Summary
– Donaldson makes battery venting systems for EVs
– Dual-Stage Jet design allows gases to escape at rates of 100 liters/second
– The new system reduces the number of vents required by up to 90%
– Available in two configurations for different types of vehicles
– Customers can customize the design in partnership with Donaldson’s engineers
Article
Filtration specialist Donaldson has introduced a new battery venting system called Dual-Stage Jet, designed to allow gases to escape from an EV battery pack during an emergency situation. This system provides enhanced pressure equalization and ingress protection under normal operating conditions, allowing gases to escape at rates of approximately 100 liters/second at 100 mbar when necessary. Donaldson claims that the Dual-Stage Jet can reduce the number of vents required on a battery pack by up to 90%, making it more efficient and effective in mitigating thermal runaway.
The Dual-Stage Jet is available in two configurations – screw-in/bolt-on or quarter-turn bayonet fittings. The former is suitable for agricultural and heavy-duty vehicles, offering flexibility for use in bulkier battery packs, while the latter is ideal for the automotive sector, providing clear haptic feedback of proper installation. Vehicle manufacturers can customize the design to their specific needs in partnership with Donaldson’s application engineers, ensuring a seamless integration with their existing battery pack housing. The company’s focus on quality, reliability, and customization allows them to serve a wider range of customers in the global EV market.
Customers have expressed the need for higher degassing rates in battery venting systems, prompting Donaldson’s engineering team to develop the Dual-Stage Jet with a unique design. The system features a poppet and cap that can be jettisoned to instantly produce a larger opening for gas to escape, reducing the pressure inside the pack rapidly and minimizing the risk of damage to additional cells. This design not only enhances safety during emergency situations but also provides occupants with extra time to escape from the vehicle. The option of multiple attachment methods and customization ensures that the Dual-Stage Jet can meet the specific requirements of various vehicle manufacturers.
One of the key features of the Dual-Stage Jet is its ability to provide effective ventilation while also allowing for leak testing. Manufacturers can easily perform leak tests by temporarily sealing the vent using the supplied leak-check cap. This simple solution addresses the challenge of testing a product that is designed to provide ventilation, ensuring that the vent meets quality and reliability standards. The Dual-Stage Jet complements Donaldson’s existing Dual-Stage Burst design, offering a medium-pressure option in their portfolio, with the Burst design providing high opening pressure. The versatility and performance of the Dual-Stage Jet make it a valuable addition to the company’s product offerings for the EV market.
Overall, the introduction of the Dual-Stage Jet by Donaldson represents a significant advancement in battery venting systems for electric vehicles. The system’s innovative design, efficient degassing rates, and customization options make it a compelling choice for vehicle manufacturers seeking enhanced safety and performance in their battery packs. With a focus on quality, reliability, and global customer support, Donaldson is well-positioned to meet the diverse needs of the evolving EV market. The Dual-Stage Jet’s ability to provide effective ventilation, enable leak testing, and reduce the number of vents required on a battery pack demonstrates the company’s commitment to innovation and excellence in vehicle electrification technologies.
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