The performance of electrical appliances is exactly the same, except for the different storage capacity and different capacity-to-weight ratio. Lead-acid batteries have a higher weight-to-capacity ratio, while lithium batteries have a lower ratio. The 48 volt 12 amp hour lead acid battery has a storage capacity of 48*12 = 576 watts, and the lithium battery has a storage capacity of 960 watt hours, which is 384 watt hours more than the lead acid battery. acid battery.
The difference between lithium batteries and storage batteries for electric vehicles
Whether it is a lead-acid battery or an acid battery lithium, they have their own advantages and disadvantages, so there is no one that is better. You can only say which one suits you best. After all, everyone's use situation is different. It is recommended that you refer to the benefits and incThe disadvantages of lead-acid and lithium batteries. and combine your actual usage conditions to choose an electric vehicle battery that suits you better. Here are their respective advantages and disadvantages:
Advantages of lead acid batteries:
1. Good safety performance. Lead-acid batteries are easy to maintain. You can knock them over, fix them a little and continue to use them.
2. Cheap price. The price of lead-acid batteries is about 1/3 that of lithium-ion batteries, which shows how low the price is.
3. Recyclable reverse repair. Lead acid batteries are highly recyclable. Once worn out, you can go to an electric car store to exchange them for new ones. You can exchange them for a new set of batteries by paying the price difference, thus minimizing losses. a great advantage for users. Battery lead may alsobe recycled and reused, thereby reducing environmental pollution.
Disadvantages of lead-acid batteries: high weight, limited battery capacity and short lifespan. Lead-acid batteries typically have a lifespan of about three years after 400 deep charges and discharges.
Advantages of lithium-ion batteries:
1: Lightweight and small size. The volume of lithium-ion battery is 2/3 of the volume of lead-acid battery, and the weight is about 1/3 of the weight of lead-acid battery. Lithium-ion batteries of the same volume have a higher capacity than lead-acid batteries. The reduced weight makes electric vehicles lighter and their range is increased by around 10%.
2: Long life. The average lifespan of lithium-ion batteries is about 4 years, about a year longer than lead-acid batteries. It can be charged and discharged more than 500 times. The battery has no memoryand is very resistant to shocks.
3: Resistant to overcharge, good resistance to charge and discharge. At normal temperatures, lithium-ion batteries can be continuously charged for 48 hours without causing expansion, leakage, rupture or other accidents, and the capacity remains above 95%. And with a special charger, it can be charged and discharged quickly.
Disadvantages of lithium-ion batteries:
The production cost of lithium-ion batteries is high, the production equipment is expensive, and the labor costs represent approximately 40% of the production cost. The price is about three times that of lead-acid batteries. At three times the price, it's not great value for money, and it looks rather flashy. Additionally, lithium-ion batteries are not recyclable. Once worn out, they can only be thrown away or buried after thousands of times. years, future generations will notwill not be able to use them. If you dig it up, it will be an antique.
Based on the quality, after-sales service and price of electric vehicle battery products, I would like to recommend some good ones.Lead-acid battery brands: Changxin battery, Shinhwa battery, Mantingfang battery.
Which is better, a lithium battery or a lead acid battery?
The difference between lithium batteries and storage batteries for electric vehicles
The difference between lithium batteries and storage batteries for electric vehicles Batteries are relatively common in our lives. Lithium batteries are used in electric vehicles. There are many batteries and accumulators. You may not know much about batteries. Take a look at the difference between lithium batteries and vehicle storage batterieselectric cells.
The difference between lithium batteries and storage batteries for electric vehicles 1The difference between storage batteries and lithium batteries:
< p> 1. Differences in charging and discharging:(1) The battery has a memory effect and cannot be charged or discharged at any time; it has strong self-discharge and the battery is easily discarded if left out for a period of time; the discharge rate is low and cannot be discharged with high current for a long time.
(2) Lithium batteries do not have a memory effect. The battery can be charged and discharged at any time. Battery self-discharge is low and monthly self-discharge is less than 1%. can be stored for a long time; it has strong power and can be charged and discharged quickly. It can be loaded at more thane 80% in 20 minutes and fully discharged in 15 minutes.
2. Different temperature tolerances:
(1) The operating temperature of the battery should generally be between 20℃-25 Between ℃, when the temperature is lower than 15℃, its discharge capacity decreases, every time the temperature decreases by 1℃, its capacity decreases by 1%. life will be significantly shortened.
(2) The common operating temperature of lithium batteries is -20 to 60 degrees Celsius, but generally when the temperature is below 0 degrees Celsius, the performance of lithium battery will decrease and the discharge capacity will decrease accordingly, so that the performance of the lithium battery is completely. The operating temperature is generally 0-40℃. Lithium battery temperatures required by some particular environments vary, and some pcan even function normally in environments at hundreds of degrees Celsius.
3. The chemical reaction formulas during discharge are different:
(1) When the battery is discharged: Pb(s) negative- 2e-+SO42-(aq)=PbSO4(s).
