Primary and secondary room temperature molten salt electrochemical cells

✍ Scribed by G.F. Reynolds; C.J. Dymek Jr.

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 645 KB
• Volume: 15
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(85)80066-5

✦ Synopsis

Three primary cells (a, b, and c) and two secondary cell candidates (d and e) were examined in room temperature molten salt electrolytes containing either 1-methyl-3-ethylimidazolium chloride (MEICl) (a, b, d, and e), or 1-methyl-3-ethylimidazolium bromide (MEIBr) (c). (a) Al anode/AlCl,-MEICl (N = 0.37)//FeCl,-MEICl (N = 0.33)/W cathode (b) Al anode/AlCls-MEICl (N = 0.37)//WClbMEICl (N = 0.33)/W cathode (c) Al anode/AlBr,-MEIBr (N = 0.33)/Br2/RVC, Pt cathode (d) Zn anode/AlCls-MEICl (N = 0.33)//AIC!Is-MEICl (N = 0.60)/Al cathode (e) Cd anode/AlCl,-MEICl (N = 0.33)//AlCI,-MEICl (N = 0.60)/Al cathode where N is the mole fraction of aluminium halide in the melt. An IONAC@ anion exchange membrane separated the anolyte and catholyte solutions in cells (a) and (b), while in cells (d) and (e) a NAFION@ cation exchange membrane separated the anolyte and catholyte solutions. In cell (c) a phase boundary separated the anolyte and catholyte solutions, with reticulated vitreous carbon (RVC) acting as the anode current carrier.