A process for the preparation of an electrical energy storage fabric

By weaving microcapacitors and wires into energy storage fibers and combining this with wet spinning technology to prepare energy storage fabrics, the challenges of miniaturization and micro-miniaturization of supercapacitors have been solved. This enables energy storage applications in wearable consumer goods such as clothing and improves the reliability and lifespan of capacitors.

CN119008262BActive Publication Date: 2025-11-04FUJIAN TORCH ELECTRON TECH CO LTD
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Patent Information

Application Number
CN202411380479.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-11-04
Estimated Expiration
2044-09-30

AI Technical Summary

Technical Problem

Existing supercapacitors are limited in miniaturization and micro-scale applications due to issues such as size constraints, high manufacturing costs, limited ionic conductivity, poor mechanical strength, low operating temperature range, and susceptibility to breakage. In particular, the promotion of supercapacitors using solid electrolytes in the new energy field is restricted.

Method used

A microcapacitor is woven with positive and negative electrode wires to form energy storage fibers. The energy storage fabric is prepared by wet spinning technology. Copper wire is used as the attachment support for the wires and solidified chemical fibers to improve the problem of easy threading during the spinning process. The process is simplified by unique electrode material coating and rolling method, which improves the reliability and life of the capacitor.

Benefits of technology

This technology enables the energy storage function of microcapacitors in wearable products such as clothing, improving the applicability and compatibility of capacitors, enhancing the yield of fabrics and the reliability and lifespan of capacitors, simplifying the manufacturing process and reducing internal resistance.

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Abstract

A kind of preparation process of electric energy storage fabric, the electric energy storage fabric is woven by energy storage fiber and first fiber spaced alternately as weft, second fiber as warp, the energy storage fiber includes energy storage unit and fiber layer wrapped in the periphery of energy storage unit, the energy storage unit includes multiple micro capacitors arranged at intervals, positive electrode wire connected at the positive electrode end surface of multiple micro capacitors and negative electrode wire connected at the negative electrode end surface of multiple micro capacitors;The structure of the electric energy storage fabric is limited by the application, and the energy storage fiber is formed by micro capacitor and positive electrode wire, negative electrode wire cooperation, so that the prepared fabric can be combined with small photovoltaic panel for outdoor green energy use, further improve the application range of micro capacitor, effectively improve its compatibility.
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Description

TECHNICAL FIELD

[0001] The application belongs to the field of energy storage fabric preparation, and particularly relates to a preparation process of an electric energy storage fabric. BACKGROUND

[0002] As a new high-level energy storage device, the super capacitor has the high power characteristics of the traditional capacitor and the high energy characteristics of the battery. Due to its unique high specific power, large current discharge capacity, super long temperature range, high reliability and green environmental protection, the super capacitor is widely used in the fields of electric power, transportation, communication, energy, aviation and the like.

[0003] The existing super capacitor has great limitations in size reduction due to the influence of structure, manufacturing process and manufacturing equipment. In particular, for the super capacitor with an organic electrolyte as a carrier fluid on the market, the super capacitor with a solid-state electrolyte as a carrier fluid has many defects such as high manufacturing cost, limited ionic conductivity, poor mechanical strength, low working temperature range, limited contact area, low specific capacity, easy to break and short circuit of the capacitor, which are obstacles to the preparation of the super capacitor with the solid-state electrolyte. As an energy storage element in the field of new energy, the super capacitor is miniaturized, micro-sized and ultra-micro-sized, so that the super capacitor is no longer limited to the fields of electric power, transportation, communication, energy, aviation and the like, but is integrated into people's life, food, housing and transportation, and a wider super capacitor energy storage application scenario is developed to improve people's convenient lifestyle and social development, which is the original intention of the application. SUMMARY

[0004] The application aims to overcome the defects of the prior art and provide a preparation process of an electric energy storage fabric.

