TWI795074B - The electrolyte and manufacturing method thereof - Google Patents

Abstract

An electrolyte and the manufacturing methos thereof are disclosed. The electrolyte includes: a polymer material; a lithium salt; an organic solvent; a plasticizer; an ionic solution; and an auxiliary material; wherein, by weight percentage, the polymer material is 20~45%, the lithium salt is 2~10%, the organic solvent is 10~20%, the plasticizer is 10~20%, the ionic solution is 1~4%, and the auxiliary material is 1~4 %.

Description

Electrolyte and its manufacturing method

The present invention relates to an electrolyte and a manufacturing method thereof, in particular to a colloidal electrolyte and a method for producing the colloidal electrolyte by mixing.

At present, the state of electrolyte can be roughly divided into solid state, liquid state and colloidal state. Liquid electrolytes have high ionic conductivity and good current conduction effect. However, due to the fluidity of liquid electrolytes, electronic components are prone to leakage when they are used for a long time or are squeezed by external forces, resulting in electronic components not working. In addition, the liquid electrolyte contains solvents such as strong acid or strong base, and if these solvents leak out, there will be safety concerns. Solid electrolytes use polymers or inorganic metal oxides to replace liquid electrolytes, which can solve the problem of liquid electrolyte leakage. However, solid electrolytes have interface resistance between electrodes, resulting in low ionic conductivity of solid electrolytes, resulting in electrons The performance of the component is not ideal. Colloidal electrolytes are between solid electrolytes and liquid electrolytes, and have the advantages of both, and will become the mainstream of electrolyte materials in the future. However, the commonly used colloidal electrolytes often have problems such as uneven concentration distribution, poor light transmission, and poor conductivity. Therefore, it is necessary to improve the traditional colloidal electrolytes.

One object of the present invention is to provide an electrolyte with high adhesiveness, high light transmittance and high conductivity.

Another object of the present invention is to provide a method for producing an electrolyte, which has the characteristics of easy storage of finished products and improved production capacity.

Another object of the present invention is to provide a colloidal electrolyte and a method for producing the colloidal electrolyte by mixing. The electrolyte can be applied to the field of electrochemical energy storage and energy-saving technology, including electrochromic technology, polymer lithium battery battery, supercapacitor, and superbattery.

In order to achieve the above and other objects, the electrolyte of the present invention includes: a polymer material, a lithium salt, an organic solvent, a plasticizer, an ionic solution, and an auxiliary material, which are mixed to form a colloidal state, wherein In terms of percentage, the polymer material is about 20-45%, the lithium salt is about 2-10%, the organic solvent is about 10-20%, the plasticizer is about 10-20%, and the ionic solution is about 1~4%, the auxiliary material is about 1~4%.

In order to achieve the above and other purposes, the electrolyte manufacturing method of the present invention includes: a drying step, a polymer material is placed at a reaction temperature of about 50-70°C, and the reaction time is about 15-30 minutes, and then dried to obtain a dried Polymer material; a material mixing step, mixing the dry polymer material with a lithium salt, an organic solvent, a plasticizer, an ionic solution and an auxiliary material to make a colloidal electrolyte; and a kneading step, placing the colloidal electrolyte at a reaction temperature of about 70-140° C. for a reaction time of about 2-10 minutes, and kneading to make the colloidal electrolyte uniform.

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

In some embodiments of the present invention, the lithium salt is selected from lithium hexafluorophosphate (LiPF ₆ ), lithium tetrafluoroborate (LiBF ₄ ), lithium perchlorate (LiClO ₄ ), lithium hexafluoroarsenphospholipid (LiAsF ₆ ), trifluoro Lithium methanesulfonate (LiCF ₃ SO ₃ ), lithium bisoxalate borate (LiBOB), lithium difluorooxalate borate (LiODFB), lithium bis(trifluoromethylsulfonyl)imide (LiTFSI), bis(fluorosulfonyl)imide At least one material selected from the group consisting of lithium (LiFSI), lithium difluorophosphate (LiPO ₂ F ₂ ) and lithium tetrafluorooxalate phosphate (LiFOP), or other alternative materials.

In some embodiments of the present invention, the organic solvent is selected from propylene carbonate (PC), ethylene carbonate (EC), butyl propyl ester (γ-BL), N-methyl-pyrrolidine (NMP) and dicarbonate At least one material in the group consisting of methyl ester (DMC) or other alternative materials.

