JP2023073211A - Electrolyte and manufacturing method thereof - Google Patents

Abstract

SOLUTION: To provide an electrolyte that includes a polymeric material, a lithium salt, an organic solvent, a plasticizer, an ionic solution, and an auxiliary material, which are kneaded into a colloidal form, and in which the polymeric material is 20 to 45% by weight, the lithium salt is 2 to 10% by weight, the organic solvent is 10 to 20% by weight, the plasticizer is 10 to 20% by weight, the ionic solution is 1 to 4% by weight, the auxiliary material is 1 to 4% by weight, and a manufacturing method thereof.EFFECT: A colloidal electrolyte according to the present invention has low fluidity due to its high cohesive mechanical properties, and the ionic conductivity is also clearly improved over solid electrolytes, realizes properties such as high ionic conductivity, no need for spacers, and useful for adhesion to glass, plastic, and the like, and avoids liquid leakage due to high safety, and also has high adhesion, high light transmittance, and high conductivity.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to an electrolyte and a method for producing the same, particularly to a colloidal electrolyte and a method for producing the colloidal electrolyte by kneading.

Current electrolyte forms include solids, liquids and colloids. Liquid electrolytes have high ionic conductivity and good current-carrying effects, but because they have fluidity, they tend to leak when used for long periods of time or are pushed by external forces, making electronic components inoperable. Furthermore, liquid electrolytes contain solvents such as strong acids and strong alkalis, and leakage of these solvents poses a safety risk. Solid electrolytes can solve the liquid leakage problem of liquid electrolytes by using polymers or inorganic metal oxides instead of liquid electrolytes. The ionic conductivity of is not high, and the performance of electronic components is undesirable. Colloidal electrolytes are between solid electrolytes and liquid electrolytes, having the advantages of both, and becoming the mainstream of electrolyte materials in the future. However, current common colloidal electrolytes have problems such as non-uniform concentration distribution, poor light transmission, and low conductivity.

One object of the present invention is to provide an electrolyte that simultaneously possesses the properties of high viscosity, high light transmittance and high conductivity.

Another object of the present invention is to provide a method for producing an electrolyte that is characterized by easy storage of the finished product and increased productivity.

A further object of the present invention is a colloidal electrolyte that is useful in the field of electrochemical energy storage and energy saving technology, such as electrochromic technology, polymer lithium batteries, supercapacitances and superbatteries, and a method for producing the colloidal electrolyte by kneading. is to provide

To achieve the above and other objects, the electrolyte of the present invention comprises a polymeric material, a lithium salt, an organic solvent, a plasticizer, an ionic solution, and an auxiliary material, which are kneaded together. about 20-45% by weight of the polymeric material, about 2-20% by weight of the lithium salt, about 10-30% by weight of the organic solvent, and about 10-30% by weight of the plasticizer. 30% by weight, the ionic solution about 1-4% by weight, and the auxiliary material about 1-4% by weight.

To achieve the above and other objects, the method for producing an electrolyte of the present invention comprises reacting a polymeric material at a reaction temperature of about 50-70° C. for about 15-30 minutes, dehydrating and drying to obtain a dry polymeric material. a material mixing step of obtaining a colloidal electrolyte by uniformly stirring the dry polymeric material with a lithium salt, an organic solvent, a plasticizer, an ionic solution and auxiliary materials; and a kneading step of reacting at a reaction temperature for about 2-10 minutes and kneading to homogenize the colloidal electrolyte.

In some embodiments of the invention, the polymeric material is a thermoplastic polymeric material or a thermosetting polymeric material, polyvinyl butyral (PVB), vinyl acetate copolymer (EVA), epoxy resin (EP). and at least one material selected from the group consisting of polyethylene (PE) or other alternative materials.

