Introduction to Soft-Packed Polymer Battery Cell Materials

The raw materials for polymer battery cells mainly include lithium cobalt oxide, lithium manganese oxide, and lithium ternary oxide, etc. 

Depending on different application scenarios and performance requirements, the ratios of these materials will vary. Here are some 

common ratio situations and related analyses: 

  ●     Conventional power-type polymer battery cell: 

         ●     When the ratio of ternary materials (nickel cobalt manganese oxide) is relatively high, for example, the ratio of nickel, cobalt 

and manganese is approximately 5:2:3 or 6:2:2, the energy density of this polymer battery cell is higher and the output power is greater. 

It is suitable for electronic devices with high power consumption and high power output requirements, such as mid-to-high-end smart 

phones, tablets, laptops and other mobile electronic devices. However, the cost of this battery cell is also relatively high.

         ●     If the proportion of lithium manganate is relatively increased, the proportion of the ternary material will decrease accordingly. 

While maintaining a certain energy density, this can help reduce costs. Moreover, the thermal stability of lithium manganate is relatively 

good, which can enhance the safety performance of the battery cell. This type of polymer battery cell is often used in some electronic 

devices that have certain requirements for cost and safety, such as ordinary power banks, etc.

●     High-security polymer battery cells:

         ●     The main component is lithium manganate, accounting for up to 60% or even more, while the proportions of lithium cobalt 

oxide and ternary lithium are relatively lower. Lithium manganate has good thermal stability and safety. This type of polymer battery 

cell with this ratio is used in scenarios with extremely high safety requirements, such as some special medical equipment and security 

devices. However, its energy density and power performance will be somewhat reduced.

●     Long-range polymer battery cell:

         ●     Appropriately increase the proportion of lithium cobalt oxide, while combining it with a certain proportion of ternary lithium 

and manganese oxide. Lithium cobalt oxide has a high specific capacity and good cycling performance, which can provide a longer 

driving range. This proportioned polymer battery cell is suitable for devices with high requirements for driving time, such as some 

high-end drones, electric tools, etc.  

It should be noted that the ratio of the source materials for polymer battery cells is a complex technical issue that requires comprehensive 

consideration of various factors such as the performance requirements, cost, and safety of the battery cells. Moreover, in the actual 

production process, a large number of experiments and tests need to be conducted to determine the optimal ratio scheme.