What are the technical advantages of blade batteries ?

Blade batteryCompared with traditional lithium batteries, the technical advantage is that it is smaller in size, larger in capacity, greatly improved in safety, and does not burn after acupuncture experiments, which can effectively reduce the potential danger caused by external damage to the battery.

design goals. Compared with the traditional battery pack, the volume utilization rate of the "blade battery" has been increased by more than 50%, which means that the cruising range can be increased by more than 50%, reaching a high energy density ternary lithium battery.

of the same level.

Social evaluation. Academician of the Chinese Academy of Sciences.

Ouyang Minggao pointed out that the design of the "blade battery" makes it produce less heat and dissipate heat quickly during short circuits, and evaluated its performance in the "acupuncture test" as "very good".

The "blade battery" product has multi-dimensional safety from electrode materials, cells to battery packs, etc., and has passed the most stringent acupuncture test for battery cells, and can ensure that no deflagration occurs in the extreme case of simulating an internal short circuit in the battery. With a cycle life of more than 3,000 cycles, it can meet the range needs of up to more than 600 kilometers. Torde Energy is also stepping up the research and development of blade battery technology, and the future is promising!

The blade battery was first developed by BYD, and it is also the only manufacturer in mass production. The advantage is that compared with traditional lithium batteries, the volume is smaller, the capacity is larger, the safety is greatly improved, and the battery does not burn after acupuncture experiments, which can effectively reduce the potential danger caused by external damage to the battery.

Improves battery energy density. Safety and portability.

The main thing is that the security is greatly increased.

It can effectively prevent problems such as combustion caused by short circuit.

Blade battery, her technical advantage is manifested in the fact that this battery occupies a very small area, and because he is a blade type, so the capacity inside is particularly large, then in this case compared with ordinary batteries, his advantages are particularly obvious, so it is obvious that the battery has been liked by everyone as soon as it comes out.

The biggest disadvantage of the battery is spontaneous combustion, if there is spontaneous combustion, etc., it will naturally have a great impact on the life of the vehicle and the people on the car, and the blade battery is also through this aspect of the problem, is also overcoming and solving, after continuous testing to obtain the test.

After the blade battery was pierced by the steel needle, no open flame or a large amount of smoke was found, and the surface temperature of the battery was still controlled in the range of 30 to 60 degrees. And for ordinary batteries, after the same steel needle is pierced, there is no open flame, but a large amount of smoke appears, and the temperature on the surface reaches 200 to 400 degrees. At present, the more common ternary lithium battery on the market, after the steel needle is pierced, the battery temperature burns, etc., and the surface temperature reaches more than 500 degrees, and the danger can be imagined.

Blade battery, through high-temperature ceramic technology, in the high temperature resistance of the battery made a high-temperature ceramic coating, for the battery cycle charge life has been improved, it is reported that the cycle life can exceed 4500 times, that is, the mileage life can reach 1.2 million kilometers, which also shows that compared with fuel vehicles, the advantages are naturally very obvious.

Eight major defects of blade batteries:

1. Poor charging and discharging performance at low temperatures. This is lithium iron phosphate.

The "occupational disease, in cold conditions in winter conditions will significantly reduce the battery power. The lower low temperature limit of lithium iron phosphate is -20, while ternary lithium batteries.

It can reach -30. The low-temperature attenuation of ternary lithium is about 10%, and the lithium iron phosphate reaches 20%.

2. The battery is difficult to repair when it is collided. Because the blade battery eliminates the need for support cells.

The structure uses each cell itself as a support. Under the impact of external forces, it is difficult to ensure the integrity of the battery cell. If one cell is damaged, the rest of the cells connected in series will also be affected.

4. The decay characteristics of lithium iron phosphate have not been solved, and the decay is 100km per year.

5. BYD.

The patent on blade technology is greasy, because it takes a long time to apply for a patent, and BYD only took a year.

6. BYD's battery technology innovation does not involve battery electrodes or other important components.

7. The production process is demanding, the cost is high, and there are certain technical barriers, which are less mass-produced in China and not much in application.

8. Phosphorus lease is suspected that lithium iron acid materials do not have energy secrets.

advantages, but it is also a clever way to improve the utilization of space by innovating the structure, and then increase the overall energy density.

Nonsense is about 100 kilometers a year, and labor and management are the owners of the car for two years without significant attenuation.

Blade batteryThe advantages and disadvantages are as follows:

Advantages: small size, light weight, long battery life, the advantages of the blade battery ** in the innovative structure, the blade battery is small in size, light in weight, can bring better space performance for the vehicle, while reducing its own resistance, reduce power consumption, and the cruising range will be further improved.

The volume energy density has been improved, and the cruising range has also been greatly improved, which has reached the same level as ternary lithium batteries.

Equivalent energy level, BYD.

The pure electric range of pure electric models has come to 605km, which is enough to prove the high endurance of the blade battery.

Disadvantages: battery maintenance is equal to replacement, because the blade battery is also a CTP scheme, its battery pack is composed of cells, these cells are not directly placed in the battery pack, but are installed by various connectors and fixed by special glue. This glue used to hold the battery cells firmly in the battery pack can play a certain role in thermal conductivity, flame retardant and cushioning, but on the contrary, it is difficult to disassemble the cells after they are glued together.

It means that it is difficult to repair a battery cell that is broken or collided in the later stage, and the only feasible maintenance method is to destroy the strength of the glue through ultra-low temperature, and then take out the damaged blade cell from the battery pack, but the maintenance technology is still very difficult to achieve, the environmental requirements are high, the cost is high, and it is difficult to apply on a large scale for the time being.