[0005] The application adopts the following technical scheme:

[0006] The preparation process of the electric energy storage fabric comprises the following steps:

[0007] The preparation process of the electric energy storage fabric comprises the following steps:

[0008] Step 1, conveying the micro capacitor to a welding position, then respectively leading the positive electrode wire and the negative electrode wire to the welding position, and respectively welding the positive electrode wire and the negative electrode wire on the positive electrode end surface and the negative electrode end surface of the micro capacitor through the welding head to form the energy storage unit;

[0009] Step 2, transfer the energy storage unit to the coagulation tank, extrude the spinning dope from the spinneret to coat the energy storage unit, the spinning dope contacts the coagulation liquid in the coagulation tank, so that the solvent in the spinning dope disperses into the coagulation tank, and the fiber layer is coagulated;

[0010] Step 3, then transfer the energy storage unit coated with the fiber layer to above the cleaning tank, wash it with the cleaning nozzle, then transfer the energy storage unit coated with the fiber layer after cleaning to the dyeing device for dyeing, and then dry it in the drying device to form the energy storage fiber;

[0011] Step 4, the same material spinning dope is sent into the spinning equipment to prepare the first fiber and the second fiber respectively;

[0012] Step 5, the energy storage fiber and the first fiber are alternately arranged as weft, and the second fiber is arranged as warp to weave the electric energy storage fabric.

[0013] Further, the micro capacitor is conveyed to the welding position by the conveying belt, the positive lead and the negative lead are wound on the positive reel and the negative reel respectively, the positive reel and the negative reel are arranged above the conveying belt, the conveying directions of the positive lead and the negative lead are perpendicular to the conveying direction of the micro capacitor, and the perpendicular intersection forms the welding position.

[0014] Further, the spinning dope is formed by dissolving the chemical fiber with a solvent, and the solvent is one of dichloroethane, tetrachloroethane, chlorobenzene, cyclohexanone, tetrahydrofuran, dimethylformamide, white oil, paraffin oil, and kerosene.

[0015] Further, the coagulation liquid is one of inorganic salt solution, alcohol solution, and high polymer solution.

[0016] Further, the second fiber is arranged between two adjacent micro capacitors.

[0017] Further, the positive lead and the negative lead are both copper wires.

[0018] Further, the micro capacitor comprises a first monomer unit and a first negative pole column unit connected with the first monomer unit, the first monomer unit comprises a first shell with a first accommodating cavity formed inside and a first positive pole column arranged in the first accommodating cavity, and the outer wall of the first positive pole column is attached to the inner wall of the first accommodating cavity; the first negative pole column unit comprises a first negative pole column which can be embedded in the first positive pole column, a first diaphragm layer wrapped around the outer periphery of the first negative pole column, and a first sealing rubber ring sleeved on the upper end of the first negative pole column for sealing the first accommodating cavity, the first positive pole column has a first positioning hole formed inside for embedding the first negative pole column, and the top surface of the first negative pole column forms a negative electrode end surface connected with a negative electrode lead wire, and the bottom surface of the first shell forms a positive electrode end surface connected with a positive electrode lead wire.

[0019] Further, the first negative pole column comprises a first support portion which can be supported on the upper end of the first shell, a first extension section arranged at the lower end of the first support portion and extending downward, a first connecting column arranged at the lower end of the first extension section and extending downward and capable of being embedded in the first positioning hole, and a first negative electrode column body wrapped around the outer periphery of the first connecting column, the first sealing rubber ring is sleeved around the outer periphery of the first extension section, and the first diaphragm layer is wrapped around the outer periphery of the first negative electrode column body, and the negative electrode lead wire is connected with the top surface of the first support portion.

[0020] Further, the first sealing rubber ring comprises a first main body section which can be embedded in the first accommodating cavity, and a first limiting section arranged at the upper end of the first main body section and capable of being supported on the upper end of the first accommodating cavity, and the bottom surface of the first support portion is in contact with the top surface of the first limiting section.

[0021] Further, the diameter of the first connecting column is smaller than the diameter of the first extension section.

