Device for manufacturing gel type electrolyte

Abstract

The utility model provides a device for manufacturing a gel type electrolyte, which comprises a shell, a first electrode and a second electrode, wherein the shell is provided with an inner cavity and an opening which is partially opened in a first direction; a door rotatably mounted at the opening of the housing; the first feeding pipe penetrates through a first side wall, in a second direction perpendicular to the first direction, of the shell and is communicated with the inner cavity; the discharging pipe is opposite to the first feeding pipe in the second direction, penetrates through a second side wall, opposite to the first side wall, of the shell and is communicated with the inner cavity; the second feeding part comprises a first sub-feeding pipe penetrating through the shell in the first direction, a second sub-feeding pipe extending from the end, located in the inner cavity of the shell, of the first sub-feeding pipe to the discharging pipe in the second direction, and a spray head arranged on the second sub-feeding pipe; and a heating part provided outside the housing. According to the device disclosed by the invention, the dispersity of polyaniline in the gel type electrolyte can be improved.

Description

Technical Field

[0001] Aspects of embodiments of the present disclosure relate to an apparatus for manufacturing a gel-type electrolyte. Background Art

[0002] Although liquid electrolytes have high ionic conductivity and good electrode wettability, they have safety problems such as easy leakage, strong corrosiveness, flammability and explosiveness. These problems not only limit the application scenarios of lithium-ion batteries (LIBs), but also pose potential threats to the environment and personal safety.

[0003] To improve these drawbacks, gel-type electrolytes (GPEs) have gradually attracted attention, which combine the advantages of liquid electrolytes and solid electrolytes. GPEs have better safety, and at the same time their electrochemical performance is close to that of liquid electrolytes, which makes them the focus of research in recent years.

[0004] The research on GPEs mainly focuses on improving their electrochemical performance and safety. For example, by cross-linking, copolymerizing or blending to modify traditional polymer matrices, polymer matrices with better electrochemical characteristics can be prepared to improve safety. In addition, researchers are also exploring the use of renewable and degradable polymer materials to prepare GPEs, which not only helps to reduce environmental pressure, but also can reduce production costs and increase the feasibility of industrial production.

[0005] However, the research and application of GPEs still face challenges. For example, although the addition of a large amount of liquid plasticizer can improve ionic conductivity, it may also reduce the chemical stability of the polymer matrix, affecting the safety and service life of GPEs. Therefore, effectively improving the conductivity has become the primary goal of current gel-type electrolytes. Summary of the Utility Model

[0006] An object of the present disclosure is to provide an apparatus for manufacturing a gel-type electrolyte that can improve the dispersion of polyaniline in the gel-type electrolyte.

[0007] Another object of the present disclosure is to provide a method for manufacturing a gel-type electrolyte with high conductivity.

[0008] According to one aspect of the present disclosure, there is provided an apparatus for manufacturing a gel electrolyte, the apparatus comprising: a housing having an inner cavity for accommodating materials of the gel electrolyte and an opening that is partially open in a first direction; a door rotatably mounted at the opening of the housing to place the housing in a closed or open state; a first feed pipe passing through a first side wall of the housing in a second direction perpendicular to the first direction and communicating with the inner cavity to supply a first material of the gel electrolyte to the inner cavity; a discharge pipe passing through a second side wall of the housing opposite to the first side wall in the second direction and communicating with the inner cavity opposite to the first feed pipe; a second feed portion including a first sub-feed pipe passing through the housing in the first direction, a second sub-feed pipe extending from an end of the first sub-feed pipe located in the inner cavity of the housing in the second direction toward the discharge pipe, and a nozzle provided on the second sub-feed pipe to spray a second material of the gel electrolyte toward the discharge pipe; and a heating portion provided outside the housing to heat the materials of the gel electrolyte in the inner cavity of the housing.

[0009] According to an embodiment of the present disclosure, the second feed portion may be disposed close to the first feed pipe, and the nozzle may be located on an extension line in the second direction between the first feed pipe and the discharge pipe.

[0010] According to an embodiment of the present disclosure, the nozzle may include: a main board having a through hole sleeved on an outer wall of the second sub-feed pipe; a sub-board disposed along an edge of the main board and extending from the edge of the main board toward the discharge pipe; and a nozzle provided on the sub-board and having a plurality of holes.

