Stability of Sodium Electrodeposited From a Series of Room Temperature Chloroaluminate Molten Salts.
Abstract
An urgent need exists for a high energy density secondary battery for applications such as electric vehicles and load leveling. This work&involved the synthesis of room temperature molten salts and the examination of the electrochemical and transport properties of these salts with the goal of developing a room temperature molten salt electrolyte for the sodium 1 nickel(ll) chloride battery. The high temperature design of the sodium I nickel(II) chloride battery is commonly referred to as the "Zebra Cell" and operates at 250 0C. The Zebra Cell consists of a liquid sodium anode, a beta-alumina ceramic electrolyte sodium aluminum chloride liquid electrolyte, and an iron cathode. An ambient temperature electrolyte would eliminate the need for the ceramic separator and allow the use 6f a solid sodium anode. The compatibility of the molten salts with the anode material (sodium) has been investigated using electroanalytical techniques such as cyclic voltammetry, chronoamperometry, and chronopotentionmetry. Three organic salts have been investigated: l-methyl-2-ethylimidazolium chloride (MEIC), 1 ,2-dimethyl3- propylimidazolium chloride (DMPIC), and l-methyl-2-propylimidazolium chloride (MPIC). Work has focused on the use of sodium as an anode and the conditions which provide the greatest coulombic efficiency on reduction/oxidation cycles.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1996
- Accession Number
- ADA342478
Entities
People
- Gary E. Gray
Organizations
- Georgia Tech