Flow battery internal components

1. For the flow battery reaction area: 7x7 cm, 5x5 cm, and 3x3 cm

2. Copper deflector: 2 pieces

3. Collector plate: 2 pieces

4.PTFE frame: 7x7cm: 2 pieces 5x5cm: 2 pieces 3x3cm: 2 pieces

5. Washer: 7x7cm: 4 5x5cm: 4 3x3cm: 4 pieces

6. Carbon felt: 2 pieces

7. Sealing ring: 4 pieces

8. Liquid access interface: 4

Precautions for use

The following is the recommended replacement cycle of various accessories:

1. The guide plate, after 5 measurements or 50 hours of use, needs to be cleaned to remove the surface oxidation layer. 4.10 When measuring or using for 100 hours, the collector plate needs to be replaced.

2. The collector plate needs to be replaced after 5 measurements or 50 hours of use; The collector plate is a high consumable, it is recommended that customers buy more spare;

3.PTFE frame: After 50 measurements or 500 hours of use, it needs to be replaced

4. Gasket: After 10 measurements or 100 hours of use, it needs to be replaced

5. Carbon felt: according to customer standards

6. Sealing ring: After 10 measurements or 100 hours of use, it needs to be replaced

Contact information

If you are interested in our Flow battery internal components, please contact us for more information and a quote.

Phone：+86 136 6380 8508

Email：jason@cysitech.com

Sales manger：Jason.Zhang

WhatsApp:+86 150 3827 2566

Wechat：cykytech

Application case

Experiment preparation

Material preparation:

Prepare appropriate amount of positive electrode material, negative electrode material, electrolyte and diaphragm.

Cathode material: LiFePO4 or NMC ternary material.

Anode material: graphite or silicon carbon composite material.

Electrolyte: LiPF6 is dissolved in EC/DMC mixed solvent.

Diaphragm: PE or PP microporous membrane.

Tools required:

Electronic scale, agitator, dropper, scissors, ruler and other auxiliary tools.

Button battery packaging mold, manual pressing device, etc.

Environmental preparation:

Ensure that the operation area is clean and dust-free, and the temperature and humidity meet the process requirements to avoid the influence of static electricity and dust.

The operation area should be equipped with a ventilation system to prevent the accumulation of harmful gases.

Experimental procedure

Component preparation and assembly

Positive slurry preparation:

Use an electronic scale to precisely weigh the desired cathode material, conductive agent (such as carbon black), and binder (such as PVDF).

Put the measured material into the blender, add the appropriate amount of solvent (such as NMP), start the blender to ensure that the components are evenly mixed to form a uniform slurry.

Negative slurry preparation:

Use an electronic scale to precisely weigh the required anode materials, conductors and binders.

Put the measured material into the blender, add the appropriate amount of solvent, start the blender to ensure that the components are evenly mixed to form a uniform slurry.

Slurry coating:

The mixed positive paste and negative paste are coated on the aluminum foil and copper foil respectively to ensure uniform coating and consistent thickness.

The coated electrode sheet is placed in a drying oven and dried at a set temperature to ensure that the slurry is fully cured.

Electrolyte injection:

Use a dropper or microinjector to inject an appropriate amount of electrolyte into the positive shell to ensure an even distribution of electrolyte.

Pay attention to control the amount of electrolyte injection to avoid too much or too little.

Assembly operation:

Place the cut diaphragm on the electrolyte of the positive shell to ensure that the diaphragm is flat and free of bubbles.

Place the negative housing over the positive housing, making sure the two are aligned.

Place the assembled battery on the workbench of the button battery packaging mold to ensure the correct and stable position of the battery.

Adjust the fixture to keep the battery in place and avoid moving during packaging.

Package operation:

Start the manual pressing device to package the battery to ensure that the positive and negative shells are tightly combined without leakage.

After the packaging is completed, check the packaging effect to ensure that the positive and negative shell of the battery is tightly combined, no leakage, no bubbles, no cracks.

Performance test

Quality inspection:

Carefully check each piece of encapsulated button lithium battery to ensure that the positive and negative shell is tightly combined, no leakage, no bubbles, no cracks.

Use tools such as microscopes and thickness gauges for detailed inspection and record relevant data.

Performance test:

Some samples were randomly selected for charge-discharge cycle test to evaluate the key indicators such as capacity retention rate and internal resistance.

Record the test results and analyze the influence of the internal components of the flow battery on the battery performance.

Result analysis

Through the use of flow battery internal components, the company achieved the following results in the preparation of button lithium batteries:

Improve energy density: High-capacity positive and negative materials significantly increase the energy density of the battery and extend the service life of the battery.

Enhanced consistency: The high precision slurry coating and drying process ensures the uniformity and consistency of the electrode sheet, improving the overall performance of the battery.

Improved cycle life: The electrolyte with high ionic conductivity and the diaphragm with high heat resistance significantly increase the cycle life of the battery and reduce performance degradation during the cycle.

Improved safety: Optimized internal component design and packaging processes increase battery safety and reduce the risk of short circuits and leakage.