The Application of Copper Welding Wire in the Welding of New Energy Vehicle Batteries

New energy vehicles are vehicles that use new power systems as the main power, and have the advantages of energy saving, environmental protection, safety, etc. They are the development direction of the future automobile industry. The battery of the new energy vehicle is its core component, and its performance and quality directly affect the cruising range, safety and cost of the new energy vehicle. Therefore, the welding technology of the battery is one of the key technologies of the new energy vehicle, and also a hot topic in the welding field. Copper welding wire is a commonly used welding material, which has good electrical conductivity, thermal conductivity, ductility, corrosion resistance and other characteristics, and is suitable for various welding methods, such as gas welding, arc welding, laser welding, ultrasonic welding, etc. The application of copper welding wire in the welding of new energy vehicle batteries mainly includes the following aspects: – Lithium battery welding. Lithium battery is the most widely used new energy vehicle battery, which consists of positive electrode, negative electrode, separator, electrolyte, etc. The positive and negative electrodes are made of aluminum foil and copper foil as the current collector, and are compounded with the active material. Copper welding wire can be used to weld the copper foil with the battery pole or the connecting plate, forming the internal circuit of the battery. There are many welding methods of copper welding wire, such as resistance welding, laser welding, ultrasonic welding, etc. Among them, laser welding has the advantages of fast welding speed, high welding quality, small heat affected zone, no pollution, etc., and is one of the most advanced welding methods at present. – Supercapacitor welding. Supercapacitor is an electronic component that can quickly charge and discharge, and has the advantages of high power density, long life, low cost, etc. It can form a hybrid power system with lithium battery, and improve the performance of new energy vehicles. The electrode of the supercapacitor is made of conductive materials such as graphene or carbon nanotubes, and has a large surface area, which can store a large amount of charge. Copper welding wire can be used to weld the electrode with the current collector or the connecting plate, forming the internal circuit of the supercapacitor. There are many welding methods of copper welding wire, such as resistance welding, laser welding, ultrasonic welding, etc. Among them, ultrasonic welding has the advantages of low welding temperature, high welding efficiency, stable welding quality, no pollution, etc., and is one of the most suitable welding methods at present. – Fuel cell welding. Fuel cell is a device that directly converts chemical energy into electrical energy, and has the advantages of high energy density, low emission, low noise, etc. It is another important power source for new energy vehicles. The core component of the fuel cell is the stack, which consists of a series of single cells, each of which consists of an anode, a cathode, an electrolyte membrane, etc. The anode and the cathode are made of carbon paper or carbon cloth as the carrier, and are compounded with the catalyst. Copper welding wire can be used to weld the anode and the cathode with the bipolar plate or the connecting plate, forming the internal circuit of the stack. There are many welding methods of copper welding wire, such as resistance welding, laser welding, ultrasonic welding, etc. Among them, resistance welding has the advantages of low welding temperature, low welding pressure, good welding quality, no pollution, etc., and is one of the most commonly used welding methods at present. In summary, the application of copper welding wire in the welding of new energy vehicle batteries is an efficient, reliable and environmentally friendly welding technology, which provides strong technical support for the development of new energy vehicles, and also provides a broad space for the innovation of the welding field.铜焊丝,Copper Welding Rods,铝焊丝,aluminium welding wire,镍焊条,Nickel electrode,药皮焊条,Flux Coated Brazing Welding Rods