Electrolyte compositions, methods of making and battery devices formed there from

A technology of electrolyte and composition, applied in the field of electrolyte composition, can solve problems such as limited usefulness application

Inactive Publication Date: 2015-10-07
伊赛欧尼克公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These properties limit their usefulness as well as their application

Method used

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  • Electrolyte compositions, methods of making and battery devices formed there from
  • Electrolyte compositions, methods of making and battery devices formed there from
  • Electrolyte compositions, methods of making and battery devices formed there from

Examples

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Embodiment approach

[0284] Table 12

[0285]

[0286] Another preferred exemplary embodiment includes a phosphonium ionic liquid composition consisting of the combination of cations and anions shown in Table 13 below:

[0287] Table 13

[0288]

[0289] In some embodiments, further examples of suitable phosphonium ionic liquid compositions include, but are not limited to: di-n-propylethylmethylphosphonium bis-(trifluoromethylsulfonyl)imide; n-butyl-n-propyl phenylethylmethylphosphonium bis-(trifluoromethylsulfonyl)imide; n-hexyl n-butylethylphosphonium bis-(trifluoromethylsulfonyl)imide, etc.

[0290] Illustrative examples of suitable phosphonium ionic liquid compositions further include, but are not limited to: 1-ethyl-1-methylphosphonium cyclopentane bis-(trifluoromethylsulfonyl)imide; n-propylmethylsulfonyl)imide; phosphonium phosphonium bis-(trifluoromethylsulfonyl)imide; n-butylmethylphosphonium phosphonium bis-(trifluoromethylsulfonyl)imide; n-hexylmethylphosphonium cyclopentane al...

Embodiment 1

[0455] Phosphonium ionic liquids were prepared. AgSO 3 CF 3 Add to a 50ml round bottom (Rb) flask and assemble to a 3cm swivel frit. Empty the flask and place it in the glove box. In the glove box, di-n-propylethylmethylphosphonium iodide was added, and the flask was reassembled, placed in the vacuum line, evacuated, and vacuumed into anhydrous THF. The flask was allowed to warm to room temperature, then heated to 40 °C for 2 hours. This resulted in the formation of a pale green beaded solid. The solid was removed by filtration. This produced a pearly milky white solution. Volatile material was removed under high vacuum by heating using a 30°C hot water bath. This gave a yield of 0.470 g of white crystalline material. The material was subjected to thermogravimetric analysis (TGA), and the results are shown in Figure 7 middle.

Embodiment 2

[0457] Further phosphonium ionic liquids were prepared. Add di-n-propylethylmethylphosphonium iodide to a 100 ml flask of Rb in the glove box, then remove and dissolve in 50 ml of DI H 2 O middle. Add AgO 2 CCF 3 To this solution, a yellow bead-like precipitate was produced immediately. After stirring for 2 hours, AgI was removed by filtration and washed with 5 ml of DI H 2 O wash the filter cake 3 times. The bulk water was removed by rotary evaporator. This produces a clear, low viscosity liquid, which is then dried under vacuum with heating and stirring. This results in curing of the material. Gentle heating of the white solid in a warm water bath gave a liquid that appeared to melt just above room temperature. This experiment yielded 0.410 g of material. Figure 8A The reaction scheme is depicted. The material was subjected to thermogravimetric analysis (TGA) and evolved gas analysis (EGA) tests, and the results are shown in Figure 8B with Figure 8C middle.

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Abstract

The invention generally encompasses phosphonium ionic liquids, salts, compositions and their use in many applications, including but not limited to: as electrolytes in electronic devices such as memory devices including static, permanent and dynamic random access memory, as electrolytes in energy storage devices such as batteries, electrochemical double layer capacitors (EDLCs) or supercapacitors or ultracapacitors, electrolytic capacitors, as electrolytes in dye-sensitized solar cells (DSSCs), as electrolytes in fuel cells,, as a heat transfer medium,, among other applications. In particular, the invention generally relates to phosphonium ionic liquids, salts, compositions, wherein the compositions exhibit superior combination of thermodynamic stability, low volatility, wide liquidus range, ionic conductivity, and electrochemical stability. The invention further encompasses methods of making such phosphonium ionic liquids, salts, compositions, operational devices and systems comprising the same.

Description

technical field [0001] The present invention generally includes electrolyte compositions based on phosphonium ionic liquids, salts, compositions and their use in a number of applications, including but not limited to: as electronic devices such as memory devices, including static, permanent and dynamic random access memories Electrolytes, as electrolytes in energy storage devices such as batteries, electrochemical double-layer capacitors (EDLCs) or supercapacitors (supercapacitors) or ultracapacitors (ultracapacitors), electrolytic capacitors, as electrolytes in dye-sensitized solar cells (DSSCs), as Electrolytes in fuel cells, as heat transfer media, high temperature reaction and / or extraction media, and other applications. In particular, the present invention relates to phosphonium ionic liquids, salts, compositions and molecules with structural features, wherein these compositions exhibit a desired combination of at least two or more of the following: thermodynamic stabilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0567H01M10/056H01M8/10H01M4/48H01M4/485H01M4/505H01M4/525H01M4/58H01M4/587H01M10/052H01M10/0568H01M10/0569
CPCH01M10/0567H01M10/052H01M10/0568H01M2300/0045Y02E60/122Y02E60/50Y02E60/521Y02E60/10
Inventor 约恩·H·希恩本杰明·L·鲁珀特莱维·J·厄文利安娜·比尔什尔帕·A·沃利卡石志超
Owner 伊赛欧尼克公司
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