuric acid electrolyte gelatinous. Batteries with a colloidal state of electrolyte are commonly referred to as colloidal batteries. In a broad sense, the difference between colloidal batteries and conventional lead-acid batteries is not only in the change of the electrolyte to a gel like state.

For example, non condensable solid aqueous colloids belong to colloidal batteries in terms of electrochemical classification structure and characteristics. For example, the attachment of polymer materials in the grid, commonly known as ceramic grid, can also be regarded as the application feature of colloidal batteries. Recently, a targeted coupling agent has been added to the electrode plate formula in the laboratory, greatly improving the reaction utilization rate of the active substances in the electrode plate. According to non-public information, it can reach a weight specific energy level of 70wh/kg. These are examples of industrial practice and the application of colloidal batteries that need to be industrialized at present.

The difference between colloidal batteries and conventional lead-acid batteries has evolved from the initial understanding of electrolyte gelation to the study of electrochemical characteristics of electrolyte basic structures, as well as the application and promotion in grids and active substances. Its most important feature is to manufacture higher quality batteries with lower industrial costs along the 150 year old lead-acid battery industry path. Its discharge curve is straight, with a high inflection point, and its specific energy, especially power, is more than 20% larger than conventional lead-acid batteries. Its lifespan is generally about twice that of conventional lead-acid batteries, and its high and low temperature characteristics are much better.

Lithium ion battery

The specific capacity of lithium-ion batteries is better than nickel hydrogen batteries. For lead-acid batteries of the same capacity, the weight of lithium-ion batteries is equivalent to a laptop, so that people of all ages, women, and children can use them. Its lifespan can also be better than nickel hydrogen batteries. Currently, most mobile phone batteries use this type of battery. The internal resistance of lithium batteries is relatively high, and when used on electric bicycles, there may be a feeling of insufficient power when the battery is about to fully discharge. The main problem with lithium-ion batteries is that they can explode during overcharging and over discharging. Mobile phone batteries are all single cell batteries, and when used in conjunction with good protective circuits, the problem of battery explosion is basically eliminated. When used on electric bicycles, it is necessary to use a series of connected battery packs, and the complexity of the protection circuit of the series connected battery pack far exceeds that of a single battery, and its material cost also greatly increases. At present, the cost of a good lithium battery protection circuit is close to the price of the battery itself. The explosive killing power of polymer lithium batteries is lower than that of lithium-ion batteries, but there is also a possibility of explosion and combustion. This is also a problem that needs to be solved, just like lithium-ion batteries.

Is lithium-ion battery or lead-acid battery better for electric vehicles

Lithium batteries are relatively lightweight, but there are significant issues. I bought the Super Wei 48V12A lithium battery on JD.com in May last year. At the beginning, it was pretty good, with 80% of the remaining power after a 30 kilometer trip. Because I take good care of it, I charge it as needed and try to keep it fully charged. But around half a year, the power began to decline significantly, and now when fully charged, it can only run 30 kilometers at a time, which is worse than lead-acid batteries! And the one I bought is still a super powerful lithium battery, from JD.com, it shouldn't be a fake! Lithium batteries, like the currently hyped lithium iron phosphate batteries, may have several hundred or thousands of individual cycles, but when combined, it's hard to say. If one battery fails, the entire set of batteries will be affected, and I don't think any domestic manufacturer can guarantee the stability of lithium battery packs, which is why there will be a significant decline in power after six months. I personally think it's not necessary and it's best not to buy lithium batteries, especially when buying them online. If there are problems, they will cause a lot of trouble. The technology of lithium batteries is still not mature enough.

The difference between lithium-ion batteries and lead-acid batteries for electric vehicles:

A lead-acid battery is composed of a positive electrode plate (lead dioxide PbO2) and a negative electrode plate (sponge like pure lead Pb) immersed in an electrolyte, which is an aqueous solution of sulfuric acid (H2SO4). When the battery and load are connected and discharged, both PbO2 on the positive electrode plate and Pb on the negative electrode plate become PbSO4, and the H2SO4 in the electrolyte decreases, resulting in a decrease in relative density. Change in the opposite direction during charging: PbSO4 on the positive electrode plate is reduced to lead peroxide PbO2; The PbSO4 on the negative electrode plate is reduced to fluffy Pb; The increase in sulfuric acid in the electrolyte leads to an increase in relative density.