In some embodiments of the invention, the lithium salt is lithium hexafluorophosphate (LiPF ₆ ), lithium tetrafluoroborate (LiBF ₄ ), lithium perchlorate (LiClO ₄ ), lithium hexafluoroarsenate ( _LiAsF6 ), lithium trifluoromethylsulfonate ( _LiCF3SO3 ), lithium bis(oxalate)borate ( _LiBOB ), lithium difluoro(oxalato)borate (LiODFB), lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) , at least one material selected from the group consisting of lithium bis(fluorosulfonyl ₎ imide (LiFSI), lithium difluorophosphate ( _LiPO2F2 ) and lithium tetrafluorooxalate phosphate (LiFOP) or other alternatives material.

In some embodiments of the invention, the organic solvent consists of propylene carbonate (PC), ethylene carbonate (EC), propyl butyrate (γ-BL), N-methyl-pyrrolidine (NMP) and dimethyl carbonate (DMC). At least one material selected from the group or other alternative materials.

In some embodiments of the invention, the plasticizer is selected from Diethylene Glycol Monobutyl Ether or Adipic acid.

In some embodiments of the invention, the ionic solution consists essentially of cyclopropyl.

In some embodiments of the present invention, the auxiliary material is at least one material selected from the group consisting of toners, UV absorbers, light stabilizers, temperature stabilizers and silicon powders.

In some embodiments of the present invention, the colloidal electrolyte kneaded in the kneading step is extruded and granulated using a high-speed cutter while being rapidly cooled and dried to produce granular electrolyte by extrusion granulation. Further including steps.

In some embodiments of the present invention, in the extrusion granulation step, the operating temperature is about 100-140° C., the extrusion pressure is about 0.2-1 megapascals (MPa), and the granules produced are The size of the granules of the electrolyte is about 1-30 mm.

In some embodiments of the present invention, the colloidal electrolyte kneaded in the kneading step is melted by heating at 80 to 150° C. to form a fluid colloid, and a slit-shaped discharge port capable of adjusting the opening diameter size is provided at the tip. Injecting the fluid colloid into the cavity of the coating head with the pressure of the cavity, causing the fluid colloid to flow out uniformly from the slit-shaped discharge port, and coating it on the release film to form an adhesive film structure; Next, a first colloidal electrolyte membrane forming step is further included in which the temperature is rapidly lowered by an air knife and the thickness is controlled to form a colloidal electrolyte membrane.

In some embodiments of the present invention, the granular electrolyte produced by the extrusion granulation step is reacted at a reaction temperature of about 70-140° C. for about 2-10 minutes and kneaded to form a second granular electrolyte. 2 colloidal electrolyte, the second colloidal electrolyte is heated at about 80 to 150° C. to melt to form a fluid colloid, and the fluidized colloid is introduced into the cavity of the coating head having a slit-shaped discharge port at the tip whose opening diameter size can be adjusted. The fluid colloid is injected by the pressure of the cavity, the fluid colloid is uniformly discharged from the slit-shaped discharge port, coated on the release film to form an adhesive film structure, and the temperature is rapidly lowered by an air knife to adhere. The method further includes forming a second colloidal electrolyte membrane by controlling the thickness of the membrane to form a colloidal electrolyte membrane.

In some embodiments of the present invention, in the kneading step, the kneaded colloidal electrolyte body is extruded at an extrusion temperature of about 80-160° C., an air knife outlet air pressure of about 95-1000 kilopascals (kPa), and an extrusion pressure of about 0.5. Further comprising a third colloidal electrolyte membrane forming step of heating and extruding at ~1 megapascal (MPa) to form a colloidal electrolyte membrane having a thickness of about 0.005-3 mm.

In some embodiments of the present invention, the granular electrolyte produced in the extrusion granulation step is heated to a viscous colloid by an extrusion flow process at about 70-140°C, and then the viscous The thickened colloid is heated and extruded at an extrusion temperature of about 80 to 160° C., an air knife nozzle of about 95 to 1000 kilopascals (kPa), and an extrusion pressure of about 0.5 to 1 megapascals (MPa) to obtain a thickness of about 0. Further comprising a fourth colloidal electrolyte membrane forming step to form a colloidal electrolyte membrane of 0.005-3 mm.