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

In some embodiments of the invention, the ionic solvent consists essentially of the primary cyclopropyl group.

In some embodiments of the present invention, the auxiliary material is at least one material selected from the group consisting of toner, UV absorber, light stabilizer, temperature stabilizer and silicon powder.

In some embodiments of the present invention, an extrusion granulation step is additionally included. The colloidal electrolyte after kneading in the kneading step is extruded, and granulated by a high-speed cutter while rapidly cooling and drying to form a granular electrolyte .

In some embodiments of the present invention, the working temperature of the extrusion granulation step is about 100-140°C, the extrusion pressure is about 0.2-1 million Pascals (MPa), and the particle size of the granular electrolyte produced is about 1~30 mm.

In some embodiments of the present invention, a second colloidal electrolyte membrane production step is further included, the granular electrolyte produced in the extrusion granulation step is placed at a reaction temperature of about 70-140°C, and the reaction time is about 2-10 Minutes, and kneading to make the granular electrolyte form a second colloidal electrolyte, the second colloidal electrolyte is heated and melted at about 80~150°C to form a fluid colloid, which passes through the pressure of the cavity of a coating head Inject the fluid colloid, the top of the coating head has a slit outlet with adjustable caliber, the fluid colloid flows out from the slit outlet evenly, and is coated on a release film to form a film state , and then rapidly cooled by an air knife to control the thickness of the film to form a colloidal electrolyte film.

In some embodiments of the present invention, a second colloidal electrolyte membrane production step is further included, the granular electrolyte produced in the extrusion granulation step is placed at a reaction temperature of about 70-140°C, and the reaction time is about 2-10 Minutes, and kneading to make the granular electrolyte form a second colloidal electrolyte, the second colloidal electrolyte is heated and melted at about 80~150°C to form a fluid colloid, which passes through the pressure of the cavity of a coating head Inject the fluid colloid, the top of the coating head has a slit outlet with adjustable caliber, the fluid colloid flows out from the slit outlet evenly, and is coated on a release film to form a film state , and then rapidly cooled by an air knife to control the thickness of the film to form a colloidal electrolyte film.

In some embodiments of the present invention, a third colloidal electrolyte membrane production step is further included, and the colloidal electrolyte body after kneading in the kneading step is heated and extruded, wherein the extrusion temperature is about 80-160°C, The wind pressure at the air knife nozzle is about 95-1000 kilopascals (kPa), and the extrusion pressure is about 0.5-1 million Pascals (MPa), forming a colloidal electrolyte film with a thickness of about 0.005-3 mm.

In some embodiments of the present invention, a fourth colloidal electrolyte membrane production step is also included, the granular electrolyte produced in the extrusion granulation step is permeated through the granular electrolyte for about 70~ Heat at 140°C to form a thick colloid, and then heat and extrude the thick colloid, wherein the extrusion temperature It is about 80~160°C, the wind pressure of the air knife nozzle is about 95~1000 kilopascals (kPa), the extrusion pressure is about 0.5~1 million Pascals (MPa), and a colloidal state with a thickness of about 0.005~3 mm is formed. electrolyte membrane.

S0: drying step

S1: Material mixing step

S2: mixing step

S3: extrusion granulation step

S41: The first colloidal electrolyte membrane production step

S42: second colloidal electrolyte membrane production step

S43: the third colloidal electrolyte membrane production step

S44: the fourth colloidal electrolyte membrane production step

Fig. 1 is a flow chart of an embodiment of the electrolyte manufacturing method of the present invention.

Figure 2 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention; Figure 3 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention; Figure 4 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention .

Fig. 5 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention.

Fig. 6 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention.

Fig. 1 is a flow chart of an embodiment of the electrolyte manufacturing method of the present invention. Please refer to FIG. 1 , the electrolyte of this embodiment includes: a polymer material, a lithium salt, an organic solvent, a plasticizer, an ion solution and an auxiliary material, which are mixed to form a colloidal state. In terms of weight percentage, the polymer material is about 20-45%, the lithium salt is about 2-10%, the organic solvent is about 10-20%, the plasticizer is about 10-20%, and the ionic solution About 1~4%, the auxiliary material is about 1~4%.

