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3M Structural Adhesives for xEV Battery

The latest bonds in xEV batteries

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  • 3M structural adhesives are ideal for xEV battery applications such as battery trays, frame and cover attachment, battery module side panels, between-cell bonding and more. Our two-part epoxy, acrylic and urethane structural adhesives can bond dissimilar materials quickly and precisely, reducing surface prep time and resisting corrosion. In many cases, you can reduce or replace heavy mechanical fasteners in xEV battery design and production, enabling greater design freedom and decreasing assembly time. Some add rigidity and reduce vibration. Some combine strength and flexibility for bonding battery cells and other sensitive components. All offer a wide variety of options for cure times and temperatures – including room temperature – to meet specific OEM requirements. Our structural adhesives meet a range of UL requirements for insulation and conductivity.


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Key benefits for assembly and production

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    Integrates easily into automated processes

    Two-part 3M structural adhesives are available in a broad selection of viscosities and flow rates for fast, precise, repeatable application. They apply easily using automated equipment, without the need to modify existing production processes.

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    Bonding dissimilar materials without degradation or distortion

    Some epoxies and acrylics deliver high adhesive strength on substrates including aluminum, steel and various fiber-reinforced plastics, without the need for primers, and can bond dissimilar materials virtually without distortion or resin degradation. Urethane structural adhesives can provide strong bonds among high-plastic substrates like nylon blends or PBT.

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    Manufactured for precise control and long-term storage

    Many of our structural adhesives are formulated for precise adhesive gap control. Our latest acrylic adhesives are room-temperature stable, can be stored for months at a time and can replace brazing and the cost of the required metals during cooling plate attachment.


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Key benefits for lifespan and durability

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    Seal against moisture and temperature extremes

    Full-covering, fast-curing 3M structural adhesives perform against a broad range of test standards for water intrusion and temperature extremes. Some structural adhesives can create a long-term seal against moisture that can cause corrosion and compromise xEV battery integrity.

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    Isolate between metal and reduce NVH

    3M structural adhesives can serve as isolators between metal substrates, helping resist electric corrosion without the need to source and pretreat metal bolts or rivets. Toughened acrylic and epoxy adhesives can reduce vibration and help in managing noise, vibration and harshness (NVH).

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    A better bond between battery components

    Our structural adhesives can enhance the stiffness of the substrate, delivering outstanding resistance to metal fatigue. They can virtually eliminate substrate failures related to stress concentrations at fastening points, which allows for a smooth, complete and consistent bond between battery components, such as module side panels, battery trays and cooling plates.


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Key benefits for design engineers

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    Thinner and lighter-weight for tight tolerances in small spaces

    Structural adhesives are ideal for the small, thin spaces and tight tolerances in xEV battery design. They deliver structural-strength bonds among a wide range of substrates, so you can use thinner, lighter-weight and dissimilar materials without additional sealers or insulators. They also create thin and consistent bond lines in highly automated environments.

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    Adhesive solutions for every cell type

    Our structural adhesives can help increase design flexibility across pouch, prismatic and cylindrical xEV battery designs. Epoxy and acrylic structural adhesives bond to a very broad range of substrates and afford multiple combinations of strength, temperature resistance and cure times. Urethane epoxy adhesives are excellent for modules or individual cells and can be used in combination with 3M™ Novec™ Engineered Fluids for bonding and protecting cells in direct contact cooling designs.

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