What is the close relationship between Silicon gel and lithium batteries in new energy vehicles?

Lithium-ion batteries caught fire or exploded in new energy car accidents. There are two ways to reduce the number of such accidents. One is to change the lithium battery itself. The other is to use liquid silica gel as a sealing material to prevent fire and flame.

Liquid silicone filling and sealing gel is mainly used in the lithium battery pack link, which plays a role in heat conduction, heat dissipation, equilibrium temperature, flame retardant explosion, insulation and waterproof, etc.. Organosilicon is seen as a "new hope" for improving the safety of power batteries. The thermal conductivity of liquid silica gel can achieve more than 2, flame retardant up to UL94V0, waterproof is not to mention, very good! It is very suitable for filling.

However, liquid silicone filling and sealing glue also use its disadvantages, that is, the proportion is large, the battery pack will be aggravated, reducing the energy ratio per unit volume, and eventually affecting the energy density.

At present, organosilicon products are still facing two major promotion problems in the lithium electricity market: First, how to achieve lightweight requirements. Although the density of Silicone's technology products is already very low, its application in battery packs will still increase the overall weight of battery packs by 5-8 %; Second, lithium-ion battery enterprises are not aware of organosilicon. Lithium battery enterprises in China do not know much about the choice and use of organosilicon products, and blindly selecting organosilicon products is difficult to achieve the expected results, thus losing confidence in organosilicon products.

It can be said that the task of reducing the weight of organosilicon in the power cell is a problem that needs to be solved in the current organosilicon industry, and it is also the key to improve its market utilization rate.

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