Скачать или смотреть LiMno2 Button Battery Automatic Production | How is omnergy Button-Cell Battery made?

The manufacturing process of a LiMno2 button cell battery, also known as a button cell battery, involves several delicate steps that ensure high performance, safety, and reliability. Here is a basic overview of the manufacturing process of a button cell battery:

1. Material preparation

• Positive electrode material: Depending on the type of battery, the positive electrode material may include lithium compounds (such as LiMnO₂, LiCoO₂, etc.), silver oxide (Ag₂O), or other active materials.

• Negative electrode material: The negative electrode may be made of lithium metal, lithium alloy, or other suitable materials.

• Electrolyte: The electrolyte is a key component inside the battery, usually composed of salts dissolved in an organic solvent, which is used to transfer ions between the positive and negative electrodes.

• Separator: The separator is located between the positive and negative electrodes, preventing them from direct contact while allowing ions to pass through.

• Casing: The casing of a button cell is usually made of stainless steel or other corrosion-resistant materials to protect the internal structure of the battery.

2. Positive and negative electrode production

• The positive electrode material is coated on a conductive substrate to form a positive electrode sheet.

• Process the negative electrode material into a suitable shape to form a negative electrode sheet.

3. Winding or stacking

• Wind or stack the positive electrode sheet, separator and negative electrode sheet together in sequence to form a battery cell. The tightness and alignment of the battery cell need to be ensured during this process.

4. Injection of electrolyte

• Place the battery cell into the shell and then inject an appropriate amount of electrolyte. This process requires strict control of the amount of electrolyte and the injection speed to ensure the performance and safety of the battery.

5. Packaging

• After the electrolyte is injected, the shell is sealed to prevent electrolyte leakage. Laser welding, mechanical pressing or other technologies may be used in this process to ensure the sealing of the shell.

6. Molding and testing

• Molding the packaged battery to ensure that its size and shape meet the standards.

• Perform performance tests on the battery, including voltage, capacity, internal resistance, safety performance and other indicators. This process helps to screen out batteries with poor performance and ensure the quality of batteries leaving the factory.

7. Packaging and Storage

• Package the tested batteries to prevent damage during transportation and storage.

• Store the batteries in a dry, cool environment to maintain their long-term stability.

In summary, the manufacturing process of button batteries is a complex and delicate process involving multiple steps and key technologies. These steps and technologies together ensure the high performance, safety and reliability of button batteries.

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