Beneficial effects of the present invention are as follows.

In the colloidal electrolyte of the present invention, by adopting specific components and specific proportions among the components and uniformly dispersing the components by kneading, the colloidal electrolyte has high agglomeration mechanical properties and low fluidity. . The ionic conductivity is also clearly higher than that of solid electrolytes, realizing characteristics such as high ionic conductivity, no need for spacers, and useful for adhesion to glass, plastic, and the like. It has high safety to avoid liquid leakage, and also has high adhesion, high light transmittance and high conductivity.

The electrolyte of the present invention can be used in the electrolyte layer of an electrochromic device and can be made using adhesive techniques. In addition, the electrolytes of conventional energy storage components such as supercapacitance, lithium polymer batteries, and superbatteries can all be combined with separators to be isolated from the electrodes to avoid electrode conduction. By comparison, the electrolyte of the present invention, when made into an adhesive film, can be used as a spacer between two electrodes and for ion transport and electron barrier.

1 is a flow chart of an embodiment of a method for producing an electrolyte according to the present invention; 4 is a flow chart of another embodiment of the method for producing an electrolyte according to the present invention; 4 is a flow chart of another embodiment of the method for producing an electrolyte according to the present invention; 4 is a flow chart of another embodiment of the method for producing an electrolyte according to the present invention; 4 is a flow chart of another embodiment of the method for producing an electrolyte according to the present invention; 4 is a flow chart of another embodiment of the method for producing an electrolyte according to the present invention;

FIG. 1 is a flow chart of one embodiment of the method for producing an electrolyte according to the present invention. As shown in FIG. 1, the electrolyte of this embodiment contains a polymer material, a lithium salt, an organic solvent, a plasticizer, an ionic solution, and an auxiliary material. It is the one that was made. The polymeric material is about 20-45% by weight, the lithium salt is about 2-20% by weight, the organic solvent is about 10-30% by weight, the plasticizer is about 10-30% by weight, and the ionic solution is About 1-4% by weight, the auxiliary material about 1-4% by weight.

Preferably, the polymeric material is a thermoplastic polymeric material or a thermosetting polymeric material and is made from polyvinyl butyral (PVB), vinyl acetate copolymer (EVA), epoxy resin (EP) and polyethylene (PE). at least one material selected from the group consisting of or other alternative materials. In this example, the thermoplastic polymeric material is polyvinyl butyral (PVB), which serves primarily as an ionic conduction path provider, improving the cohesion and ionic conductivity of the colloidal electrolyte, as well as providing excellent electronic It has insulating properties.

Preferably, the lithium salt is lithium hexafluorophosphate ( _LiPF6 ), lithium tetrafluoroborate ( _{LiBF4), lithium perchlorate (LiClO4 )} , lithium hexafluoroarsenate ( _LiAsF6 ), trifluoromethyl lithium sulfonate (LiCF ₃ SO ₃ ), lithium bis(oxalate) borate (LiBOB), lithium difluoro(oxalato)borate (LiODFB), lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), lithium bis(fluorosulfonyl) At least one material selected from the group consisting of imide (LiFSI), lithium difluorophosphate ( _{LiPO2F2 )} and lithium tetrafluorooxalate phosphate (LiFOP) or other alternative materials. In this example, the lithium salt is lithium perchlorate (LiClO4), which can be dissociated to form ions, which migrate between the thermoplastic polymers to provide a favorable ion-conducting function.

Preferably, the organic solvent is at least one selected from the group consisting of propylene carbonate (PC), ethylene carbonate (EC), propyl butyrate (γ-BL), N-methyl-pyrrolidine (NMP) and dimethyl carbonate (DMC). Seed material or other alternative materials. The organic solvent provides a transport site for lithium ions and assists the ions to dissociate from the lithium salt. The organic solvent preferably has a high boiling point characteristic.