[0011] According to an embodiment of the present disclosure, the plurality of holes may be arranged in the first direction and a third direction perpendicular to the first direction and the second direction.

[0012] According to an embodiment of the present disclosure, the shortest distance between adjacent holes among the plurality of holes may be between 1 mm and 2 mm.

[0013] According to an embodiment of the present disclosure, the aperture of each of the plurality of holes may be 0.5 mm to 1 mm.

[0014] According to an embodiment of the present disclosure, the inner diameter of the first feed pipe and the inner diameter of the second sub-feed pipe may be substantially equal.

[0015] According to an embodiment of the present disclosure, the second feed portion may further include a pump connected to the first sub-feed pipe to supply a second material of the gel electrolyte to the inner cavity.

[0016] According to an embodiment of the present disclosure, the apparatus may further include a pump connected to the first feed pipe to supply a first material of the gel electrolyte to the inner cavity.

[0017] According to an embodiment of the present disclosure, the device may further include a valve provided on the discharge pipe to make the discharge pipe in a closed or open state.

[0018] According to an embodiment of the present disclosure, the device may further include a flow meter provided in the housing to monitor in real time the flow rate of the first material in the housing.

[0019] According to another aspect of the present disclosure, there is provided a method for manufacturing a gel-type electrolyte, which is performed by using the above-mentioned device for manufacturing a gel-type electrolyte, and the method includes the following steps: 1) filling the inner cavity of the housing with a first material, the first material including an acrylic monomer, an acrylate monomer, an ethylene glycol dimethacrylate crosslinking agent, and a benzoyl peroxide initiator; 2) supplying the first material via the first feed pipe and supplying a second material at a temperature of 0°C to 3°C via the second feed part at the same flow rate, and keeping the discharge pipe in an open state, wherein the second material includes aniline, a ternary heteropolyacid, ammonium persulfate, and water; 3) closing the first feed pipe, the second feed part, and the discharge pipe so that the second material forms a heteropolyacid-doped polyaniline within a first predetermined time and the first material around the formed heteropolyacid-doped polyaniline forms an acrylate polymer; and 4) heating the housing at a predetermined temperature via a heating part for a second predetermined time so that the remaining part of the first material polymerizes to form an acrylate polymer, thereby forming a gel-type electrolyte.

[0020] According to an embodiment of the present disclosure, the flow rate satisfies that the Re value is greater than 4000, where the Re value is represented by the following formula:

[0021]

[0022] where Re is the Reynolds number; d is the diameter or equivalent diameter of the housing, in m; u is the flow rate of the first material, in m / s; ρ is the density of the acrylic monomer, in kg / m 3 ; μ is the viscosity of the acrylic monomer, in N·m -2 ·s.

[0023] According to an embodiment of the present disclosure, the first predetermined time may be 1.5 h to 3 h.

[0024] According to an embodiment of the present disclosure, the predetermined temperature may be 50°C to 60°C, and the second predetermined time may be 14 h to 16 h.

[0025] According to an embodiment of the present disclosure, the molar ratio of the acrylic monomer, acrylate monomer, and ethylene glycol dimethacrylate crosslinking agent in the first material may be 10:2:0.5, and the addition amount of the benzoyl peroxide initiator may be 1 wt% of the total mass of the monomers.

[0026] According to an embodiment of the present disclosure, the molar ratio of aniline, ternary heteropolyacid, and ammonium persulfate in the second material may be 1:0.01 to 0.03:1.4, and the addition amount of water may be 10 wt% of the total mass of aniline.

[0027] According to an embodiment of the present disclosure, step 2) may be performed for at least 1 minute or less than or equal to 2 minutes.

[0028] According to an embodiment of the present disclosure, the method further includes: after polymerizing the first material, opening the door to take out the gel-type electrolyte.

