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Lithium batteries are used in many different devices. Such as energy storage systems, electric vehicles, toys, cameras, etc. All devices require different sizes and sizes of batteries. That is why we have different types of batteries. -Can be seen in different shapes and sizes.
Lithium batteries may be used in any equipment, but the process of making all lithium batteries is the same. So today we are going to tell you which components are used to make lithium batteries. and how lithium batteries are made
Components required to make lithium battery
So first of all you should know which components are used to make lithium batteries.
Different cells are used to make lithium batteries. And different sheets are also used to make the body of lithium batteries. Different holders are also used to connect the cells together. Is. Whose complete list is given below.
- Lithium Cells such as: Nickel-Magnesium-Cobalt Lithium-Ion Cells, or NMC Cells
- Lithium Ferrophosphate or LFP Cells
- Prismatic Cells
- Cell Holder
- Nickel Strips
- Battery Management System or BMS
- Wires like DC wire, sensor wire etc.
- Barley Paper
Tapes such as FRP tape, Kapton tape, filament tape, double-sided tape, etc.
Various body types such as stainless steel, mild steel, plastic container, epoxy fiberglass body, FRP sheet body, heat-shrink sheet body, etc.
Of all the components used in lithium batteries, only lithium cells are imported from outside, almost all the other components are made in India only.
Machine required to make lithium battery
Many different types of machines are used to make lithium batteries because different machines are used from testing to welding of cells used in lithium batteries. The list of all these machines is given below. .
- Cell Grading Machine
- Cell Sorting Machine
- Auto insulating sticker pasting machine
- CCD Inspection Machine
- Automatic Spot Welding Machine
- Automatic Laser Welding Machine
- Battery Testing Machine
How are lithium batteries made
So now you have come to know about the machines and equipment for making lithium batteries, now let us talk about how a complete lithium battery is made using them.
1.Cell grading
First of all, grading of cells used in lithium battery is done. In this machine, the cell is tested by charging and discharging it completely.
After this the cells are categorized according to their capacity. For example, if we have 3.2v cells, then the cells are categorized by checking the voltage till decimal. For example, cells of different volts like 3.23v, 3.25v and 3.28v are categorized separately. Is categorized.
The biggest reason for separating these cells is that if you use cells of different volts in a lithium battery, it has a negative impact on the life of the battery. That is why the voltage of all the cells installed in the battery is kept the same. Is.
2.Cell Sorting
This process is similar to cell grading. But in this process the cells are separated on the basis of their voltage and internal resistance. So that the voltage and internal resistance of all the cells used in the lithium battery can be kept the same.
3.Applying Barley Paper for Insulation
It is a type of insulation paper which is used to protect cells from internal short circuit. This process can be done both automatically and manually. After this paper is applied, the cell becomes ready to be installed in the battery.
4.Fixing the cells in the cell holder
Cell holder is used to fix the cells together. It consists of small square boxes which are connected to each other. Inside which the cells are placed and the cell holder is placed both above and below the cell. Is placed on the side. Any number of cells can be installed in the battery with the help of cell holder. The bigger the battery, the more cells are placed in it.
5. Inspection of the Cells
After installing the cells in the holder, it is checked whether the positive and negative terminals are installed correctly or not. If even one cell is installed incorrectly then the entire battery will not work. CCD machine is used to check this. is done.
6.Soldering or Welding The Cells
After passing through the CCD machine, support welding is used to connect all the cells together, for this nickel strips are used. This work is done manually and also with the help of machine. For which different machines are required, you are told about it below.
In this machine, the operator has to do welding in the battery with the help of foot pedal and he has to manually adjust the battery pack and weld all the cells one by one. This takes a lot of time.
Once the battery pack is installed in this machine, the computer automatically analyzes the battery pack and turns all the cells automatically and this work is done very quickly. Due to which a lot of time is saved and many battery packs can be switched off in a very short time.
This welding is used to connect large cells. In this, the battery pack is installed in the machine and after analyzing it in the computer, it is automatically welded with laser and this entire process can also be seen in the computer as to how. It’s becoming like a cell world.
All different welding methods have their own advantages and some shortcomings, but it depends on which welding is right for which cell and on this basis the welding method is selected.
7.Arrange the Lithium Cell Strings
After welding, the battery pack is joined with the help of epoxy sheet insulator paper and different tapes.
But this battery is still not complete because Lithium battery cannot be used directly like Lead Acid battery, for this you need to install BMS.
8.Connecting a BMS
BMS means Battery Management System. This is a type of computer circuit which is connected to the battery with different strings. So that the charging discharge hit etc. of the cells can be monitored and the safety and life of the cells can be increased.
It acts as the brain of the entire battery, optimizing and protecting the battery and monitoring battery health.
Currently we see two types of BMS in the market.
- Normal BMS: This is a simple battery management system which is installed in the lithium battery, it automatically optimizes the battery and helps in increasing the health and life of the battery.
- Smart BMS: Different sensors are provided in the smart battery management system, along with this, a Bluetooth transmitter device is installed in it so that all the data of the battery can be seen on your phone also.
9.Lithium Battery Testing
As soon as the battery management system is installed, the lithium battery is completely switched off and ready. Now it is just tested to see whether the battery is charging properly or not.
This machine is used to test the battery, where a computerized report is prepared after charging and discharging the battery.
If the battery passes this test then the battery is ready to use.
10.Lithium Battery Body
After passing the battery test, it is now inserted into the body. This body can be of stainless steel, mild carbon steel and plastic. The body of the lithium battery is fitted as per its requirement, for example, if a bigger and heavier lithium battery is to be made, then it is fitted in a stainless steel body. If a small battery is to be made, then a plastic container can also be used there. .
Conclusion
So this was the information about making lithium batteries. Hopefully, now you know how lithium batteries are made and which components are used.
If you also want to use lithium battery in your home then you can use it because there are many benefits of installing lithium battery.
As lithium batteries are very light in weight. The life of a lithium battery is many times longer than that of other lead acid batteries. There is no maintenance of this battery, you have to install it once and use it.
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