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Mysterious lithium battery production process, super detailed illustration

January 12, 2021

Mysterious lithium battery production process, super detailed illustration

 

Today HOPPT BATTERY takes everyone into the world of "lithium batteries," the cornerstone of modern society.


"Lithium battery" is a type of battery that uses lithium metal or lithium alloy as the harmful electrode material and uses a non-aqueous electrolyte solution. Lithium metal's very active chemical properties, processing, storage, and lithium metal use have very high environmental requirements.

 

Lithium batteries can roughly divide into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable.

 

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The well-known Tesla electric car is a battery panel composed of 18650 lithium-ion batteries in series and parallel. With the growing popularity of new energy vehicles, the power battery industry has also become hot!

 

Below we will learn to understand the manufacturing process of lithium batteries in the form of diagrams.

 

The following pictures and text will explain the 21 production processes of lithium batteries:

 

The first step: negative electrode homogenate

 

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Step 2: Positive electrode homogenate

 

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The third step coating

 

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Fourth step rolling

 

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Step 5 Slitting

 

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Step 6 baking

 

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Step 7 winding

 

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The eighth step into the shell

 

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Step 9 spot welding

 

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Step 10 baking

 

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Eleventh step injection

 

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Step 12 welding cap

 

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Step 13 cleaning

 

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Step 14 Dry storage

 

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Step 15 Check the alignment.

 

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The sixteenth step shell coding

 

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Seventeenth step

 

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The assembled battery is given a certain current to excite the battery's positive and negative active materials. Finally, the electrochemical process that makes the battery have the discharge capacity called a chemical conversion. The battery can only be used as a power source after chemical conversion.

 

Step 18 OCV measurement

 

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Nineteenth step storage at room temperature

 

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Step 20: Divide

 

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In the battery manufacturing process, the battery's actual capacity cannot be completely consistent due to technological reasons. Through a certain charge and discharge test, the process of classifying the battery by capacity is called capacity division.

 

Step 21: final process

 

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The above is the preparation process of lithium batteries. What do you think about this?

 

HOPPT BATTERY focuses on the global smart manufacturing industry and provides efficient, safe, and reliable power solutions to its products, helping develop the global smart industry.