[0022] From the above description of the present application, compared with the prior art, the beneficial effects of the present application are: by limiting the structure of the electric energy storage fabric, the micro capacitor is cooperated with the positive electrode lead wire and the negative electrode lead wire to form the energy storage fiber, so that the prepared fabric can be combined with small photovoltaic panels and other outdoor green energy uses, further improving the application range of the micro capacitor and effectively improving its compatibility; and the copper wire and the micro capacitor in the energy storage unit are used as the attachment of the coagulation chemical fiber, and the problem of easy wire drawing of the coagulation chemical fiber during wet spinning is solved, and the yield of the energy storage fiber is improved.

[0023] The micro capacitor is connected in parallel through thin copper wires, and then wet spinning is used to prepare energy storage fibers, which are then woven with chemical fibers to form a fabric, so that the micro capacitor can be applied to energy storage functions of wearable life items such as clothes. This way of sealing the shell and covering the chemical fibers by wet spinning makes the micro capacitor not be eroded by sweat, rainwater, dust and other impurities, improving the reliability and service life of the micro capacitor. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of an energy storage fabric;

[0025] Figure 2 This is a schematic diagram of the structure of an energy storage fiber;

[0026] Figure 3 This is a schematic diagram of the energy storage unit.

[0027] Figure 4 This is a schematic diagram of the structure of a miniature capacitor;

[0028] Figure 5 This is a cross-sectional view of the structure of a miniature capacitor;

[0029] Figure 6 This is an exploded view of a miniature capacitor.

[0030] Figure 7 This is a flowchart illustrating the preparation process of energy storage fibers.

[0031] Figure 8 for Figure 7 A partial structural diagram;

[0032] Figure 9 This is a flowchart illustrating the fabrication process of a microcapacitor.

[0033] In the figure, 1-energy storage fiber, 2-first fiber, 3-second fiber, 4-welding position, 5-welding head, 6-coagulation tank, 7-spinning device, 8-cleaning tank, 9-cleaning nozzle, 10-dyeing device, 11-energy storage unit, 12-fiber layer, 13-micro capacitor, 131-first single unit, 132-first negative electrode unit, 133-first outer shell, 1331-first receiving cavity, 134-first positive electrode, 1341-first positioning hole, 135-first negative electrode, 1351-first support part, 1352 - First extension section, 1353- First connecting post, 1354- First negative electrode post, 136- First diaphragm layer, 137- First sealing rubber ring, 1371- First main body section, 1372- First limiting section, 138- Positive electrode rolling device, 1381- Fixed post, 1382- Rolling and shaping post, 1383- Moving cavity, 1384- Shaping part, 14- Positive electrode wire, 15- Negative electrode wire, 61- Guide roller, 71- Liquid storage tank, 72- Conveying pipe, 73- Conveying pump, 74- Filtering device, 75- Spinneret. Detailed Implementation

[0034] The present invention will be further described below through specific embodiments.

[0035] Reference Figures 1 to 3As shown, an energy storage fabric based on micro-capacitors can be combined with small photovoltaic panels for outdoor green energy storage, which is made of energy storage fibers 1 and first fibers 2 alternately spaced as weft, and second fibers 3 as warp.

[0036] The energy storage fiber 1 includes an energy storage unit 11 and a fiber layer 12 wrapped around the outer periphery of the energy storage unit 11, wherein the energy storage unit 11 includes a plurality of micro-capacitors 13 arranged at intervals, a positive electrode lead 14 connected to the positive electrode end surface of the plurality of micro-capacitors 13, and a negative electrode lead 15 connected to the negative electrode end surface of the plurality of micro-capacitors 13, wherein the second fiber 3 is located between two adjacent micro-capacitors 13, and specifically, the fiber layer 12 is a chemical fiber layer; further, the positive electrode lead 14 and the negative electrode lead 15 are both copper wires.

