What is the function of the lithium battery rubber seal at the interface between the battery cover and the casing?

Lithium Battery Rubber Seal's key role in battery design is reflected in its multiple roles at the interface between the battery cover and case. This key position in the battery structure not only involves the separation of liquid electrolytes inside and outside the battery, but is also an important part of the safety, stability and overall performance of the battery.

First of all, the Rubber Seal is located at the interface between the battery cover and the case. It plays a key role in the boundary between the liquid electrolyte inside and outside the battery. The liquid electrolyte within the battery is necessary for the lithium battery to function properly, but in order to prevent it from leaking to the outside of the battery, the Rubber Seal acts as an important protective barrier. Leakage of liquid electrolyte will not only lead to a decrease in battery performance, but may also cause safety hazards, so the existence of Rubber Seal is crucial.

Secondly, the role of Rubber Seal at the interface between the battery cover and the casing is also to prevent gas leakage. During the charging and discharging process of the battery, gases will be generated, and Rubber Seal effectively prevents these gases from uncontrolled leakage to the external environment. This not only helps maintain the gas pressure inside the battery, but also reduces the possibility of harmful substances in the outside air entering the battery, thereby ensuring the stability of the battery under various working conditions.

In addition, the importance of Rubber Seal is also reflected in its isolation from the external environment. The battery cover and case interface are easily invaded by pollutants such as dust and moisture in the external environment, and the presence of Rubber Seal effectively isolates these external pollutants. This helps maintain cleanliness and purity inside the battery, preventing contaminants from affecting battery performance.

Maintaining sealing is another important responsibility of Rubber Seal in battery design. The battery cover and case interface is a key sealing point of the battery, and Rubber Seal effectively maintains the overall sealing of the battery through its elasticity and corrosion resistance. This is particularly critical under different operating temperature and pressure conditions, as maintaining a tight seal helps prevent the leakage of gases and liquids, improving battery safety and reliability.