New ternary molten salt electrolyte based on alkali metal triflates

被引：11
|
作者：
Tu, Xiaohua [1 ]
Chu, Youqun [1 ]
Ma, Chunan [1 ]
机构：
[1] Zhejiang Univ Technol, State Key Lab Breeding Base Green Chem Synth Tech, Coll Chem Engn & Mat Sci, Hangzhou 310032, Zhejiang, Peoples R China
来源：
IONICS | 2010年 / 16卷 / 01期
关键词：
Molten salt; Alkali metal triflate; Thermal property; Ionic conductivity; Electrochemical window; DECOMPOSITION KINETICS; LIBR-KBR; BEHAVIOR; ION;
D O I：
10.1007/s11581-009-0390-9
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：
A novel molten salt electrolyte composed of lithium triflate (CF3SO3Li, LiTf), sodium triflate (CF3SO3Na, NaTf), and potassium triflate (CF3SO3K, KTf) has been prepared and characterized by thermogravimetry/differential thermal analysis (TG/DTA), electrochemical impedance spectroscopy (EIS), and cyclic voltammetry. TG/DTA shows that the electrolyte was thermally stable when the temperature was under 400 A degrees C. Its thermal stability gradually decreased with increase of LiTf concentration. The ionic conductivity of molten salt electrolyte has been evaluated by EIS and its value exceeds 10(-2) Scm(-1) in the temperature range from 230 to 270 A degrees C. The electrochemical window of the electrolyte at the molar ratio of 0.5/1/1 is about 4.7 V at 250 A degrees C. This electrolyte with low melting point exhibits promising characteristics for high-temperature lithium batteries.
引用
收藏
页码：81 / 84
页数：4
相关论文
共 50 条
  • [41] Molten iodide salt electrolyte for low-temperature low-cost sodium-based liquid metal battery
    Gong, Qing
    Ding, Wenjin
    Bonk, Alexander
    Li, Haomiao
    Wang, Kangli
    Jianu, Adrian
    Weisenburger, Alfons
    Bund, Andreas
    Bauer, Thomas
    JOURNAL OF POWER SOURCES, 2020, 475
  • [42] New Deoxidation Method of Titanium Using Metal Filter in Molten Salt
    Akihiro Iizuka
    Takanari Ouchi
    Toru H. Okabe
    Metallurgical and Materials Transactions B, 2022, 53 : 1371 - 1382
  • [43] The New Concept for Electrowinning Process of Liquid Titanium Metal in Molten Salt
    Takenaka, Toshihide
    Suzuki, Takayuki
    Ishikawa, Masahiro
    Fukasawa, Eiichi
    Kawakami, Masahiro
    Electrochemistry, 67 (06): : 661 - 668
  • [44] The new concept for electrowinning process of liquid titanium metal in molten salt
    Takenaka, T
    Suzuki, T
    Ishikawa, M
    Fukasawa, E
    Kawakami, M
    ELECTROCHEMISTRY, 1999, 67 (06) : 661 - 668
  • [45] New Deoxidation Method of Titanium Using Metal Filter in Molten Salt
    Iizuka, Akihiro
    Ouchi, Takanari
    Okabe, Toru H.
    METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2022, 53 (03): : 1371 - 1382
  • [46] Alkali metal / solid electrolyte interface
    Bruce, Peter
    Kasemchainan, Jitti
    Zekoll, Stefanie
    Jolly, Dominic Spencer
    Ning, Ziyang
    Marriner-Edwards, Cassian
    Richter, Felix
    Hartley, Gareth
    Hekselman, A. K. Ola
    Kuss, Christian
    Armstrong, David E. J.
    Cai, Dongyu
    Wallace, Robert J.
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2019, 257
  • [47] Transpassive dissolution of ferritic steels in a molten salt electrolyte
    Betova, I
    Bojinov, M
    Kanazirski, I
    Tzvetkoff, T
    ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (11) : 1206 - 1211
  • [48] LIQUID JUNCTION POTENTIAL BETWEEN DIFFERENT SOLVENTS - A JUNCTION WITH AN ALKALI-METAL SALT AS ELECTROLYTE
    IZUTSU, K
    NAKAMURA, T
    AOKI, Y
    JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1992, 334 (1-2): : 213 - 222
  • [49] SEMICONDUCTION IN METAL MOLTEN SALT MIXTURES
    ICHIKAWA, K
    THOMPSON, JC
    PHILOSOPHICAL MAGAZINE, 1972, 26 (02): : 483 - &
  • [50] Semi-empirical Density Estimations for Binary, Ternary and Multicomponent Alkali Nitrate-Nitrite Molten Salt Mixtures
    Bauer, Thomas
    Bonk, Alexander
    INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2018, 39 (12)
12345