What is the reason for the three-dimensional lithium-ion battery in commercial vehicles?

　　Author ：Iflowpower – Portable Power Station Supplier

At the 100-person meeting in my country, the Division of the Ministry of Industry and Information Technology, Zhang Xiangmu, a lot of words, caught a lot of controversy. He said this: The Ministry of Industry and Information Technology will organize the danger evaluation of the three-dimensional ion battery. Before the evaluation is completed, the three yuan lithium-ion battery passenger cars are included in the new energy vehicle promotion.

In response to such an audio, the electric car hundreds of people will publish a check, saying that hundreds will only one platform, not representing any other party. According to the present report, there are also company leaks today, the relevant management agencies have been suspended by the electric bus of three yuan, but the truth is to be considered. The use of three yuan lithium-ion batteries to commercial vehicles put forward against opinions, the first thing is still for safety considerations.

But why is the three-yuan lithium-ion battery 躺 躺, from the principle. Trimer lithium Vs lithium iron phosphate ternate lithium ion battery is fully called a three-dimensional lithium ion battery, refers to a lithium ion battery using nickel-watery-based three-dollar positive electrode data. This naming manner is based on the positive data of the battery, in addition to this, there is also lithium cobaltate, lithium manganate, lithium phosphate ion battery.

In addition to the distinguishing according to the positive electrode data, it is also possible to distinguish the battery category according to the shape, outsourcing information. Sany-lithium, lithium manganate, lithium iron phosphate can be used in electric vehicles. Said so much lithium, you may be dizzy, but today's protagonist is a three-dimensional lithium-ion battery and a lithium iron phosphate ion battery.

The three-dimensional lithium-ion battery and lithium iron phosphate ion battery are different, and the primary contradictions are gathered in energy density and safety. Three-dimensional lithium ion battery energy density is large, but safety is often suspected. The lithium phosphate ion battery is small, but let's say it is safer.

The difference in safety is still in the positive material. Both of these information will differentiate at the time of arrival, and the three-yuan lithium data will separate from around 200 degrees. Moreover, the chemical reflection of the three-yuan lithium data is even more intense, and the oxygen molecule will be released, and the electrolyte is agilely incinerated under high temperature effect.

Lithium iron phosphate will differentiate at 700-800 degrees, will not open oxygen molecules like three yuan lithium data, not so violent. It is simple to say that it is more simple fire than ferrite data. Pay attention, let's just information here.

From a general trend, the domestic car enterprises have turned to use three yuan lithium-ion batteries, including Beiqi, BYD, Jianghuai, etc. The corresponding supplier is also accelerating the production of the three-yuan lithium-ion battery. For example, Yi Lithium can leak in the half-year newspaper, the second phase plant will first produce a three-dimensional lithium-ion battery.

As for lithium iron phosphate ion batteries, more and more active in electric passenger malls. In November of the previous year, the electric big barracks of the lithium iron phosphate ion battery accounted for 64.9%, and the amount of three yuan lithium-ion battery installed as long as 27.

6%. Instead, in the pure electric passenger mall, the three-dimensional lithium-ion battery is over 76% of the installed volume of November,. The problem is not that the battery is mentioned earlier, only the difference in terms of tric lithium data and lithium iron phosphate data.

And ultimately determine security, is the entire powered lithium-ion battery system. Due to the characteristics of the lithium ion battery, there is a BatteryManagementSystem. The primary feature includes overcharge maintenance (OVP), Overall Maintenance (UVP), Over-Temperature Maintenance (OTP), Overcurrent Maintenance (OCP), etc.

If the battery is hot, you must first ask if the BMS is qualified. Therefore, it is not suitable for the three-yuan lithium-ion battery. The three yuan lithium data is simple, but it does not represent the unsafe of the three yuan lithium-ion battery; the lithium iron phosphate data is not easy to solve, but does not represent the lithium phosphate ion battery is safe.

The security of the power lithium-ion battery is a system problem, not only the original. From the previous pure electric passenger car spontaneous incident, there are three-dimensional lithium-ion batteries, and there is also a lithium iron phosphate ion battery. But the accident does not clarify that a battery is lost, and there are too many factors, and the fuel car is self-ignorant.

In fact, we should pay more attention to how to stop the failure battery monomer damage to other monomers, constrained by the process level, not perhaps all battery monomer consistency at 100%. Li Shujun, General Manager of Zhenhua New Energy, thought that high-energy density data was used, and the firecrackers were still the choice of hand. Therefore, pragmatic practice is to pay attention to module security, and its focus is failure isolation and security maintenance.

Monomer failure is a phenomenon that cannot be guarded, but it can be controlled by the monomer to prevent module failure. Look at it later, if you use a three-dimensional lithium-ion battery to achieve a higher battery life, then there are many other ways to do, such as lightweight, etc., this is a systemic project.

However, if you are constrained in the policy, you will have a ternary lithium-ion battery, and whether these related electric car skills will also face it? The choice of total return, battery type is to match product positioning and skills. If the bus is easy to attack, the three-yuan lithium-ion battery is forbidden to apply on the bus. What should I do with the car? Look, is there any private heart in the country? If you restrain the three-dimensional lithium-ion battery, the biggest beneficiary may be a domestic phosphate ion battery production company.

Due to the Korean battery company's three-yuan lithium-ion battery and take a price route. However, is this maintenance really conducive to domestic electric vehicles and related skills? In fact, skills are capable of handling data natural defects, while the implementation of the principle to intervene skills is worth considering. In the WeChat group of a car engineer, there has been a concept: electric car is not a bad thing, and even earnest is better than the evening.

The key to the problem is not to use which battery is used, but our electric car speed is too fast, thereby bringing a lot of low products, which is true security hazard.