CN113178618A - Polyion liquid/active ceramic composite electrolyte and preparation method thereof - Google Patents

Polyion liquid/active ceramic composite electrolyte and preparation method thereof Download PDF

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CN113178618A
CN113178618A CN202110432336.5A CN202110432336A CN113178618A CN 113178618 A CN113178618 A CN 113178618A CN 202110432336 A CN202110432336 A CN 202110432336A CN 113178618 A CN113178618 A CN 113178618A
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lithium
active ceramic
polyion liquid
liquid
composite electrolyte
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杨富杰
何钰怡
谢文菲
梁冠杰
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Guangdong Institute Of Mineral Application
Zhongkai University of Agriculture and Engineering
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Guangdong Institute Of Mineral Application
Zhongkai University of Agriculture and Engineering
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    • H01M10/00—Secondary cells; Manufacture thereof
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    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
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Abstract

The invention discloses a polyion liquid/active ceramic composite electrolyte and a preparation method thereof. According to the polyion liquid/active ceramic composite electrolyte provided by the invention, the polyion liquid with a dynamic ion network is added into the active ceramic with high ionic conductivity, so that the composite solid electrolyte has excellent mechanical properties, and a new way is provided for developing a high-performance solid lithium ion battery.

Description

Polyion liquid/active ceramic composite electrolyte and preparation method thereof
Technical Field
The invention belongs to the field of lithium batteries, and particularly relates to a polyion liquid composite electrolyte and a preparation method thereof.
Background
The lithium ion battery is one of the most widely used batteries at present, and has the advantages of high specific energy, good low-temperature performance, long service life, no memory effect and the like. The traditional lithium ion battery adopts flammable liquid organic electrolyte, has high risk of combustion in the use process, and has a safety problem which is a major bottleneck for limiting the application of the lithium ion battery in the large-scale energy storage fields such as power batteries, smart power grids and the like; on the other hand, the workability is limited to some extent, and high voltage integration, thin film formation, and the like are difficult. In order to cope with this problem, it is an effective means to use a nonflammable polyion liquid composite electrolyte as a separator of a lithium ion battery.
Active ceramics are a class of solid electrolyte materials that inherently possess ion-conducting properties. Compared with inorganic inert ceramic materials, the active ceramic has the advantages of higher ionic conductivity, excellent chemical stability and the like. Currently, the activated ceramics include garnet-type activated ceramics (activated ceramics), LISICON-type lithium ion conductors, NASICON-type lithium aluminum phosphate (LATP), and perovskite-type lithium lanthanum titanium oxide. However, in the case of lithium ion batteries, the ion conductivity of the active ceramic is still low, and the flexibility of the electrolyte membrane is insufficient, which makes it difficult to put the active ceramic into practical use. The polyionic liquid is a kind of ionic polymer which is generated by polymerizing an ionic liquid monomer and has an anionic group and a cationic group on a repeating unit structure, and has the ion conducting performance of the ionic liquid and the mechanical performance of the polymer. The combination of the ceramic and the polyion liquid provides a new way for preparing the electrolyte with high ionic conductivity, good mechanical property, higher lithium ion mobility and nonflammable property, is a new energy material, is easy to realize thin film and high voltage integration, and plays an important role in the fields of safe power batteries and flexible wearable electronic equipment.
In order to overcome the problems of insufficient ion conduction efficiency and poor mechanical property of an active ceramic-based electrolyte, the invention provides a polyion liquid/active ceramic composite material electrolyte with high ion conduction property and mechanical property.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a polyion liquid/active ceramic composite electrolyte and a preparation method thereof, so as to improve the ionic conductivity and chemical stability of an electrolyte material and endow the electrolyte with self-repairing performance and mechanical performance. Provides a simple and rapid preparation method of polyion liquid/active ceramic composite electrolyte for lithium ion/lithium battery.
The above object of the present invention is achieved by the following technical solutions:
the invention provides a polyion liquid/active ceramic composite electrolyte, which is prepared by compounding a polyion liquid, active ceramic and a lithium salt mixture; the lithium salt mixture includes a plasticizer and a lithium salt.
Preferably, the polyion liquid is a copolymer with an imidazolium ionic liquid and an acrylate unit structure.
Preferably, the active ceramic is lithium lanthanum zirconium oxygen or lithium titanium aluminum phosphate.
Preferably, the lithium salt is lithium hexafluorophosphate (LiPF)6) Lithium tetrafluoroborate (LiBF)4) One or more of lithium bis (oxalato) borate (LiBOB), lithium bis (fluorosulfonyl) imide (LiFSI) and lithium bis (trifluoromethanesulfonyl) imide (LiTFSI).
