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Ionic liquids and soft viscous crystals

一种离子液体、粘性的技术，应用在结构零件、活性物质电极、电化学发生器等方向，能够解决稳定性存在问题等问题，达到蓄电效率好、抑制冷却的需要性、效率高的效果

Active Publication Date: 2020-04-28
NAT INST OF ADVANCED IND SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Organic solvent electrolytes currently used as electrolytes for lithium secondary batteries can operate at low temperatures, but there are problems in stability at high temperatures because volatile or flammable organic solvents are used as electrolyte solutions

Method used

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  • Ionic liquids and soft viscous crystals
  • Ionic liquids and soft viscous crystals
  • Ionic liquids and soft viscous crystals

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0082] Production Example 1: Anion (f 3 C) Synthesis

[0083] As a commercially available product, 58.4 mg of compound (2) obtained from ALCATRAZ CHEMICALS (Gujarat, INDIA) and 194 mg of SF 4 The reaction gave 51.6 mg of compound (3). 92.4 mg of compound (3) was reacted with excess potassium carbonate and introduced into 93.9 mg of f 3 Potassium salt of C anion (4).

Embodiment 1

[0085] Make the f obtained in Manufacturing Example 1 3 Potassium salt of C anion (4) with equimolar [EMI] + 、[DEME] + 、[Py 13 ] + or [PP 13 ] + The bromide reacts and carries out cation exchange, thus obtains the ionic liquid ([EMI][f] of the present invention as the target 3 C]) or viscous crystals ([DEME][f 3 C], [Py 13 ][f 3 C] or [PP 13 ][f 3 C]).

[0086] The physical property values ​​of the obtained ionic liquids or viscous crystals are shown below. In addition, the melting point, glass transition temperature, and solid-solid phase transition temperature are shown in Table 1.

[0087] 1)[EMI][f 3 C]

[0088] 1 H-NMR (CD 3 CN,300MHz):δ=1.45(t,J=7.2Hz,3H),3.81(s,3H), 4.16(q,J=7.2Hz,2H),7.32(s,1H),7.37(s,1H ),8.39(s,1H): 19 F-NMR (CD 3 CN,283MHz):δ=71.5(s,3F).

[0089] Elemental analysis measured value (theoretical value): H 2.99% (2.98%); C 22.71% (22.58%); N 7.58% (7.52%); F 15.36% (15.31%). The ion conductivity at 25°C: 6.2 mS cm -1 . Viscosity at...

Embodiment 2

[0100] Make the f obtained in Manufacturing Example 1 3 Potassium salt of C anion (4) and equimolar [N 6111 ] + , [N 6222 ] + , [N 1111 ] + , [N 2222 ] + 、[Py 12 ] + , [C 4 mim] + , [C 6 mim] + The bromide reacts and carries out cation exchange, thereby obtains the [N of the ionic liquid of the present invention as the target 6111 ][f 3 C], [N 6222 ] + [f 3 C], [N 1111 ][f 3 C], [N 2222 ][f 3 C], [PP 14 ][f 3 C], [Py 12 ][f 3 C], [Py 14 ][f 3 C], [C 1 mim][f 3 C], [C 4 mim][f 3 C], [C 6 mim][f 3 C]. The physical property values ​​of the obtained ionic liquid or viscous crystal are shown below. In addition, the melting point, glass transition temperature, and solid-solid phase transition temperature are shown in Table 1.

[0101] 1)[N 1111 ][f 3 C],

[0102] 1 H NMR (DMSO-d6, 300MHz): δ=3.06(s, 12H); 19 F NMR (DMSO-d6, 283MHz): δ=71.9(s, 3F). Thermal decomposition temperature (when reduced by 10%): 348℃.

[0103] 2)[N 2222 ][f 3 C],

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Abstract

The present invention provides a kind of ionic liquid or flexible viscous crystal, it is the ionic liquid or soft viscous crystal that is made up of anion and cation, wherein, anion contains [C(SO 2 f) 3 ] ‑ , the cation contains + ), N,N‑diethyl‑N‑methyl‑(2‑methoxyethyl) ammonium ([DEME] + ), N-methyl-N-propylpyrrolidinium ([Py 13 ] + ), N‑Methyl‑N‑Propylpiperidinium ([PP 13 ] + ), Tetramethylammonium ([N 1111 ] + ), tetraethylammonium ([N 2222 ] + ), Trimethylhexylammonium ([N 6111 ] + ), triethylhexylammonium ([N 6222 ] + ), N-methyl-N-ethylpyrrolidinium ([Py 12 ] + ), 1‑butyl‑3‑methylimidazolium ([C 4 mim] + ) and 1‑hexyl‑3‑methylimidazolium ([C 6 mim] + ) at least one of the group consisting of.

Description

technical field [0001] The invention relates to an ionic liquid or soft viscous crystal. The invention also relates to a non-aqueous electrolyte for a lithium secondary battery and the lithium secondary battery. Background technique [0002] In lithium secondary batteries, use at low temperatures is emphasized, and the use of ionic liquids as electrolytes has been proposed (Patent Document 1). On the other hand, there is an increasing demand for power generation systems that can be used in disasters such as the Great East Japan Earthquake and other disasters such as photovoltaic power generation and combined heat and power systems, including the storage type lithium secondary batteries for vehicles. Lithium secondary batteries using organic solvents that have been put into practical use generate heat during charge and discharge, and therefore, safety measures are required to prevent them from reaching high temperatures. In particular, recently, the demand for large-capacit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C309/80C07C217/08C07D207/04C07D233/58C07D295/02H01M10/052H01M10/0568
CPCC07D233/58C07C309/80C07C217/08H01M10/052C07C211/63C07D295/037H01M10/0568Y02E60/10C07D207/04C07D295/02H01M4/13H01M10/056H01M10/0561H01M10/0566H01M2004/026H01M2004/027H01M2004/028
Inventor 松本一水门润治王鹏程
Owner NAT INST OF ADVANCED IND SCI & TECH
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