Preferably, the plasticizer is selected from Diethylene Glycol Monobutyl Ether or Adipic acid. In this example, the plasticizer is diethylene glycol butyl ether. The addition of the plasticizer improves the translucency of the electrolyte, improves the applicability of the electrolyte, and makes it particularly applicable to electrochromic devices (ECDs).

Preferably, the ionic solution consists essentially of cyclopropyl. In this example, the ionic solution is [(Pmim)(ClO ₄ )] having a chlorate radical on the main cyclopropyl. The ionic solution provides conductive ions other than lithium ions, increases the ionic concentration of the electrolyte, and increases the environmental stability of lithium ions.

Preferably, said auxiliary material is at least one material selected from the group consisting of toners, UV absorbers, light stabilizers, temperature stabilizers and silicon powders. The toner can be any color pigment and is useful for filtering and depth control. The UV absorbers are titanium dioxide, 2-(2'-hydroxy-5'-tert-octylphenyl)benzotriazole, mixtures of 2-(2'-hydroxy-5'-tert-octylphenyl)benzotriazole and triazoles. It can extend the life of the adhesive and improve the weather resistance. The light stabilizer is composed mainly of pentaerythritol tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, and can avoid deterioration due to oxidative decomposition of the polymer that has absorbed UV light. . The temperature stabilizer is composed mainly of ethylene glycol (EG) and improves the low-temperature freezing resistance and high-temperature volatility resistance of the adhesive. The silicon powder can be arbitrarily shaped particles of 10 ⁵ to 10 nano size to improve the mechanical and electrical insulating properties of the adhesive.

After mixing the thermoplastic polymer, the lithium salt and the organic solvent, the thermoplastic polymer is swollen with the organic solvent to form a polymer network. Highly negatively charged atoms (eg, oxygen) or hydroxy groups (ie, OH—) on the backbone or side chains of the thermoplastic polymer have unpaired electrons. Therefore, lithium ions (Li+) dissociated from the lithium salt form temporary coordinate bonds with the thermoplastic polymer, and are easily transferred through the polymer network. The presence of the organic solvent provides another mode of conduction for lithium ions, allowing lithium ions to move through the colloidal polymer electrolyte via the organic solvent.

The method for producing the electrolyte of this embodiment includes a drying step S0 in which a polymer material is reacted at a reaction temperature of about 50 to 70° C. for about 15 to 30 minutes, dehydrated and dried to obtain a dry polymer material; A material mixing step S1 in which the material is uniformly stirred with a lithium salt, an organic solvent, a plasticizer, an ionic solution and an auxiliary material to obtain a colloidal electrolyte; a kneading step S2 of reacting for a minute and kneading to homogenize the colloidal electrolyte. In this embodiment, in the material mixing step S1, the material is stirred by a stirrer, and in the kneading step S2, the colloidal electrolyte is uniformly mixed by mechanical force and chemical action using the kneader.

FIG. 2 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention. As shown in FIG. 2, preferably, the method of the present embodiment extrudes the colloidal electrolyte kneaded in the kneading step S2, granulates using a high-speed cutter, rapidly cools and dries, and granulates. It further includes an extrusion granulation step S3 to produce a shaped electrolyte. In this embodiment, the colloidal electrolyte is extruded by a screw, and then rapidly cooled and dried by a high-speed cutter using a granulator to form a granular electrolyte, thus facilitating the preservation of the finished product. , which is advantageous for use in subsequent processes. As for the cooling and drying, for example, the temperature may be lowered with water or an organic solvent, and then dried by an air-drying method.

Preferably, the extrusion granulation step S3 is at an operating temperature of about 100-140° C., an extrusion pressure of about 0.2-1 megapascals (MPa), and the granular colloidal electrolyte produced has a granule size of about 1-1. 30 mm. In this example, the electrolyte granule size is 4 mm, the working temperature is 105° C., and the extrusion pressure is 0.8 megapascals (MPa).