Advantages of blade batteries1. Unit volume.

The energy density of the electric rifting pool increases, which is more than 1 3 more than that of the traditional battery.

2. The cost of materials is reduced by about 1 4, which includes materials and human resources.

3. The battery is small in size, which can bring better space performance to the vehicle.

4. The weight of the battery is light on the first and the closing, the energy consumed to overcome its own resistance is reduced, and the battery life is further increased.

5. Better safety performance.

Disadvantages of blade batteries.

1. Poor charging and discharging performance at low temperatures. This is lithium iron phosphate.

The "occupational disease, in cold conditions in winter conditions will significantly reduce the battery power. The lower low temperature limit of lithium iron phosphate is -20, while ternary lithium batteries.

It can reach -30. The ternary lithium belt has a low temperature attenuation of about 10%, and the lithium iron phosphate has reached 20%.

2. It is difficult to repair the battery after being collided. Because the blade battery eliminates the need for support cells.

The structure uses each cell itself as a support. Under the impact of external forces, it is difficult to ensure the integrity of the battery cell. If one cell is damaged, the rest of the cells connected in series will also be affected.

A blade battery is a miniature button battery, also known as a button battery or a button battery. It is mainly composed of battery cover, battery body and electrochemical reaction data. The advantages and disadvantages of blade batteries are as follows:

Pros:1Small size: Blade batteries are generally only a few millimeters thick, and the diameter is generally not more than 23 millimeters. As a result, it is small, portable, and can be easily installed inside the device.

2.Simple protection: the blade battery does not need protection, has a long service life, and can generally operate continuously for several years, or even more than ten years.

3.Boost function: Compared with other types of batteries, blade batteries have lower internal resistance and higher voltage, which can provide stable high-voltage output to the device without interfering with the device.

4.Low self-discharge rate: Blade batteries have a low self-discharge rate and will not lose power due to long periods of time.

Defects: 1Lack of power: Due to their small size, blade batteries provide less power than other large batteries and cannot support devices that require higher power.

2.Troublesome handling: The blade battery contains metals, chemicals and other harmful substances, and if it is accidentally mixed and discarded or disposed of, it will cause pollution to the environment.

In general, blade batteries are suitable for devices that require less volume and lower power, such as watches, handheld game consoles, mini speakers, etc.

"Blade batteries" through structural innovation, when grouping can skip the "module", greatly improving the volume utilization, and finally achieving the design goal of installing more cells in the same space. Compared with the traditional battery pack, the volume utilization rate of the "blade battery" has been increased by more than 50%, and the lack of rubber means that the cruising range can be increased by more than 50%, reaching the same level as the ternary lithium battery with high energy density.

Advantages of blade batteries1. The energy density of the battery per unit volume increases, which is more than 1 3 more than that of the traditional battery.

2. The cost of materials is reduced by about 1 4, which includes materials and human resources.

3. The battery is small in size, which can bring better space performance for the first and closed of the vehicle.

4. The battery has a light weight, which reduces the energy consumed to overcome its own resistance, and further increases the battery life.

5. Better safety performance.

Disadvantages of blade batteries.

1. Poor charging and discharging performance at low temperatures. This is an "occupational disease" of lithium iron phosphate, and the battery power will be greatly discounted in cold conditions in winter. The lower low temperature limit of lithium iron phosphate is -20, while ternary lithium batteries can reach -30.

The low-temperature attenuation of ternary lithium is about 10%, and the lithium iron phosphate reaches 20%.

2. It is difficult to repair the battery after being collided. Because the blade battery eliminates the need to crack the structure that supports the cells, each cell itself is used as a support. Under the impact of external forces, it is difficult to ensure the integrity of the battery cell. If one cell is damaged, the rest of the cells connected in series will also be affected.

<> "Blade batteries have become a technology brand.

Xu Xingfeng, director of the Department of Market Operation and Consumption Promotion of the Ministry of Commerce, said on the 2nd that the proportion of new energy vehicles in China's new car sales will increase from 1 8 in 2021 to 1 4 in 2022, that is, there will be 1 new energy vehicle in every 4 vehicles in new car sales.

The State Council Information Office held a press conference on the same day to introduce China's business situation in 2022. Xu Xingfeng introduced at the press conference that automobiles are one of the "four King Kongs" for consumption. In 2022, China's new car sales will be 10,000 units, with a year-on-year increase in the same town, ranking first in the world for 14 consecutive years.

Among them, the performance of new energy vehicles is outstanding, and domestic sales have nearly doubled, with a growth rate; Export sales increased by more than 1 times, with a growth rate.

The New Energy Vehicle Industry Development Plan (2021-2035) proposes that by 2025, the sales volume of new energy vehicles will reach about 20% of the total sales of new vehicles. Xu Xingfeng said that this proportion has now been reached, and this goal has been achieved three years ahead of schedule.

When it comes to stabilizing and expanding automobile consumption, Xu Xingfeng said that the first is to stabilize the consumption of new cars and promote the transformation of automobile consumption from purchase management to use management; The second is to support the consumption of new energy vehicles, and guide all localities to further optimize the use environment in various aspects such as license plates, charging, and traffic; The third is to continue to expand the circulation of second-hand cars, accelerate the construction and improvement of the national second-hand car information query platform, and revise the "Measures for the Management of Second-hand Car Circulation" to make vehicle information more transparent; Fourth, smooth automobile scrapping and updating, revise the Lingpi Weishan motor vehicle scrapping management regulations, improve the scrapped motor vehicle utilization system, and encourage qualified places to carry out car trade-in.