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The battery cells of the pouch cell battery can be designed into different sizes according to the needs of customers. When the pouch cell case size is well designed, it is necessary to make the corresponding mold to make the aluminum laminate film forming. The pouch cell case forming process is using the forming mold to punch out a pit on the aluminum laminate film that c...
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After the aluminum laminating film is formed and cut into shape, it is generally called Pocket, as shown in the following figure. In general, when the battery cells is thin, select a single pit (left below), and when the battery cells is thick, select a double pit (right below). Besause when the deformation of aluminum laminate film is too large, it will break through the deformation limit of alum...
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Lithium battery production process mainly includes battery cathode and anode slurry mixing, positive and negative electrode coating, roller pressing, electrode cutting, battery electrode making and die cutting, respectively corresponding to mixer, coating machine, roller press, slitting machine, electrode notching machine and electrode die cutting machine. The previous process of lithium battery -...
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After pouch cells top sealing and side sealing, need to do X-ray to check the alignment of the battery cells, then put the battery cells into the drying room for drying(you can also use the drying oven to drying the battery cells). After the battery cells drying process is completed, The next step is electrolyte filling process and primary sealing process. Through the introduction of the previous ...
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After the electrode coating and drying, the peeling strength between the active material and the current collector foil is very low, and it needs to be rolled to enhance the bonding strength of the active material and the foil, to prevent peeling during immersion in electrolyte and battery use. At the same time, the roller pressing of the electrode can compress the volume of the cell, improve the ...
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Battery electrode coating is a critical process in the manufacturing of batteries, as it affects the performance, efficiency, and quality of the final product. Electrode coating involves the application of a slurry onto a substrate, such as a metal foil or a current collector, to create a uniform and thin layer of active material, such as lithium cobalt oxide, graphite, or silicon, that can store ...
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Lithium-ion batteries are widely used in various fields, such as electric vehicles, consumer electronics, energy storage and aerospace. The performance and quality of lithium-ion batteries depend on the electrode materials and their processing methods. One of the key processes in electrode manufacturing is calendering, which is the compression of the electrode slurry coated on the current collecto...
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Whether prismatic cells or cylindrical cells, welding is one of the important processes in battery production. In the lithium battery production line, the production section of the welding process is mainly concentrated in the cells assembly and PACK line section, see the figure below: Brief description of welding process details 1. Safety vent welding The safety vent, also known as the pressure r...
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The winding process of lithium-ion batteries is to roll the positive electrode sheet, negative electrode sheet and separator together through the winding needle mechanism of the winding machine. The adjacent positive and negative electrode sheets are isolated by the separator to prevent short circuit. After winding, the jelly roll is fixed with a termination tape to prevent it from spreading, and ...
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As a key equipment in battery production, the calibration accuracy of the coating head of the lithium battery coating machine directly affects the coating quality, and thus affects the performance and life of the battery. This article will analyze the calibration method of the lithium battery coating machine die head in detail from three levels: basic calibration, positioning calibration, and fine...
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