Plastic-polymer composite electrolytes: Novel soft matter electrolytes for rechargeable lithium batteries

被引：51
作者：
Patel, Monalisa [1 ]
Bhattacharyya, Aninda J. [1 ]
机构：
[1] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 12期
关键词：
Solid composite electrolytes; Plastic crystals; Ionic conductivity; Mechanical property; Rechargeable lithium battery;
D O I：
10.1016/j.elecom.2008.10.009
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
We present here a soft matter solid composite electrolyte obtained by inclusion of a polymer in a semisolid organic plastic lithium salt electrolyte. Compared to lithium bis-trifluoromethanesulfonimide-succinonitrile (LiTFSI-SN), the (100 - x)%-[LiTFSI-SN]: x%-P (P: polyacrylonitrile (PAN), polyethylene oxide (PEO), polyethylene glycol dimethyl ether (PEG)) composites possess higher ambient temperature ionic conductivity, higher mechanical strength and wider electrochemical window. At 25 degrees C, ionic conductivity of 95%-[0.4 M LiTFSI-SN]: 5%-PAN was 1.3 x 10(-3) Omega(-1) cm(-1) which was twice that of LiTFSI-SN. The Young's modulus (Y) increased from Y -> 0 for LiTFSI-SN to a maximum similar to 1.0 MPa for (100 - x)%-[0.4 M LiTFSI-SN]: x%-PAN samples. The electrochemical voltage window for composites was approximately 5 V (Li/Li+). Excellent galvanostatic charge/discharge cycling performance was obtained with composite electrolytes in Li vertical bar LiFePO4 cells without any separator. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1912 / 1915
页数：4
相关论文
共 16 条
  • [1] Plastic crystal-lithium batteries: An effective ambient temperature all-solid-state power source
    Abouimrane, A
    Abu-Lebdeb, Y
    Alarco, PJ
    Armand, M
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (07) : A1028 - A1031
  • [2] The plastic-crystalline phase of succinonitrile as a universal matrix for solid-state ionic conductors
    Alarco, PJ
    Abu-Lebdeh, Y
    Abouimrane, A
    Armand, M
    [J]. NATURE MATERIALS, 2004, 3 (07) : 476 - 481
  • [3] Investigation of swelling phenomena in PEO-based polymer electrolytes - II. Chemical and electrochemical characterization
    Appetecchi, GB
    Aihara, Y
    Scrosati, B
    [J]. SOLID STATE IONICS, 2004, 170 (1-2) : 63 - 72
  • [4] Second phase effects on the conductivity of non-aqueous salt solutions: "Soggy sand electrolytes"
    Bhattacharyya, AJ
    Maier, J
    [J]. ADVANCED MATERIALS, 2004, 16 (9-10) : 811 - +
  • [5] Nanomaterials for rechargeable lithium batteries
    Bruce, Peter G.
    Scrosati, Bruno
    Tarascon, Jean-Marie
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (16) : 2930 - 2946
  • [6] Nanocomposite polymer electrolytes for lithium batteries
    Croce, F
    Appetecchi, GB
    Persi, L
    Scrosati, B
    [J]. NATURE, 1998, 394 (6692) : 456 - 458
  • [7] DAS S, 2008, CHEM MAT UNPUB
  • [8] The role of carbon black distribution in cathodes for Li ion batteries
    Dominko, R
    Gaberscek, M
    Drofenik, J
    Bele, M
    Pejovnik, S
    Jamnik, J
    [J]. JOURNAL OF POWER SOURCES, 2003, 119 : 770 - 773
  • [9] Nanostructured materials for electrochemical energy conversion and storage devices
    Guo, Yu-Guo
    Hu, Jin-Song
    Wan, Li-Jun
    [J]. ADVANCED MATERIALS, 2008, 20 (15) : 2878 - 2887
  • [10] Fast ion conduction in molecular plastic crystals
    Long, S
    MacFarlane, DR
    Forsyth, M
    [J]. SOLID STATE IONICS, 2003, 161 (1-2) : 105 - 112
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