Henkel says solutions addressing the 'pain points of OEMs and tier suppliers include liquid gasketing, magnet bonding, thermal management and potting products as well as an impregnation service.

Next to liquid sealants, thermal interface materials, adhesives and impregnation resins for new-generation battery packs, Henkel is leveraging existing and new products and technologies for the emerging trend towards e-drive modules, combining electric motor, power electronics and gearbox in one integrated e-axle unit.

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In addition, customers are supported with appropriate design guidelines and recommendations for process requirements including equipment enabling automated high-volume production.

"The electrification of vehicles is gaining pace and helps automakers reduce their fleet fuel consumption and CO2 emission footprint in line with strict regulation targets," said Global Business Development, Powertrain & e-Mobility, Henkel Global Business Development, Powertrain & e-Mobility, Frank Kerstan.

"As all major OEMs and new players in the automotive industry are launching more and more full hybrid and battery electric vehicles there is a need for matching technologies designed to support these new drive concepts and manufacturing schemes.

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Henkel's portfolio of solutions for the entire value chain of e-drives manufacturing is focused on six key application areas:

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  •  Liquid gasketing: Henkel offers a range of different gasketing technologies. Latest product innovations include Loctite AA 5820, which is suitable to provide a seal of multi-substrates or any flange design of e-drive housings. The polyacrylate adhesive shows resistance to oils, including automatic transmission fluids (ATF) and can withstand temperatures from -40°C to +150°C.
  •  Potting: Another polyacrylate technology – Loctite AA 5831 – is used for protection and fixation of parts in the e-motor or in the conversion electronic control unit. The compound has a fit in large-series potting operations and cures within seconds under UV light and moisture.
  •  For e-drive stator coil potting applications, Henkel offers the two-component epoxy technology of Loctite PE 8082 which has a thermal conductivity of 1 W/mK, resulting in a significantly reduced working temperature. In addition, it shows good oil resistance.
  •  PCB Technologies: Printed circuit board solutions include conformal coatings, thermal interface materials, low pressure moulding products, and next generation of solder technologies for e-drive power conversion control units.
  •  Impregnation Service: Henkel's Loctite Impregnation Solutions (LIS) service leverages the flowability of low-viscosity polymeric resin to fill micro-porosities and voids ("leakers") and permanently seal components, such as aluminum cast e-drive housings, against common automotive fluids. The company operates 30 LIS Service Centres worldwide, which are fully certified to IATF 16949, ISO 14001 and OHSAS 18001.
  •  Magnet bonding: Loctite EA 9497 is used for the bonding of magnets inside the e-motor. The two-component epoxy adhesive has proven its reliability in this application segment, combining a wide operating temperature range of -55°C to +200°C with high mechanical strength as well as good chemical and oil resistance. With its added thermal conductivity, it also supports a more efficient thermal management.
  •  Parts Cleaners and Lubricants: Henkel's range of machining products along with parts cleaners help to maintain a cleaner part through the entire process to ensure tight tolerances and reduce residues on parts, especially when used on sensitive e-drive modules