What is a manufacturer of soft pack lithium batteries?
As a type of power battery, soft pack battery manufacturers are accelerating their application penetration in the battery field with their own advantages. Based on the development of soft pack battery manufacturers in recent years, many battery companies have begun to actively layout in this field. So what is a soft pack battery manufacturer and what are their advantages?
The so-called soft pack battery manufacturer is a term used compared to cylindrical and square hard shell batteries. Its internal components (positive electrode, negative electrode, separator, electrolyte) are not significantly different from those of square and cylindrical lithium battery manufacturers in terms of price. The biggest difference is that soft pack battery manufacturers use aluminum-plastic composite film as the outer shell. In the event of a safety hazard, soft pack battery manufacturers will only burst and crack at most. Square and cylindrical batteries use metal materials as the casing.
For soft pack battery manufacturers, their advantages in terms of structure, good safety performance, lightweight, large capacity, low internal resistance, and flexible design are gradually emerging, highlighting their position. Generally speaking, manufacturers of soft pack batteries have the following advantages:
1. Good safety: Soft pack battery manufacturers use aluminum-plastic film packaging in their structure. In the event of thermal management loss of control or puncture, the soft pack will provide cushioning space for the battery cells, causing swelling and deformation, ultimately leading to fire or smoke, but without explosion.
2. Light weight and high energy density: Soft pack battery manufacturers are 40% lighter than steel shell batteries of the same capacity and 20% lighter than aluminum shell batteries, so they usually have higher energy density. Currently, the majority of battery companies in China that have exceeded the 300Wh/kg energy density mark adopt soft pack battery manufacturers.
3. Good electrochemical performance and long lifespan: Soft pack battery manufacturers have low internal resistance, which can greatly reduce the battery's self consumption; In addition, the cycle life of soft pack battery manufacturers is longer.
4. The thickness is small and can be made thinner. Ordinary liquid lithium batteries adopt the method of customizing the shell first, and then inserting the positive and negative electrode materials. There is a technical bottleneck when the thickness is below 3.6mm. Lithium iron phosphate and lithium manganese oxide batteries do not have this problem, and the thickness can be below 2.5mm.
5. The price of lithium iron phosphate and lithium manganese oxide flexible packaging lithium batteries with large capacity is 10-15% higher than that of steel shell batteries and 5-10% higher than that of aluminum shell batteries.
