It depends on the type of battery you are using. The two commonly used batteries for electric vehicles on the market currently are lead-acid batteries and lithium batteries.
In terms of service life, the lifespan of lithium batteries is longer than that of lead-acid batteries.
Lead-acid battery: Generally, it can be charged and discharged in 400 times, and its lifespan is about three years.
Lithium battery: The average lifespan is about 4 years, about one year longer than lead-acid batteries, and can be charged and discharged more than 500 times.
Whether it is lead acid battery or lithium battery, they have their own advantages and disadvantages, so there is no way to say which is better, I can only say which one is more appropriate. after all, everyone's use situation is different, it is recommended that you refer to the beforeThe advantages and disadvantages of lead-acid batteries and lithium batteries, combined with your actual use, to choose an electric vehicle battery that is more suitable for you. 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. The lead of the batteryie can also be 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. Batteryhas no memory and 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, the genfuture rations will not be able to use them. If you dig it up, it will be an antique.
The safety performance of lithium batteries is compared with lead batteries. Batteries are worse, especially at high temperatures, which are prone to dangers such as fire, spontaneous combustion and an explosion.
Based on the battery product quality, after-sales service and price, we recommend a very good lead acid battery brand: Changxin Battery.
As an old lead-acid battery production group, Changxin Battery has enjoyed excellent reputation and quality and has been praised by the market for many years. As a high-end product among lead-acid batteries, Changxin graphene series adopts more scientific direct connection row structure, improved formula with higher energy density and higher technology content,bringing longer life and longer, more stable battery capacities. performance.
What is the general lifespan of lithium batteries?
The battery specification GB/T182872000 mentions that the lifespan of lithium battery cells is 300 cycles and the capacity is lower. more than 80% of initial capacity; In fact, when it comes to current lithium battery cells, the lifespan is more than 300 cycles. For example, lithium battery cells produced by domestic relatively powerful lithium battery manufacturers Grepu Battery, BYD, Gaoneng, Lishen and other manufacturers have shown that they can be used normally. They can reach 500 cycles.
How long do lithium-ion batteries last?
The lifespan of lithium-ion batteries is generally 3 to 5 years.
Currently, there areTwo main types of lithium batteries used in electric vehicles, namely ternary lithium batteries and lithium iron phosphate batteries. The first has a relatively high cell voltage of 3.7 volts and. the latter The voltage is lower, the voltage is 3.2 volts.
The advantages of ternary lithium batteries are high cell voltage, light weight, high energy density and less influence on temperature. However, the disadvantage is that the number of charging times is relatively small, only about 800 times. . It is very easy to catch fire when damaged by external force and leakage. Battery life is typically 3-5 years. Lithium iron phosphate batteries can theoretically be charged up to 2,000 times and have a relatively long lifespan. However, this type of battery has a fatal disadvantage, namely that it is fgreatly affected by temperature.
Precautions for using lithium batteries
Theoretically, the life of lithium batteries can reach about 500 times after full discharge, but As long as we use them mobile phones, we must Charging will damage the battery. Although the degree of this damage is very small, it is also very objective when accumulated, the battery life can be significantly shortened.
The optimal temperature for storing lithium batteries is 20°C, which can vary somewhat. Generally, air humidity does not exceed 50%. As long as it is not completely exposed to air or water vapor, it will practically not damage the battery life.
However, lithium batteries still have certain storage temperature requirements. Specially treated lithium batteries can workwork in a low temperature environment of -60°C, but ordinary lithium batteries can only work at around -20°C. . , once the temperature is lower than this value, battery power consumption accelerates.
If used for digital products, category 3C, generally 100% DOD is not less than 300 weeks. After fully charging for one week, the battery capacity is considered at end of life if the battery capacity is less than 80% of the rated capacity. The previous GBT18287 had regulations, but the current GB31241 has no lifespan regulations. If it is a power battery, the cycle capacity should not be less than 90% of the initial capacity for 500 cycles, and not less than 80% of the initial capacity for 1000 cycles.
The lifespan of 3C batteries generally can be 500-800 times, but elis limited by cost and is of little importance. Most manufacturers limit it to more than 300 times. In this way, the mobile phone can be used for two or three years without any problems. When it comes to electric batteries, different material systems are different. 2,000 iron phosphorus cycles are common. BYD claims to have reached 10,000 cycles. If it is a lithium titanate battery, 100,000 cycles will be no problem.
Here are the lifespan requirements of the national standard for electric batteries.