Electrochemical insertion of lithium, sodium, and magnesium in molybdenum(VI) oxide Spahr, M E [Paul Scherrer Inst., Electrochemistry Section, Villigen PSI (Switzerland)]; Novak, P [Paul Scherrer Inst., Electrochemistry Section, Villigen PSI (Switzerland)]; Haas, O [Paul Scherrer Inst., Electrochemistry Section, Villigen PSI (Switzerland)]; Nesper, R [Swiss Federal Inst. of Tech. (ETH), Lab. for Inorganic Chemistry, Zurich (Switzerland)] 25 ENERGY STORAGE; MOLYBDENUM OXIDES; LITHIUM COMPOUNDS; SODIUM COMPOUNDS; MAGNESIUM COMPOUNDS; ELECTROCHEMISTRY; ELECTRODES; CARBONIC ACID ESTERS; ELECTROLYTES; MOLTEN SALTS; CHLORIDES; ACETONITRILE; PERCHLORATES; ELECTRIC BATTERIES The electrochemical insertion of divalent magnesium cations into orthorhombic molybdenum(VI) oxide was studied with regard to their use as electroactive species in ion-transfer battery systems and compared to the insertion of Li{sup +} and Na{sup +}. Specific charges of up to 300 and 240 Ah kg{sup -1} were obtained in organic, propylene carbonate-based electrolytes for the lithium and sodium insertion, respectively, in the first reduction half-cycle. Reversible Mg{sup 2+} insertion could be demonstrated in a room temperature molten salt electrolyte consisting of 3 wt.% MgCl{sub 2}, 41 wt.% 1-ethyl-3-methylimidazolium chloride, and 56 wt.% AlCl{sub 3}. Specific charges of up to 160 Ah kg{sup -1} were obtained with MoO{sub 3} in the first reduction half-cycle. The Mg{sup 2+} insertion process can be enhanced using an organic electrolyte with traces of H{sub 2}O. In 1 M Mg(ClO{sub 4}){sub 2}/acetonitrile with 3 mol% of H{sub 2}O, specific charges of up to 210 Ah kg{sup -1} were measured in the first reduction. (orig.) Switzerland 1995-04-01 English Journal Article Journal Name: Journal of Power Sources; Journal Volume: 54; Journal Issue: 2; Conference: 7. international meeting on lithium batteries (IMLB-7), Cambridge, MA (United States), 15-20 May 1994; Other Information: PBD: Apr 1995 Medium: X; Size: pp. 346-351 https://doi.org/10.1016/0378-7753(94)02099-O [] 2 54 CONF-940568- Journal ID: JPSODZ; ISSN 0378-7753; TRN: CH95GI342 CHF; SCA: 250903; PA: CHF-95:0GI342; EDB-95:147762; SN: 95001456397 2010-12-29 123048