EV battery
Sealing, bonding, and thermal management solutions for EV and HV battery manufacturing.
Optimal performance with maximum safety
Sealing, bonding, and thermal management are key applications in providing optimal performance and maximum safety to electric vehicle (EV) and hybrid vehicle (HV) batteries. 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 a wide range of materials, including highly abrasive gap filler materials (TIM).
Applications for battery assembly
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.
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.
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.
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.
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.
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.
Strong bond with E-mobility
Market 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
With facilities worldwide and partners in over 100 countries, Graco provides global support & training for your company. Together we help you select the solution that fits your unique requirements with local in-person support after installation.
Download the brochure
Bonding & sealing solutions for EV battery assembly
Learn more about Graco's bonding & sealing solutions for electric vehicle battery assembly.
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Related materials
Tflex CR607
At 6.4 W/m-K thermal conductivity, Tflex™ CR607 is at the forefront of thermal performance for a two-part, cure in place dispensable gap filler.
VM 1802
LG Chem VM 1802, a two-component thermal material for EV Battery and Electronics heat transfer applications.
Liqui-Form 3500 (LF3500)
Henkel - BERGQUIST® LIQUI-FORM 3500 is a high conductivity gel thermal interface material designed for demanding applications that require a balance between dispensability and low component stress during assembly.
HB Fuller EV Protect 4006
EV Protect 4006 is a two-component flame retardant, low-density polyurethane foam designed for potting and encapsulation of cylindrical cells in EV battery modules.
HB Fuller EV Seal 500
Learn more about EV SEAL 500, an easy to apply, fast setting, and resealable gasket material used in automotive and EV battery applications.
LORD CoolTherm SC-1200
LORD CoolTherm® SC-1200 thermally conductive silicone gap filler is a two-component material designed to provide excellent thermal conductivity for electronic and battery applications.
