Application of bis-(2-dimethylaminoethyl) ether in battery pack sealing of new energy vehicles

March 8, 2025by admin0

Application of bis-(2-dimethylaminoethyl) ether in the sealing of battery packs of new energy vehicles

Introduction

With global emphasis on environmental protection and sustainable development, the market demand for new energy vehicles (such as electric vehicles) has grown rapidly. One of the core components of new energy vehicles is the battery pack, and its performance and safety directly affect the range and service life of the entire vehicle. The sealing performance of the battery pack is one of the key factors in ensuring the safe operation of the battery. As a high-performance chemical material, bis-(2-dimethylaminoethyl) ether (hereinafter referred to as “bis-ether”) has gradually attracted attention in the application of new energy vehicle battery pack sealing in recent years. This article will introduce in detail the characteristics, application scenarios, product parameters and their advantages in battery pack sealing.

Basic Characteristics of Bis-(2-dimethylaminoethyl) ether

Chemical structure and properties

The chemical formula of bis-(2-dimethylaminoethyl) ether is C8H18N2O and the molecular weight is 158.24 g/mol. It is a colorless to light yellow liquid with low viscosity and good solubility. The bisether molecule contains two dimethylaminoethyl groups, which impart unique chemical properties such as good thermal stability, chemical resistance and low volatility.

Physical Properties

parameters	value
Boiling point	220-230°C
Melting point	-50°C
Density	0.92 g/cm³
Viscosity	10-15 mPa·s
Flashpoint	110°C

Chemical Properties

Bisere has good chemical stability and can maintain its properties over a wide temperature range. It has good tolerance to acids, bases and most organic solvents, which makes it outstanding in a variety of industrial applications.

Application of bis ether in battery pack sealing of new energy vehicles

The importance of battery pack sealing

The battery packs of new energy vehicles are usually composed of multiple battery modules that need to work in a sealed environment to prevent moisture, dust and other contaminants from entering. The sealing performance of the battery pack directly affects the safety, life and performance of the battery. If the seal is poor, the battery may be short-circuited, overheated or even moreTo serious problems such as fire.

Advantages of bis ether as sealing material

Excellent sealing performance: Bi-ether has low viscosity and good fluidity, and can effectively fill tiny gaps in the battery pack to form a uniform sealing layer.
Good thermal stability: Bis ether can still maintain its performance in high temperature environments, and is suitable for the sealing needs of battery packs under high temperature operating conditions.
Chemical corrosion resistance: Bi-ether has good tolerance to electrolytes and other chemicals that may exist in the battery pack, and can maintain a sealing effect for a long time.
Low Volatility: The low volatility of bis ethers reduces its evaporation loss under high temperature environments, ensuring the long-term stability of the sealing layer.

Application Scenarios

Sealing between Battery Modules: Bi-ether can be used to seal the seam between battery modules to prevent electrolyte leakage and external contaminants from entering.
Sealing of Battery Pack Case: Bi-ether can be used to seal the battery pack housing to ensure the sealing performance of the entire battery pack.
Sealing of Battery Connectors: Bi-ether can be used for sealing of battery connectors to prevent corrosion and failure of connectors due to environmental factors.

Comparison of product parameters and performance

Comparison of properties of bis ethers and other sealing materials

parameters	Diesel	Silicone	Polyurethane
Sealing Performance	Excellent	Good	Good
Thermal Stability	Excellent	Good	General
Chemical corrosion resistance	Excellent	General	Good
Low Volatility	Excellent	General	General
Cost	Medium	Low	High

Product parameters of bis ether

parameters	value
Appearance	Colorless to light yellow liquid
Viscosity	10-15 mPa·s
Density	0.92 g/cm³
Boiling point	220-230°C
Melting point	-50°C
Flashpoint	110°C
Thermal Stability	Excellent
Chemical corrosion resistance	Excellent
Low Volatility	Excellent

Specific application cases of bis ether in battery pack sealing

Case 1: A brand of electric vehicle battery pack sealed

A certain brand of electric vehicles uses bis ether as the sealing material for battery packs. After rigorous testing and actual use verification, bis ether shows excellent sealing performance and long-term stability. The battery pack can still maintain a good sealing effect in high temperature and high humidity environments, effectively extending the service life of the battery.

Case 2: A certain brand of electric bus battery pack sealed

A certain brand of electric bus uses double ether as the sealing material for the battery pack. After a long period of actual operation, the sealing performance of the battery pack has not decreased significantly, ensuring the safe operation of the vehicle and the safety of passengers.

Future development and application prospects of bis ether

As the new energy vehicle market continues to expand, the demand for battery pack sealing materials will continue to grow. As a high-performance sealing material, bisether has broad application prospects. In the future, with the continuous advancement of technology, the performance of bis ether will be further improved and the cost will be gradually reduced, making it more widely used in battery pack sealing of new energy vehicles.

Future development direction

Performance Optimization: By improving production processes and formulations, further improve the sealing performance, thermal stability and chemical corrosion resistance of bis ethers.
Cost Control:Through large-scale production and process optimization, the production cost of bis ether is reduced and it is competitive in more application scenarios.
Environmental Performance: Developing more environmentally friendly biether products to reduce the impact on the environment, in line with the trend of global sustainable development.

Conclusion

Bis-(2-dimethylaminoethyl)ether, as a high-performance sealing material, shows excellent performance in the sealing of battery packs of new energy vehicles. Its good sealing properties, thermal stability, chemical corrosion resistance and low volatility make it an ideal choice for battery pack sealing. With the continuous advancement of technology and the growth of market demand, the application prospects of bis ethers in battery pack sealing of new energy vehicles will be broader.

Through the introduction of this article, I believe readers have a deeper understanding of the application of bis-(2-dimethylaminoethyl) ether in battery pack sealing of new energy vehicles. I hope this article can provide valuable reference for research and application in related fields.