Application of organosilicon material in new energy vehicles

The si-O bond is the main chain structure of organosilicon, and the side chain is connected with other organic groups through silicon atoms.The bond energy of Si-O bond in organosilicon is much higher than that of C-C bond, so the thermal stability of organosilicon products is high, and the chemical bond of molecules under high temperature (or radiation irradiation) does not break or decompose.

Therefore, it can withstand high and low temperature, can be used in a wide range of temperature;At the same time, the main chain has no double bond and is not easy to be decomposed by ULTRAVIOLET light and ozone.Due to its special composition and molecular structure, organosilicone material integrates the functions of organic and inorganic materials, and has excellent high and low temperature resistance, weather resistance, electrical insulation and biocompatibility, etc.No other material can match this.

As the power source of new energy vehicles, batteries, in addition to positive electrode materials, negative electrode materials, separators, electrolytes and other battery raw materials that affect their performance, temperature changes, vibrations, and moisture during the driving of new energy vehicles will also change the battery performance. In turn affect its endurance. With its superior performance, silicone materials can help new energy vehicles to better release performance.

Temperature control

The carbonate in the lithium battery electrolyte has a relatively high melting point. Generally, when the temperature is lower than -20°C, the battery cannot work normally; when the temperature is too high, the battery diaphragm will melt and cause a short circuit to cause battery fire and other safety issues. Only by maintaining an appropriate temperature can the battery achieve its best performance.

High-end custom silicone materials can effectively heat the battery pack and cell core, improve the operating temperature of the battery.At the same time, high-end organosilicon materials can form a thermal shield around the cell core in the battery pack, so that when the environment is too cold or too hot, the battery can still operate efficiently.

Durability

During the daily use of new energy vehicles, moisture will cause lithium hexafluorophosphate in the battery to decompose to produce HF, vibration may cause breakage of tabs, etc., and short-circuit the battery. These most common factors may affect battery life.

In this regard, silicone material manufacturers provide a "battery pack exclusive customization" silicone solution solution to protect the durability of the battery.

Insulation

Another challenge for electric car batteries is short circuits and overflows, and the insulation of silicone materials is an appropriate response.

The application of organosilicone in the battery can well protect the internal key electronic devices, cells and busbars, thus avoiding the risk of power surge and battery fire.