Solutions for electric vehicle battery and ePowertrain design and manufacture

Find innovative structural adhesives that help optimize battery bonding performance. Increase durability, reliability and more.

Our structural adhesives support battery design trends like cell-to-pack and help address key assembly challenges such as the bonding of dissimilar materials and lightweighting.

Enjoy chassis-mounted solutions that handle stress without adding weight. Our friction shims enable bolted connections to help bear the weight of heavy battery packs. Work with dissimilar mating surfaces such as aluminum, e-coated, painted and composite-material surfaces. You can even help downsize components by allowing the use of smaller and lighter bolts and fasteners.

For over a century, dozens of industries have used adhesives, sealants, films, fasteners and tapes from 3M to help reduce their cycle times and enhance assembly efficiency. Tell us what we can do for you.

Sealing the deal on EV battery assembly: Optimize your EV battery enclosure sealing while enabling automation and enhancing serviceability (PDF, 166 KB)

EV battery serviceability is important. When repairs are needed, the battery enclosure and lid must be readily opened. When reused in second-life applications, batteries must be disassembled without damaging components. When recycled at end of life, parts must be serviced so that aluminum, copper and precious minerals like cobalt, nickel and lithium can be extracted.

Our sealants can help you streamline disassembly:
 

• 3M™ Sealant SZ1000 for EV Enclosure Sealing offers a resealable gasket to facilitate serviceability.

As the industry strives to reduce emissions and meet 2050 climate goals, repair, reuse and recycling will be crucial towards helping minimize the carbon footprint of electric vehicle batteries. Solutions that enable serviceability will be an integral part of this equation.

Help reduce weight and control heat across your battery pack applications with innovative additives and materials.

Drive lightweighting goals with glass bubbles — tiny, hollow, thermally insulating lightweight fillers. They can replace heavy fillers in a variety of resins and still help you meet thermal insulation requirements, plus retain desired viscosity even at high loadings. They can be used in formulations for sheet molding composites, great for critical components such as battery enclosures.

Integrate thermal management into polymers without affecting electrical insulation with boron nitride cooling fillers. These thermally conductive fillers can be used for a range of applications including thermally conductive adhesives, coatings on cables, battery housings, thermal interface material pads between cells, and gap fillers underneath cells.

Need even more control? Keep your EV batteries within their optimum temperature range in unpredictable warm and cold environments with our battery enhancement material. It’s highly compressible, making it ideal for tight spaces between the battery pack and battery pack lid.

We bring decades of expertise in additives and thermal management material technologies. Let’s get to work.

Enjoy long-lasting cushioning performance, ease of installation and compatibility with manual or automated assembly lines.

Intended for cushioning between cells, our microcellular polyurethane cushioning foams are compression tested and can deliver consistent, moderate pressure as battery cells swell and contract during charging cycles. At the cell level, controlled compression helps reduce the negative performance impact associated with high, and uneven, pressure distribution.

At 3M, we constantly work with automotive OEMs to help address needs. Reach out and see how we can help.

See how you can streamline your eMotor manufacture across a range of components and applications.

You can replace varnish and resin in the slots, wedges and phases with electrically insulating slot liners that expand and adhere during cure. Enhance your lamination stack assembly with structural adhesives that balance exceptional metal bonding strength with high temperature stability.

We offer deep expertise in electrical engineering and materials science with a century of experience in the automotive industry. We’ll help you optimize and scale your eMotor designs.