At present, there are three pillars of electric vehicle batteries: ternary lithium batteries, lithium iron phosphate batteries and nickel metal hydride batteries. Among them, nickel-metal hydride batteries are the most stable, lithium iron phosphate is the safest, and ternary lithium has the greatest power.
1. Ternary lithium battery
Ternary lithium battery is good in cooperation and has the highest power for the same weight. However, if the items are packed tightly, the temperature will be a little high. Therefore, ternary lithium batteries have very strict heat dissipation requirements. To ensure safety, each battery must have a safety device. Even if heat dissipation is in place, the ternary lithium battery may catch fire and ignite spontaneously once a collision or short circuitis discovered. Moreover, the very popular Tesla uses it, with more than 7,000 ternary lithium batteries. And there are cases of Tesla spontaneous combustion.
2. Lithium iron carbonate battery
It is deeply loved by most automobile manufacturers. Although the power of the same weight is not as good as that of ternary lithium batteries, it has good thermal stability, is not easy to anger, and the cost of heat dissipation parts is much lower. In addition, it has the advantages of high energy density, small size, long battery life and good security.
3. Nickel-metal hydride batteries
Nickel-metal hydride batteries are generally used in hybrid vehicles and their performance is worse than lithium batteries. This type of battery has a very good memory and clearly remembers overcharges.rges and excessive discharges. Therefore, nickel-metal hydride batteries have high requirements for charging and discharging times, and the power must be maintained within a fixed range. Therefore, the electrician recommends that you try to charge it after each use, and fully charge it at the same time. Don't charge it for a while, use it for a while, then recharge it. This is an important point for “prolonging life”.
There is also a type of battery that has high energy conversion efficiency, zero pollution and long life, but it is not cheap, a little expensive and ordinary people can't afford it. This is a hydrogen fuel cell. Additionally, anyone who has studied chemistry knows that hydrogen is flammable if transported or stored in large quantities, the requirements are very high, the risk factor is high and the rThe safety risk is relatively high.
Nowadays, these types of batteries have their own performance shortcomings and advantages. Therefore, car owners who want to buy a car should buy an electric car with the corresponding battery according to their own needs, so that no matter whether it is used, charged or maintained, there will be no problems. major problems and it will not affect your life.
There are several types of new energy electric vehicle batteries
1. Appearance of lithium batteries: square lithium battery (such as commonly used mobile phone battery cells) and cylindrical (such as 18650);
2. Lithium battery packaging materials are divided into: lithium battery with aluminum casing, lithium battery with steel casing, soft battery;
3. and negative electrode materialsive (additives): lithium acid phosphate (licoo2) or lithium manganate (limn2o4) battery, lithium iron phosphate battery, disposable lithium manganese dioxide battery;
Which electric vehicles use lithium batteries h3>
There are three types of new energy electric vehicle batteries: 1. Ternary lithium battery. 2. Lithium iron phosphate battery. 3. Lead-acid batteries. 1. Ternary lithium battery is the most common lithium battery and the one with the largest storage capacity. The disadvantages are that it is expensive and unsafe. Lithium iron phosphate batteries are lithium batteries that have only been gradually popularized in the past two years. The advantages are safety and low cost, but the disadvantages are size and weight, and the stored energy is not as good as that of ternary lithium batteries. Lead acid batteries are the bestmost common, and only older scooters are equipped with lead acid batteries. 2. If new energy electric vehicles want to have a long range, they must increase the battery capacity. Under the same volume, ternary lithium batteries have stronger energy storage capabilities, so most new energy vehicles are equipped with ternary lithium batteries. Only some domestic models are equipped with lithium iron phosphate batteries. 3. Lead-acid batteries are the safest, but lead-acid batteries have the smallest storage capacity, are large in size and weigh the heaviest, so only scooters for the elderly are equipped with lead-acid batteries.
Of course. Current lithium battery technology is very mature. It also depends on the type of lithium battery used.
Currently, the main lithium batteries for electric vehiclesctrics on the market are mainly divided into three types: lithium manganate, ternary lithium and lithium iron phosphate.
Most manufacturers use lithium manganate, such as Giant, Xinri, Yadi and Emma. The lithium batteries produced by these manufacturers are all lithium manganate. The representative manufacturer is domestic Xinheng lithium battery. Ternary lithium is mainly used in foldable lithium electric vehicles. However, I personally do not recommend it because it is dangerous.
The best is the lithium iron phosphate battery. Extremely long life and good cycle times. The lifespan is 2.5 times that of lithium manganate. High current discharge performance is also excellent. The key issue is that security performance is very good. No explosion or fire.
It is incomparable to lithium manganesis and ternary lithium. But lithium ferrophosphate also has its drawbacks. That is to say, the volume is greater than that of manganese, lithium and ternary. Low temperature performance is not as good as manganese, lithium and ternary. However, the impact is not significant in areas where the temperature is not lower than 15 degrees Celsius.