Aerogel Thermal Insulation in New Energy Vehicles
2018-04-18 17:25:54 From: Tradematt-Aerogel
In the field of new energy vehicles, frequent fires and explosions of electric vehicles caused by lithium-ion battery “thermal runaways” are frequently reported. How to effectively guarantee the heat dissipation and safety of a moving lithium battery has also become a focus of work for vehicle manufacturers and power battery companies.
Lithium batteries currently have a wide operating temperature range of -20°C to 60°C. In the low-temperature environment, the cruising range of electric vehicles will be significantly reduced, and even more than half of the mileage will be lost. Even charging for “cold” batteries is a difficult task. If the temperature is below zero degrees Celsius, the mileage of electric vehicles will even be reduced by 30% compared with normal conditions.
In addition, if the temperature of the battery is too low, it will affect the performance of the regenerative braking system. However, if the regenerative braking system inputs too much power to the car battery, it will damage the battery at low temperatures.
Aerogel Thermal Insulation, due to its low thermal conductivity, good insulation effect, Class A fire performance, thin thickness, light weight, and ease of use, can solve the problem of too low battery pack temperature for new energy vehicles. Only need 1/5~1/3 thickness of traditional materials to achieve the same insulation effect, save more valuable space for limited space battery pack, the same thickness of insulation effect is more durable than traditional materials, very good solution to cold winter, With the drop in new battery pack battery life, Aerogel Thermal Insulation can increase power efficiency while extending battery pack life.
Under high temperature conditions, if there is no suitable heat dissipation scheme, there will be large differences in the temperature inside the battery pack, affecting the consistency of the battery cells and causing a series of follow-up problems. One of the more serious problems is that the battery overcharge causes "thermal runaway," which in turn causes the electric car to catch fire and explode.
The Aerogel Thermal Insulation itself has a class A fire protection function. When a new energy vehicle fires due to “thermal runaway”, the aerogel insulation material can also play a very good thermal protection function, earning more passengers to escape or extinguish the fire. Time, and then reduce the loss.
To sum up, electric vehicles with good battery temperature control and electronically controlled performance can make the car cool in winter, cool in summer, safer, and have strong endurance and long service life; those that do not use Aerogel Thermal Insulation have poor thermal management. In winter, there will be cases of "sickness", and in the summer there will be the possibility of "explosion at any time."