[0037] Referring to Figures 7 to 8 As shown, the preparation method includes the following steps:

[0038] Step 1, the micro-capacitor 1 is transferred to the welding position 4, then the positive electrode lead 14 and the negative electrode lead 15 are respectively drawn to the welding position 4, and the positive electrode lead 14 and the negative electrode lead 15 are respectively welded to the positive electrode end surface and the negative electrode end surface of the micro-capacitor 13 through the welding head 5, forming the energy storage unit 11;

[0039] Step 2, the energy storage unit 11 is transferred to the coagulation tank 6, the spinning dope is extruded from the spinneret 75 to coat the energy storage unit 11, and the spinning dope is contacted with the coagulation liquid in the coagulation tank 6, so that the solvent in the spinning dope is dispersed into the coagulation tank 6, and the fiber layer 12 is coagulated;

[0040] Step 3, then the energy storage unit 11 coated with the fiber layer 12 is transferred to above the cleaning tank 8, and is washed by the cleaning nozzle 9, then the energy storage unit 11 coated with the fiber layer 12 after cleaning is transferred to the dyeing device 10 for dyeing, and then dried by the drying device to form the energy storage fiber 1;

[0041] Step 4, the same material spinning dope is sent into the spinning equipment to respectively prepare the first fiber 2 and the second fiber 3;

[0042] Step 5, the energy storage fiber 1 and the first fiber 2 are alternately spaced as weft, and the second fiber 3 is woven as warp to form the energy storage fabric.

[0043] In step 1, the micro capacitor 1 is conveyed to the welding position 4 via a conveyor belt. The positive electrode wire 14 and the negative electrode wire 15 are wound onto the positive electrode spool and the negative electrode spool, respectively. Specifically, the positive electrode spool and the negative electrode spool are positioned above the conveyor belt. The conveying direction of the positive electrode wire 14 and the negative electrode wire 15 is perpendicular to the conveying direction of the micro capacitor 13. The perpendicular intersection forms the welding position 4.

[0044] In step 2, the spinning solution is extruded by the spinneret 7 and coated onto the energy storage unit 11. The spinneret 7 includes a storage tank 71 for storing the spinning solution, a delivery pipe 72 connected to the storage tank 71 and extending downward into the coagulation tank 6, a delivery pump 73 mounted on the delivery pipe 72, a filter device 74 mounted on the delivery pipe 72 below the delivery pump 73, and a spinneret 75 located at the lower end of the delivery pipe 72. Specifically, two guide rollers 61 are spaced apart in the coagulation tank 6. The energy storage unit 11, welded at the welding position 4 by the welding head 5, moves within the coagulation tank 6 under the action of the two guide rollers 61. The spinneret 75 is positioned between the two guide rollers 61 and on the energy storage unit 11. The outlet width is slightly larger than the distance between the positive electrode wire 14 and the negative electrode wire 15 to ensure that the spinning solution can cover the energy storage unit 11 and solidify to form a fiber layer 12. Furthermore, the spinning solution is formed after being dissolved in a solvent, which is one of dichloroethane, tetrachloroethane, chlorobenzene, cyclohexanone, tetrahydrofuran, dimethylformamide, white oil, paraffin oil, and kerosene. The coagulation liquid in the coagulation tank 6 is one of inorganic salt solution, alcohol solution, and polymer solution, and the specific selection can be determined according to the properties of the spinning solution. The composition of the chemical fiber and the process of preparing the spinning solution can be referred to the prior art. Since this application does not focus on this, it will not be described in detail.

[0045] By defining the preparation method of the energy storage fabric, the copper wire and micro capacitor 13 in the energy storage unit 11 are used as the attachment support for the solidified chemical fiber, which improves the problem of the solidified chemical fiber being prone to threading during wet spinning.

[0046] Additionally, refer to Figures 4 to 6 As shown, the miniature capacitor 13 includes a first single cell unit 131 and a first negative terminal unit 132 connected to the first single cell unit 131.

[0047] The first single unit 131 includes a first outer shell 133 having a first receiving cavity 1331 inside and a first positive terminal 134 disposed in the first receiving cavity 1331. Specifically, the outer wall of the first positive terminal 134 is attached to the inner wall of the first receiving cavity 1331.

[0048] The first negative pole column unit 132 comprises a first negative pole 135 which can be embedded in the first positive pole 134, a first diaphragm layer 136 which is wrapped around the outer circumferential surface of the first negative pole 135, and a first sealing rubber ring 137 which is sleeved on the upper end of the first negative pole 135 for sealing the first accommodating cavity 1331. Correspondingly, the first positive pole 134 is internally formed with a first positioning hole 1341 for embedding the first negative pole 135. Specifically, the height of the first diaphragm layer 136 is consistent with the height of the first positive pole 134.

