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Ionic liquid compound, preparation method thereof, ionic liquid polymer, use of ionic liquid polymer and polymer solid electrolyte containing ionic liquid polymer

A technology of ionic liquids and compounds, applied in the field of polymer solid electrolytes, can solve the problems of slow ion migration and low conductivity

Active Publication Date: 2018-04-06
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present disclosure is to provide an ionic liquid compound, a preparation method thereof, an ionic liquid polymer and a polymer solid electrolyte containing the ionic liquid polymer, and the polymer solid electrolyte containing the ionic liquid polymer can solve current problems. Some polymer solid electrolytes have technical problems of slow ion migration and low conductivity

Method used

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  • Ionic liquid compound, preparation method thereof, ionic liquid polymer, use of ionic liquid polymer and polymer solid electrolyte containing ionic liquid polymer
  • Ionic liquid compound, preparation method thereof, ionic liquid polymer, use of ionic liquid polymer and polymer solid electrolyte containing ionic liquid polymer
  • Ionic liquid compound, preparation method thereof, ionic liquid polymer, use of ionic liquid polymer and polymer solid electrolyte containing ionic liquid polymer

Examples

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preparation example Construction

[0065] Optionally, the preparation method of the compound shown in formula (9) comprises: making the compound shown in formula (10) contact with oxidizing agent under oxidation reaction condition:

[0066]

[0067] In formula (10), Z, k, R f1 , R f2 , R f3 and R f has the same definition as above.

[0068] Optionally, the oxidizing agent can be at least one selected from peracetic acid, perbenzoic acid, m-chloroperbenzoic acid and trifluoroperacetic acid, and the molar ratio of the compound shown in formula (10) to the oxidizing agent can be 1 : (1-3).

[0069] Optionally, the conditions of the oxidation reaction are as follows: the reaction temperature is 0-200°C, the reaction time is 1-24h, and the solvent is at least one of toluene, chloroform and dichloromethane.

[0070] Optionally, the preparation method of the compound shown in formula (10) comprises: make the compound shown in formula (11) and the compound shown in formula (12) or the compound shown in formula ...

Embodiment 1

[0174]

[0175] Take 2.0266g (10mmol) of p-vinylbenzenesulfonamide, 2.3794g (20mmol) of thionyl chloride, and 1.3982g (12mmol) of chlorosulfonic acid at 100°C for 12h to obtain compound 1a (2.5357g, yield 90%) ; 1 H NMR (400MHz, CDCl 3 , ppm), δ=7.88(d,2×1H), 7.58(d,2×1H), 6.63(q,1H), 5.61(q,1H), 5.18(q,1H), 2.0(s,1H );

[0176] Take 2.8174g (10mmol) of compound 1a and 2.1451g (12mmol) of SbF 3 Reacted at 60°C for 12h to obtain compound 1b (2.3875g, yield 90%); 1 H NMR (400MHz, CDCl 3 , ppm), δ=7.88(d,2×1H), 7.58(d,2×1H), 6.63(q,1H), 5.61(q,1H), 5.18(q,1H), 2.0(s,1H );

[0177] Take 2.6528g (10mmol) of compound 1b and 1.3812g (10mmol) PhCO 3 H, 1.3821g (10mmol)K 2 CO 3 Reacted at 25°C for 12h to obtain compound 1c (2.8743g, yield 90%); 1 H NMR (400MHz, CDCl 3, ppm), δ=7.86(d,2×1H), 7.47(d,2×1H), 3.82(t,1H), 2.83(d,2H);

[0178] Take 3.1937g (10mmol) of compound 1c and 1.6128g (11mmol) of 1-ethyl-3-methylimidazole chloride to react at 25°C for 12h to obtain the i...

Embodiment 2

[0180]

[0181] Take 1.8718g (10mmol) of potassium trifluoromethanesulfonamide monohydrogen and react with 2.2293g (11mmol) of p-vinylbenzenesulfonyl chloride at 80°C for 12h to obtain compound 2a (2.8376g, yield 90%); 1 H NMR (400MHz, CDCl 3 , ppm), δ=7.88(d,2×1H), 7.58(d,2×1H), 6.63(q,1H), 5.61(q,1H), 5.18(q,1H), 2.0(s,1H );

[0182] Take 3.1529g (10mmol) of compound 2a and 1.3812g (10mmol) PhCO 3 H, 1.3821g (10mmol)K 2 CO 3 Reacted at 25°C for 12h to obtain compound 2b (3.3244g, yield 90%); 1 H NMR (400MHz, CDCl 3 , ppm), δ=7.86(d,2×1H), 7.47(d,2×1H), 3.82(t,1H), 2.83(d,2H);

[0183] 3.6938g (10mmol) of compound 2b was reacted with 1.6128g (11mmol) of 1-ethyl-3-methylimidazole chloride at 25°C for 12h to obtain the ionic liquid compound M2 of this example (3.9731g, yield 90 %); 1 H NMR (400MHz, CDCl 3 , ppm), δ=8.94(s,1H), 7.86(d,2×1H), 7.74(s,1H), 7.67(s,1H), 7.47(d,2×1H), 4.38(q,2H ), 4.03(s,3H), 3.82(t,1H), 2.83(d,2H), 1.56(t,3H).

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Abstract

The invention relates to an ionic liquid compound, a preparation method thereof, an ionic liquid polymer, use of the ionic liquid polymer and polymer solid electrolyte containing the ionic liquid polymer and particularly provides an ionic liquid compound with the structure presented by a formula (1) (shown in the description), a preparation method of the ionic liquid compound, an ionic liquid polymer with the structure represented by a formula (25) (shown in the description) and a preparation method of the ionic liquid polymer. Anion centers of the ionic liquid compound and the ionic liquid polymer are perfluorsulfimide ions with relatively weak coordination capacity, so that the binding capacity of the anion centers to Li<+> is reduced, and the specific conductance and Li<+> transferencenumber of the polymer solid electrolyte containing the containing ionic liquid polymer are increased; and the ionic liquid polymer is compounded with lithium salt so as to form the polymer solid electrolyte containing an ionic liquid-polyion liquid compound, and the ionic liquid-polyion liquid compound has a micro-liquid phase structure, so that the specific conductance and Li<+> transference number of the electrolyte can be further increased.

Description

technical field [0001] The disclosure relates to the field of polymer electrolytes, in particular, to an ionic liquid compound and a preparation method, an ionic liquid polymer, its use, and a polymer solid state electrolyte containing the polymer. Background technique [0002] The polymer electrolyte is composed of polymer and lithium salt. The polymer lithium-ion battery can avoid the defects of liquid leakage and explosion in the organic liquid electrolyte in the traditional lithium-ion battery during use. It has plasticity, flexibility, small size and safety. It has the advantages of good performance and large-scale industrial production, so it has attracted widespread attention. However, the room temperature conductivity of existing polymer electrolytes is low, which cannot meet the application requirements. Ionic liquids are usually liquid at room temperature, and have the characteristics of low viscosity, non-volatile, non-combustible, low toxicity, high room tempera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D233/58C07D303/34C07D301/00H01G9/028H01G11/56H01M8/1018H01M10/0565C08G65/22
CPCC07D233/58C07D301/00C07D303/34C08G65/22H01G9/028H01G11/56H01M8/1018H01M10/0565Y02E60/10Y02E60/50
Inventor 宋威谢静马永军易观贵历彪郭姿珠
Owner BYD CO LTD
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