The development of battery technology has always been regarded as a key ring to achieve breakthroughs in new energy vehicles, as this is related to two major problems concerning consumers: life and security. Migrant cars also want to develop a battery that is safe, no milestable. Unfortunately, the current two major battery schools: lithium iron phosphate and three yuan, can not be perfect.
Lithium iron phosphate battery is indeed known for safety, but it can be low energy density, poor battery life, and low temperature resistance, and the winter loss is obvious. The three-dimensional lithium battery, the energy density is high, and the mileage is reduced to mileage. It is almost impossible to safely. Those new energy cars caught fire, most of them are equipped with a ternary lithium battery.
From the perspective of market selection, iron phosphate battery is still very popular with the advantages of safe and low cost. However, as the policy puts higher requirements for battery energy density, three yuan lithium began to rise, and now it can be said to be half-waters.
1. BYD “blade battery”, poke in three yuan lithium battery pain points
March, BYD blade battery official Publishing, substantial is a lithium iron phosphate battery, but structural innovation has been made to a certain extent, and the weak energy density is overcome, and the single charging can meet 600 kilometers of battery life. Moreover, it also passed the harsh puncture test, compared to ordinary lithium iron phosphate and three-dimensional lithium batteries, it is safer when they are puncture, and will not smoke.
At this point, the BYD blade battery has no noise, and it has stepped on the three-yuan lithium battery, and the pain points of its safety is. According to BYD’s plan, this year’s blade batteries will also be implemented, so that more brand models benefit. In this influence, the market share of the current phosphate battery has a significant increase, quite a momentum of the three-yuan lithium battery.
2. Ningde Times is the “three yuan lithium battery” platform, but it attracts groups 
as domestic power battery faucet Ningde era,It is also the largest supplier of three yuan lithium batteries. When puncture first puncture, the steel needle is broken by the shell of the battery pack, and then it can’t. Some netizens should see the blood spit to: “This is doing steel needle puncture steel plate test”!
The second time it did not take a battery pack case with a plurality of cells, and the two monomer batteries were passed directly and passed. However, since the steel needle does not fully pierce the battery, there is no short circuit required for the experimental purpose, so netizens are also universal not buy.
Subsequently, there is no more than a large netizen who sells experimental equipment and materials. It has come to a “private version of the acupuncture experiment”, and the results show that no matter Ningde. The 5 Series of the Times or 8 Series Sanyuan Lithium Battery. After the acupuncture, there was a violent self-ignition. Although the rigor of the experiment needs to be sophisticated, it brings the effect of the effect, apparently let Ningde Times have lost the “public” war “.
3. Guangzhou “magazine battery” strikes, continue to be a three-yuan lithium is named 
But this is not over, On March 10, 2020, Guangqi Yan released a new generation of power battery safety technology, referred to as “magazine battery”, which is not a new battery, which is the same as the blade battery, which is innovative. Popular point is understood that it is to protect the cell to protect the outer casing similar to “magazine”.
The move is escorted for three yuan lithium, and the Guangzhou Automobile also took it a juncture experiment, and the first experiment of Ningde Times. Take the battery pack with experimental objects, but this time did not have a “broken needle”, not only tied, but also a short circuit.
The experimental process showed that the stabbed battery was thermal out of control, but only short smoke, no fire and explosion. After standing for 48 hours, the voltage drops to 0V and the temperature is restored to room temperature. And only the stab modules are affected, there is no spread to the battery pack.
In the view, Guangzhou Auto or wants to use this: in general, an electric car fires, often by a battery The module is thermal out of control, and then spread to other parts, eventually leading to the entire system even burns. The meaning of the magazine battery is that it controls this risk in local position and does not allow it to “take the whole body”.
The technology of the magazine battery is mainly raised, and the first is to start from the internal material, that is, the optimization of the positive electrode material, the electrolyte, the separator material, Develop a super high heat-resistant and stable battery.
The second is to start from the external protection material, which is manufactured a super-insulating battery safety compartment, and the risk of out of control is controlled within a single compartment, the maximum The degree is a flame retardant and insulation.
The third is to start from the active cooling, that is, a good cooling function. It is reported that the speed-cooled system of the magazine battery can help it increase the heat dissipation area of 40%, and heat dissipation efficiency is thus increased by 30%, effectively blocking thermal spread.
The fourth is the fifth-generation battery management system of the full-time control, in fact, the entire battery system is fully monitored, once the abnormality is found, the first time starts the self-rescue program To kill the risk in the cradle. 
Maybe someone should ask, safely, is there any compromise in other respects? According to Guangqi, the magazine battery is compared to the ordinary ternary lithium battery pack, its volumetric energy density is increased by 9.7%, and the weight energy density is 5.7%, and the cost is 10%. That is, safer, more battery life, and cheaper.
As mentioned earlier, the largest short board of the three-yuan lithium battery is “safe”. If the magazine battery is solved in this hidden danger, it can further exert battery life and price The advantages. At this time, BYD blade battery, is it suddenly not fragrant? [
However, it is to be pointed out that the acupuncture experiment of the blade battery, the Guangzhou-Auto “magazine battery is still there. Very obvious difference is that the BYD blade battery is directly puncture with a single cell at the time, and it is from the bottom. 
BYD “blade battery” puncture
The Guangzhou Auto Magnoli battery is to take the entire battery pack, and it is laterally penetrating. Different test methods, there is a difference in the effect of essence, and it is not known. However, it can be speculated that the tanker lithium battery built in the magazine battery, if a single pick, a big probability cannot live like a blade battery.
Guangqi “magazine battery” puncture 
Guangqi’s results of this experiment, obviously also confident, claiming that this is the first time through three Yuan lithium battery whole package needle can’t get fire test. According to the plan, this year’s magazine battery will be held on the Essenger model.
4. Blade battery and magazine battery, who is more trustworthy? 
One represents the lithium iron phosphate battery, another station quarter lithium battery, who is more advantageous? In the eyes of Nang, the current situation will still be a blade battery. After all, its mass production has been, and the model has been extended from the Han EV to more models, but also expands the external supply channel (according to the Korean media said BYD or will provide blade batteries to modern cars), which is trusted.
However, it faces the challenge, how to continue to increase energy density in the future, and improve anti-low temperature performance? Because the industry generally believes that this is difficult to have a big breakthrough due to the limitations of the lithium iron battery itself. 
As for the mapping battery, you want to get the trust of the market with a juncture experiment, but also time. However, the result of it shows, it does make many people have more expectations for the future of the three-yuan lithium battery. If you are quantified after mass production, you can experience the test of the market, then it will undoubtedly be sought after.
In the face of differentiated market demands, we don’t use anyone who is the future. In the view of the novel, the two battery routes in the long term will intertwined, compete with each other, and the lithium iron phosphate battery is in a direction in which the energy density is increased, and the three-dimensional lithium battery continues to solve safety problems.
When standing at the factory, this is the competition of interest, but standing in our consumer perspective, that is a win-win situation. The future is likely to evolve into a relationship similar to natural inhalation and turbocharging, and everyone only needs to choose from its own taste. 
Write in the last
Whether it is a blade battery or a magazine battery, there is no way to the frame of the traditional battery. If one day, battery technology achieves breakthroughs, can innovate on materials, such as “solid-state batteries” that have been fried in front of them, not only non-flavible, non-corrosive, no volatile, no leakage, etc. It can easily achieve battery life, which may be a real impact on the entire new energy market. Welcome to “the” vehicle domain “, leave a message below, share your opinion on the” magazine battery “and” blade battery “.