EV battery

Explore sealing, bonding, and thermal management solutions for electric vehicle (EV) and hybrid vehicle (HV) manufacturing.

Applications for Battery Pack and Module Assembly

Whether you use prismatic, pouch, or cylindrical cell types in your module or pack assembly, Graco has one and two component dispensing equipment that is long-lasting, accurate, and can handle the toughest materials, even highly abrasive gap fillers like thermal interface material (TIM).

EV battery cutaway - EV battery manufacturing
Cell to cell and cell to frame bonding Cell to cell and cell to frame bonding Cell to cell and cell to frame bonding
Cell to cell and cell to frame bonding - EV battery manufacturing

Cell to cell and cell to frame bonding

Inside prismatic or pouch module designs, cells are firmly bonded to each other to create cell stacks and to provide insulation and protection against vibration or movement.

These stacked cells and other electronic devices are then bonded to a cooling plate to provide good thermal conductivity and dialectic strength. In many cases, the module is then sealed closed in a lightweight polycarbonate or ABS enclosure to protect against outside contaminants.

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Cell to carrier bonding and module encapsulation Cell to carrier bonding and module encapsulation Cell to carrier bonding and module encapsulation
Cell to carrier bonding and module encapsulation - EV battery manufacturing

Cell to carrier bonding and module encapsulation

Cylindrical cells are often bonded to a polycarbonate carrier during module assembly. This holds the cells stationary throughout the tab welding process and provides structural integrity to the module.

Most often with cylindrical cell modules, a foaming adhesive is applied between the cells to create a lightweight buffer between the cells to provide increased shock and vibration performance and also helps to prevent thermal runaway/propagation events.

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Gap filling Gap filling Gap filling
Gap filling - EV battery manufacturing

Gap filling

Thermal interface materials or gap fillers are dispensed between the modules and the cooling circuits on the battery pack. These viscous adhesives have highly abrasive fillers that are ideal to conduct heat away from the battery.

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Pack seal Pack seal Pack seal
Pack seal - EV battery manufacturing

Pack seal

The battery pack is sealed with cured-in-place gaskets (CIPG) or formed-in-place gaskets (FIPG). The seals meet an IP68 standard to protect the battery against water intrusions and outside contaminants.

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Fire-proof coating Fire-proof coating Fire-proof coating
Fireproof coating - EV battery manufacturing

Fire-proof coating

The cover of the battery pack can be sprayed with a fire-proof coating that not only protects against fire but also protects against corrosion.

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Structural adhesive Structural adhesive Structural adhesive
Structural adhesive - EV battery manufacturing

Structural adhesive

Bonding of dissimilar materials such as aluminium or other materials is done in battery packs or modules with structural adhesives. This not only contributes to a lightweight design but also offers extra strength and rigidity to the battery.

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Solutions for EV battery assembly

Learn more about bonding, sealing, coating and thermal management solutions for electric vehicle battery assembly.

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Strong bond with E-mobility

Automotive & Battery experience

Graco is a renowned name in sealants and adhesive equipment. With years of experience in the automotive and battery markets, we provide our customers with tailor-made solutions and support for sealing, bonding, and thermal management in cell, module, and pack assembly.

Quality components

To guarantee supply of a superior quality of equipment to a market that is constantly evolving, like the battery market, Graco prioritises the investment of human and financial resources in research and development. This results in long-lasting solutions with unmatched results.

Global support & Training

With facilities worldwide and partners in over 100 countries, Graco provides global support and training for your company. Together we help you select the solution that fits your unique requirements with local in-person support after installation.

Contact an EV Battery expert

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Technical Support

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