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Process flow chart of lithium iron phosphate battery production

by:dcfpower     2021-03-15

The production process of lithium iron phosphate battery is similar to other lithium battery production process flow charts. There are two kinds of lithium battery pack production processes, so there are two production process flow charts for lithium iron phosphate batteries, which are winding processes. And laminated technology. These two processes are basically the same except for the different stacking steps of the cell pole pieces. Let’s take a look at the flow chart of these two production processes:

The flow chart of the laminated production process of lithium iron phosphate battery:

Laminated battery positive and negative electrode manufacturing process:

Laminated positive electrode and negative electrode manufacturing process:

Stacked The finished product process of the combination of chip positive and negative electrodes:

The advantages of the laminated process are:

(1) The shape and style of the cell are arbitrary , Such as semi-arc, triangle, trapezoid, etc.:

(2) Compared with the winding type, under the same capacity, the volume and weight are smaller;

(3) The maximum capacity of a single battery cell is much larger than that of the winding type;

(4) The battery cell can achieve higher rate discharge with better performance;

(5) The heat dissipation performance of the battery cell is better than that of the winding type;

The winding type production process flow chart of lithium iron phosphate battery:

Manufacturing process of positive and negative electrode of type battery:

Manufacturing process of winding positive and negative electrode:

The finished product process of the combination of positive and negative electrodes:

The advantages of the winding process are:

(1) The production cost is relatively high;

(2) Better control of battery cell consistency;

(3) The manufacturing technology threshold is relatively low;

(4) Generally steel shell or aluminum shell, with Strong external mechanical protection function, better in anti-collision;

(5) It is not prone to deformation;


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