SY-2971 development background

　　As the core component of new energy vehicles, the energy, power and performance of power batteries are directly affected by the operating temperature. If the heat generated by the battery during charging and discharging cannot be effectively managed, it may cause the system temperature to exceed the optimal operating range, thus affecting the service life of the battery. Power batteries are usually equipped with a thermal management system, which consists of three key components: a heat transfer medium, a measurement and control unit, and a temperature control unit. With the introduction of highly integrated CTP and CTC power battery pack technologies, the performance requirements for thermal conductive media have become more stringent, requiring high structural strength and excellent thermal conductivity.

　　It is in order to meet these high standards that Youxingshark Company has launched SY-2971 thermally conductive structural adhesive, which is designed to optimize the thermal management performance of power batteries.

　　SY-2971 Product Description

　　Youxingsha SY-2971 is a two-component thermally conductive structural adhesive that cures at room temperature and is suitable for automated production. This product has good mechanical properties and reliable bonding; it has good vibration and impact resistance; it has excellent high and low temperature resistance and aging resistance; it is solvent-free and is friendly to the human body and the environment. It is suitable for a wide range of bonding and has no corrosion to the base material.

　　SY-2971 main application areas

　　Youxingshark SY-2971 is used for heat conduction between new energy power battery modules, Packs, and water-cooling plates.

　　SY-2971 Some technical parameters

　　SY-2971 Recommended Curing Conditions

　　The AB component volume ratio is 1:1, the operating time is 15min, and the curing time is 7days (based on @25±2℃, 65±10%RH conditions).

　　SY-2971 Cured Characteristics

　　SY-2971  focuses on performance

　　Flame retardant: SY-2971 is flame retardant to UL-94 V-0 level, providing a strong safety barrier for battery systems.

　　Aging resistance: The excellent aging resistance of SY-2971 enables it to maintain a high level of adhesion in the double 85 accelerated aging test.

　　Thermal conductivity: The greater the thermal conductivity of the adhesive, the better the heat dissipation effect of the lithium battery. However, too high thermal conductivity will also lead to excessive colloid density, which is contrary to the pursuit of lightweight new energy materials. Generally speaking, the thermal conductivity range of the thermally conductive structural adhesive for lithium batteries is suitable between 0.5W/m·K and 2.0W/m·K. The thermal conductivity of Youxingshark SY-2971 is 1.20W/m·K. It should be noted that Youxingshark can adjust the thermal conductivity according to customer needs and specific application scenarios to help new energy vehicle battery packs meet challenges such as safety, durability, sustainability, and integrated assembly.

　　For experiments related to thermal conductivity, please pay attention to the next article for details.