1、Equipment Overview

This equipment is mainly used for experimental square lithium-ion power battery cell Z-shaped stacking, the equipment adopts automatic tension control system, cylinder driven diaphragm reciprocating movement, manual pressure knife to assist stacking, with high stacking efficiency, neatness and good characteristics.

2、Work flow

The separate is actively unwound and introduced into the stacking table with positioning fixture through the tensioning mechanism; the cylinder drives the diaphragm to reciprocate and carry out Z-shaped stacking; the pole piece is placed manually and the pressure knife is operated manually to assist in stacking; after the stacking is completed, the core is transferred through the special fixture and then manually wrapped up and glued;

The process flow diagram is as follows:

Technical parameters

Battery Automatic Assembly Machine Stacking Machine

Equipment Overview This equipment is mainly used for experimental square lithium-ion power battery cell Z-shaped stacking, the equipment adopts automatic tension control system, cylinder driven diaphragm reciprocating movement, manual pressure knife to assist stacking, with high stacking efficiency.

AOT-HSDP-250

The separate is actively unwound and introduced into the stacking table with positioning fixture through the tensioning mechanism; the cylinder drives the diaphragm to reciprocate and carry out Z-shaped stacking; the pole piece is placed manually and the pressure knife is operated manually to assist in stacking; after the stacking is completed, the core is transferred through the special fixture and then manually wrapped up and glued.

Q1. What is the stacking process in battery manufacturing?

The stacking process in battery manufacturing involves assembling the individual components of a battery cell in a specific order and sequence to form a complete battery stack. This process is critical for achieving the desired electrical and mechanical properties of the battery.

During the stacking process, electrode layers, separators, and electrolytes are carefully arranged and aligned to create a layered structure. The electrode layers consist of a cathode, an anode, and a separator in between to prevent direct contact. The layers are typically coated with active materials that enable electrochemical reactions during battery operation.

Once the layers are stacked, they are compressed or pressed together to ensure good contact and maximize the electrode's active area. This compression helps to improve the overall performance and energy density of the battery. The applied pressure also aids in the formation of solid interfaces between the electrode layers and the electrolyte, promoting efficient ion transport and reducing internal resistance.

Q2. How does the battery stacking machine work?

The battery stacking machine is used in the battery manufacturing process to assemble and stack the individual battery components, such as electrodes, separators, and current collectors, into a complete battery cell. Here's how the battery stacking machine typically works:

    Preparation: The machine is set up with the necessary components, including the electrodes, separators, and current collectors, which are usually supplied in rolls or sheets.

    Feeding: The machine feeds the electrodes, separators, and current collectors into the stacking area. They are usually guided and positioned accurately to ensure the correct alignment during the stacking process.

    Stacking: The machine uses precise robotic or automated mechanisms to stack the components in the desired sequence. This process may involve placing alternating layers of positive and negative electrodes with separators in between.

    Compression: Once the components are stacked, the machine applies pressure or compression to ensure proper contact between the layers. This compresses the electrodes, helps improve the overall cell performance, and ensures good electrical conductivity.

    Welding: In some cases, the battery stacking machine may also incorporate a welding or bonding mechanism to join the current collectors and electrodes together. This welding process helps establish electrical connections and strengthens the overall structure of the battery cell.

    Inspection: After the stacking and welding process is complete, the machine may include inspection stations to check for any defects or inconsistencies in the stacked battery cells. This ensures the quality and reliability of the finished battery products.

    Output: Once the stacking and inspection are done, the completed battery cells are discharged from the machine. They are then further processed, such as undergoing electrolyte filling, sealing, and additional testing, to create finished battery packs or modules.

Overall, the battery stacking machine automates the precise and efficient stacking of battery components, ensuring consistent and accurate assembly of battery cells in the manufacturing process.

 Q3.Cell stacking machine for battery bags

It is mainly responsible for stacking multiple battery cells (cells) together in a specific order and manner to form a complete battery module or battery pack. With precise stacking, the bag cell stacking machine ensures a solid and reliable connection between battery cells while optimizing the overall performance and safety of the battery pack. The use of this device not only improves the automation of battery production, but also significantly improves production efficiency and product quality, which is of great significance for promoting the development and application of battery technology.

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