(2) Lithium battery discharge reaction: Li+MnO2=LiMnO2.
The difference between lithium batteries for electric vehicles and storage batteries 21. Different principles
The storage battery is a type battery. Its function is to convert. Limited electrical energy is stored and used where appropriate. 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 uses a non-aqueous electrolyte solution.
2. Different pricestrong>
The price of batteries is relatively cheap Compared with lithium batteries and storage batteries, the price of lithium batteries is relatively high.
3. Different safety performances
Compared with lithium batteries and storage batteries, the safety performances of the two are different and the safety storage batteries is higher.
4. Different temperature tolerances
Common operating temperatures of lithium batteries are -20 to 60 degrees Celsius, but generally when the temperature is below 0℃, the performance of the lithium battery will decrease and the discharge capacity will be reduced accordingly. Therefore, the operating temperature for the lithium battery to have full performance is generally 0-40℃.
5. Different lifespans
The number of cycles of lithium batteries is generally about 2,000 to 3,000 times, while the number of cycles of storage batteries is about 300 to 500 times, the lifespan of lithium batteries is about five or six times that of storage batteries.
Differences between lithium batteries and storage batteries for electric vehicles 3First point: lithium batteries are lighter than lead-acid batteries
< p> Regarding the differences between lithium batteries and lead-acid batteries In terms of weight, lithium batteries generally weigh around 3.5 kg, while lead-acid batteries weigh around 13 kg. Compared to lead-acid batteries, lithium batteries are lighter. After installation, the weight of the entire vehicle is. heavier than that of lead-acid batteries. Much smaller With the implementation of new nNational standards and clear restrictions on the total weight of electric vehicles, lithium battery electric vehicles have become the first choice to transform for many manufacturers.
Second point: lithium batteries have no memory effect and have a long lifespan
As far as lithium batteries and lead acid batteries are concerned. In terms of memory effect, lithium batteries have obvious advantages, while lead-acid batteries have a memory effect in terms of overall life, number of charge and discharge cycles. lead-acid batteries is about 350 times. The service life is about 2 years, and the number of charge and discharge cycles of lithium batteries is about 900, which means that according to the positive lead-acid battery
Third point: lithium batteries are more polluted than carbon batterieslead.
In terms of overall environmental impact, lithium batteries have much less pollution and environmental impact. than lead acid batteries. Lead-acid batteries contain a large amount of lead and acid and other electrolyte solutions flowing into the environment, causing major pollution of soil and water, and even affecting the overall functioning of the human body. The environmental pollution of lithium batteries is Co. The positive electrode should be lithium cobalt oxide. Cobalt is ranked 27th in the periodic table of elements, behind iron and ahead of nickel. As a transition metal, it has an impact on the environment. but it has no impact on the environment. So large lithium batteries have obvious advantages in environmental protection. However, whether it is a lithium battery or a lead acid battery, itIt is best to hand it over to a group of people who specialize in recycling once the battery has been disposed of. to avoid further environmental pollution caused by improper use.
Fourth point: The price of lithium batteries is higher than that of lead-acid batteries
In terms of overall price, the price of lithium batteries is higher than that of lead-acid batteries. The battery price is higher, but generally lithium batteries can last 4-5 years, while lead-acid batteries' lifespan is about 2 years. The current price of lead acid batteries. on the market is around 450 yuan, while the price of lithium batteries is around 1,000 yuan. In terms of service life and cost, the price advantage of lithium batteries over lead-acid batteries is not obvious. , lithium batteries have a three-year warranty, so choose lithium batterieslithium is the best choice in the long term.
What is the difference between lithium batteries and lead-acid batteries for electric vehicles?
Lead-acid batteries
< p>"Lead-acid battery safety. Judging from the internal structure of the battery, the larger the capacity of the lithium battery, the worse the heat dissipation, which means it is more likely to ignite or explode spontaneously However, lead acid batteries are made of lead plates and have no more capacity than lithium batteries have relatively stable performance and are not prone to combustion. spontaneous or explosion, they are therefore safer »Lead acid battery (VRLA) is an electrode mainly made of lead and its oxide, and electrolyte. It is a battery in solution. of sulfuric acid. In the discharged state of a lead-acid battery, the component primain component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; in the charged state, the main components of the positive and negative electrodes are both lead; sulfate.
The difference between lithium batteries for electric vehicles and lead-acid batteries:
Lead-acid batteries are made of a positive plate (lead dioxide PbO2) and a negative plate immersed in the electrolyte (pure spongy lead Pb), the electrolyte is an aqueous solution of sulfuric acid (H2SO4). When the battery and load are connected for discharge, the PbO2 on the positive plate and the Pb on the negative plate both transform into PbSO4, the H2SO4 in the electrolyte decreases, and the relative density decreases. It changes in the opposite direction during charging: PbSO4 on the positive plate is reduced to lead peroxide PbO2; the PbSO4 on the negative plate is reduced to fluffy Pbx in the electrolyte and the relative density becomes greater;