Preferably, the plasticizer is one or more of water, alcohols, ethers, nitriles, carbonate solvents, 1-ethyl-3-methyl-imidazole bis (trifluoromethanesulfonyl) imide salt, and N-butyl-N-methylpyrrolidinium bis (trifluoromethanesulfonyl) imide.
The invention also provides a preparation method of the polyion liquid/active ceramic composite electrolyte, which comprises the following steps:
s1: preparation of lithium salt mixture: mixing a plasticizer and lithium salt in a solvent according to a certain proportion to obtain a lithium salt mixture;
s2: preparation of polyion liquid mixture: mixing the lithium salt mixture prepared in the step S1 with the polyionic liquid according to a certain proportion, and stirring to form a polyionic liquid mixture;
s3: mixing the polyion liquid mixture prepared in the step S2 with active ceramic powder, and stirring to form uniform slurry;
s4: and (4) coating the slurry prepared in the step (S3) on a polytetrafluoroethylene film or an electrode substrate, and drying in vacuum to obtain the polyion liquid/active ceramic composite electrolyte.
Specifically, the preparation method of the polyion liquid/active ceramic composite electrolyte specifically comprises the following operations:
(1) adding a plasticizer and lithium salt into a solvent, mixing, and stirring at room temperature for 6-12 hours to obtain a lithium salt mixture; the lithium salt mixture comprises the following components in percentage by mass: 30-60% of plasticizer and 40-70% of lithium salt;
(2) adding polyion liquid into the lithium salt mixture obtained in the step S1, wherein the mass ratio of the polyion liquid to the lithium salt mixture is 1: 0.5-2.0, and stirring at room temperature for 6-12 hours to obtain a polyion liquid mixture;
(3) grinding active ceramic powder for 20min by using a mortar, adding the polyion liquid mixture obtained in the step S2, wherein the mass of the active ceramic accounts for 50-90% of the total solid content, and grinding for 15min by using the mortar to finally form uniformly dispersed slurry;
(4) and (4) coating the slurry formed in the step (S3) on a polytetrafluoroethylene film or an electrode substrate by using a coater, standing for 30min, volatilizing redundant solvent, and then drying in vacuum at the temperature of 60-90 ℃ for 1-12 h to obtain the polyion liquid/active ceramic composite electrolyte.
Preferably, the thickness of the thin film of the polyion liquid/active ceramic composite electrolyte is controlled within the range of 50-180 micrometers.
The invention has the advantages that: the invention provides a polyion liquid/active ceramic composite electrolyte and a preparation method thereof. The polyion liquid with the dynamic ion network is added into the active ceramic with high ionic conductivity to endow the composite solid electrolyte with excellent mechanical properties, and the ionic conduction efficiency of the electrolyte can be effectively improved by compounding the active ceramic with high ionic conductivity and the polyion liquid. The preparation method is simple and rapid, and provides a new approach for developing high-performance solid lithium ion batteries.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a pictorial representation of a polyionic liquid mixture of example 1 of the present invention. The polyion liquid has good fluidity and binding power, is beneficial to forming good phase interface contact with active ceramic particles, and endows the electrolyte with excellent mechanical properties. The polyionic liquid mixtures of examples 2-8 all achieved the same technical effect as example 1.
Fig. 2 is a physical diagram of the polyion liquid/active ceramic composite electrolyte material of example 1 of the present invention. The prepared composite electrolyte membrane shows good bending deformation, and further shows that the polyion liquid can endow the active ceramic matrix composite solid electrolyte with excellent mechanical properties. The polyionic liquid mixtures of examples 2-8 all achieved the same technical effect as example 1.
Fig. 3 is an XRD pattern of polyion liquid/active ceramic composite electrolyte of example 2 of the present invention.
Fig. 4 is a TG diagram of the polyion liquid/active ceramic composite electrolyte of the present invention. As can be seen from the figure, the composite electrolyte material of the invention has the thermal weight loss phenomenon only at about 210 ℃, shows higher thermal stability and can meet the requirement of high-temperature performance of the lithium ion battery.
Fig. 5 is an electrochemical impedance spectrum of the polyion liquid/active ceramic composite electrolyte of example 3 of the present invention at different temperatures.
