CN115566134A - Structural energy storage integrated composite material and preparation method thereof - Google Patents
Structural energy storage integrated composite material and preparation method thereof Download PDFInfo
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- CN115566134A CN115566134A CN202211545130.4A CN202211545130A CN115566134A CN 115566134 A CN115566134 A CN 115566134A CN 202211545130 A CN202211545130 A CN 202211545130A CN 115566134 A CN115566134 A CN 115566134A
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- 239000002131 composite material Substances 0.000 title claims abstract description 56
- 238000004146 energy storage Methods 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 35
- 239000011530 conductive current collector Substances 0.000 claims abstract description 29
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- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
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- 239000005518 polymer electrolyte Substances 0.000 claims description 4
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- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- 229910000572 Lithium Nickel Cobalt Manganese Oxide (NCM) Inorganic materials 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
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- 239000004793 Polystyrene Substances 0.000 claims description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 2
- FBDMTTNVIIVBKI-UHFFFAOYSA-N [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] Chemical compound [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] FBDMTTNVIIVBKI-UHFFFAOYSA-N 0.000 claims description 2
- 239000003575 carbonaceous material Substances 0.000 claims description 2
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000007849 furan resin Substances 0.000 claims description 2
- 229910003480 inorganic solid Inorganic materials 0.000 claims description 2
- DCYOBGZUOMKFPA-UHFFFAOYSA-N iron(2+);iron(3+);octadecacyanide Chemical compound [Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] DCYOBGZUOMKFPA-UHFFFAOYSA-N 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
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- 229960003351 prussian blue Drugs 0.000 claims description 2
- 239000013225 prussian blue Substances 0.000 claims description 2
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- 230000010354 integration Effects 0.000 claims 1
- 238000004806 packaging method and process Methods 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 26
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- 239000000835 fiber Substances 0.000 description 10
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- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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- 238000007650 screen-printing Methods 0.000 description 2
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- 238000010146 3D printing Methods 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 229910013075 LiBF Inorganic materials 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
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- 238000012983 electrochemical energy storage Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/15—Solid electrolytic capacitors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0407—Methods of deposition of the material by coating on an electrolyte layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/44—Fibrous material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a structural energy storage integrated composite material and a preparation method thereof, wherein the structural energy storage integrated composite material comprises conductive current collectors, a bearing area and an energy storage area are arranged between the conductive current collectors, and the bearing area is coated outside the energy storage area; the energy storage area comprises an active substance layer and a diaphragm coated on the conductive current collectors, the diaphragm is positioned between the conductive current collectors, and a solid electrolyte matched with the active substance layer is coated on the diaphragm; the bearing area is insulating resin filled between the diaphragm and the conductive current collector. By adopting the energy storage integrated composite material with the structure and the preparation method thereof, additional packaging is not needed, the bearing area and the energy storage area are arranged in the electrode surface, and the structure and the overall weight of the composite material are simplified.
Description
Technical Field
The invention relates to the technical field of energy storage composite materials, in particular to a structural energy storage integrated composite material and a preparation method thereof.
Background
The structural material functionalization and the functional material structurization are development trends of future composite materials, the light-structure energy storage multifunctional integrated composite material has the functions of structure bearing and energy storage, can meet the requirements of advanced equipment on materials in the development processes of lightweight, electromotion and intellectualization, and has wide application prospects in the fields of automobiles, robots, wind power, military industry, aerospace and the like.
CN113036268A discloses a lithium metal structure battery, which is a lithium metal structure battery with structural support and electrochemical energy storage functions, and is composed of a structural cathode, a structural electrolyte, a lithium metal anode, a tab and a fiber/epoxy composite material packaging material. The packaging material is made of fiber/epoxy composite materials, and the battery is packaged by using a traditional composite material forming technology. The disadvantage of this patent is that additional fiber/epoxy is required for encapsulation, increasing the overall weight of the composite.
Disclosure of Invention
The invention aims to provide a structural energy storage integrated composite material and a preparation method thereof, which do not need additional packaging, have a bearing area and an energy storage area in an electrode surface and simplify the structure and the whole weight of the composite material.
In order to achieve the purpose, the invention provides a structural energy storage integrated composite material which comprises conductive current collectors, wherein a bearing area and an energy storage area are arranged between the conductive current collectors, and the bearing area is coated outside the energy storage area; the energy storage area comprises an active substance layer and a diaphragm coated on the conductive current collectors, the diaphragm is positioned between the conductive current collectors, and a solid electrolyte matched with the active substance layer is coated on the diaphragm; the bearing area is insulating resin filled between the diaphragm and the conductive current collector.
