Today, hybrid gasoline-electric vehicles for home use, electric buses, electric patrol vehicles, etc., have been widely used in various fields. New energy electric vehicles are a mainstream development trend in solving energy, environmental, and urban transportation problems, and are also a major direction for the future development of the automotive manufacturing industry.

Power storage batteries are the core part of new energy vehicles, determining the safety, lifespan, and performance of new energy vehicles, and are also one of the most expensive components on new energy vehicles, accounting for more than 50% of the entire vehicle.

As an important material for battery assembly, adhesives play a crucial role in automotive power batteries, profoundly affecting the power battery's output efficiency, charging speed, heat dissipation, and safety. Currently, the wave of electrification is sweeping the globe, and the demand for power batteries is experiencing explosive growth, and the scale of the adhesive market is also expanding simultaneously.

01. Application of Adhesives in New Energy Vehicle Batteries

Power battery technology is undergoing rapid iteration and upgrading, with new products constantly emerging. Research and development of new adhesive materials that adapt to this is indispensable for improving the energy density, safety, cycle life, and lightweight design of power batteries. The four major roles of adhesives in power batteries:

1. Provide protection for power batteries;

2. Achieve safe and reliable lightweight design;

3. Thermal management;

4. Help the battery cope with more complex usage environments.

The main structural adhesives for power battery packs include polyurethane structural adhesives, acrylic structural adhesives, silicone adhesives, epoxy structural adhesives, UV adhesives, and high-temperature hot-melt adhesives. According to their different characteristics, they are applied to different scenarios. In the field of new energy vehicles, products are mainly used in power battery BMS battery management systems and similar types of new energy storage battery modules for protection, heat dissipation, and bonding and fixing in various scenarios; products are used in the thermal management system of battery packs, playing a role in heat conduction, potting, and protection.