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Battery Manufacturing Terminology
The process of stacking positive and negative electrode sheets along with separators in alternating layers using a feeding mechanism, completing the formation of a multi-layer electrode assembly.
The process of heat and pressure shaping the electrode assembly by applying appropriate time, temperature, and pressure, controlling the thickness of the electrode assembly, and securing the shape of the loosely wound electrode assembly to prevent relative movement of the positive and negative electrode sheets.
The process of compacting and shaping the electrode assembly by applying appropriate time and pressure, controlling the thickness of the electrode assembly, and securing the shape of the loosely wound electrode assembly to prevent relative movement of the positive and negative electrode sheets.
The process of removing moisture from the bare cell by controlling the equipment's heating rate, temperature, vacuum level, and duration to ensure that the water content in the cell meets the design requirements.
The process of achieving a sealed or fixed connection by emitting high-energy continuous laser beams to melt the welding area, while controlling parameters such as the power, focus, and speed of the laser welding gun.Note: The welding appearance should be smooth, with no visible defects such as cracks, pinholes, or craters.
The process of using the resistance heat generated by passing current through the workpieces and at the contact point as a heat source to locally heat the workpieces, while applying pressure simultaneously for welding, achieving a sealed or fixed connection.
In the presence of additional pressure, the process of transmitting high-frequency vibration waves through the welding head and welding seat to two objects to be welded. The contact surfaces of the two objects to be welded rub against each other, allowing molecular diffusion, resulting in a form of welding known as molecular fusion.
The process involves pressing the plastic sheet or film to be welded between two heating elements. A high electric current is applied to the heating element, causing it to generate intense heat in a very short time. Subsequently, cooling is applied. During this process, the welding surfaces melt together under the combined effect of heat and pressure, achieving a sealed or fixed connection.
The process of connecting the tab to the terminal post through welding.
Placing the core pack, electrode assembly, or battery cell on a fixed apparatus and using low-energy X-ray transmission to inspect the relative position and dimensions of the material being tested.
Connecting or fastening plates, substrates, stops, insulating sheets, etc., together by welding to form a cover.
The process of assembling the electrode group into the casing.
The process of machining grooves near the positive electrode of a cylindrical lithium-ion battery using a grooving device.Note: Sealing gaskets are installed in the grooves to ensure the battery's sealing.
The process of fully sealing the battery cell by either applying adhesive and curing it with steel ball dispensing at the injection port or using high-energy lasers to melt the cover plate and the sealing gasket together.
The process of stretching the aluminum-plastic film to form a punched pit structure using a die.
The process of immediately sealing the gas bag edge of a pouch cell after injection to completely isolate the interior of the cell from the external environment.