[0029] In an embodiment of the present disclosure, since the second material and the first material for forming heteropolyacid-doped polyaniline are simultaneously injected by the device of the present disclosure, and the first material is in a turbulent state, the second material is effectively dispersed by the first material in a turbulent state while forming heteropolyacid-doped polyaniline, and the polymerization of the dispersed second material is in an exothermic state, causing the first material around it to undergo a polymerization reaction, thereby being able to fix the formed heteropolyacid-doped polyaniline without aggregating the heteropolyacid-doped polyaniline. Therefore, the dispersibility of the heteropolyacid-doped polyaniline in the acrylate polymer is improved. Therefore, the conductivity of the gel-type electrolyte formed by the present disclosure is significantly increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Through the following description with reference to the drawings, the above and other aspects and features of the embodiments of the present disclosure will become more apparent, wherein:

[0031] Figure 1 is a perspective view of a device for manufacturing a gel-type electrolyte according to an embodiment of the present disclosure;

[0032] Figure 2 is a schematic diagram of a device for manufacturing a gel-type electrolyte according to an embodiment of the present disclosure; and

[0033] Figure 3 is a schematic diagram of a second feeding part in a device for manufacturing a gel-type electrolyte according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Now, embodiments will be described in detail with reference to the examples, which are illustrated in the drawings. In this regard, the described embodiments may have different forms and should not be construed as limited to the description set forth herein. Therefore, the embodiments are only described below with reference to the drawings to explain the aspects and features of this description.

[0035] For ease of description, spatial relative terms such as "under", "below", "lower", "above", "upper", etc. may be used herein to describe the relationship of one element or feature shown in the figures to another element or feature. It will be understood that, in addition to the orientation shown in the figures, spatial relative terms are also intended to cover different orientations of the device during use or operation. For example, if the device in the figures is flipped, an element described as "under" or "below" other elements or features will be oriented "above" or "over" the other elements or features. Thus, the term "below" can cover both the upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatial relative descriptors used herein should be interpreted accordingly.

[0036] In the following, embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0037] Figure 1 is a perspective view of a device for manufacturing a gel electrolyte according to an embodiment of the present disclosure; Figure 2 is a schematic view of a device for manufacturing a gel electrolyte according to an embodiment of the present disclosure; and Figure 3 is a schematic view of a second feed portion in a device for manufacturing a gel electrolyte according to an embodiment of the present disclosure.

[0038] Referring to Figure 1 、 Figure 2 and Figure 3 According to embodiments of the present disclosure, a device for manufacturing a gel electrolyte includes: a housing 100, a door 110, a second feed portion 200, a first feed pipe 300, a discharge pipe 400, and a heating portion.

[0039] The housing 100 may have a cuboid shape and have an inner cavity for accommodating the material of the gel electrolyte. However, the embodiments of the present disclosure are not limited thereto. The cuboid shape has two surfaces in the first direction Z, two other surfaces in the third direction Y perpendicular to the first direction Z, and two side walls (e.g., a first side wall and a second side wall opposite to each other) in the second direction X perpendicular to the first direction Z and the third direction Y.

[0040] In addition, in order to facilitate the removal of the formed gel electrolyte from the housing 100, an opening may be provided in the housing 100. Specifically, the housing 100 may have a partially open opening in the first direction Z.

[0041] Therefore, the housing 100 may be formed of an insulating material (e.g., glass, ceramic, etc.). However, the present disclosure is not limited thereto.

[0042] The door 110 can be rotatably mounted at the opening of the housing 100 to place the housing 100 in a closed or open state. Specifically, the door 110 can be connected to the opening of the housing 100 by a hinge, such that the door 110 can be rotatably opened or closed relative to the housing 100.

[0043] In addition, the door 110 can be formed of the same insulating material as the housing 100. However, the present disclosure is not limited thereto, and the door 110 can be formed of any suitable material as long as it can keep the door 110 in an insulating state.

[0044] The first feed pipe 300 can pass through the first side wall of the housing 100 in the second direction X to communicate with the inner cavity, so as to supply the first material of the gel-type electrolyte to the inner cavity. In addition, in order to supply the first material, the first feed pipe 300 can be connected to a pump (for example, a peristaltic pump).

[0045] The discharge pipe 400 can pass through the second side wall of the housing opposite to the first side wall in the second direction X opposite to the first feed pipe 300 to communicate with the inner cavity. In addition, a valve can be provided on the discharge pipe 400 to place the discharge pipe in a closed or open state.

[0046] The first feed pipe 300 and the discharge pipe 400 can be formed of the same material.

[0047] Referring to Figure 3 , the second feed part 200 can supply the second material of the gel-type electrolyte, and can include a first sub-feed pipe 210, a second sub-feed pipe 220 and a spray head 230. In addition, in order to extend the contact time between the second material and the first material, preferably, the second feed part 230 can be arranged close to the first feed pipe 300.

