Application Solutions of Adhesives in New Energy Vehicles and Power Batteries

The power battery is the "heart" of new energy vehicles, and the adhesive is the "muscle membrane tissue" that realizes the lasting power of the "heart". The CTP structure battery pack for new energy vehicles omits or greatly eliminates intermediate module components in the design, and instead uses a large amount of glue to connect the fixed battery cells

There are two main requirements for the application of these adhesives: the first type is structural adhesive, that is, it is mainly based on structural bonding, taking into account a certain thermal conductivity, and the second type is thermal conductive adhesive, which is mainly based on thermal conductive bonding, which exports the heat generated during the operation of the battery cell to the external heat dissipation parts, so as to realize part of the functional role of thermal management and take into account the requirements of structural bonding

The main role of adhesive in power battery:

♢ Provide protection effect for power battery;

♢ Achieve safe and reliable lightweight design;

♢ thermal management;

♢ Help the battery cope with more complex use environments

Power batteries mainly use glue dots

【Cell structure bonding】

Requirements: bonding positioning, thermal conductivity, good adhesion to PET film and aluminum sheet

Recommended product: BEPU 5110

♢ Strong adhesion to various substrates

♢ Excellent aging and chemical resistance

【Cell potting】

Requirements: Thermal conductivity, fixed cells, shock absorption, flame retardant, increased safety, low density

Recommended product: BESIL 8230 (7#)

♢ Low density, light weight and non-foaming

♢ Excellent electrical insulation at high temperatures

【Bonding of conductive sheet and module housing】

Requirements: bonding positioning, temperature resistance -40°C~85°C fast positioning

Recommended product: BEEP 6209\ 6211-146

♢ High strength, excellent adhesion

♢ Resistant to transformer oil and low attenuation

[Thermal conductivity between the base plate and the cell]

Requirements: environmentally friendly, thixotropic, good thermal conductivity, fast fixing at room temperature;

Recommended product: BECOAT 9007

♢ Single-component easy handling

♢ Silicone can be peeled

In addition:

【Bonding and fixing the bottom of cylindrical batteries】

【Cylindrical battery holder fixing】

【Thread locking of batteries】

【Nameplate bonding】

For more information about the application of adhesives in new energy vehicles, pay attention to consult the market personnel of Beginor Material or leave a message to us~