[0049] The first negative pole 135 comprises a first support part 1351 which can be supported on the upper end of the first shell 133, a first extension segment 1352 which is arranged at the lower end of the first support part 1351 and extends downward, a first connecting column 1353 which is arranged at the lower end of the first extension segment 1352 and extends downward and can be embedded in the first positioning hole 1341, and a first negative electrode column body 1354 which is wrapped around the outer circumferential surface of the first connecting column 1353. The first sealing rubber ring 137 is sleeved around the outer circumferential surface of the first extension segment 1352, and the first diaphragm layer 136 is wrapped around the outer circumferential surface of the first negative electrode column body 1354. Specifically, the diameter of the first connecting column 1353 is smaller than the diameter of the first extension segment 1352. Further, the first support part 1351, the first extension segment 1352 and the first connecting column 1353 are integrally formed.

[0050] The first sealing rubber ring 137 comprises a first main body segment 1371 which can be embedded in the first accommodating cavity 1331, and a first limiting segment 1372 which is arranged at the upper end of the first main body segment 1371 and can be supported on the upper end of the first accommodating cavity 1331. When the first sealing rubber ring 137 is installed, the bottom surface of the first support part 1351 is in contact with the top surface of the first limiting segment 1372. Specifically, after the first sealing rubber ring 137 is installed, the bottom surface of the first main body segment 1371 is at a certain distance from the top surface of the first diaphragm layer 136 or the first positive pole 134, so that a space is left between the first sealing rubber ring 137 and the first diaphragm layer 136 and the first positive pole 134 after the first sealing rubber ring 137 is installed. This space makes the internal air pressure of the capacitor more stable, and avoids the decrease in electrical performance caused by the increase in internal air pressure of the capacitor due to the gas produced by the decomposition of electrolyte.

[0051] Referring to Figure 9 The preparation process thereof specifically comprises the following steps:

[0052] In step one, the first connecting column 1353 is inserted into the negative electrode slurry, the negative electrode slurry is adhered to the first connecting column 1353, and after rotation, drying and rolling, the negative electrode slurry is firmly adhered to the outer circumferential surface of the first connecting column 1353 to form a first negative electrode main body 1354, thereby obtaining the first negative pole 135.

[0053] Step two, insert the first negative pole 135 into the prepared cellulose pulp, so that the cellulose pulp is evenly adhered to the surface of the first negative pole 135, and dried and shaped to form the first diaphragm layer 136, then fix the first sealing rubber ring 137 on the upper end of the first negative pole 135, get the first negative pole unit 132;

[0054] Step three, lay the first shell 133, plug the first containing cavity 1331 with the plug formed with a through hole inside, then use the syringe to inject the positive electrode slurry into the first containing cavity 1331, rotate the first shell 133 around its axis at a limited temperature, use the centrifugal effect to make the positive electrode slurry evenly coated on the inner wall of the first containing cavity 1331 and adhere and shape, remove the plug, use the positive electrode rolling device 138 to roll and shape the positive electrode slurry, so that the first containing cavity 1331 is shaped into the first positive pole 134, get the first monomer unit 131;

[0055] Step four, inject the electrolyte into the first shell 133, then insert the first negative pole 135 of the first negative pole unit 132 into the first positioning hole 1341 of the first positive pole 134, the first sealing rubber ring 137 is clamped with the inner wall of the first containing cavity 1331, get the above-mentioned micro capacitor.

[0056] Among them, the negative electrode slurry, cellulose pulp, and positive electrode slurry are common components in the field of supercapacitor preparation, and since they are not the invention points of the present application, the raw material composition of their components will not be further described, and the specific parameters of their corresponding drying and shaping processes also refer to the existing process; Specifically, the thickness of the negative electrode pole and the positive electrode pole determines the size of the micro capacitor, the flowability of the electrode slurry can be adjusted by adjusting the solid content of the electrode slurry to increase or decrease the flowability, so as to adjust the thickness of the positive electrode and the negative electrode after shaping, when the flowability is high, the thickness of the electrode pole attached to the inner wall of the connecting pole and the containing cavity is thinner, and the size of the capacitor can be made smaller, wherein the thinnest electrode pole can reach the nanometer level of the raw material particles, and the diameter of the capacitor can reach 100um or less.

