Lithium batteries, as the basic power source of modern electronic devices, their connection methods are constantly updated with the development of technology. Ultrasonic welding, as a new type of battery connection method, has gradually become the mainstream in the lithium battery industry due to its advantages of high efficiency and safety. Ultrasonic welding of battery terminals is a modern welding technology with many advantages. This article will introduce the principle, application fields, and advantages of ultrasonic welding of battery pole ears.

Advantages of ultrasonic welding application in lithium batteries

Ultrasonic welding technology is a connection method that does not require heating or pressure to connect the positive and negative electrodes of a lithium battery to the upper and lower cover plates of the battery electrolyte. The frequency vibration formed by ultrasound at the connection causes relative displacement of the metal at the connection, and diffusion connection is carried out simultaneously with pressure. And because this method does not require heating and pressurization, it can reduce safety risks such as explosions caused by high temperatures in lithium batteries.
In addition, ultrasonic welding also has advantages such as high efficiency and precision. Its connection speed can reach 200 pieces per minute, and due to the high precision of the welding head, its connection accuracy is also very high, which can ensure the stability and reliability of the battery connection.

The principle of ultrasonic welding for battery pole ears

Ultrasonic welding of battery terminals is a process that utilizes the energy of ultrasonic vibration to heat and melt the metal surface, thereby achieving welding. In this technology, the welding head contacts the surface of the workpiece through ultrasonic vibration, generating high-frequency vibration, which continuously reduces the spacing between metal surface particles, increases frictional heat, and ultimately reaches the melting temperature. By controlling the frequency, amplitude, and welding time of ultrasonic waves, precise welding processes can be achieved.

Application field of ultrasonic welding for battery pole ears

Ultrasonic welding of battery terminals is widely used in industries such as battery manufacturing, automotive manufacturing, and electronic equipment manufacturing. In battery manufacturing, ultrasonic welding of battery terminals can reliably connect the battery terminals to the battery housing, ensuring the normal operation of the battery. In automotive manufacturing, ultrasonic welding of battery terminals can be used to weld battery modules, improving the performance and lifespan of automotive batteries. In the manufacturing of electronic devices, ultrasonic welding of battery terminals can be used to weld battery terminals to circuit boards, ensuring the normal operation of electronic devices.

Advantages of Ultrasonic Welding of Battery Ears
Ultrasonic welding of battery terminals has many advantages. Firstly, it is a very fast welding method, with a welding speed of tens of times per second or even higher. This greatly improves production efficiency. Secondly, ultrasonic welding of battery terminals is a smokeless and odorless welding method that is environmentally friendly. In addition, this technology does not have an open flame and does not generate sparks, reducing the risk of fire. In addition, during the ultrasonic welding process of the battery ear, no volatile solvents are generated, avoiding the generation of toxic gases. The most important thing is that the ultrasonic welding of the battery pole ear causes very little deformation of the workpiece during the welding process, ensuring the quality and reliability of the welding.

Ultrasonic welding of battery terminals is an efficient, environmentally friendly, and safe welding method. It has broad application prospects in fields such as battery manufacturing, automotive manufacturing, and electronic equipment manufacturing. With the continuous progress of science and technology, the ultrasonic welding technology of battery pole ears will continue to improve and develop, providing better solutions for production in various industries.