Fig. 6 is a graph of ionic conductivity of polyionic liquid/active ceramic composite electrolytes of examples 1-8 of the present invention. Therefore, the polyion liquid provided by the invention can obviously improve the ion conduction efficiency of the active ceramic matrix composite electrolyte.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The present invention is described in further detail below with reference to examples, but should not be limited to the exemplary examples given herein.
Example 1:
the preparation method of the polyion liquid/active ceramic composite electrolyte comprises the following steps:
(1) dissolving 0.25g of plasticizer (1-ethyl-3-methyl-imidazole bis (trifluoromethanesulfonyl) imide salt) and 0.25g of lithium salt (LiTFSI) in 2.11mL of solvent ethanol, and stirring at room temperature for 6 hours to obtain a lithium salt mixture;
(2) adding 0.5g of polyion liquid (copolymer with imidazolium ionic liquid and acrylate unit structures) into the lithium salt mixture obtained in the step (1), and stirring at room temperature for 6 hours to obtain a polyion liquid mixture;
(3) grinding 1g of Lithium Lanthanum Zirconium Oxide (LLZO) by using a mortar for 20min, then adding the polyion liquid mixture prepared in the step (2) into the Lithium Lanthanum Zirconium Oxide (LLZO), mixing and grinding for 15min, and obtaining slurry with the mass of the Lithium Lanthanum Zirconium Oxide (LLZO) accounting for 50% of the total solid content;
(4) coating the slurry formed in the step (3) on a polytetrafluoroethylene film or an electrode substrate by using a coater, standing for 30min, volatilizing redundant solvent, and then drying in vacuum at the temperature of 60 ℃ for 12h to obtain the polyion liquid/active ceramic composite electrolyte film with the thickness of 50 microns, wherein the ionic conductivity reaches 1.44 multiplied by 10-4S cm-1。
Example 2:
the preparation method of the polyion liquid/active ceramic composite electrolyte comprises the following steps:
(1) dissolving 0.25g of plasticizer (1-ethyl-3-methyl-imidazole bis (trifluoromethanesulfonyl) imide salt) and 0.25g of lithium salt (LiTFSI) in 2.11mL of solvent ethanol, and stirring at room temperature for 12 hours to obtain a lithium salt mixture;
(2) adding 0.5g of polyion liquid (copolymer with imidazolium ionic liquid and acrylate unit structures) into the lithium salt mixture obtained in the step (1), and stirring at room temperature for 12 hours to obtain a polyion liquid mixture;
(3) grinding 1.5g of Lithium Lanthanum Zirconium Oxide (LLZO) by using a mortar for 20min, then adding the polyion liquid mixture prepared in the step (2) into the Lithium Lanthanum Zirconium Oxide (LLZO), mixing and grinding for 15min, and obtaining slurry with the mass of the Lithium Lanthanum Zirconium Oxide (LLZO) accounting for 60% of the total solid content;
(4) coating the slurry formed in the step (3) on a polytetrafluoroethylene film or an electrode substrate by using a coater, standing for 30min, volatilizing redundant solvent, and then drying in vacuum at the temperature of 90 ℃ for 1h to obtain the polyion liquid/active ceramic composite electrolyte film with the thickness of 90 microns, wherein the ionic conductivity reaches 1.22 multiplied by 10-4S cm-1。
Example 3:
the preparation method of the polyion liquid/active ceramic composite electrolyte comprises the following steps:
(1) dissolving 0.25g of plasticizer (1-ethyl-3-methyl-imidazole bis (trifluoromethanesulfonyl) imide salt) and 0.25g of lithium salt (LiTFSI) in 2.11mL of solvent ethanol, and stirring at room temperature for 8 hours to obtain a lithium salt mixture;
(2) adding 0.5g of polyion liquid (copolymer with imidazolium ionic liquid and acrylate unit structures) into the lithium salt mixture obtained in the step (1), and stirring at room temperature for 8 hours to obtain a polyion liquid mixture;
(3) grinding 2.33g of Lithium Lanthanum Zirconium Oxide (LLZO) by using a mortar for 20min, then adding the polyion liquid mixture prepared in the step (2) into the Lithium Lanthanum Zirconium Oxide (LLZO), mixing and grinding for 15min, and obtaining slurry with the mass of the Lithium Lanthanum Zirconium Oxide (LLZO) accounting for 70% of the total solid content;
