Eaton casts portfolio of battery pack vent valves for electrified vehicles

Jens Buhlinger, Manager, Battery Technology Development, Eaton’s Vehicle Group

Eaton announced its eMobility business has introduced a single-stage vent valve for electrified vehicle (EV) batteries. The valve acts as an overpressure relief for the vehicle’s battery pack.

How effective are the new vent valves?

A battery pack thermal runaway situation can occur when individual cells inside the unit fail due to physical impact or short circuit. Eaton’s single-stage battery vent valve can be precisely and flexibly designed to meet specific opening pressures and optimize venting.

The valve’s proven resealing tech allows Eaton’s clients to specify very low opening pressures and testing for 100% functionality compared with the burst-valve tech commonly used.

What were the executive’s thoughts on the valves?

“As the EV market continues to grow, battery packs are becoming more powerful and create more heat. OEMs are designing new safety systems to ease the impact of thermal events. Our new battery vent valve is designed to enable rapid overpressure release in the battery pack,” said Jens Buhlinger, manager, Battery Technology Development, Eaton’s Vehicle Group.

“Our new battery vent valve features an easily assembled quick-connect technology, reducing complexity for battery pack manufacturers while ensuring a robust connection that stays in place. Our quick-connect feature was developed based on proven technologies from our more than 30 years of experience in safety-critical fuel emissions venting,” Buhlinger said.

Eaton plans to add new tech to its battery safety offerings, like a dual-stage valve that incorporates all the features of the single-stage version and humidity management solutions for inside EV battery packs. Learn more about Eaton’s single-stage battery pack vent valve.