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Marposs Announces Helium Leak Testing Solutions for EV Battery Systems

Identify leaks in cooling tubes, hoses, and plates; prismatic battery cells and modules; battery pack assemblies

Marposs
Mon, 05/13/2019 - 12:00
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(Marposs: Auburn Hills, MI) -- Marposs, a world leader in measurement and process monitoring technologies, has announced the availability of its HeTech helium technology nondestructive leak testing machines for battery systems used in electric vehicles. These machines help identify the presence of leaks in cooling tubes, hoses, and plates; prismatic battery cells and modules, as well as battery pack assemblies. These systems enable parts to be checked for defects without being transferred to a measurement lab, eliminating the need to reload and reposition the part for any necessary reworking, improving the process and optimizing cycle time.

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Using helium-charged vacuum technology the part is placed into a chamber where a vacuum is created. The part is then pressurized with helium and any leakage is measured through a mass spectrometer. These helium-charged systems feature two vacuum chambers with manual opening and closing. The chambers alternate so that while one chamber is closed and running the test cycle, the other chamber is open for loading/unloading.

The machine is designed to inspect complete cells prior to electrolyte filling and sealing. The detectable leak range goes from 5.0 × 10–3 mbar*L/s to 5.0 × 10–8 mbar*L/s.

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