[0057] The positive electrode rolling device 138 includes a fixed column 1381 that can be docked with the first shell 133 and a rolling and shaping column 1382 movably arranged in the fixed column 1381, wherein the fixed column 1381 is formed with a moving cavity 1383 for the rolling and shaping column 1382 to move back and forth, the front end of the rolling and shaping column 1382 is formed with a shaping part 1384, and the diameter of the shaping part 1384 is the same as the diameter of the first positioning hole 1341; Specifically, when the first positive pole 134 is prepared, the fixed column is docked with the first shell 133, the rolling and shaping column 1382 moves in the direction close to the positive electrode slurry so that the shaping part 1384 extends into the positive electrode slurry, and through the repeated back and forth movement of the rolling and shaping column 1382, the positive electrode slurry is solidified and shaped in the first containing cavity 1331, and the first positive pole 134 is obtained.

[0058] By limiting the structure design of the micro capacitor 13, the coating process, slitting, punching, winding or patching process after batching in the prior art super capacitor preparation process is simplified, the electrode material is directly coated on the surface of the negative electrode column and the inner wall of the housing cavity, a large number of process and working hours are saved, at the same time, conductive gel, aluminum foil, copper foil, adapter sheet and other materials are no longer used, but the electrode column and the shell are directly used as the current collector, through the unique electrode material coating, rolling and rolling method, the contact between the electrode material and the current collector is more compact, the material is uniform, the structure is firm, the process is simple, and the internal resistance of the capacitor is greatly reduced; wherein, because the positive electrode is at high potential, it is more prone to chemical side reactions, which accelerates material aging, so the positive electrode slurry is coated on the inner wall of the larger housing, the positive electrode column and the negative electrode column are wrapped in a scattering manner, more material aging and loss space is reserved for the positive electrode column, which greatly improves the service life of the capacitor, at the same time, the structure is simplified, and the micro capacitor with sealed electrolyte can be easily prepared, the solid and liquid selection of the micro capacitor is realized, the internal series type super capacitor is more convenient, and the use voltage of the super capacitor is improved.

[0059] The application limits the structure of the electric energy storage fabric, and the micro capacitor 13 and the positive electrode wire 14 and the negative electrode wire 15 cooperate to form the energy storage fiber 1, so that the prepared fabric can be combined with small photovoltaic panels and other outdoor green energy sources, further improving the application range of the micro capacitor and effectively improving its compatibility; and the copper wire and the micro capacitor 13 in the energy storage unit 11 are used as the attachment of the solidified chemical fiber, and the problem of easy wire drawing of the solidified chemical fiber during wet spinning is improved, and the yield of the energy storage fiber is improved.

[0060] The above is only a preferred embodiment of the application, and therefore cannot limit the scope of the application, that is, equivalent changes and modifications made according to the scope of the application and the content of the specification should still be within the scope of the application.

