New Energy Vehicle Power Batteries Dissipate Heat, The Use Of Thermal Pad Is Essential

At present, the mainstream electric vehicles on the market use 18650 standard lithium iron phosphate battery power battery packs. 18650 lithium batteries have the advantages of large energy density, good stability, low cost, and high reliability. But 18650 lithium battery also has a very big disadvantage is that it generates heat during work. If the battery working temperature is too high, it will cause the battery to discharge too quickly and affect the battery life. The thermal design of the power battery pack of electric vehicles is the key technology to ensure the reliable operation of the battery.

  The liquid-cooled heat dissipation part of the power battery pack is composed of a liquid-cooled tube and a thermal pad. The liquid cooling pipe includes the internal cooling liquid, which mainly completes the heat dissipation of the heat generated by the work of the lithium battery. The heat of the battery cells is transferred to the liquid-cooled tube through a thermal silicone pad, and the heat is taken away by the free expansion of the coolant's thermal expansion and contraction. The temperature of the entire battery pack is unified. The heat allows the entire battery pack to operate at a safe temperature.

  Sheen thermal pad mainly completes the heat conduction between the battery core and the liquid cooling pipe. Its good insulation performance and high resilience toughness can effectively avoid the vibration and friction damage between cells, and the hidden danger of short circuit between cells. It is a good auxiliary material for the heat dissipation method of liquid-cooled structure of power batteries.