(4) coating the slurry formed in the step (3) on a polytetrafluoroethylene film or an electrode substrate by using a coater, standing for 30min, volatilizing redundant solvent, and then drying in vacuum at the temperature of 70 ℃ for 10h to obtain the polyion liquid/active ceramic composite electrolyte film with the thickness of 120 microns, wherein the ionic conductivity reaches 1.19 multiplied by 10-4S cm-1。
Example 4:
the preparation method of the polyion liquid/active ceramic composite electrolyte comprises the following steps:
(1) dissolving 0.25g of plasticizer (1-ethyl-3-methyl-imidazole bis (trifluoromethanesulfonyl) imide salt) and 0.25g of lithium salt (LiTFSI) in 2.11mL of solvent ethanol, and stirring at room temperature for 7 hours to obtain a lithium salt mixture;
(2) adding 0.5g of polyion liquid (copolymer with imidazolium ionic liquid and acrylate unit structures) into the lithium salt mixture obtained in the step (1), and stirring at room temperature for 7 hours to obtain a polyion liquid mixture;
(3) grinding 4g of Lithium Lanthanum Zirconium Oxide (LLZO) by using a mortar for 20min, then adding the polyion liquid mixture prepared in the step (2) into the Lithium Lanthanum Zirconium Oxide (LLZO), mixing and grinding for 15min, and obtaining slurry with the mass of the Lithium Lanthanum Zirconium Oxide (LLZO) accounting for 80% of the total solid content;
(4) coating the slurry formed in the step (3) on a polytetrafluoroethylene film or an electrode substrate by using a coater, standing for 30min, volatilizing redundant solvent, and then drying in vacuum at the temperature of 90 ℃ for 7h to obtain the polyion liquid/active ceramic composite electrolyte film with the thickness of 130 microns, wherein the ionic conductivity reaches 8.42 multiplied by 10-4S cm-1。
Example 5:
the preparation method of the polyion liquid/active ceramic composite electrolyte comprises the following steps:
(1) dissolving 0.25g of plasticizer (1-ethyl-3-methyl-imidazole bis (trifluoromethanesulfonyl) imide salt) and 0.25g of lithium salt (LiTFSI) in 2.11mL of solvent ethanol, and stirring at room temperature for 9 hours to obtain a lithium salt mixture;
(2) adding 0.5g of polyion liquid (copolymer with imidazolium ionic liquid and acrylate unit structures) into the lithium salt mixture obtained in the step (1), and stirring at room temperature for 9 hours to obtain a polyion liquid mixture;
(3) grinding 9g of Lithium Lanthanum Zirconium Oxide (LLZO) by using a mortar for 20min, then adding the polyion liquid mixture prepared in the step (2) into the Lithium Lanthanum Zirconium Oxide (LLZO), mixing and grinding for 15min, and obtaining slurry with the mass of the Lithium Lanthanum Zirconium Oxide (LLZO) accounting for 90% of the total solid content;
(4) coating the slurry formed in the step (3) on a polytetrafluoroethylene film or an electrode substrate by using a coater, standing for 30min, volatilizing redundant solvent, and then drying in vacuum at the temperature of 80 ℃ for 8h to obtain the polyion liquid/active ceramic composite electrolyte film with the thickness of 180 microns, wherein the ionic conductivity reaches 1.85 multiplied by 10-5S cm-1。
Example 6:
the preparation method of the polyion liquid/active ceramic composite electrolyte comprises the following steps:
(1) dissolving 0.3g of plasticizer (1-ethyl-3-methyl-imidazole bis (trifluoromethanesulfonyl) imide salt) and 0.2g of lithium salt (LiTFSI) in 2.11mL of solvent ethanol, and stirring at room temperature for 6 hours to obtain a lithium salt mixture;
(2) adding 0.5g of polyion liquid (copolymer with imidazolium ionic liquid and acrylate unit structures) into the lithium salt mixture obtained in the step (1), and stirring at room temperature for 6 hours to obtain a polyion liquid mixture;
(3) grinding 1g of Lithium Aluminum Titanium Phosphate (LATP) for 20min by using a mortar, adding the polyion liquid mixture prepared in the step (2) into the Lithium Aluminum Titanium Phosphate (LATP), mixing and grinding for 15min to obtain slurry with the mass of the Lithium Aluminum Titanium Phosphate (LATP) accounting for 50% of the total solid content;
