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南方科技大学公共卫生及应急管理学院2025级博士研究生招生报考通知

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[资源] Nonaqueous Electrolyte Development for Electrochemical Capacitors

不知道以前有人发过没，关于超级电容器电解液的研究资料
《Nonaqueous Electrolyte Development for Electrochemical Capacitors》
T. R. Jow K. Xu S. P. Ding September 1999
Work Performed Under Contract No. DE-AI07-96ID13451
For
U.S. Department of Energy
Assistant Secretary for
Energy Research
Washington, DC
By
U.S. Army Research Laboratory
Adelphi, MD

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Contents
Executive Summary ............................................................................ 1
1. Introduction ................................................................................... 3
1.1 The Importance of Electrolyte ..................................................... 3
1.2 Desired Properties and Controlling Parameters ........................... 5
1.3 State-of-the-Art Nonaqueous Electrolytes ................................... 5
1.4 Recent Development ................................................................... 5
Electrolytes Based on Quaternary Ammonium Salts ......................... 5
Electrolytes Based on Cyclic Aromatic Imidazolium Salts .................. 6
1.5 Objective of This Development ................................................... 7
2. Synthesis of New Asymmetric Quaternary Ammonium Salts......... 8
2.1 Methods of Syntheses .................................................................. 8
2.2 Examples ....................................................................................... 9
2.3 Structure Identification ................................................................ 12
3. Experimental .................................................................................. 15
3.1 Materials Preparation ................................................................... 15
3.2 Measurements .............................................................................. 16
Melting Point (or Decomposition Temperatures) and Solubility .......... 16
Electrical Conductivity ......................................................................... 16
Electrochemical Stability Window ........................................................ 16
Cell Testing ........................................................................................... 16
4. Results and Discussion..................................................................... 18
4.1 Melting Point and Solubility ........................................................... 18
4.2 Conducitvity .................................................................................... 20
Conductivity of Electrolytes Containing Et4NBF4 and Et4NPF6 ............ 20
Conductivity of Electrolytes Containing Asymmetric Quaternary Ammonium Salts ... 20
4.3 Electrochemical Stability ............................................................................... 24
Electrochemical Stability versus Glassy Carbon.................................................. 24
Electrochemical Stability versus Porous Activated Carbon Electrodes ............... 26
4.4 Capacitance ................................................................................... .............. 30
4.5 A Comparison of ARL Electrolytes With the State-of-the-Art Electrolytes .... 30
4.6 Cell Performance .......................................................................................... 30
5. Conclusions and Future Perspective .............................................................. 32
References .......................................................................................................... 33