Preferably, the polymer material is a thermoplastic polymer material or a thermosetting polymer material, selected from polyvinyl butyral (PVB), vinyl acetate copolymer (EVA), epoxy resin (EP) and polyethylene (PE) At least one material or other alternative materials in the formed group. In this example, the thermal The plastic polymer material is polyvinyl butyral (PVB). Its main function is to provide an ion conduction path, improve the adhesion and ion conductivity of the colloidal electrolyte, and at the same time have good electronic insulation.

Preferably, the lithium salt is selected from lithium hexafluorophosphate (LiPF ₆ ), lithium tetrafluoroborate (LiBF ₄ ), lithium perchlorate (LiClO ₄ ), lithium hexafluoroarsenphospholipid (LiAsF ₆ ), lithium trifluoromethanesulfonate (LiCF ₃ SO ₃ ), lithium bisoxalate borate (LiBOB), lithium difluorooxalate borate (LiODFB), lithium bis(trifluoromethylsulfonyl)imide (LiTFSI), lithium bis(fluorosulfonyl)imide (LiFSI), lithium difluorophosphate (LiPO ₂ F ₂ ) and lithium tetrafluorooxalate phosphate (LiFOP) at least one material or other alternative materials. In this embodiment, the lithium salt is lithium perchlorate (LiClO4), which can dissociate lithium ions and move between the thermoplastic polymers to provide a better ion-conducting function.

Preferably, the organic solvent is selected from propylene carbonate (PC), ethylene carbonate (EC), butyl propyl ester (γ-BL), N-methyl-pyrrolidine (NMP) and dimethyl carbonate (DMC) At least one material or other alternative materials in the formed group. The organic solvent can transfer lithium ions therein, and can help ions dissociate from the lithium salt. The organic solvent preferably has a high boiling point.

Preferably, the plasticizer is selected from Diethylene Glycol Monobutyl Ether or Adipic acid. In this embodiment, the plasticizer is diethylene glycol butyl ether. The addition of the plasticizer can improve the light transmittance of the electrolyte and improve the applicability of the electrolyte, especially for electrochromic devices (Electrochromic device/ECD).

Preferably, the ionic solvent consists essentially of cyclopropyl. In this example, the ionic solvent is mainly cyclopropyl with chlorate [(Pmim)(ClO ₄ )]. The ionic solvent provides other conductive ions different from lithium ions to increase the ion concentration of the electrolyte and at the same time improve the environmental stability of lithium ions.

Preferably, the auxiliary material is at least one material selected from the group consisting of toner, UV absorber, light stabilizer, temperature stabilizer and silicon powder. The toner can be a color material of any color, and can be used for light filtering and depth adjustment. The UV absorber consists of titanium dioxide, 2-(2'-hydroxyl-5'-tert-octylphenyl)benzotriazole, 2-(2'-hydroxyl-5'-tert-octylphenyl)benzotriazole The composition of the mixture of oxatriazole can improve the lifespan and environmental durability of the adhesive. The light stabilizer is composed of pentaerythritol tetrakis[-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate as the main material, which can improve the deterioration caused by the oxidative degradation of polymers that absorb UV light. The temperature stabilizer is composed of ethylene glycol (EG)-based materials to improve the low-temperature antifreeze and high-temperature anti-volatility properties of the adhesive. The size of silicon powder can be 10 ⁵ to 10 nanometers in any shape, which improves the mechanical properties and electrical insulation properties of the adhesive.

After the thermoplastic polymer, the lithium salt and the organic solvent are mixed, the thermoplastic polymer is swelled by the organic solvent to form a polymer network. The highly electronegative atoms (such as oxygen) or hydroxyl groups (ie OH ⁻ ) on the main chain or side chain of the thermoplastic polymer have unpaired electrons. Therefore, lithium ions (Li ⁺ ) dissociated from the lithium salt form a temporary coordination bond with the thermoplastic polymer to be transported in the polymer network. The presence of the organic solvent provides another conduction mode for lithium ions, so that lithium ions can move in the above-mentioned colloidal polymer electrolyte through the organic solvent.

The electrolyte manufacturing method of this embodiment includes: a drying step (S0), placing a polymer material at a reaction temperature of about 50-70° C., and a reaction time of about 15-30 minutes, and drying to obtain a dried polymer material. ; A material mixing step (S1), stirring the dried polymer material with a lithium salt, an organic solvent, a plasticizer, an ionic solution, and an auxiliary material to form a colloidal electrolyte; and a kneading Step (S2), placing the colloidal electrolyte at a reaction temperature of about 70-140° C. for about 2-10 minutes, and kneading to make the colloidal electrolyte uniform. In this embodiment, a stirrer is used to stir in the material mixing step (S1), and a kneader is used to uniformly mix the colloidal electrolyte under mechanical force and chemical action in the mixing step (S2).

