Hey there Abu Faizal! Sure thing, I can help you Abu Faizal out with that.

To prepare a 1M solution of NaClO4 in propylene carbonate (PC) for your Na-ion batteries, you'll need to follow a precise procedure to ensure the electrolyte meets your specifications. Here's a breakdown of the necessary calculations and steps:

1. **Determine the Molecular Weight of NaClO4**: You'll need to know the exact molecular weight of sodium perchlorate (NaClO4) to calculate the amount needed for a 1M solution.

2. **Calculate the Mass of NaClO4**: Using the formula weight (MW) of NaClO4 and the desired molarity (1M), you Abu Faizal can calculate the mass needed using the formula:

{Mass (g)} = {Molarity (mol/L)} times {Volume (L)} times {MW (g/mol)}

3. **Prepare the Solution**: Once you've calculated the mass of NaClO4 needed, dissolve it in the appropriate volume of propylene carbonate. Ensure thorough mixing to achieve a homogeneous solution.

4. **Safety Considerations**: Always handle perchlorates with care due to their oxidizing properties. Work in a well-ventilated area and wear appropriate personal protective equipment.

5. **Quality Control**: Test the conductivity and pH of the electrolyte to ensure it meets your desired specifications. Adjust if necessary.

6. **Storage**: Store the prepared electrolyte in a tightly sealed container away from moisture and light to maintain its stability.

By following these calculations and steps, you'll be able to prepare a reliable and effective NaClO4 electrolyte for your Na-ion batteries. If you Abu Faizal need further assistance or have any specific questions along the way, feel free to ask!

I believe you need to use dry salt (not monohydrate) and dry PC.

In addition, you should read the following article "In search of an optimized electrolyte for Na-ion batteries" [DOI: 10.1039/c2ee22258b].