The unique
medium-pressure design ejects the poppet and cap to provide a larger opening for gas to escape during an emergency
situation, boosting safety and reducing the risk of damage to other battery packs. It’s so efficient, it can
reduce the number of vents required on a battery pack by up to 90%.
MINNEAPOLIS
(June 20, 2024) — Donaldson Company, Inc. (NYSE: DCI), a leading worldwide provider of innovative filtration
products and solutions, has extended its range of battery venting systems with the Dual-Stage Jet, a brand-new
design that takes electric vehicle (EV) safety to a whole new level by offering the industry’s fastest degassing
capabilities, while streamlining the installation process for OEMs. Launched at The Battery
Show
in Stuttgart, Germany, Dual-Stage Jet has been purposely designed to meet the increased demands of today’s more
complex and powerful batteries – from providing enhanced pressure equalization and ingress protection under normal
operating conditions to allowing gases to escape at rates of approximately 100 lit/sec @ 100 mbar in an emergency situation.
“Customers
were telling us that they needed
even higher degassing rates than what was available on the market, so the Donaldson Vehicle
Electrification Development
engineering team came up with a unique, creative design where the poppet and cap can be jettisoned to instantly
produce a much larger opening for gas to escape and help mitigate thermal runaway,” explains Shane
Campbell, Product Manager for Vehicle Electrification at Donaldson. “The pressure
then rapidly decreases inside the pack, greatly
reducing the risk of damage to additional cells and giving
occupants extra time to escape from the vehicle.”
Tailored
to OEM Needs
Dual-Stage
Jet is available in two distinct configurations – screw-in/bolt-on or quarter-turn bayonet fittings. Agricultural
and other heavy-duty vehicle manufacturers are likely to favor the former, which can offer more flexibility for use
in bulkier battery packs, while the lighter bayonet fittings will be of greater appeal to the automotive sector and
provide clear haptic feedback of proper installation.
“The
option of multiple attachment methods is important to our customers who want something that integrates really easily
with their existing pack, and with application engineers all over the globe, we’re located near the OEM wherever
they may be,” continues Goode. “I think our customers find it refreshing that we take the time to understand their
true needs and then find the best solution for them, rather than an ‘off-the-shelf take it or leave it’ type of
approach.
Another
major benefit is that these high-performance vents can
reduce the number required on a battery pack by 50-90%. As well as reducing product cost, this also leads to
significant time and money savings in the assembly, ordering and stock-keeping processes.”
Effective
Ventilation Means Efficient Performance
At
58mm in diameter, and containing approximately 20% recycled plastic, the vent also delivers a simple solution to the
occasionally tricky problem of performing a leak test on a product expressly designed to provide effective
ventilation. Temporarily sealing the vent using the supplied leak-check cap is all that is required for
manufacturers to carry out tests themselves.
Using
Donaldson’s proprietary Tetratex® expanded polytetrafluoroethylene (ePTFE)
membranes
for enhanced protection from contaminants, the Dual-Stage Jet enables consistent pressure equalization with a
minimum airflow of 97 lit/hr @ 10 mbar during
normal operation. Manufactured in-house, the hydrophobic membrane is comprised of small, randomly connected fibrils
that create a permeable water barrier, providing continuous pressure equalization, while offering IP67, IP68 and
IP69K ingress protection against water, dirt and other contaminants. The membrane’s unique oleophobic treatment also
helps the filter media repel oils, providing additional protection.
By
ensuring that damp
air, which could otherwise accumulate inside the battery housing, is expelled, the effective ventilation provided by
the new vent thereby helps to prevent potential internal condensation issues reducing the lifespan of enclosures and
batteries alike.
“Quality
and reliability are top of our customers’ agenda, and our new vent really fits the bill,” concludes Campbell.
“Dual-Stage
Jet is a fantastic addition to our portfolio; one that enables
us to serve more of the global EV market by providing another best-in-class product while offering our customers
even greater choice to match their specific applications.
Our
Dual-Stage
Burst
design is still available, with a high opening pressure [25 lit/sec @ 300 mbar] while Dual-Stage Jet occupies the
medium-pressure section of our portfolio – facilitating industry-leading degassing airflow through a design that’s
never been seen until now.”
More
information
To
find out more, visit: https://www.donaldson.com/venting
or contact grpemeasalesivs@donaldson.com.
About
Donaldson Company, Inc.
Founded in 1915, Donaldson (NYSE: DCI) is a global
leader in technology-led filtration products and solutions, serving a broad range of industries and advanced
markets. Diverse, skilled employees at over 140 locations on six continents partner with customers - from small business owners to R&D
organizations and the world’s biggest OEM brands. Donaldson solves complex filtration challenges through three
primary segments: Mobile Solutions, Industrial Solutions and Life Sciences. Additional information is available at
Donaldson.com.
Sarika Dhadwal (952)
887-3753
Sarika.Dhadwal@Donaldson.com