Fig. 2 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention. Please refer to Figure 2, preferably, the method of this embodiment further includes an extrusion granulation step (S3), extruding the colloidal electrolyte after the kneading step (S2), and using a high-speed cutter to granulate rapidly Cool down and dry to form a granular electrolyte. In this embodiment, after the colloidal electrolyte is extruded by a screw, the temperature of the colloidal electrolyte is rapidly cooled and dried with a high-speed cutter by a granulator to form a granular electrolyte, which makes the finished product easy to store and facilitates the use in subsequent processes. Regarding cooling and drying, for example, water or organic solvents can be used to cool down, and then dried by air drying.

Preferably, the working temperature in the extrusion granulation step (S3) is about 100-140°C, the extrusion pressure is about 0.2-1 million Pascals (MPa), and the particle size of the granular colloidal electrolyte produced is About 1~30 mm. In this embodiment, the particle size of the electrolyte is 4 mm, the working temperature is 85° C., and the extrusion pressure is 0.8 million Pascal (MPa).

Fig. 3 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention. Please refer to Figure 3. Preferably, for the convenience of application in the later stage of the process, the electrolyte manufacturing method of this embodiment further includes a first colloidal electrolyte membrane production step (S41), and the kneading step (S2) after kneading the The colloidal electrolyte is heated and melted at about 80~150°C to form a fluid colloid, which is injected into the fluid colloid through the pressure of the cavity of a coating head. The top of the coating head has a slit outlet with an adjustable caliber. The fluid colloid flows out from the slit outlet evenly, and is coated on a release film to form a film state, and then quickly sprayed by an air knife. The temperature is lowered to control the thickness to form a colloidal electrolyte membrane. In this embodiment, the heating and melting temperature is 95°C, and the fluid colloid is injected into the fluid colloid through the pressure of the coating head cavity. The liquid colloid flows out from the slit outlet of the coating head, and the fluid colloid runs on the release film to form a film state, and the film is rapidly cooled by an air knife to control the thickness of the film to form a colloidal electrolyte film.

Fig. 4 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention. Please refer to Figure 4. Preferably, for the convenience of application in the back-end process requirements, the electrolyte manufacturing method of this embodiment further includes a The second colloidal electrolyte membrane production step (S42), the granular electrolyte produced in the extrusion granulation step (S3) is placed at a reaction temperature of about 70-140°C, and the reaction time is about 2-10 minutes, and kneading for The granular electrolyte forms a second colloidal electrolyte, and the second colloidal electrolyte is heated and melted at about 80-150° C. to form a fluid colloid, which is injected into the fluid colloid through the pressure of a cavity of a coating head. The top of the coating head has a slit outlet with an adjustable caliber. The fluid colloid flows out from the slit outlet evenly, and is coated on a release film to form a film state, and then quickly sprayed by an air knife. The temperature is lowered to control the thickness of the film to form a colloidal electrolyte film. In this embodiment, the reaction temperature is 90°C, the reaction time is 5 minutes, and the granular electrolyte is formed into a colloidal electrolyte by using a kneader, and then the colloidal electrolyte is heated and melted at 95°C to form a fluid colloid. The fluid gel is injected through the pressure of the applicator head cavity. The top of the coating head is a slit outlet with adjustable caliber. The fluid colloid flows out from the slit outlet of the coating head uniformly. The fluid colloid runs on the release film to form an adhesive film. appearance. Wherein, the release film is a paper film, a cloth film or a plastic film. The film is rapidly cooled by an air knife to control the thickness of the film to form a colloidal electrolyte membrane. Finally, it is coated with a release film and passed through the film winding equipment to produce a colloidal electrolyte membrane.

Fig. 5 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention. Please refer to Fig. 5. Preferably, for the convenience of application in the later stage of the process, the electrolyte manufacturing method of this embodiment further includes a third colloidal electrolyte membrane production step (S43), the kneading step (S2) after kneading The colloidal electrolyte body is heated and extruded, wherein the extrusion temperature is about 80~160°C, the wind pressure at the air knife nozzle is about 95~1000 kilopascals (kPa), and the extrusion pressure is about 0.5~1 million Pascal (MPa) ), forming a colloidal electrolyte membrane with a thickness of about 0.005-3 mm. In this embodiment, the extrusion temperature is 120°C, the blowing angle of the air knife nozzle is 90°~105° and the gap between the extrusion nozzles is 1 mm, the extrusion pressure is 0.6 million Pa (MPa), and the final thickness is 0.6mm colloidal electrolyte membrane.