(4) coating the slurry formed in the step (3) on a polytetrafluoroethylene film or an electrode substrate by using a coater, standing for 30min, volatilizing redundant solvent, and then drying in vacuum at the temperature of 80 ℃ for 9h to obtain the polyion liquid/active ceramic composite electrolyte film with the thickness of 60 microns, wherein the ionic conductivity reaches 1.22 multiplied by 10-3S cm-1。
Example 7:
the preparation method of the polyion liquid/active ceramic composite electrolyte comprises the following steps:
(1) dissolving 0.15g of plasticizer (1-ethyl-3-methyl-imidazole bis (trifluoromethanesulfonyl) imide salt) and 0.35g of lithium salt (LiTFSI) in 2.11mL of solvent ethanol, and stirring at room temperature for 7 hours to obtain a lithium salt mixture;
(2) adding 1g of polyion liquid (copolymer with imidazolium ionic liquid and acrylate unit structures) into the lithium salt mixture obtained in the step (1), and stirring at room temperature for 7 hours to obtain a polyion liquid mixture;
(3) grinding 3.5g of Lithium Aluminum Titanium Phosphate (LATP) by using a mortar for 20min, then adding the polyion liquid mixture prepared in the step (2) into the Lithium Aluminum Titanium Phosphate (LATP), mixing and grinding for 15min, and obtaining slurry with the mass of the Lithium Aluminum Titanium Phosphate (LATP) accounting for 70% of the total solid content;
(4) coating the slurry formed in the step (3) on a polytetrafluoroethylene film or an electrode substrate by using a coater, standing for 30min, volatilizing redundant solvent, and then drying in vacuum at the temperature of 85 ℃ for 9h to obtain the polyion liquid/active ceramic composite electrolyte film with the thickness of 140 microns, wherein the ionic conductivity reaches 6.62 multiplied by 10-4S cm-1。
Example 8:
the preparation method of the polyion liquid/active ceramic composite electrolyte comprises the following steps:
(1) dissolving 0.16g of plasticizer (1-ethyl-3-methyl-imidazole bis (trifluoromethanesulfonyl) imide salt) and 0.24g of lithium salt (LiTFSI) in 2.11mL of solvent ethanol, and stirring at room temperature for 6 hours to obtain a lithium salt mixture;
(2) adding 0.2g of polyion liquid (copolymer with imidazolium ionic liquid and acrylate unit structures) into the lithium salt mixture obtained in the step (1), and stirring at room temperature for 6 hours to obtain a polyion liquid mixture;
(3) grinding 5.4g of Lithium Aluminum Titanium Phosphate (LATP) by using a mortar for 20min, then adding the polyion liquid mixture prepared in the step (2) into the Lithium Aluminum Titanium Phosphate (LATP), mixing and grinding for 15min, and obtaining slurry with the mass of the Lithium Aluminum Titanium Phosphate (LATP) accounting for 90% of the total solid content;
(4) will be provided withCoating the slurry formed in the step (3) on a polytetrafluoroethylene film or an electrode substrate by using a coater, standing for 30min, volatilizing redundant solvent, and then drying in vacuum at the temperature of 90 ℃ for 4h to obtain the polyion liquid/active ceramic composite electrolyte film with the thickness of 175 microns, wherein the ionic conductivity reaches 4.17 multiplied by 10-4S cm-1。

Claims (10)

1. The polyion liquid/active ceramic composite electrolyte is characterized by being prepared by compounding a polyion liquid, active ceramic and a lithium salt mixture; the lithium salt mixture includes a plasticizer and a lithium salt.
2. The polyion liquid/active ceramic composite electrolyte as claimed in claim 1, wherein the polyion liquid is a copolymer having a structure of imidazolium ionic liquid and acrylate unit.
3. The polyionic liquid/active ceramic composite electrolyte as claimed in claim 1, wherein the active ceramic is lithium lanthanum zirconium oxygen or lithium titanium aluminum phosphate.
4. The polyionic liquid/active ceramic composite electrolyte according to claim 1, wherein the lithium salt is one or more of lithium hexafluorophosphate, lithium tetrafluoroborate, lithium bis (oxalato) borate, lithium bis (fluorosulfonyl) imide, and lithium bis (trifluoromethanesulfonyl) imide.
5. The polyion liquid/active ceramic composite electrolyte according to claim 1, wherein said plasticizer is one or more of water, alcohols, ethers, nitriles, carbonate solvents, 1-ethyl-3-methyl-imidazole bis (trifluoromethanesulfonyl) imide salt, N-butyl-N-methylpyrrolidinium bis (trifluoromethanesulfonyl) imide.
