The power battery box is sealed with silicone foam, but its interface is easy to loosen and deform, which will cause the danger of water entering the box. How should silicone companies overcome?
Organic silica gel is widely used in power battery PACK, whether it is heat conduction and heat dissipation, or structural bonding, or box sealing... Although the amount is not much, it is indispensable, and it plays a role in boosting the safety of the power battery box and even the entire vehicle. to very good effect.
Taking Tesla as an example, the silicone product application solution of its model series is a case study of many OEMs and silicone manufacturers in the industry. Behind the competition is the comprehensive manifestation of the contradiction between the low entry threshold of silicone products in the new energy vehicle industry, but the high difficulty of actual supporting requirements.
For example, taking the box seal as an example, silicone foam is widely used in the current new energy vehicle battery pack box seal due to its good hydrophobicity, high and low temperature resistance, and small permanent compression deformation. The specific surface area is small, and the cohesive force of ordinary glue becomes weaker and weaker over time. When new energy vehicles operate in complex actual working conditions and are affected by factors such as high and low temperature, vibration, etc., it is easy to cause the joints to collapse after long-term compression It may even rot, which will cause water to enter the box, which will cause the battery pack to be scrapped, or cause a short circuit, fire and explosion of the battery pack, which will eventually affect the safe use of the vehicle.
About silicone foam, please check the details:
https://www.siliconefoam.net/product-extra-soft-cellular-silicone-iota-bf-1000-.html