A soft-pack lithium-ion battery is just a liquid lithium-ion battery with a polymer shell. In the structure of the aluminum plastic film packaging, in the occurrence of safety risks in the case of soft pack battery will only burst air.
The advantages of soft pack lithium battery are:


1. Good safety performance


Soft-pack batteries, unlike steel - and aluminum-shell cells, can explode.


2. Light weight


Soft-pack batteries are 40% lighter than steel-case lithium-ion batteries of the same capacity and 20% lighter than aluminum-case batteries.


3. Large capacity


The capacity of soft pack battery is 10 ~ 15% higher than that of steel shell battery of the same size and 5 ~ 10% higher than that of aluminum shell battery.


4. Small internal resistance


The internal resistance of the soft-pack battery is smaller than that of the lithium battery. The internal resistance of the domestic soft-pack battery core can be as low as 35mΩ, which greatly reduces the self-consumption of the battery.


5. Design flexibly


The shape of the soft pack battery can be customized according to customer's needs, and new cell models can be developed.


The laser welding machine of Xinde (Shenzhen) Laser Equipment Co., Ltd. is capable of welding a variety of soft pack lithium batteries, which can meet the diverse needs of customers.