[0048] The first sub-feed pipe 210 can pass through the housing 100 in the first direction Z to communicate with the inner cavity. Specifically, the first sub-feed pipe 210 can pass through the part of the housing 100 except the opening in the first direction Z.

[0049] The second sub-feed pipe 220 can extend from the end of the first sub-feed pipe 210 located in the inner cavity of the housing 100 in the second direction X toward the discharge pipe 400.

[0050] In addition, the first sub-feed pipe 210, the second sub-feed pipe 220, the first feed pipe 300 and the discharge pipe 400 can be formed of the same material. Moreover, the first sub-feed pipe 210 and the second sub-feed pipe 220 can be integrally formed. However, the present disclosure is not limited thereto.

[0051] In addition, the diameter (e.g., inner diameter) of the second sub-feed pipe 220 can be substantially the same as the diameter (e.g., inner diameter) of the first feed pipe 300, so as to facilitate the control of the ratio relationship between the first material and the second material.

[0052] The nozzle 230 can be disposed on the second sub-feed pipe 220 to spray the second material of the gel-type electrolyte toward the discharge pipe 400. In addition, in order to improve the dispersibility of the second material in the first material, preferably, the nozzle 230 can be located on the extension line in the second direction X between the first feed pipe 300 and the discharge pipe 400.

[0053] The nozzle 230 can include: a main board having a through hole sleeved on the outer wall of the second sub-feed pipe 220; a sub-board disposed along the edge of the main board and extending from the edge of the main board toward the discharge pipe 400; and a nozzle 240 disposed on the sub-board and having a plurality of holes.

[0054] The main board and the sub-board can be integrally formed. However, the embodiments of the present disclosure are not limited thereto.

[0055] In addition, the plurality of holes can be arranged along the first direction Z and the third direction Y.

[0056] Moreover, in order to improve the dispersibility of the second material in the first material, preferably, the shortest distance between adjacent holes among the plurality of holes can be between 1 mm and 2 mm, and the aperture of each of the plurality of holes can be 0.5 mm to 1 mm.

[0057] In addition, the second feed part 200 can further include a pump (e.g., a peristaltic pump) connected to the first sub-feed pipe 210 to supply the second material of the gel-type electrolyte to the inner cavity.

[0058] According to an embodiment of the present disclosure, the device can further include a flow meter (e.g., a rectangular flow meter) disposed inside the housing 100 to monitor the flow rate of the first material in the inner cavity.

[0059] The heating part can be disposed outside the housing 100 to heat the material of the gel-type electrolyte in the inner cavity of the housing 100.

[0060] The device for manufacturing a gel-type electrolyte according to an embodiment of the present disclosure can improve the dispersibility of the polyoxometalate-doped polyaniline formed by the second material in the acrylate polymer formed by the first material. Therefore, the conductivity of the gel-type electrolyte formed by the present disclosure is significantly increased.

[0061] The process steps for manufacturing a gel-type electrolyte using the device for manufacturing a gel-type electrolyte will be described below.

[0062] According to an embodiment of the present disclosure, a method for manufacturing a gel electrolyte is performed by using the above-described apparatus for manufacturing a gel electrolyte, and the method includes: Step 1), filling the inner cavity of the housing with a first material; Step 2), supplying the first material through the first feed pipe at the same flow rate while supplying a second material at a temperature of 0°C to 3°C through the second feed part, and keeping the discharge pipe open; Step 3), closing the first feed pipe, the second feed part, and the discharge pipe so that the second material forms polyoxometalate-doped polyaniline within a first predetermined time and the first material around the formed polyoxometalate-doped polyaniline forms an acrylate polymer; and Step 4), heating the housing at a predetermined temperature through the heating part for a second predetermined time so that the remaining part of the first material polymerizes to form an acrylate polymer, thereby forming a gel electrolyte.

[0063] In Step 1), the inner cavity of the housing 100 is filled with the first material. Specifically, the inner cavity of the housing 100 can be filled with the first material through the peristaltic pump via the first feed pipe 300, or the door 110 can be opened to fill the inner cavity of the housing 100 with the first material through the opening of the housing 100. When filling the inner cavity of the housing 100 with the first material through the first feed pipe 300, the first material can be slowly injected to expel the gas in the inner cavity of the housing.

[0064] The first material can be a main component of the gel electrolyte and can include acrylic monomers, acrylate monomers, ethylene glycol dimethacrylate crosslinker, and benzoyl peroxide (BPO) initiator.

