Here we propose to study the local structure of sodium ion in glyme electrolytes for sodium ion batteries. Glyme electrolyte are linear ethers of the structure CH3-O-[CH2-CH2-O]n-CH3 of which we plan to study three solution with n=1, 2 and 3 respectively. These electrolyte have already prove to have several desirable features for sodium ion batteries enabling graphite to be used as a anode and strongly inhibits the solid electrolyte interface formation. It has also been shown that the capacity of the sodium ion battery depends on the length of the glyme molecule. By understanding the local structure around the sodium ion we hope to understand how this effect the capacity of the battery and how this allows for sodium intercalation into graphite when other electrolyte does not allow for this reaction to occur.