What are the advantages and disadvantages of blade batteries?

1, the energy density per unit volume of the battery is improved, which is more than 1/3 than that of the traditional battery.

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

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

4. The battery is light in weight, so the energy consumed to overcome its own resistance is reduced, and the battery life is further increased.

5. Better safety performance.

Disadvantages of blade battery

1, poor charge-discharge performance at low temperature. This is an "occupational disease" in lithium ferrous phosphate, and the battery capacity will be greatly reduced under cold conditions in winter. The lower limit of low temperature in lithium ferrous phosphate is -20℃, while ternary lithium battery can reach -30℃. The low temperature attenuation of lithium ternary is about 10%, and the low temperature attenuation of lithium ferrous phosphate reaches 20%.

2. It is difficult to repair the battery after being collided. Because the blade battery saves the structure of supporting the battery cells, each battery cell itself is a bracket. It is difficult to ensure the integrity of the battery under the impact of external force. If one battery is damaged, other batteries in series will also be affected.