Claims

1. A process for the preparation of an electrical energy storage fabric, characterized in that: The electric energy storage fabric is knitted by energy storage fibers and first fibers as weft and second fibers as warp, the energy storage fiber comprises an energy storage unit and a fiber layer wrapped around the energy storage unit, the energy storage unit comprises a plurality of micro capacitors arranged at intervals, a positive electrode wire connected to the positive electrode end surface of the plurality of micro capacitors and a negative electrode wire connected to the negative electrode end surface of the plurality of micro capacitors. The preparation process comprises the following steps: Step 1, the micro capacitor is transferred to the welding position, then the positive electrode wire and the negative electrode wire are respectively drawn to the welding position, and the positive electrode wire and the negative electrode wire are respectively welded on the positive electrode end surface and the negative electrode end surface of the micro capacitor through the welding head, to form an energy storage unit; Step 2, the energy storage unit is transferred to the coagulation tank, the spinning dope is extruded from the spinneret to coat the energy storage unit, and the spinning dope is contacted with the coagulation liquid in the coagulation tank, so that the solvent in the spinning dope is dispersed into the coagulation tank, and the fiber layer is coagulated; Step 3, then the energy storage unit coated with the fiber layer is transferred above the cleaning tank, and water washing is performed on the energy storage unit by the cleaning nozzle, then the energy storage unit coated with the fiber layer after cleaning is transferred to the dyeing device for dyeing, and then dried by the drying device to form the energy storage fiber; Step 4, the same material spinning dope is sent into the spinning equipment to respectively prepare the first fiber and the second fiber; Step 5, the energy storage fiber and the first fiber are alternately arranged as weft, and the second fiber is arranged as warp to knit the electric energy storage fabric; The micro capacitor comprises a first monomer unit and a first negative electrode column unit connected to the first monomer unit, the first monomer unit comprises a first shell with a first containing cavity formed inside and a first positive electrode column arranged in the first containing cavity, and the outer wall of the first positive electrode column is attached to the inner wall of the first containing cavity; the first negative electrode column unit comprises a first negative electrode column which can be embedded in the first positive electrode column, a first diaphragm layer wrapped around the outer surface of the first negative electrode column, and a first sealing rubber ring sleeved on the upper end of the first negative electrode column for sealing the first containing cavity, the first positive electrode column has a first positioning hole formed inside for embedding the first negative electrode column, and the top surface of the first negative electrode column forms a negative electrode end surface connected to the negative electrode wire, and the bottom surface of the first shell forms a positive electrode end surface connected to the positive electrode wire.

2. A process for the preparation of an electrical energy storage fabric according to claim 1, characterized in that: The micro capacitor is transferred to the welding position by a conveying belt, the positive electrode wire and the negative electrode wire are respectively wound on the positive electrode winding drum and the negative electrode winding drum, the positive electrode winding drum and the negative electrode winding drum are arranged above the conveying belt, the conveying direction of the positive electrode wire and the negative electrode wire is perpendicular to the conveying direction of the micro capacitor, and the perpendicular intersection forms the welding position.

3. A process for the preparation of an electrical energy storage fabric according to claim 1, characterized in that: The spinning dope is formed by dissolving a chemical fiber with a solvent, and the solvent is one of dichloroethane, tetrachloroethane, chlorobenzene, cyclohexanone, tetrahydrofuran, dimethylformamide, white oil, paraffin oil and kerosene.

4. A process for the preparation of an electrical energy storage fabric according to claim 1, characterized in that: The coagulation liquid is one of inorganic salt solution, alcohol solution and high polymer solution.

5. A process for the preparation of an electrical energy storage fabric according to claim 1, characterized in that: The second fiber is arranged between two adjacent micro capacitors.

6. A process for the preparation of an electrical energy storage fabric according to claim 1, characterized in that: The positive electrode wire and the negative electrode wire are both copper wires.

7. A process for the preparation of an electrical energy storage fabric according to claim 1, characterized in that: The first negative pole post comprises a first support part which can be supported on the upper end of the first shell, a first extension section which is arranged on the lower end of the first support part and extends downward, a first connecting post which is arranged on the lower end of the first extension section and extends downward and can be embedded in the first positioning hole, and a first negative electrode post body which is wrapped around the outer periphery of the first connecting post, the first sealing rubber ring is arranged around the outer periphery of the first extension section, the first diaphragm layer is wrapped around the outer periphery of the first negative electrode post body, and the negative electrode lead wire is connected with the top surface of the first support part.

8. A process for the preparation of an electrical energy storage fabric according to claim 7, characterized in that: The first sealing rubber ring comprises a first main body section which can be embedded in the first accommodating cavity and a first limiting section which is arranged on the upper end of the first main body section and can be supported on the upper end of the first accommodating cavity, and the bottom surface of the first support part is in contact with the top surface of the first limiting section.

9. A process for the preparation of an electrical energy storage fabric according to claim 7, characterized in that: The diameter of the first connecting post is smaller than the diameter of the first extension section.

Citation Information

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