6. A preparation method of polyion liquid/active ceramic composite electrolyte is characterized by comprising the following steps:
s1: preparation of lithium salt mixture: mixing a plasticizer and lithium salt in a solvent according to a certain proportion to obtain a lithium salt mixture;
s2: preparation of polyion liquid mixture: mixing the lithium salt mixture prepared in the step S1 with the polyionic liquid according to a certain proportion, and stirring to form a polyionic liquid mixture;
s3: mixing the polyion liquid mixture prepared in the step S2 with active ceramic powder, and stirring to form uniform slurry;
s4: and (4) coating the slurry prepared in the step (S3) on a polytetrafluoroethylene film or an electrode substrate, and drying in vacuum to obtain the polyion liquid/active ceramic composite electrolyte.
7. The method for preparing polyion liquid/active ceramic composite electrolyte according to claim 6, is characterized by comprising the following steps:
(1) adding a plasticizer and lithium salt into a solvent, mixing, and stirring at room temperature for 6-12 hours to obtain a lithium salt mixture; the lithium salt mixture comprises the following components in percentage by mass: 30-60% of plasticizer and 40-70% of lithium salt;
(2) adding polyion liquid into the lithium salt mixture obtained in the step S1, wherein the mass ratio of the polyion liquid to the lithium salt mixture is 1: 0.5-2.0, and stirring at room temperature for 6-12 hours to obtain a polyion liquid mixture;
(3) grinding active ceramic powder for 20min by using a mortar, adding the polyion liquid mixture obtained in the step S2, wherein the mass of the active ceramic accounts for 50-90% of the total solid content, and grinding for 15min by using the mortar to finally form uniformly dispersed slurry;
(4) and (4) coating the slurry formed in the step (S3) on a polytetrafluoroethylene film or an electrode substrate by using a coater, standing for 30min, volatilizing redundant solvent, and then drying in vacuum at the temperature of 60-90 ℃ for 1-12 h to obtain the polyion liquid/active ceramic composite electrolyte.
8. The method for preparing polyion liquid/active ceramic composite electrolyte according to claim 6 or 7, wherein the polyion liquid is a copolymer having a structure of imidazolium ionic liquid and acrylate unit; the active ceramic is lithium lanthanum zirconium oxygen or lithium aluminum titanium phosphate.
9. The method for preparing polyion liquid/active ceramic composite electrolyte according to claim 6 or 7, wherein the lithium salt is one or more of lithium hexafluorophosphate, lithium tetrafluoroborate, lithium bis (oxalato) borate, lithium bis (fluorosulfonyl) imide and lithium bis (trifluoromethanesulfonyl) imide; the plasticizer is one or more of water, alcohols, ethers, nitriles, carbonate solvents, 1-ethyl-3-methyl-imidazole bis (trifluoromethanesulfonyl) imide salt and N-butyl-N-methylpyrrolidinium bis (trifluoromethanesulfonyl) imide.
10. The method for preparing polyion liquid/active ceramic composite electrolyte according to claim 6 or 7, wherein the thickness of the thin film of polyion liquid/active ceramic composite electrolyte is within the range of 50-180 micrometers.
CN202110432336.5A 2021-04-21 2021-04-21 Polyion liquid/active ceramic composite electrolyte and preparation method thereof Pending CN113178618A (en)

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US6001509A (en) * 1996-11-08 1999-12-14 Samsung Display Devices Co., Ltd. Solid polymer electrolytes
CN107464950A (en) * 2017-07-27 2017-12-12 中国科学院化学研究所 A kind of high salt concentration solid electrolyte and application
CN110247110A (en) * 2019-06-13 2019-09-17 湖南工业大学 A kind of preparation method of the lithium ion solid electrolyte with room temperature high ionic conductivity
CN111106391A (en) * 2019-12-11 2020-05-05 西安交通大学 Preparation method and application of high-strength solid electrolyte membrane
CN111987361A (en) * 2020-08-17 2020-11-24 仲恺农业工程学院 Imidazole polyion liquid electrolyte and preparation method and application thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6001509A (en) * 1996-11-08 1999-12-14 Samsung Display Devices Co., Ltd. Solid polymer electrolytes
CN107464950A (en) * 2017-07-27 2017-12-12 中国科学院化学研究所 A kind of high salt concentration solid electrolyte and application
CN110247110A (en) * 2019-06-13 2019-09-17 湖南工业大学 A kind of preparation method of the lithium ion solid electrolyte with room temperature high ionic conductivity
CN111106391A (en) * 2019-12-11 2020-05-05 西安交通大学 Preparation method and application of high-strength solid electrolyte membrane
CN111987361A (en) * 2020-08-17 2020-11-24 仲恺农业工程学院 Imidazole polyion liquid electrolyte and preparation method and application thereof

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