In the safety design of lithium battery PACK, thermal runaway spread is the most difficult opponent to deal. After a cell is out of control of heat, the temperature can soar to hundreds of degrees Celsius within a few seconds. If the heat cannot be effectively isolated, adjacent cell will fail in succession like dominoes.

Aerogel heat barrier material is becoming the key solution to this problem. The thermal conductivity of aerogels is the lowest among known solid materials at present. Due to the air proportion of 99%, aerogels are more and more widely used in thermal protection of new energy batteries.. The domestic R & D team has raised the temperature resistance limit of aerogel heat filter from 650 ℃ to 1300 ℃. After being roasted at 1000 ℃ for 5 minutes, heat filter the temperature of the other side can be controlled below 100 ℃.

For PACK factories, the application of aerogel is not as simple as simply sticking a layer of heat filter. The thickness of the insulation layer, the placement position, and the fit method with cell will directly affect the final heat insulation effect and the overall energy density of battery pack. It is too thick to occupy space and increase weight; It is too thin and the heat insulation effect is not up to standard; The placement position is wrong, and the heat may spread from the side or bottom around the heat insulation layer.

Dongguan Juneng New Energy Technology Co., Ltd. has accumulated more than 10 years of design experience in the application of battery PACK thermal management. Aerogel heat proof mat is one of the core components of thermal runaway protection in PACK safety design.

The engineering logic behind this is that heat barrier material is only a part of system protection. It needs to work together with pressure relief channel design, module structure layout, and BMS temperature monitoring strategy. A supplier that only sells heat barrier material can't solve the security problem of PACK. Only PACK factory with complete thermal management system design capability can give full play to the performance of aerogel.

For equipment manufacturers, evaluate PACK factory when you have the ability to manage heat, you might as well ask a specific question: What is the maximum temperature of the adjacent battery pack in the thermal runaway spread test of your cell, and how long will the whole package become structural failure? Suppliers who can give specific figures are usually more trustworthy than those who can only say "conform to the national standard.

Contact Information:
dongguan Juneng New Energy Technology Co., Ltd.
Contact: Gao Yan 137-5142-6524
email address: susiegao@power-ing.com
address: xinghuiyuan high-tech industrial park, Dalang town, Dongguan city, Guangdong province