Fig. 6 is a flow chart of another embodiment of the electrolyte manufacturing method of the present invention. Please refer to FIG. 6. Preferably, for the convenience of application in the later stage of the process, the electrolyte manufacturing method of this embodiment further includes a fourth colloidal electrolyte membrane production step (S44), and the extrusion granulation step (S3) produces For the granular electrolyte, the granular electrolyte is heated at about 70-140° C. to form a thick colloid by an extrusion casting method, and then the thick colloid is heated and extruded. Among them, the extrusion temperature is about 80~160℃, the wind pressure at the air knife nozzle is about 95~1000 kilopascals (kPa), the extrusion pressure is about 0.5~1 million Pascals (MPa), and the forming thickness is about 0.005~ 3mm colloidal electrolyte membrane. In this embodiment, the granular electrolyte is heated at 100°C to become a thick colloid, the extrusion temperature is 120°C, the air pressure at the nozzle of the air knife is about 100 kilopascals (kPa), and the air volume is along the entire width of the extrusion nozzle. The blowing angle of the air knife nozzle is 90°~105°, the gap between the extrusion nozzles is about 1 mm, the extrusion pressure is 0.6 million Pa (MPa), and finally a colloidal electrolyte film with a thickness of 0.6 mm is formed.

The colloidal electrolyte of the present invention has high cohesive mechanical properties and low fluidity due to the specific components and specific ratios among the components, and the components are uniformly dispersed by kneading. Compared with solid electrolytes, its ionic conductivity is also significantly improved, achieving high ionic conductivity, no need for spacers, and adhesion to glass or plastic. Its high safety will not cause liquid leakage, and it also has high adhesiveness, high light transmittance and high conductivity.

The electrolyte of the present invention can be applied to the electrolyte layer of the electrochromic element and completed by gluing technology. In addition, commonly used energy storage components such as supercapacitors, lithium polymer batteries, and electrolytes of super batteries all need to be equipped with a separator to separate the electrodes to prevent the electrodes from being conducted. In contrast, when the electrolyte of the present invention is made into a glue film, it can be directly used between two electrodes as a spacer and has the functions of ion transfer and electron barrier.

The above-mentioned embodiments are only to illustrate the technical ideas and characteristics of the present invention, and its purpose is to enable those skilled in this art to understand the content of the present invention and implement it accordingly, and should not be limited by this In the patent scope of the present invention, all equivalent changes or modifications made according to the spirit of the present invention and the contents of the description shall be covered in the patent scope of the present invention.

S0: drying step

S1: Material mixing step

S2: mixing step

Claims (14)