[0065] In an embodiment of the present disclosure, the acrylic monomers can include at least one of acrylic acid, methacrylic acid, ethylacrylic acid, propylacrylic acid, and isobutylacrylic acid. The acrylate monomers can include at least one of methyl methacrylate and ethyl methacrylate.

[0066] In an embodiment of the present disclosure, the ethylene glycol dimethacrylate crosslinker can include at least one of ethylene glycol dimethacrylate, ethylene glycol dimethylacrylate, ethylene glycol diethylacrylate, and ethylene glycol dipropylacrylate.

[0067] In an embodiment of the present disclosure, benzoyl peroxide can initiate the polymerization of the monomers of the first material and will not have an adverse effect on the polymerization of the second material.

[0068] The acrylic monomers and acrylate monomers can polymerize under the action of the initiator and the crosslinker at a predetermined temperature (for example, 55°C to 60°C), thereby generating an acrylate polymer.

[0069] In an embodiment of the present disclosure, the molar ratio of acrylic monomers, acrylate monomers, and ethylene glycol dimethacrylate crosslinking agent in the first material may be 10:2:0.5, and the addition amount of benzoyl peroxide initiator may be 1 wt% of the total mass of the monomers.

[0070] After the inner cavity of the housing 100 is filled with the first material (step 1), the first material can be supplied via the first feed pipe 300 at the same flow rate while the second material at a temperature of 0°C to 3°C is supplied via the second feed portion 200, for example, by a peristaltic pump. That is to say, the first material and the second material are supplied into the inner cavity of the housing 100 together. At the same time, the discharge pipe 400 is opened so that the discharge pipe 400 is in an open state.

[0071] The second material can be used as a conductive agent for the gel-type electrolyte and may include aniline, ternary heteropolyacid, ammonium persulfate, and water. In an embodiment of the present disclosure, the molar ratio of aniline, ternary heteropolyacid, and ammonium persulfate in the second material may be 1:0.01 - 0.03:1.4, and the addition amount of water may be 10 wt% of the total mass of aniline.

[0072] In an embodiment of the present disclosure, the ternary heteropolyacid as a dopant can dope the polymerized aniline and may include H7SiW9V3O 40 . In addition, ammonium persulfate acts as an initiator to polymerize aniline. Under the combined action of the ternary heteropolyacid and the initiator, a heteropolyacid-doped polyaniline can be generated, thereby endowing polyaniline with electrical conductivity.

[0073] In addition, in the art, aniline, ternary heteropolyacid, and ammonium persulfate can usually initiate polymerization at a relatively low temperature. Therefore, in the present disclosure, in order to ensure that aniline, ternary heteropolyacid, and ammonium persulfate polymerize in the housing or in the first material in the housing, the second material can be maintained at a temperature of 0°C to 3°C before being supplied via the second feed portion 200 to slow down the polymerization of aniline, ternary heteropolyacid, and ammonium persulfate in the second feed portion and avoid clogging the spray head 230. When the second material is supplied into the first material, the polymerization reaction rate of the second material in the first material is increased because the temperature is higher than 3°C.

[0074] In an embodiment of the present disclosure, in order to make the second material have a better dispersion effect in the first material, the supply of the first material in the housing can be in a turbulent state. Specifically, the flow rate (m / s) of the first material can be controlled to satisfy that the Re value is greater than 4000, where the Re value is represented by the following formula:

[0075]

[0076] wherein, Re is the Reynolds number; d is the diameter or equivalent diameter of the shell, in m; u is the flow rate of the first material, in m / s; ρ is the density of the acrylic monomer, in kg / m 3 ; μ is the viscosity of the acrylic monomer, in N·m -2 ·s..

[0077] In the present disclosure, since the first material is in a turbulent state, the second material supplied together with the first material is in a dispersed state under the drive of the first material. At the same time, the second material can undergo a polymerization reaction, and the polymerization of the second material is an exothermic reaction, which can cause the first material around it to also undergo a polymerization reaction, so that the polyaniline doped with heteropolyacid generated by polymerization can be fixed, and thus the polyaniline doped with heteropolyacid generated by polymerization can be better dispersed in the acrylate polymer formed by the polymerization of the first material.

