Steps and process flow of button - type battery

The buttons battery(button cell) is also called the button cell, from appearance to distinguish is refers to the overall dimensions as a small button battery, generally larger diameter and thickness of the thinner, the same corresponding cell classification have columnar cells, square battery, special-shaped battery.Kejing below will provide you with the battery of the procedures and equipment, it is mainly divided into three steps:

Active material in the rotary kiln sintering preparation

2. Preparation of good material for mixing and grinding

3. To make good is negative electrode mixture vacuum stirring

4. The viscometer was used to measure the coating effect is better when the slurry viscosity, and record down, so that the battery when the next experiment adjustment to the paste viscosity

5. With slurry filter filter to paste in various hard particle particle size is not less than 124 microns

6. The anode materials is coated on the collection of fluid respectively, and drying

7, plus or minus substrate of drying roll, to reduce the thickness, increase the density.

8. The pole piece into the oven, drying further

Battery encapsulation

9. Will is negative and diaphragm paper, cut into to specify the diameter of the small round piece

10. The cut sheet, diaphragm paper and electrolyte, battery shell and other accessories into the glove box (PPM) water oxygen content should be less than 11

11. According to the order from bottom to top stacked assembly cell and injecting electrolyte, anode shell > flat pad + amount > electrolyte lithium metal pieces, moderate a layer of the diaphragm paper + electrolyte > > electrolyte positive plate + moderate > flat pad + electrolyte electrolyte > shrapnel > positive electrode shell

12. The packaging machine packaging cells

Battery test

13. With battery analyzer to test battery capacity, and the aging cycles

14. Internal resistance tester was used to measure size of battery internal resistance

1.Button cell electrode coating, need after drying, in assembling the battery?

2.Some people say that the diaphragm to wetting, specific how to operate?

3.Carbon materials are usually used as the anode electrode materials, the anode, and the corresponding Chinese, negative?But I see a video of MTI company, they are the anode electrode materials, put positive case inside, very confused, please master.

4.Assembling battery, is put below the positive electrode shell first, and then put the anode material, the diaphragm, anode materials, gasket/spring leaf, negative shell, or put below the negative electrode shell, the next is the order of the anode materials, the diaphragm, the anode material...?When the electrolyte put right?

5. Test after assembled, do the charge and discharge, literature often mentioned in 0.1 C and 0.5 C, charge and discharge, the C is how to determine?What is in the software, enter the specific parameters?Current, or the capacity?

Lithium button cell is mainly composed of the following sections: the positive, negative, positive/negative () plate, diaphragm, gasket, shrapnel, electrolyte.

Commonly used button cell battery shell for CR2032, CR2025, CR2016, C button on behalf of the electric system, R is for battery for round shape.Units in the first two digits of diameter (mm), after two digits for thickness (0.1 mm), both close to digital.For example CR2032 roughly the size of 20 mm in diameter, the thickness of 3.2 mm.

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