An electrolyte, comprising: a polymer material, a lithium salt, an organic solvent, a plasticizer, an ionic solvent and an auxiliary material, which are mixed to form a colloidal state, wherein the polymer material is greater than 20% by weight and less than 45%, the lithium salt is greater than 2 and less than 10%, the organic solvent is greater than 10 and less than 20%, the plasticizer is greater than 10 and less than 20%, the ionic solvent is greater than 1 and less than 4%, the auxiliary material is greater than 1 and less than 4%. The electrolyte as described in claim 1, wherein the polymer material is a thermoplastic polymer material or a thermosetting polymer material selected from polyvinyl butyral (PVB), vinyl acetate copolymer (EVA), epoxy resin (EP ) and polyethylene (PE) at least one material in the group consisting of or other alternative materials. The electrolyte as described in Claim 1, wherein the lithium salt is selected from lithium hexafluorophosphate (LiPF ₆ ), lithium tetrafluoroborate (LiBF ₄ ), lithium perchlorate (LiClO ₄ ), lithium hexafluoroarsenphospholipid (LiAsF ₆ ), Lithium trifluoromethanesulfonate (LiCF ₃ SO ₃ ), lithium bisoxalate borate (LiBOB), lithium difluorooxalate borate (LiODFB), lithium bis(trifluoromethylsulfonyl)imide (LiTFSI), bis(fluoro At least one material selected from the group consisting of lithium sulfo)imide (LiFSI), lithium difluorophosphate (LiPO ₂ F ₂ ) and lithium tetrafluorooxalate phosphate (LiFOP), or other alternative materials. The electrolyte as described in claim 1, wherein the organic solvent is selected from propylene carbonate (PC), ethylene carbonate (EC), butyl propyl ester (γ-BL), N-methyl-pyrrolidine (NMP) and At least one material in the group consisting of dimethyl carbonate (DMC) or other alternative materials. The electrolyte according to claim 1, wherein the plasticizer is selected from Diethylene Glycol Monobutyl Ether or Adipic acid. The electrolyte according to claim 1, wherein the ionic solvent consists essentially of a main cyclopropyl group. The electrolyte according to claim 1, wherein the auxiliary material is at least one material selected from the group consisting of toner, UV absorber, light stabilizer, temperature stabilizer and silicon powder. A method of manufacturing an electrolyte as claimed in claim 1, comprising: a drying step (S0), placing a polymer material at a reaction temperature of about 50-70°C, and a reaction time of about 15-30 minutes, and drying to obtain a dry The polymer material; a material mixing step (S1), stirring the dried polymer material with a lithium salt, an organic solvent, a plasticizer, an ionic solution and an auxiliary material to form a colloidal electrolyte; A mixing step (S2), the colloidal electrolyte is placed at a reaction temperature of about 70-140° C., and the reaction time is about 2-10 minutes, and the colloidal electrolyte is mixed to make the colloidal electrolyte uniform. The manufacturing method of the electrolyte as described in Claim 8, further comprising an extrusion granulation step (S3), extruding the colloidal electrolyte after kneading in the kneading step (S2), using a high-speed cutter to granulate while rapidly cooling down and drying to form a granular electrolyte. The manufacturing method of electrolyte as described in Claim 9, wherein, the working temperature of the extruding granulation step (S3) is about The temperature is 100~140°C, the extrusion pressure is about 0.2~1 million Pascal (MPa), and the particle size of the granular electrolyte produced is about 1~30 mm. The method for producing an electrolyte according to claim 8, further comprising a first colloidal electrolyte membrane production step (S41), the colloidal electrolyte after kneading in the kneading step (S2) is heated at about 80-150°C Heating and melting to form a fluid colloid, which is injected into the fluid colloid through the pressure of the cavity of a coating head. The top of the coating head has a slit outlet with adjustable caliber. It flows out from the outlet of the slit, and is coated on a release film to form a film state, and then the temperature is rapidly lowered by an air knife to control the thickness to form a colloidal electrolyte film. The manufacturing method of the electrolyte as described in Claim 9, which further includes a second colloidal electrolyte membrane production step (S42), the granular electrolyte produced in the extrusion granulation step (S3) is placed at a reaction temperature of about 70~140℃, the reaction time is about 2~10 minutes, and the granular electrolyte is mixed to form a second colloidal electrolyte, and the second colloidal electrolyte is heated and melted at about 80~150℃ to form a fluid colloid , inject the fluid colloid through the pressure of the cavity of a coating head, the top of the coating head has a slit outlet with adjustable caliber, the fluid colloid flows out from the slit outlet evenly, coating Form an adhesive film on a release film, and then quickly cool down with an air knife to control the thickness of the adhesive film to form a colloidal electrolyte membrane. The method for producing electrolyte according to claim 8, further comprising a third colloidal electrolyte membrane production step (S43), heating and extruding the colloidal electrolyte body after kneading in the kneading step (S2), wherein , the extrusion temperature is about 80~160℃, the wind pressure at the air knife nozzle is about 95~1000 kilopascals (kPa), the extrusion pressure is about 0.5~1 million Pascals (MPa), and the forming thickness is about 0.005~3 mm colloidal electrolyte membrane. The method for producing electrolyte according to claim 9, further comprising a fourth colloidal electrolyte membrane production step (S44), wherein the granular electrolyte produced in the extrusion granulation step (S3) is extruded The flow method heats the granular electrolyte at about 70~140℃ to form a thick colloid, and then heats and extrudes the thick colloid. The extrusion temperature is about 80~160℃, and the air pressure at the nozzle of the air knife is about 95 ~1000 kilopascals (kPa), the extrusion pressure is about 0.5~1 million Pascals (MPa), and a colloidal electrolyte membrane with a thickness of about 0.005~3 mm is formed.

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