The comparison of batteries for electric vehicles is as follows:

Lithium battery lead-acid battery

1. Rechargeable battery

2. Cycle service life (500 to 400 times)

3. Specific energy (150W · h/kg -40W · h/kg)

4. Charging time (2-4h -6-8h)

5. Discharge energy efficiency (lithium battery discharge efficiency can be greater than 90% - lead-acid battery discharge efficiency is over 80%)

6. Price (Higher 24V/10Ah price: around 700 yuan - Lower 24V/12Ah price: around 200 yuan)

7. Volume (The volume of a small lithium-ion battery is two-thirds of that of a lead-acid battery - larger in volume)

8. Weight (lightweight only 1/3 to 1/4 of lead-acid batteries - heavy)

9. Range (For batteries of the same specification, as lithium batteries are composed of multiple batteries, although individual discharge efficiency is high, overall efficiency decreases, so the mileage of the two types of batteries is on par)

10. Pollution during production and use (Pollution during production - lead-acid batteries contain a large amount of lead and acid, which, if not properly disposed of after disposal, will cause environmental pollution).

11. Discharge (susceptible to damage from deep discharge and short circuit - susceptible to damage from deep discharge)

12. Charging and maintenance (complex, high maintenance cost - simple, low maintenance cost)

What are the differences between lithium batteries and lead-acid batteries in electric vehicles

1. Different principles

Lead acid batteries are a type of battery that can store limited electrical energy and be used in suitable locations. Its working principle is to convert chemical energy into electrical energy. Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and non-aqueous electrolyte solutions.

2. Different prices

The price of lead-acid batteries is relatively cheap, and compared to lead-acid batteries, the price of lithium batteries is relatively high.

3. Different safety performance

Compared to lead-acid batteries, lithium-ion batteries have different safety performance, and lead-acid batteries have higher safety.

4. Different usage times

Compared to lead-acid batteries, lithium batteries have a relatively longer lifespan.

5. Different chemical properties

The chemical properties of lithium metal are very active, making the processing, storage, and use of lithium metal highly demanding of the environment. So, lithium batteries have not been applied for a long time.

6. Different temperature tolerance

The common working temperature for lithium batteries is -20 to 60 degrees Celsius. However, generally, when the temperature drops below 0 ℃, the performance of lithium batteries will decrease, and the discharge capacity will correspondingly decrease. Therefore, the working temperature for lithium batteries with complete performance is usually 0 to 40 ℃. The working temperature of lead-acid batteries is generally required to be between 20 ℃ and 25 ℃. When it is below 15 ℃, its discharge capacity decreases.

The difference between lithium-ion battery electric vehicles and ordinary electric vehicles

Generally speaking, there are several aspects to compare (lithium batteries and lead-acid batteries (i.e. ordinary electric vehicle batteries):

1. Weight: Lithium batteries are lightweight, while lead-acid batteries are heavier. Vehicles using lithium batteries are generally lighter and more convenient to use;

2. Price: Lithium batteries are relatively expensive, while lead-acid batteries are relatively cheap. Generally, the price of lithium batteries with the same capacity is four times that of lead-acid batteries, resulting in higher replacement costs in the future;

3. Lifetime: In theory, the lifespan of lithium batteries is longer than that of lead-acid batteries (under normal circumstances), but now the development maturity of lithium batteries is much worse than that of lead-acid batteries, and there are few stable products produced in batches by enterprises;

4. Pollution: Lithium batteries are pollution-free when used, while lead-acid batteries contain lead and acid. Improper handling may cause environmental pollution, such as throwing batteries directly into garbage piles (but it seems that ordinary people cannot bear to part with it!);

5. Other: There are many differences, such as charging characteristics, current characteristics, etc., which are not easy for ordinary consumers to elaborate on;

The most important obstacle to lithium batteries at present is their safety - explosion. Although many companies promote their products to be more stable, similar situations continue to occur, including the death of mobile phone batteries from explosions. The capacity of electric vehicle lithium batteries is much larger than that of mobile phone batteries, and the explosive power can be imagined. It is believed that in the near future, lithium batteries will have a large market space after solving safety and price issues.

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