[0078] In addition, in the embodiments of the present disclosure, if the flow rate of the second material supplied is less than the flow rate of the first material supplied, it may cause the supply of the second material to be cut off; if the flow rate of the second material supplied is greater than the flow rate of the first material supplied, it may cause a large amount of the second material to accumulate at the nozzle. Therefore, the first material and the second material need to be supplied simultaneously at the same flow rate.

[0079] In addition, in order to improve the dispersibility of the second material in the first material, preferably, the shortest distance between adjacent holes among the plurality of holes is set between 1 mm and 2 mm, and the aperture of each hole is 0.5 mm to 1 mm.

[0080] In addition, in order to balance the ratio of the first material and the second material in the shell 100, step 2) can be performed for at least 1 minute or less than or equal to 2 minutes.

[0081] In step 3), the first feed pipe, the second feed part and the discharge pipe are in a closed state, so that the second material can completely form polyaniline doped with heteropolyacid within a first predetermined time (for example, 1.5 h to 3 h). Since the temperature of the second material is higher than 3°C, the second material can already start to accelerate polymerization, and the heat released by the polymerization of the second material can reach the polymerization reaction of the first material around it, so that the polyaniline doped with heteropolyacid can be fixed by the acrylate polymer generated around it. In addition, since the second material has been dispersed by the first material in a turbulent state, the formed polyaniline doped with heteropolyacid is also dispersed in the acrylate polymer formed by the first material.

[0082] In step 4), the shell can be heated by the heating part at, for example, 50°C to 60°C for 14 h to 16 h, so that the remaining part of the first material is completely polymerized, and then a gel-type electrolyte is formed.

[0083] In addition, in the present disclosure, since different monomers require different curing times, after curing for a period of time, the gel-type electrolyte is prepared inside the housing. At this time, the door on the housing can be opened to take out the cured gel-type electrolyte, completing the preparation of the gel-type electrolyte.

[0084] In the embodiments of the present disclosure, due to the improved dispersion of polyaniline doped with heteropolyacid in the acrylate polymer. Therefore, the conductivity of the gel-type electrolyte formed in the present disclosure is significantly increased. Examples will be provided below for further illustration.

[0085] Example 1

[0086] First, pump the first material into the interior of the housing through a peristaltic pump. At the same time, close the discharge port to fill the interior space of the housing with the first material. Open the discharge port and inject the first material and the second material at a temperature of 3°C into the housing at a constant flow rate of 2000 mL / min. At the same time, use a flow meter to measure the flow rate inside the housing, and then balance for 1 minute to make the first material and the second material inside the housing reach the ratio relationship. At this time, close the second feeding part, the discharge pipe, and the first feeding pipe. The second material inside the housing starts to polymerize because it is higher than 3°C, and the acrylic monomers and acrylate monomers around it also start to polymerize. Thus, the polyaniline doped with heteropolyacid formed by the second material is fixed by the acrylic polymers around it. After 2 hours, when the polymerization of the second material is completed, heat up to 60°C and maintain for 14 hours to polymerize the remaining first material, thus completing the preparation of the gel-type electrolyte. The results are shown in Table 1. The conductivity of the obtained gel-type electrolyte is 3×10 -4 S / cm.

[0087] The corresponding parameters of the device are as follows: the diameter of the housing is 2 cm, the shortest distance between adjacent holes among the holes is 1 mm, and the aperture of each hole is 0.5 mm. The density and viscosity of acrylic acid are 1.051 g / cm3 and 1.149 mPa·s, respectively. In addition, the ratio relationship between the components used in the first material and the second material is shown in Table 1. Among them, the addition amount of benzoyl peroxide initiator is 1 wt% of the total mass of the monomers, and the addition amount of water is 10 wt% of the total mass of aniline.

[0088] Examples 2 and 3

[0089] Except for using the corresponding parameters in Table 1, Examples 2 and 3 are prepared in the same manner as in Example 1.

[0090] Comparative Example 1

[0091] Except for using the corresponding parameters in Table 1, Comparative Example 1 is prepared in the same manner as in Example 1.

[0092] Comparative Example 2

[0093] Aniline, ammonium persulfate, and ternary heteropolyacid were mixed in water at a molar ratio of 1:1.4:0.01, stirred evenly by mechanical stirring, reacted at room temperature for 2 h, and the ternary heteropolyacid-doped polyaniline produced by the reaction was separated and added to a mixture of acrylic acid, methyl methacrylate, and ethylene glycol diacrylate at a ratio of 10:2:0.5. Then, benzoyl peroxide initiator at 1 wt% of the total mass of acrylic acid-based and acrylate-based monomers was added. The mixed solution was poured into a mold, left standing for 2 h, and then heated to 60 °C and reacted for 12 h. The obtained results are shown in Table 1.

