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What are the precautions for polymer lithium battery assembly?

From:CTECHI GROUP Limited     Release time:2019-10-14

Overview:Polymer lithium battery manufacturer, polymer lithium battery is a gel-like, soft-packed lithium battery, also known as soft-pack lithium battery, which makes lithium battery cells have the same POS machine battery The same local, what are the polymer battery assembly precautions?

What are the precautions for polymer lithium battery assembly?

Polymer lithium battery manufacturer, polymer lithium battery is a gel-like, soft-packed lithium battery, also known as soft-pack lithium battery, which makes lithium battery cells have the same POS machine battery The same local, what are the polymer battery assembly precautions? Polymer lithium battery manufacturers introduce us from two major aspects:

First, in the application of the battery core, including the aluminum-plastic composite film, the top sealing edge (pole end edge sealing), side sealing, pole handle maintenance and prevent mechanical impact, short circuit.

1. Aluminum-plastic composite film packaging maintenance: It is mainly to prevent damage caused by sharp parts. To this end, polymer battery manufacturers should always tidy up the surrounding environment of the battery, to prevent sharp parts from touching or colliding with the battery core, and to wear gloves when using it to prevent the fingernails from scratching the appearance of the battery core.

2, top sealing edge and side sealing edge maintenance: in order to prevent damage to the top sealing edge and side sealing edge, damage sealing effect, should bend the top sealing edge and side sealing edge; together, the battery core planning must take reliable insulation The barrier method is to prevent the butt short circuit between the negative electrode and the aluminum-plastic composite film.

3, pole handle maintenance: polymer lithium battery cell anode lead terminal uses aluminum pole handle, the anode lead terminal uses nickel pole handle. Because the pole shank is thin, the bending should be stopped; together, the pole shank and the aluminum-plastic composite film should be prevented from being touched during the production process, and the ferrule film should be severely blocked.

4, to prevent mechanical impact, such as falling, impact, bending the battery and accidentally smashing the battery.

5. Stop the use of metal objects and wires to short-circuit the positive and negative electrodes.

Second, after a battery core is completed, the next step is to accurately combine with the outer casing and the battery maintenance circuit module to make it a polymer battery. The precautions in this process are as follows:

1. Shell planning:

(1) The mechanical strength is satisfied to prevent the battery core from being damaged by external force.

(2) When the cell device is inside the casing, the sharp corner of the casing is prevented from scratching the cell;

(3) Prevent the aluminum-plastic composite film interlayer from being short-circuited by pure aluminum and external touch.

2. It is necessary to plan the battery maintenance circuit: the scientific setting including the highest/lowest voltage, over-current maintenance, and the combination of the battery core requires overcharge and over-discharge maintenance of the battery unit (single battery core).

3. The transfer of the positive aluminum pole handle through the nickel strip, and the connection of the battery core and the circuit board should be performed by ultrasonic welding or spot welding.

4. The reliable positioning of the battery core, after the battery core is assembled, it should be fastened and reliable in the outer casing, and will not move, so that all the lithium battery structures are in a consolidated state.


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