The marketabilty of hyorid and electric vehicles on the market now depends to a large extent on their power batteries. They musthave high energy density, high performance and long service life,while also meeting strict safety standards. In electric vehicles.lithium-ion battenies currently dominate the field In order to obtain the highest capacity and voltage, many ithium-ion batteries areconnected together in power batteries.
Therefore, the battery room in an electric car is usually very large, weighing several hundred kilograms. For maximum safety, they areusually installed in a sealed housing under the seat at the bottom of the vehicle. Therefore, when the vehicle encounters a puddle, carwash or fire, the battery of the high-voltage pool must be adequately protected to prevent water from seeping into the body of water(or example, in difficult terrain or flooding),. Moisture can cause a short circuit, which endangers the safety and function of the safetyvehicle. In order to avoid the explosion of the battery, the battery is now equipped with a pressure relief explosion-proof valve at thetop. The pressure relief explosion-proof vaive is standard for each battery and is also the most important explosion-proof barrier.When the internal pressure of the battery is too large, the top pressure relief and explosion-proof valve will open the exhaustdecompression to avoid explosion.

battery pack is a high-tech product designed and developed with a newconcept. Through careful design, it integrates waterproof, breathable andexplosion-proof functions. It not only has the explosion-proof and blastingdamage reduction functions of traditional explosion-proof valves, but alsohas waterproof and breathable functions. It has the advantages of hightemperature resistance, non-combustion, high impact resistance, highreliability, simple installation, high waterproof performance, large airpermeability, high precision of starting point, automatic reset afterblasting, 100% detection before shipment to ensure product quality, etc.SDA Shangda explosion-proof pressure relief valve (Explosion-proofvalve for battery pack)is made of aluminum alloy CNC precision machining, and the surface is hardened and anti-corrosion treatment.

Compared with the disposable plastic explosion-proof vave in the industry and the regular”vent valve + explosion-proof metal sheet”scheme, ithas the advantages of high temperature resistance, non-combustion, large impact resistance, high reliabilty, simpleinstallation, high waterproof performance,large air permeabilty, high accuracy of starting point, automatic reset ater blasting, 100%detection before shipment to ensure product qualty, etc. and effectively avoids the problems of functional falure of plastic explosion-proof valve caused by softening and deformation of plastic shell, air hole adhesion and blockage caused by high temperature duringblasting, it can be widely used in battery packs and battery boxes of electric vehicles and motorcycles, new energy electric vehicles,hybrid vehicles, high-power energy storage equipment, and various outdoor explosion-proof electrical equipment products.