Conductivity, Viscosity, and Dissolution Enthalpy of LiNTF2 in Ionic Liquid BMINTF2

被引:40
作者
Andriola, Angelo [1 ]
Singh, Kulwinder [1 ]
Lewis, James [1 ]
Yu, Lei [1 ]
机构
[1] Rowan Univ, Dept Chem & Biochem, Glassboro, NJ 08028 USA
关键词
LITHIUM SECONDARY BATTERIES; LI/LICOO2; CELL; ELECTROLYTES; DISCHARGE; SOLVENT;
D O I
10.1021/jp1044404
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The ionic conductivity, relative viscosity, and solution enthalpy of LiNTF2 and NaNTF2 solutions in ionic liquid BMINTF2 have been measured. We observed that the conductivity decreased and the viscosity increased when the Li+ and Na+ salts were dissolved in BMINTF2. We also observed that the dissolution is an exothermic process with a solution enthalpy of approximately -18.07 +4.61 kJ/mol. The experimental results indicate that the Li+ ion may associate with multiple NTF2- anions in the BMINTF2 solution to form a solvated complex.
引用
收藏
页码:11709 / 11714
页数:6
相关论文
共 33 条
[1]  
[Anonymous], 2005, ION MOBILITY SPECTRO, DOI DOI 10.1201/9781420038972
[2]  
Bagotsky VS, 2006, FUNDAMENTALS OF ELECTROCHEMISTRY, 2ND EDITION, P1
[3]   Linear free energy relationships between dissolution rates and molecular modeling energies of rhombohedral carbonates [J].
Duckworth, OW ;
Cygan, RT ;
Martin, ST .
LANGMUIR, 2004, 20 (07) :2938-2946
[4]   Room temperature molten salts as lithium battery electrolyte [J].
Garcia, B ;
Lavallée, S ;
Perron, G ;
Michot, C ;
Armand, M .
ELECTROCHIMICA ACTA, 2004, 49 (26) :4583-4588
[5]  
Gejji SP, 1999, J PHYS CHEM A, V103, P7474, DOI 10.1021/jp984474
[6]   NMR studies of cathode materials for lithium-ion rechargeable batteries [J].
Grey, CP ;
Dupré, N .
CHEMICAL REVIEWS, 2004, 104 (10) :4493-4512
[7]   Raman study of lithium coordination in EMI-TFSI additive systems as lithium-ion battery ionic liquid electrolytes [J].
Hardwick, Laurence J. ;
Holzapfel, Michael ;
Wokaun, Alexander ;
Novak, Petr .
JOURNAL OF RAMAN SPECTROSCOPY, 2007, 38 (01) :110-112
[8]   Ionic conduction and ion diffusion in binary room-temperature ionic liquids composed of [emim][BF4] and LiBF4 [J].
Hayamizu, K ;
Aihara, Y ;
Nakagawa, H ;
Nukuda, T ;
Price, WS .
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (50) :19527-19532
[9]   Alkylated imidazolium salt electrolyte for lithium cells [J].
Hayashi, K ;
Nemoto, Y ;
Akuto, K ;
Sakurai, Y .
JOURNAL OF POWER SOURCES, 2005, 146 (1-2) :689-692
[10]   Pure ionic liquid electrolytes compatible with a graphitized carbon negative electrode in rechargeable lithium-ion batteries [J].
Ishikawa, Masashi ;
Sugimoto, Toshinori ;
Kikuta, Manabu ;
Ishiko, Eriko ;
Kono, Michiyuki .
JOURNAL OF POWER SOURCES, 2006, 162 (01) :658-662