Complex structures and electrochemical properties of magnesium electrolytes

被引:40
作者
Nakayama, Yuri [1 ]
Kudo, Yoshihiro [2 ]
Oki, Hideki [1 ]
Yamamoto, Kenta [1 ]
Kitajima, Yoshinori [3 ]
Noda, Kazuhiro [1 ]
机构
[1] Sony Corp, Solid State Ion Lab, Kanagawa 2430021, Japan
[2] Sony Corp, Ctr Mat Anal, Mat Labs, Kanagawa 2430021, Japan
[3] High Energy Accelerator Res Org, Inst Mat Struct Sci, Photon Factory, Tsukuba, Ibaraki 3050801, Japan
关键词
D O I
10.1149/1.2956022
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Magnesium organohaloaluminate in tetrahydrofuran [0.25 mol/L Mg(AlCl(2)EtBu)(2)/THF, Et:C(2)H(5),Bu:C(4)H(9)] is an electrolyte solution that is able to deposit and dissolve magnesium electrochemically and reversibly at room temperature. It has been reported that the electrochemical window is ruled by Lewis acidity of the aluminum compounds involved, and some complex species formed in the electrolyte have been suggested based on the analysis of nuclear magnetic resonances and Raman spectroscopy. Because in these analytical methods there are not enough controls to identify all the included compounds, neither the complete complex structures nor the mechanism of the reversible reaction has been revealed yet. Here, we show the complete complex structures in this electrolyte directly observed by the X-ray absorption fine structure measurements, which reveal the reversible equilibrium reaction as well as the other electrochemical properties of this electrolyte. (C) 2008 The Electrochemical Society.
引用
收藏
页码:A754 / A759
页数:6
相关论文
共 16 条
[1]   Magnesium and bromine eXAFS studies of Grignard compounds in solution [J].
Abraham, I ;
Horner, W ;
Ertel, TS ;
Bertagnolli, H .
POLYHEDRON, 1996, 15 (22) :3993-4001
[2]   Prototype systems for rechargeable magnesium batteries [J].
Aurbach, D ;
Lu, Z ;
Schechter, A ;
Gofer, Y ;
Gizbar, H ;
Turgeman, R ;
Cohen, Y ;
Moshkovich, M ;
Levi, E .
NATURE, 2000, 407 (6805) :724-727
[3]   Electrolyte solutions for rechargeable magnesium batteries based on organomagnesium chloroaluminate complexes [J].
Aurbach, D ;
Gizbar, H ;
Schechter, A ;
Chusid, O ;
Gottlieb, HE ;
Gofer, Y ;
Goldberg, I .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (02) :A115-A121
[4]   Spectroelectrochemical studies of magnesium deposition by in situ FTIR spectroscopy [J].
Aurbach, D ;
Turgeman, R ;
Chusid, O ;
Gofer, Y .
ELECTROCHEMISTRY COMMUNICATIONS, 2001, 3 (05) :252-261
[5]   X-RAY-ABSORPTION SPECTROSCOPY OF AMORPHOUS SOLIDS, LIQUIDS, AND CATALYTIC AND BIOCHEMICAL SYSTEMS - CAPABILITIES AND LIMITATIONS [J].
BERTAGNOLLI, H ;
ERTEL, TS .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 1994, 33 (01) :45-66
[6]   COORDINATION OF WATER TO MAGNESIUM CATIONS [J].
BOCK, CW ;
KAUFMAN, A ;
GLUSKER, JP .
INORGANIC CHEMISTRY, 1994, 33 (03) :419-427
[7]   Alkyl group transmetalation reactions in electrolytic solutions studied by multinuclear NMR [J].
Gizbar, H ;
Vestfrid, Y ;
Chusid, O ;
Gofer, Y ;
Gottlieb, HE ;
Marks, V ;
Aurbach, D .
ORGANOMETALLICS, 2004, 23 (16) :3826-3831
[8]   Improved electrolyte solutions for rechargeable magnesium batteries [J].
Gofer, Y ;
Chusid, O ;
Gizbar, H ;
Viestfrid, Y ;
Gottlieb, HE ;
Marks, V ;
Aurbach, D .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (05) :A257-A260
[9]   EXAFS investigation of metal organic synthesis tools [J].
Hörner, W ;
Bertagnolli, H .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2002, 649 (02) :128-135
[10]   Recent performance of the soft X-ray (70-1900 eV) bending magnet beamline 11A at the Photon Factory [J].
Kitajima, Y ;
Yonamoto, Y ;
Amemiya, K ;
Tsukabayashi, H ;
Ohta, T ;
Ito, K .
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1999, 101 :927-929