Gel Polymer Electrolyte Composition Incorporating Adiponitrile as a Solvent for High-Performance Electrical Double-Layer Capacitor

被引:27
作者
Bhat, Md Yasir [1 ]
Yadav, Neetu [1 ]
Hashmi, S. A. [1 ]
机构
[1] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India
关键词
adiponitrile; gel polymer electrolyte; lithium salt; ionic conductivity; activated carbon; electrical double-layer capacitor; ALIPHATIC NITRILE SOLVENTS; IONIC LIQUID; ACTIVATED CARBON; BINARY-MIXTURES; SUPERCAPACITOR; SUCCINONITRILE; SEPARATOR;
D O I
10.1021/acsaem.0c01690
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
Adiponitrile (ADN) has recently received extensive attention as a solvent for energy storage devices due to its significantly high flash point and stabilizing ability against oxidation of electrolytes at high voltages. A free standing and flexible gel polymer electrolyte (GPE) film has been reported containing a mixture of ADN and lithium bis(trifluoromethane sulfonyl)imide (LiTFSI) immobilized in poly(vinylidene fluoride-co-hexafluoropropylene) for application in electrical double-layer capacitors (EDLCs). The GPE containing 5 mol % LiTFSI in ADN shows excellent characteristics in terms of thermal stability (similar to 120 degrees C), wider electrochemical stability window (similar to 3.92 V versus Ag), and high ionic conductivity (similar to 1.97 X 10(-3) S cm(-1) at room temperature). The EDLC is fabricated with an ADN-based GPE film sandwiched between symmetric electrodes of activated carbon (derived from a waste biomass pinecone). The EDLC has been electrochemically characterized by electrochemical impedance spectroscopy, cyclic voltammetry, and charge-discharge tests. The specific capacitance of the capacitor has been observed to be 225-241 F g(-1), which corresponds to a specific energy of 31.2-34.0 Wh kg(-1) and a maximum specific power of 15.4-18.0 kW kg(-1) . The EDLC illustrates stable performance for similar to 20000 cycles of galvanostatic charge-discharge with similar to 80% capacitance retention and 96-100% Coulombic efficiency. The capacitor gives stable performance for a temperature range of -30 to 90 degrees C.
引用
收藏
页码:10642 / 10652
页数:11
相关论文
共 64 条
[51]   Flexible electric double-layer capacitors fabricated with micro-/mesoporous carbon electrodes and plastic crystal incorporated gel polymer electrolytes containing room temperature ionic liquids [J].
Suleman, Mohd ;
Kumar, Yogesh ;
Hashmi, S. A. .
JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2015, 19 (05) :1347-1357
[52]   Electrochemical characteristics and impedance spectroscopy studies of carbon-carbon supercapacitors [J].
Taberna, PL ;
Simon, P ;
Fauvarque, JF .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2003, 150 (03) :A292-A300
[53]  
Tarascon J.M., 2015, Electrochemical energy storage
[54]   An all-solid-state-supercapacitor possessing a non-aqueous gel polymer electrolyte prepared using a UV-assisted in situ polymerization strategy [J].
Vijayakumar, Vidyanand ;
Anothumakkool, Bihag ;
Torris, Arun A. T. ;
Nair, Sanoop B. ;
Badiger, Manohar V. ;
Kurungot, Sreekumar .
JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (18) :8461-8476
[55]   Electrolytes for electrochemical energy storage [J].
Xia, Lan ;
Yu, Linpo ;
Hu, Di ;
Chen, George Z. .
MATERIALS CHEMISTRY FRONTIERS, 2017, 1 (04) :584-618
[56]   Mesoporous carbons: recent advances in synthesis and typical applications [J].
Xin, Wang ;
Song, Yonghui .
RSC ADVANCES, 2015, 5 (101) :83239-83285
[57]   Nonaqueous, Redox-Active Gel Polymer Electrolyte for High-Performance Supercapacitor [J].
Yadav, Neetu ;
Yadav, Nitish ;
Singh, Manoj K. ;
Hashmi, Safir A. .
ENERGY TECHNOLOGY, 2019, 7 (09)
[58]   High performance quasi-solid-state supercapacitors with peanut-shell- derived porous carbon [J].
Yadav, Neetu ;
Singh, Manoj K. ;
Yadav, Nitish ;
Hashmi, S. A. .
JOURNAL OF POWER SOURCES, 2018, 402 :133-146
[59]   Optimization of porous polymer electrolyte for quasi-solid-state electrical double layer supercapacitor [J].
Yadav, Nitish ;
Mishra, Kuldeep ;
Hashmi, S. A. .
ELECTROCHIMICA ACTA, 2017, 235 :570-582
[60]  
Yu A., 2013, ELECTROCHEMICAL SUPE