Vacuum Instruments Corporation

Leak Testing Electric Vehicle Batteries

Whether it’s in response to soaring gas prices or global warming, more and more people are looking into fuel-efficient, cleaner-running cars, such as hybrid electric vehicles and fully electric vehicles.

Lithium-ion batteries play a key role in these vehicles, having the greatest charge capacity over competing battery technologies.  Just like with fuel rails and other automotive components that require leak testing these batteries are tested with a helium hard-vacuum system.

VIC designs and builds custom tracer gas leak detection systems to test these power cells, several at a time.  Each chamber is provided with its own product evacuation, charging, venting and valve scheme.  A common dry vacuum pump with vacuum ballast provides the vacuum source.  During the initial chamber evacuation, the system will perform a fitting-in-place check using a pressure transducer.  This check is a pretest of seal integrity prior to evacuating the product and charging it with helium.  After a successful vacuum decay test, the part is back-filled with helium to a specified pressure.  After completion of all tests, the test part is vented to atmospheric pressure and re-evacuated to remove all residual helium before the part is unloaded.

Vacuum Instruments Corporation is a pioneer in providing state-of-the-art leak detection solutions for diverse applications and industries. Our systems have ensured the safety and performance of countless products that we use in our daily lives from the cars we drive to the air conditioners in our houses, the pacemakers in our bodies, and the satellites we launch into space.
Vacuum Instruments Corporation, LLC
2101 Ninth Avenue, Ronkonkoma, NY 11779 USA
Vacuum Instruments Corporation
2101 Ninth Avenue 11779 Ronkonkoma, NY
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