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 News  What is the Process of Making Li Polymer Batteries?
06-06-2017 10:43 AM  18 months agoPost 1



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Dongguan Shirui Battery Co., Ltd(SR battery for short) is a leading manufacturer of li-ion battery, li-polymer battery, mobile phone battery, battery packs, energy storage battery and power banks since 1993.Today I am honored to be with you to learn the whole process of manufacturing lithium ion/polymer batteries.


The slurry was uniformly coated on the surface of the metal foil and then drying.

2.Rolling in:

Get the positive and negative materials smooth and compacted on roll.


Cutting the entire volume of the pole pieces, welding the current collector, sticking tape automatically according to technical parameters.


Separated the positive and negative film by the isolating membrane, automatically winding into batteries along the axis and paste termination tape.

5.Top side seal:

Put the battery cell into the punched al compound packing film, and seal the left side and the top side.

6.Vacuum baking:

Place the battery in a vacuum industrial oven to discharge the wet gas of the battery to be injected completely.

7.Injection & Seal:

Inject electrolyte into the battery, the process should be completed within a dry glove box. Then first seal.


The first charge and discharge process, each battery is connected to the computer and be tested constantly, to activate battery, recording each battery performance to

9.Fixture baking :

To take out the gas inside the battery because of get charged, fix the batteries in the fixture then send into the baking machine.

10.Second seal:

Seal the battery again to ensure the sealing performance of battery cell.

Our R&D team have more than 100 experienced engineers,and OEM and ODM Services are welcomed.


Place the batteries static in the room at the temperature of 45℃ for 48 hours.


Using a high-precision testing equipment to classify the battery capacity. Each battery is connected to the computer and tested constantly to check the performance by a high precision testing equipment.

Hi my friend, if you want to know more about SR Battery ,click here and feel free to contact us, we will reply you within 12 hours.


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