What is a soft pack lithium battery? Soft pack lithium batteries, also known as soft pack lithium cells, are actually cells that use aluminum plastic packaging film as the packaging material. Soft pack lithium battery cells use thermal packaging, while metal shell cells generally use welding (laser welding). The reason why soft pack lithium batteries can be thermally packaged is because they use aluminum plastic packaging film as a material. Given this, what are the advantages of a good soft pack lithium battery?
1. High capacity
We know that the space for new energy vehicles is limited, and how to increase battery capacity within the limited space is a challenge that new energy vehicle companies have been seeking to solve. The capacity of soft pack batteries is 10% -15% higher than that of steel shell batteries of the same volume, and 5% -10% higher than that of aluminum shell batteries of the same volume. This means that choosing a soft pack battery for the power battery of new energy vehicles will obtain higher battery capacity, thereby extending the driving range.
2. Lighter weight
The soft pack battery is packaged with aluminum plastic film, which can achieve 40% lighter than steel shell batteries of the same capacity and 20% lighter than aluminum shell batteries of the same capacity, resulting in higher energy density. Using a soft pack battery as the power battery for new energy vehicles can effectively reduce the curb weight of the vehicle. While other technical conditions remain unchanged, it can directly reduce the energy consumption of the entire new energy vehicle, thereby extending the driving range and reducing wear and tear on various parts of the vehicle.
3. Long service life
Data shows that after 100 charging cycles, the soft pack battery can experience a 4% -7% reduction in attenuation compared to aluminum shell batteries. Therefore, the soft pack lithium battery has a high safety factor and a longer service life.
4. Low self discharge capacity
The internal resistance of soft pack batteries is relatively small. Currently, the minimum internal resistance of domestic soft pack battery cells can reach below 35m Ω, greatly reducing the self consumption of the battery and effectively reducing the phenomenon of battery over discharge.
5. Good safety performance
The soft pack battery is packaged with aluminum plastic film, which will not explode like the hard pack battery in case of thermal runaway. The outer packaging can easily expand, and the safety performance is relatively good.
6. Flexible design
Soft pack batteries can be freely paired with battery packs of different sizes and shapes according to customer requirements. Developing battery models is relatively simple and can be customized according to customer market needs to explore new battery cell models.
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.
