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How do you repair the bulge of polymer lithium battery?

Polymer lithium battery bubbling repair method

During the use of polymer lithium batteries , battery bulging may occur due to excessive charging current, overcharging, etc. , and there are also low-cost bulging (peeling) polymer lithium batteries sold on the shopping network for the polymerization of such internal gas. Lithium battery, if used continuously, will not only cause heat and bulging, but also cause safety hazards, and will accelerate battery damage. Therefore, the internal gas must be removed before continuing to use. Here is a brief introduction to the internal gas removal of the polymer lithium battery.
 

bulge of polymer lithium battery


First, preparations:
Find a ventilated location, ready to be treated polymer batteries , scissors, paper clips, toothpicks, 705 clear silicone rubber, scotch tape, syringes, infusion needles with a length of plastic tube (must be the smallest);

Second, pumping preparation:
Connect the syringe to the infusion needle. Hold the needle in the appropriate position of the lithium battery seal. Then fix the needle with tape to keep it from shifting. Use a toothpick to take a small amount of 705 silicone rubber around the needle to prevent air leakage.

Third, the extraction of gas:
Pull the syringe to extract the gas inside the battery. After pumping a tube, use the paper clip to clamp the plastic tube of the needle, separate the syringe from the needle, and discharge the gas. (The gas inside the battery is non-toxic, but the taste is very bad, so find a Ventilation location), then connect the syringe to the needle and repeat the operation.

Fourth, the seal:
After many operations, the aluminum foil of the battery will gradually tighten and close to the battery body, and the battery will become very hard. After the gas cannot be extracted, and the inside of the battery is close to the vacuum state, clamp the plastic tube behind the needle with a clip, cut a small piece (1CM square) of transparent tape with scissors, stick it at the pinhole, press the needle after pressing (and our usual infusion) The same as the dial), the operation is completed.

Fifth, quality inspection:
Since the pinholes are very small and are sealed with silicone rubber and scotch tape, the gas will no longer enter the battery. After a few hours of curing of the silicone rubber, the battery is tested and first fully charged and discharged with a small current for a few times. If the problem of air entrainment no longer occurs, the processing is completed. If there is still gas generated, you can follow the above procedure and operate again. If it still cannot be solved, the battery has been scrapped. I have purchased more than ten gas-filled polymer lithium batteries purchased at low prices on the shopping network. After the above treatment, they have returned to normal use, and the effect is very good.

The lithium polymer battery produced by Benzo Energy / Ufine Technology has been strictly controlled by our production technology and has solved the problem of battery expansion.



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