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Ion liquid electrolyte containing bi-(fluorosulfonic acid) imines ion and iodine ion, and application thereof

A technology of ionic liquid and fluorosulfonyl, applied in electrolytic capacitors, circuits, capacitors, etc., can solve high-risk problems

Active Publication Date: 2009-05-20
CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the use of highly dangerous potassium cyanide reagents in the synthesis process of TCB anions, the processing process is extremely dangerous, and people have been looking for other low-viscosity, low-cost ionic liquids to obtain efficient and thermally stable devices.

Method used

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  • Ion liquid electrolyte containing bi-(fluorosulfonic acid) imines ion and iodine ion, and application thereof
  • Ion liquid electrolyte containing bi-(fluorosulfonic acid) imines ion and iodine ion, and application thereof
  • Ion liquid electrolyte containing bi-(fluorosulfonic acid) imines ion and iodine ion, and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Embodiment 1: A kind of ionic liquid electrolyte containing two (fluorosulfonyl) imide ions and iodide ions

[0075] Blend 1-propyl-3-methylimidazole iodide, bis(fluorosulfonyl)imide 1-ethyl-3-methylimidazole (EMIFSI), and iodine at a molar ratio of 24:16:1.67 to form an electrolyte ;

Embodiment 2

[0076] Embodiment 2: A kind of ionic liquid electrolyte containing two (fluorosulfonyl) imide ions and iodide ions

[0077] Iodide N-methyl-N-allylpyrrolidine, bis(fluorosulfonyl)imide N-methyl-N-allylpyrrolidine, dicyanoamine N-methyl-N-allyl Base pyrrolidine, iodine is 18:18:4:1.67 blending to form electrolyte with molar ratio;

Embodiment 3

[0078] Embodiment 3: A kind of ionic liquid electrolyte containing two (fluorosulfonyl) imide ions and iodide ions

[0079] S-ethyltetrahydrothiophenium iodide is blended with bis(fluorosulfonyl)imide S-ethyltetrahydrothiophenium and iodine at a molar ratio of 1:0.5:0.03 to form an electrolyte.

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Abstract

The invention relates to an ion liquid electrolyte containing bi-(fluorosulfonic acid)imine ion and iodine ion and application thereof to a dye sensitized solar battery. The electrolyte is a composition prepared from the bi-(fluorosulfonic acid)imine ion([N(SO2F)2]<->), iodine ion liquid and simple substance iodine which are evenly mixed according to the blending ratio, or the bi-(fluorosulfonic acid)imine ion([N(SO2F)2]<->), the iodine ion liquid, the simple substance iodine and one or more than one of other ion liquid, additive, curing agent and solvent which are evenly mixed according to the blending ratio. When the ion liquid electrolyte is applied to the dye sensitized solar battery, a high-efficiency thermal stability device with photoelectric power conversion efficiency of 7.5 percent is obtained, thereby the ion liquid electrolyte containing TCB negative ion is not used.

Description

technical field [0001] The present invention relates to containing two (fluorosulfonyl) imide ions ([N(SO 2 F) 2 ] - ) and iodide ion-based ionic liquid electrolytes and their applications in dye-sensitized solar cells. Background technique [0002] Ionic liquids mainly refer to organic salts that are liquid at around room temperature or lower, and can also be their mixtures, they do not contain neutral molecules and usually have a melting point below 373K. Various compounds are known in the prior art as ionic liquids. For example, Hurley et al first disclosed solvent-free ionic liquids in a series of US patents (US2446331, US2446339 and US2446350). These "room temperature molten salts" are based on AlCl 3 and various salts of n-alkylpyridinium halides. Some review articles have been published on this topic in recent years (Welton T, Room-temperature ionic liquids. Solvents for synthesis and catalysis, Chem. Rev., 99 (8), 1999, 2071-2083; Dupont J et. al. Ionic liquid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/035H01G9/20H01M14/00
CPCY02E10/542
Inventor 曹祎明周志彬聂进张静王鹏
Owner CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
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