[0094] Table 1

[0095]

[0096] In Table 1, the ternary heteropolyacid is H7SiW9V3O 40 , where all ratios are molar ratios and the unit of conductivity is S / cm.

[0097] As can be seen from Table 1, when comparing Examples 1 to 3 with Comparative Example 1, it was found that the first material flow rate was too low to form a good turbulent state, resulting in uneven dispersion of the heteropolyacid-doped polyaniline in the acrylate polymer. Therefore, the conductivity of Comparative Example 1 was significantly lower than that of Examples 1 to 3. In addition, the conductivity of Examples 1 to 3 was significantly higher than that of Comparative Example 2 because the heteropolyacid-doped polyaniline with conductive properties was effectively dispersed in the gel-type electrolyte, thus significantly increasing the conductivity. While in Comparative Example 2, the conductivity decreased due to the lack of a dispersion arrangement during curing.

[0098] In summary, since the second material and the first material to form heteropolyacid-doped polyaniline are simultaneously injected through the device of the present disclosure, and the first material is in a turbulent state, the second material is effectively dispersed by the first material in a turbulent state while forming the heteropolyacid-doped polyaniline, and the polymerization of the dispersed second material is in an exothermic state, causing the surrounding first material to undergo a polymerization reaction, thereby being able to fix the formed heteropolyacid-doped polyaniline without aggregating the heteropolyacid-doped polyaniline. Therefore, the dispersion of the heteropolyacid-doped polyaniline in the acrylate polymer is improved. Consequently, the conductivity of the gel-type electrolyte formed by the present disclosure is significantly increased.

Claims

1. A device for manufacturing a gel electrolyte, characterized in that, The device includes: a housing having an inner cavity for accommodating the material of the gel-type electrolyte and an opening that is partially open in a first direction; a door rotatably mounted at the opening of the housing to place the housing in a closed or open state; a first feed pipe passing through a first side wall of the housing in a second direction perpendicular to the first direction and communicating with the inner cavity to supply a first material of the gel-type electrolyte to the inner cavity; a discharge pipe passing through a second side wall of the housing opposite to the first side wall and communicating with the inner cavity in the second direction opposite to the first feed pipe; a second feed part including: a first sub-feed pipe passing through the housing in the first direction; a second sub-feed pipe extending from an end of the first sub-feed pipe located in the inner cavity of the housing toward the discharge pipe in the second direction; and a nozzle provided on the second sub-feed pipe to spray a second material of the gel-type electrolyte toward the discharge pipe; and a heating part provided outside the housing to heat the material of the gel-type electrolyte in the inner cavity of the housing.

2. The device according to claim 1, wherein The second feed part is disposed close to the first feed pipe, and the nozzle is located on an extension line in the second direction between the first feed pipe and the discharge pipe.

3. The device according to claim 1, wherein The nozzle includes: a main board having a through hole sleeved on the outer wall of the second sub-feed pipe; a sub-board disposed along the edge of the main board and extending from the edge of the main board toward the discharge pipe; and a nozzle provided on the sub-board and having a plurality of holes.

4. The device according to claim 3, characterized in that, The plurality of holes are arranged in the first direction and a third direction perpendicular to the first direction and the second direction.

5. The device according to claim 3, characterized in that, The shortest distance between adjacent holes among the plurality of holes is between 1 mm and 2 mm.

6. The device according to claim 3, characterized in that The aperture of each of the plurality of holes is between 0.5 mm and 1 mm.

7. The device according to claim 1, characterized in that, The inner diameter of the first feed pipe is equal to the inner diameter of the second sub-feed pipe.

8. The device according to claim 1, characterized in that, The second feed part further includes a pump connected to the first sub-feed pipe to supply the second material of the gel-type electrolyte to the inner cavity.

9. The device according to claim 1, wherein, The device further includes a pump connected to the first feed pipe to supply the first material of the gel-type electrolyte to the inner cavity.

10. The device according to claim 1, characterized in that The device further includes a flow meter provided in the housing to real-time monitor the flow rate of the first material in the housing.

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