FIG. 3 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention. As shown in FIG. 3, preferably, from the viewpoint of handleability in subsequent processes, the method for producing an electrolyte of the present embodiment heats the colloidal electrolyte kneaded in the kneading step S2 at about 80 to 150° C. to melt it. Then, the fluid colloid is injected into a cavity of a coating head having a slit-shaped ejection port whose opening diameter can be adjusted at the tip by the pressure of the cavity, and the fluid colloid is injected into the slit-shaped ejection port. uniform outflow from the mold release film to form an adhesive film structure, the temperature is rapidly lowered by an air knife, and the thickness is controlled to form a first colloidal electrolyte film forming step S41. include. In this example, the fluid colloid was injected into a cavity of a coating head having a slit-shaped discharge port at the tip whose opening diameter size was adjustable, with a heating and melting temperature of 95° C., by the pressure of the cavity. is uniformly discharged from the slit-shaped discharge port of the coating head, the adhesive film structure is formed as the fluid colloid is applied on the release film, the temperature of the adhesive film is rapidly lowered by an air knife, and the thickness of the adhesive film is reduced. controlled to form a colloidal electrolyte membrane.

FIG. 4 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention. As shown in FIG. 4, preferably, from the viewpoint of handleability in subsequent processes, the method for producing an electrolyte of the present embodiment is to heat the granular electrolyte produced in the extrusion granulation step S3 to about 70 to 140°C. for about 2 to 10 minutes at a reaction temperature of , kneading to obtain the granular electrolyte as a second colloidal electrolyte, heating the second colloidal electrolyte to about 80 to 150° C. to melt it to form a fluid colloid, and The fluid colloid is injected by the pressure of the cavity into the cavity of the coating head having at the tip thereof a slit-shaped ejection port whose aperture size can be adjusted, and the fluid colloid is uniformly discharged from the slit-shaped ejection port, and the mold is released. It further includes a second colloidal electrolyte membrane forming step S42 of coating on the membrane to form an adhesive membrane structure, rapidly cooling with an air knife to control the thickness of the adhesive membrane, and forming a colloidal electrolyte membrane. In this example, the reaction temperature was 90° C., the reaction time was 5 minutes, and a kneader was used to convert the granular electrolyte into a colloidal electrolyte, and then the colloidal electrolyte was heated at 95° C. to melt. Then, the liquid colloid is formed into a fluid colloid, and the fluid colloid is injected into the cavity of the coating head by the pressure of the cavity. The tip of the coating head has a slit-shaped discharge port whose opening size can be adjusted, and the fluid colloid flows out from the slit-shaped discharge port of the coating head and forms an adhesive film structure as it is coated on the release film. . Here, the release film is a paper film, a cloth film or a plastic film. The temperature of the adhesive film is rapidly lowered by an air knife to control the thickness of the adhesive film to form a colloidal electrolyte membrane. Finally, a release film is coated on the adhesive membrane, and a colloidal electrolyte membrane is obtained by an adhesive membrane winding device.

FIG. 5 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention. As shown in FIG. 5, preferably, from the viewpoint of handleability in subsequent processes, the method for producing an electrolyte of the present embodiment is carried out by extruding the colloidal electrolyte body kneaded in the kneading step S2 at an extrusion temperature of about 80 to 160° C. and extruding with an air knife. Heat and extrude with a wind pressure of about 95 to 1000 kilopascals (kPa) at the injection port and an extrusion pressure of about 0.5 to 1 megapascals (MPa) to form a colloidal electrolyte membrane with a thickness of about 0.005 to 3 mm. 3. Further includes a colloidal electrolyte membrane forming step S43. In this example, the extrusion temperature is 120° C., the blowing angle of the air knife nozzle is 90° to 105°, the cap of the extrusion nozzle is 1 mm, and the extrusion pressure is 0.6 megapascals (MPa). , and finally a colloidal electrolyte membrane with a thickness of 0.6 mm is formed.

