Power battery E series polyimide foam products
Product advantages
Compared with the glass fiber aerogel currently used for this purpose, the power battery E series polyimide foam products have better thermal insulation performance, lighter weight, and easier construction. In addition, the power battery E series polyimide foam products have good resilience and toughness, which can withstand shock and extrusion without breaking, and maintain its own shape. Compared with the aerogel, the aerogel will become powder during vibration and extrusion, thus becoming invalid.
The thermal insulation layer in the figure above uses the power battery E series polyimide foam product as an ultra light thermal insulation material. When the ambient temperature is too high, the cooling channel starts, and the thermal insulation layer insulates the external heat of the battery pack from entering the battery pack, so as to ensure that the battery temperature is within the operating temperature range, maintain the normal operation of the battery, and prevent excessive temperature explosion or excessive temperature from shortening the battery life; When the ambient temperature is too low, the cooling channel is closed, and the thermal insulation layer of the E-series polyimide foam product of the power battery keeps the internal heat of the battery pack from transferring outwards, so as to ensure that the battery temperature is within the operating temperature range, so as to maintain the battery to reach the normal discharge rate, so as to maintain the normal operation of the battery.
Thermal insulation and buffering of power and energy storage battery cells
1. PI foam
The excellent compression resilience of PI foam effectively suppresses battery charging and discharging bulges, prolonging battery life.
2. PI aerogel composite foam
Insulation and buffering scheme for power battery cells of flying cars: density 50kg/m ³, Solve battery lightweighting.
The hot surface is 1300 ℃, and after 20 minutes of battery thermal runaway, the temperature should not exceed 200 ℃, effectively suppressing heat spread and preventing battery ignition.
(1) Power battery liquid cooling plate insulation and shock absorption cotton:
At an ambient temperature of minus 30 ℃, the room temperature drops to 0 ℃ for 9 hours and stabilizes within 24 hours (-25 ℃).
After the thermal runaway of the battery, the cold surface temperature is 60 ℃, effectively preventing the spread of high temperature and fire inside the cabin.
(2) Thermal insulation and fireproof cotton inside the battery pack:
UL94-V0 flame retardant -400 ℃ for 1 hour
Excellent insulation performance in high cold conditions - thermal conductivity ≤ 0.035
High insulation - anti electric arc
OVOC - Meets EU environmental standards.
(3) Power battery casing protection
PI rigid foam plate is bonded around the battery shell to ensure the normal operation of the power battery in the high cold and hot temperature environment. At the same time, when the cell is out of control of heat, it plays a role in heat insulation and inhibiting heat diffusion.
Rigid closed cell foam, Class A0 flame retardant, non absorbent, low thermal resistance, with high strength and excellent fire prevention and thermal insulation performance - to meet the external thermal insulation requirements of the battery pack!
(4)CTC Plan - Top Cover Insulation, Fire Protection, and Thermal Insulation Cotton
√ Environmentally friendly flame retardant, thermal insulation and fire prevention.
√ Intrinsic flame retardant: No flame retardant added, UL94-V0 grade flame retardant.
√ High temperature resistance: 400 ℃ for 1 hour without cracking or burning through.
√ Environmentally friendly and non-toxic: zero VOC, halogen-free, odorless, low smoke, low toxicity.
√ Lightweight: density ≤ 20kg/m ³
