Are lithium battery electric vehicles any good? It depends on the specific model and configuration. We cannot generalize. Regarding the detailed description of the problem by the interlocutor, the answer is as follows:
1. Regarding the comparison between the cruising range of lithium batteries and that of batteries lead previously used.
Under the same conditions, theoretically speaking, as long as the capacity and rated voltage of the lithium battery are equivalent to that of the lead-acid battery, the mileage will be the same on the same section of road and in the same driving conditions. Compared with the above, lithium battery electric vehicles are superior or equal to lead-acid battery electric vehicles. The reason is that the chassis of most lithium battery electric vehicles is about 20% lighter than that of electric vehicles.es lead-acid battery, and that the battery is 30% to 60% lighter (depending on the cell material). The load is reduced and the mileage is naturally longer.
Specific analysis is required in real use. The most commonly used materials in lithium batteries are cobalt-lithium, manganese-lithium, ternary lithium, and iron-lithium. The use of lithium-cobalt is gradually decreasing, let's leave that aside.
Performance at different ambient temperatures: When used in winter, the performance of lithium manganese and ternary lithium is zero; better than that of lead acid batteries. Iron and lithium are basically equivalent to lead-acid batteries at around minus 15 degrees Celsius. In the other three seasons, the performance of lithium batteries is better than that of lead-acid batteries.
Comparison of lifespane: Under full/discharge conditions, the life of lithium manganese is 500 times, that of ternary lithium is 1000 times, and that of lithium iron is 2000 times. Lead acid battery 350 times. If we look at the years of use by most people, the order is lithium manganese battery for 2 years, Sanyuan battery for more than 3 years, lithium iron battery for more than 5 years, and battery lead for a year and a half. . (No need to talk about those who run express delivery or deliver fast food. Your frequency of use and mileage cannot be compared to ordinary people, so don't enter into the discussion)
< p> As for the comparison in terms of money, except for iron-lithium Except for the performance-price ratio comparable to that of lead-acid batteries, other lithium batteries fail miserably.
Compared to the commosaid and light when charging, all lithium batteries beat lead acid batteries. Our compatriots understand this very well.
2. Regarding charging and security issues.
The problem mentioned in the question that lithium batteries need to be charged frequently is a false proposition. I would like to ask which electric car can keep driving for a long time without recharging after being charged once? If you want to charge it as soon as you use it, this will extend the life of the lithium battery and save you money. If it's inconvenient, just spend more money. For lead acid batteries, charging them as soon as they are used until the green light comes on and then stopping charging will also extend their life. If you don't understand or half understand, don't make excuses: let me ask you a question: when uno one works alone, should she work until she is almost exhausted then rest, or should she work for a while then rest. Which one has a long life?
As for the safety issues, they are all related to the charger, protective board, cell quality, materials, packaging process, environment of use and collisions. The safety of using iron-lithium and manganese-lithium and lead-acid batteriesIn fact, ternary lithium is almost the same.
3. Regarding performance and price. As mentioned earlier, lithium iron is the most cost effective and has a long lifespan. Performance dipped in winter, but when the weather warmed up, it returned to full health. I have never driven a new national standard lithium battery electric vehicle, so I can't talk nonsense. However, the two electric vehiclesTwo wheels I use both use lithium batteries. One of them is a 48V12AH lithium iron transformed lead-acid battery electric vehicle. I have been using Lianmaoer for 8 years and I can still run 25 kilometers. Do you think this is a good deal or not?
I recently bought a Luyuan brand national standard electric bicycle, 48V24A lithium battery, 3899 yuan. The price is relatively expensive, the battery alone costs around 1,600 yuan. The first charge after purchase took about 7 hours. Once fully charged, I drove over 40 kilometers intermittently in 22 days (using an odometer). It is always powered and can travel around 50 kilometers without any problems. Since the speed limit is 25 kilometers, electricity consumption is relatively low. If you use it daily, the mileage may be higher because it uses electricity without leaving it there.The battery weighs 9.8 kg and can be taken home for recharging. The advantage is that it accelerates faster while driving and has better hill climbing ability than my original car with lead acid batteries. This lithium battery is a special support battery for Luyuan Yadi Emma. It does not generate heat when charging (the charger is very hot) and is relatively safe.
Please read the “Instruction Manual” and do not modify the vehicle without authorization.
I was previously confused about this question and didn't know how to choose. Now that I have used both lithium battery vehicles and lead acid vehicles, I can tell you about their characteristics. The main advantage of lithium batteries is that they are lightweight and easy to charge. It is the best choice for users who live in apartment buildings. As for power and lifespane of the battery, there is no significant difference between the two batteries in hot weather. But during the cold winter season, when the temperature is below 10 degrees, the power of lithium batteries attenuates more significantly than that of lead-acid batteries. If fully charged, the lithium battery will lose about half its power and the lead-acid battery will lose about a third. Therefore, in winter, lead-acid batteries are more durable than lithium batteries. Other situations should be easy to understand. How to choose depends on the actual usage needs. Personally, I think it is better to choose lithium batteries.
Lithium batteries are certainly better than lead-acid batteries and are characterized by good safety performance.
Lithium batteries are good, but they are not safe. These are essentialLithium batteries catch fire when charging.
Dear, you don't actually need to change the car, just change the battery. I can tell you from personal experience that 7 years ago I made a set of 4830 lithium iron phosphate batteries using grade B cells produced by the company I worked for at the time, and they only ended this year. Note that this is product B, lithium iron phosphate. If it is Grade A lithium iron phosphate, it may be able to be used for a longer period. Considering the safety concerns, there is no difference in the choice of iron and lithium phosphate. Lithium manganate may also be considered. For example, lithium manganate from Phylion Power is very good. Three yuan, hum, there is a risk of catching fire, even if it's a one in ten thousand chance, it's a story ifIt happens to others, but it happens to you. It's an accident.
Need experience!
Advantages:
① Great thrust-to-weight ratio. That is to say, at equal power, lithium electric vehicles are lighter.
②The mass-energy ratio is low. That is to say, for batteries of the same quality, lithium batteries are lighter.
③ Large capacity. That is to say, for batteries of the same quality, lithium batteries have a longer lifespan.
Disadvantages:
①High cost
②Complex management circuit < /p>
③A single failure in the battery will cause the entire battery to become unavailable
Very good
Chaowei batteries are good.
If the battery is damaged, replace it with a reusable battery; a reusable battery is a premium batteryfloor which is returned to the factory after it is usually damaged. two batteries in a group are damaged, the manufacturer will return the first stage battery to the factory. It is formed by removing defective batteries from the factory, adding one or two good batteries and reassembling them.
Safety Risks:
Compared with Jinchaowei ordinary moped battery (sealed lead acid battery for electric moped)
1. -Acid battery for power assist is a new type of battery developed according to industry standards.
2. This series of products has the characteristics of excellent high current discharge performance, low self-discharge, high specific energy and long service life.