FIG. 6 is a flowchart of another embodiment of the electrolyte manufacturing method of the present invention. As shown in FIG. 6, preferably, from the viewpoint of handleability in subsequent processes, the method for producing an electrolyte of the present embodiment is performed by extruding the granular electrolyte produced in the extrusion granulation step S3 by an extrusion flow method. It is heated at about 70 to 140° C. to form a viscous colloid, and then the viscous colloid is extruded at an extrusion temperature of about 80 to 160° C., a wind pressure of an air knife nozzle of about 95 to 1000 kilopascals (kPa), and an extrusion pressure of about Further includes a fourth colloidal electrolyte membrane forming step S44 of heating and extruding at 0.5-1 megapascal (MPa) to form a colloidal electrolyte membrane with a thickness of about 0.005-3 mm. In this example, the granular electrolyte is heated at 100° C. to form a viscous colloid, the extrusion temperature is 120° C., the wind pressure at the air knife injection port is about 100 kilopascals (kPa), and the wind is the extrusion injection. present across the width of the mouth, the blow angle of the air knife jet is 90° to 105°, the cap of the extrusion jet is about 1 mm, the extrusion pressure is 0.6 megapascals (MPa), and finally , a colloidal electrolyte membrane with a thickness of 0.6 mm is formed.

In the colloidal electrolyte of the present invention, by adopting specific components and specific proportions among the components and uniformly dispersing the components by kneading, the colloidal electrolyte has high agglomeration mechanical properties and low fluidity. . The ionic conductivity is also clearly higher than that of solid electrolytes, realizing characteristics such as high ionic conductivity, no need for spacers, and useful for adhesion to glass, plastic, and the like. It has high safety to avoid liquid leakage, and also has high adhesion, high light transmittance and high conductivity.

The electrolyte of the present invention can be used in the electrolyte layer of an electrochromic device and can be made using adhesive techniques. In addition, the electrolytes of conventional energy storage components such as supercapacitance, lithium polymer batteries, and superbatteries can all be combined with separators to be isolated from the electrodes to avoid electrode conduction. By comparison, the electrolyte of the present invention, when made into an adhesive film, can be used as a spacer between two electrodes and for ion transport and electron barrier.

S0 drying step S1 material mixing step S2 kneading step S3 extrusion granulation step S41 first colloidal electrolyte membrane forming step S42 second colloidal electrolyte membrane forming step S43 third colloidal electrolyte membrane forming step S44 fourth colloidal electrolyte membrane forming step

Claims (14)

