Application of protective film in lithium battery industry

In the lithium battery industry, protective films play a key role in protecting the internal structure and functional components of lithium batteries, while improving their safety and performance.

The following are the main applications of protective films in the lithium battery industry:

1. Diaphragm: The lithium battery contains an electrolyte between the positive and negative electrodes, which must be separated from each other to prevent short circuits and electrolyte mixing. A diaphragm is a protective film that sits between the positive and negative electrodes and prevents the flow of direct electrons and ions but allows ion exchange. This helps prevent short circuits and overheating of the battery and improves the safety of the battery.
2. Battery shell protective film: The battery shell needs to be protected to prevent external substances such as moisture, dust, and pollutants from entering the battery interior and affecting its performance. The case protective film can be attached to the surface of the battery case to provide an additional layer of protection.
3. Pole film protection film: the positive and negative electrodes of the battery are usually connected through the pole film, which needs to be protected from the external environment. A protective film can be applied to the electrode sheet to prevent accidental contact between it and the electrolyte.
4. Battery label protective film: Lithium batteries are usually attached with battery information, model, and warning labels. These labels need to be protected to prevent the labels from being damaged or falling off, thereby preventing users from correctly identifying the battery’s performance and precautions.
5. Battery component protective film: During the battery assembly process, various components need to be protected to prevent damage during assembly and transportation. Protective films can be used to protect cell cells, modules, and components of the entire battery pack.

In general, the protective film plays an important role in the protection and safety performance of the lithium battery industry, preventing damage to the internal components of the battery and the impact of the external environment, thereby improving the life, stability, and safety of the lithium battery.

If you are interested in our products, please contact us!