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Leakage Test For Electric Vehicle Batteries

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Leakage Test For Electric Vehicle Batteries
Leakage Test For Electric Vehicle Batteries

Video: Leakage Test For Electric Vehicle Batteries

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At Motek, Inficon GmbH from Cologne will be showing leakage test and leak detection solutions for all phases in the manufacturing and value creation process of EV / HEV batteries: from helium vacuum testing of individual battery cells to helium sniffing leak detection on larger battery modules and packs through to coolant and refrigerant sniffing leak detection after final assembly.

Ensure battery tightness

With EV / HEV technology, new leak test requirements are coming to the automotive industry. This begins with the fact that each individual battery cell must be reliably protected against the ingress of air humidity and air. That is why Inficon recommends a helium vacuum test against a limit leak rate of 10-5 to 10-6 mbar ∙ l / s.

A large Chinese manufacturer of battery cells is already using a large number of modular leak test devices of the type Inficon LDS3000 for this purpose. If the individual cells are then combined into larger battery modules - or even later into battery packs - the tightness of the cooling circuit must be ensured in production. For example, the Protec P3000 helium sniffing leak detector from Inficon should be suitable. The integrity of the battery pack to the outside (IP67) can be checked with the Sensistor-Sentrac sniffing leak detector. After the final assembly, the vehicle manufacturer has to check the tightness of the installed EV / HEV battery himself: as a multi-gas orAccording to the manufacturer, the Inficon Ecotec E3000 immediately detects the leakage of any coolant and refrigerant.

Robot sniffing leak detection on hydraulic pressure vessels

In addition, Inficon will be demonstrating the automatic sniffing leak detection on hydraulic pressure vessels that are installed in trucks at its Motek booth this year. With this so-called robot sniffing, a sniffer tip is automatically guided by a robot arm in a defined way over the entire surface of a component - here: the pressure vessel. Any leaks in the hydraulic pressure tank should be reliably identified by the very fast and flexible procedure of the robot sniffing leak detection. (sh)

Motek 2016: Hall 3, booth 3164

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