A polymeric material, a lithium salt, an organic solvent, a plasticizer, an ionic solution, and an auxiliary material, which are kneaded into a colloidal form, and the polymeric material is 20% by weight. 45 wt% or less, the lithium salt is 2 wt% or more and 20 wt% or less, the organic solvent is 10 wt% or more and 30 wt% or less, the plasticizer is 10 wt% or more and 30 wt% or less, the ionic solution is 1 wt % or more and 2 wt % or less, and the auxiliary material is 1 wt % or more and 2 wt % or less. The polymer material is a thermoplastic polymer material or a thermosetting polymer material, and is at least one material selected from the group consisting of polyvinyl butyral, vinyl acetate copolymer, epoxy resin and polyethylene. The electrolyte of claim 1, characterized in that: The lithium salt includes lithium hexafluorophosphate, lithium tetrafluoroborate, lithium perchlorate, lithium hexafluoroarsenate, lithium trifluoromethylsulfonate, lithium bis(oxalate)borate, lithium difluoro(oxalato)borate. , lithium bis(trifluoromethanesulfonyl)imide, lithium bis(fluorosulfonyl)imide, lithium difluorophosphate and lithium tetrafluorooxalate phosphate. Item 1. The electrolyte according to item 1. 2. The electrolyte according to claim 1, wherein said organic solvent is at least one material selected from the group consisting of propylene carbonate, ethylene carbonate, propyl butyrate, N-methyl-pyrrolidine and dimethyl carbonate. 2. The electrolyte of claim 1, wherein said plasticizer is selected from diethylene glycol butyl ether or adipic acid. 2. The electrolyte of claim 1, wherein said ionic solution consists predominantly of cyclopropyl. 2. The electrolyte of claim 1, wherein said auxiliary material is at least one material selected from the group consisting of toners, UV absorbers, light stabilizers, temperature stabilizers and silicon powders. a drying step of reacting the polymer material at a reaction temperature of 50-70° C. for 15-30 minutes, followed by dehydration and drying to obtain a dry polymer material;
a material mixing step of uniformly stirring the dry polymeric material with lithium salt, organic solvent, plasticizer, ionic solution and auxiliary materials to obtain a colloidal electrolyte;
and a kneading step of reacting the colloidal electrolyte at a reaction temperature of 70 to 140° C. for 2 to 10 minutes and kneading to homogenize the colloidal electrolyte. . The method further comprises an extrusion granulation step of extruding the colloidal electrolyte kneaded in the kneading step, granulating the colloidal electrolyte using a high-speed cutter, and rapidly cooling and drying the colloidal electrolyte to produce a granular electrolyte. Item 9. A method for producing the electrolyte according to item 8. In the extrusion granulation step, the working temperature is 100-140° C., the extrusion pressure is 0.2-1 MPa, and the size of the produced granular electrolyte granules is 1-30 mm. A method for producing the electrolyte according to claim 9 . The colloidal electrolyte kneaded in the kneading step is melted by heating at 80 to 150° C. to form a fluid colloid. The colloid is injected by the pressure of the cavity, the fluid colloid is uniformly discharged from the slit-shaped outlet, coated on the release film to form an adhesive film structure, and then rapidly cooled by an air knife. 9. The method of claim 8, further comprising forming a first colloidal electrolyte membrane by controlling the thickness of the colloidal electrolyte membrane. The granular electrolyte produced by the extrusion granulation step is reacted at a reaction temperature of 70-140° C. for 2-10 minutes and kneaded to obtain the granular electrolyte as a second colloidal electrolyte, and the second colloidal electrolyte is 80%. It is melted by heating at ~150°C to form a fluid colloid, and the fluid colloid is injected by the pressure of the cavity into a cavity of a coating head having a slit-shaped discharge port at the tip whose opening diameter size can be adjusted, and the fluidized. The adhesive colloid is uniformly discharged from the slit-shaped discharge port, coated on the release film to form an adhesive film structure, then rapidly cooled by an air knife to control the thickness of the adhesive film, and the colloid 10. The method of claim 9, further comprising forming a second colloidal electrolyte membrane to form an electrolyte membrane. The colloidal electrolyte kneaded in the kneading step is heated and extruded at an extrusion temperature of 80 to 160° C., a wind pressure of an air knife injection port of 95 to 1000 kPa, and an extrusion pressure of about 0.5 to 1 MPa to obtain a colloid having a thickness of 0.005 to 3 mm. 9. The method for producing an electrolyte according to claim 8, further comprising a third colloidal electrolyte membrane forming step of forming an electrolyte membrane. The granular electrolyte produced in the extrusion granulation step is heated at 70-140°C by extrusion flow method to form a viscous colloid, and then the viscous colloid is extruded at an extrusion temperature of 80-160°C. It further includes a fourth colloidal electrolyte membrane forming step of heating and extruding at an air knife injection port wind pressure of 95 to 1000 kPa and an extrusion pressure of 0.5 to 1 MPa to form a colloidal electrolyte membrane with a thickness of 0.005 to 3 mm. The method for producing an electrolyte according to claim 9.

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