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Compared with cylindrical lithium batteries, which one is better than soft -pack lithium batteries?

10-122023
Author : BATTSYS

The lithium -ion batteries on the market are mainly divided into three categories, namely square lithium batteries, cylindrical lithium batteries and soft bag lithium batteries. Among them, square lithium batteries and cylindrical lithium battery shells are made of hard shells such as aluminum alloy and stainless steel, and the shell of soft bag lithium batteries is made of aluminum plastic film, which is also their essential difference.

Most people use lithium -ion batteries to be cylindrical lithium batteries and soft -bag lithium batteries. So which one is better and more suitable for power batteries? Today I will talk about their differences and comparisons, and I hope it will be helpful to my friends.

First talk about the advantages of soft -pack lithium batteries:

Good safety
Soft bag battery electrolyte is a solid or colloid, and the leakage is rarely occurred. In the state of high temperature and high pressure, the soft bag battery will not explode like other hard shell batteries, but the drums are cracking.

Light weight
At the same capacity, the weight of the soft -pack lithium battery is 40%lighter than the hard shell cylindrical battery, and 20%lighter than the aluminum cylindrical lithium battery.

Large battery capacity
Soft bag lithium batteries save 20%of volume, 50%higher than the capacity of steel shell-shaped batteries with the same size, and 20-30%higher than the aluminum cylindrical lithium battery.

Good circulation performance
The loop life of soft-pack lithium batteries is longer, and 100 times are 4%-7%less than passenger batteries.

Small internal resistance
The internal resistance of the soft -pack lithium battery is smaller than other lithium batteries, which greatly reduces the self -consumption of the battery.

Flexible design
The soft -pack lithium battery can customize the shape according to the needs of the user, which can be thinner.

Light and easy to carry
Compared with other hard -shell batteries, soft -pack lithium batteries are more suitable for application areas that are portable, highly required to have high space or thickness, such as 3C digital.

Power battery demand
Although cylindrical lithium batteries have high capacity, soft -bag lithium batteries have obvious advantages in energy density, and they are more in line with the demand for power power supply of new energy vehicles.

Others
Although the cylindrical lithium battery has a high single capacity and a large energy density advantage, due to the small capacity of the monomer cell, the battery PACK of the same capacity must be more battery cells.

In general, the advantages and disadvantages of soft -pack lithium batteries and cylindrical lithium batteries are as above.



Guangzhou Battsys Co., Ltd (NEEQ:837375), was founded in 2006, which is a join-stock high-tech enterprise engaging in ODM and OEM , specially for customized and diverse research&production of lithium-ion battery,BATTSYS annual production capacity is tens of millions battery cells. The products are exported to dozens of countries & regions such as Europe, America & Asia etc.


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