Battery Foil Welding

Battery Foil Welding – Ultrasonic Soldering Iron – Cheersonic

Battery foil is used as a collector for lithium-ion batteries. Typically, the lithium-ion battery industry uses rolled aluminum foil as the positive electrode collector. Lithium batteries typically come in two types of shapes: cylindrical and square. The interior of the battery adopts a spiral wound structure, which is separated by a very fine and highly permeable polyethylene film isolation material between the positive and negative electrodes. The positive electrode includes a current collector composed of lithium cobalt oxide (or nickel cobalt lithium manganese oxide, lithium manganese oxide, lithium ferrous phosphate, etc.) and aluminum foil. The negative electrode is composed of a current collector composed of graphitized carbon material and copper foil. The battery is filled with an organic electrolyte solution, and is also equipped with a safety valve and PTC components (some cylindrical use) to protect the battery from damage in abnormal conditions and output short circuits.

The tip of ultrasonic soldering iron vibrates at ultrasonic frequencies. This vibration induces cavitation in the molten solder, which breaks up and removes oxides and promotes wetting. Ultrasonic soldering iron enables the easier joining of hard-to-solder materials which are known as impossible or difficult to be soldered in conventional soldering. Eco-friendly soldering is achieved by fluxless soldering and no post treatment to remove flux. The ultrasonic soldering technology is widely used in battery foil. The ultrasonic soldering iron of Cheersonic produces high quality soldered joints. Using the solder alloy, can easily solder directly to glass, ceramics and other low solderability materials.

Cheersonic is an expert manufacturer of ultrasonic equipment. We have focused on ultrasonic soldering technology more than 20 years. The ultrasonic technology and automated system are researched and developed all by ourselves. In our sample and testing studio we are offering the testing of your material. According to the needs and testing result, Cheersonic would customize ultrasonic solutions for you.