The adhesives need to allow the manufacturing as well as the structural and crash-durable joining of the battery enclosure. Adhesives and sealants are used to seal the battery from external environments and protect the cells and electronic parts inside the battery.
Courtesy of Dupont. Some adhesives for battery assembly serve a multifunctional role, providing structural joining, thermal management, and support for dielectric isolation. Adhesives in this class offer thermal management and medium strength that supports the stiffness and mechanical performance of the battery pack.
Structural adhesives have been used in car body engineering for many years and contribute positively to crash performance. The transfer of this technology to battery cages is possible with shear strengths larger than 10 MPa. Apart from specifying the physical properties, many other considerations are necessary before selecting the adhesive.
Structural Adhesives used in EV batteries must withstand high mechanical loads, as well as exposure to temperature extremes, humidity, and other harsh environmental conditions. The following methodologies are used to test the performance: the weight of the battery or vehicle, or internal stresses generated by thermal expansion or contraction.
On top of the thermal conductivity the adhesive further needs to show a good structural strength paired with a high elongation at break to maintain the mechanical structure over the lifetime of a battery also under load (e.g. vibration).
The selection of adhesives and sealants depends on the desired strengths, service considerations and to a great extent on the manufacturing requirements. A wide spectrum of adhesive systems offers the industrial designer new technology options and thermal management solutions for high-voltage batteries.
High-strength crash-durable epoxide based adhesives for bonding metal battery enclosures tolerating dynamic loads in a crash-scenario. Thermally conductive adhesives to …
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This study investigates the types of polymeric adhesives which are used in various battery components and shows how careful choice of components can speed up …
Some adhesives for battery assembly serve a multifunctional role, providing structural joining, thermal management, and support for dielectric isolation. Adhesives in this …
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Adhesive technology plays a vital role in the assembly and performance of electric vehicle battery packs. From ensuring structural integrity to managing heat and …
This study investigates the types of polymeric adhesives which are used in …
Some adhesives for battery assembly serve a multifunctional role, providing …
Structural energy storage aims to enable vehicle-level energy densities, …
Overview of battery safety tests in standards for stationary battery energy storage … Even …
Adhesive technology plays a vital role in the assembly and performance of …
In this paper, we explore trends in future electric vehicle (EV) battery design with a focus on the …
High-strength crash-durable epoxide based adhesives for bonding metal …
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