Preferably, the conductive current collector is a conductive material with one or more one-dimensional, two-dimensional or three-dimensional structures in metal or conductive non-metal materials; including but not limited to one or more of aluminum, copper, nickel and carbon based conductive materials with one-dimensional, two-dimensional or three-dimensional structure, such as aluminum wire, aluminum mesh, aluminum foil, aluminum plate, or carbon nanotube and carbon fiber, carbon felt, carbon paper, carbon fiber cord fabric, non-woven fabric and woven fabric.
Preferably, the active material layer on one of the conductive current collectors is a positive electrode material, and the active material layer on the other conductive current collector is a negative electrode material.
Preferably, the positive electrode material is one of lithium iron phosphate, lithium manganate, lithium cobaltate, lithium nickel cobalt manganese oxide, activated carbon, a graphite material, and an oxide type, prussian blue type and polyanion type sodium ion material.
Preferably, the anode material is a carbon-based material.
Preferably, the diaphragm is glass fiber cloth, aramid fiber cloth or non-woven nylon cloth.
Preferably, the solid electrolyte is an inorganic solid electrolyte, a solid polymer electrolyte or a composite polymer electrolyte.
Preferably, the matrix-filling insulating resin is a thermoplastic resin or a thermosetting resin; the thermoplastic resin is one or a mixture of more of polyethylene, polypropylene, ethylene-vinyl acetate resin, polyvinyl chloride, polystyrene, polyamide, polyformaldehyde, polycarbonate, polyphenyl ether and polysulfone; the thermosetting resin is one or a mixture of more of epoxy resin, phenolic resin, polyester resin and furan resin, and the curing temperature is 25-150 ℃.
The preparation method of the structure energy storage integrated composite material comprises the following steps:
the method comprises the following steps of S1, cutting a conductive current collector into two pieces, respectively coating active substances on two pieces of conductive current collectors of a positive electrode material and a negative electrode material in a coating area controllable mode in a selected area to form active substance layers, and drying to obtain a positive electrode and a negative electrode; the coating area controllable mode is manual scraper coating, screen printing, a glue dispenser or 3D printing; coating active substance slurry on the surface of the conductive current collector to prepare an active substance layer area with a required area and shape;
s2, preparing solid electrolyte slurry, coating the solid electrolyte slurry on the diaphragm, and drying to form a solid electrolyte layer, wherein the shape and the area of the solid electrolyte layer are the same as those of the active material layer;
and S3, laying the anode, the diaphragm and the cathode in a laminated manner to enable the active material layer to be aligned with the solid electrolyte layer, filling matrix insulating resin in a vacuum filling device in a vacuum manner, and curing under vacuum pressure to obtain the structural energy storage integrated composite material.
Preferably, in the S3, the curing temperature is 25-100 ℃.
The structure energy storage integrated composite material and the preparation method thereof have the advantages and positive effects that:
1. according to the invention, the active substance layer is coated on the conductive current collector in a controllable coating mode, so that the positive electrode and the negative electrode with designable shapes are formed on the conductive current collector.
2. The bearing area is wrapped outside the energy storage area, the bearing area and the energy storage area are arranged in the electrode surface, the solid electrolyte provides an ion source, and the insulating resin is used as a filling matrix to provide support, so that the high-strength solid electrolyte has high strength.
3. And a bearing area and an energy storage area are arranged in the electrode surface, so that additional packaging is not needed, and the structure and the whole weight of the composite material are simplified.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a structural energy storage integrated composite material and a preparation method thereof according to the present invention;
FIG. 2 is a schematic diagram of a structure of a carbon nanotube fiber cloth electrode according to an embodiment of the invention and a method for preparing the same;
FIG. 3 is a schematic structural view of a solid electrolyte composite membrane according to an embodiment 3 of the present invention;
FIG. 4 is a schematic structural view of a composite material in embodiment 3 of the structural energy storage integrated composite material and a method for preparing the same according to the present invention;
fig. 5 is a structural capacitor cycle charge-discharge curve prepared from the composite material in embodiment 3 of the structural energy storage integrated composite material and the preparation method thereof.
Reference numerals
1. A conductive current collector; 2. an active material layer; 3. a diaphragm; 4. a solid electrolyte; 5. and filling the matrix.
Detailed Description
The technical scheme of the invention is further explained by the attached drawings and the embodiment.
Example 1
Cutting the carbon felt into two 100 × 100mm squares, respectively coating lithium iron phosphate on the carbon felt by a screen printing process to form an anode in a 40 × 40mm area, and coating activated carbon and the carbon felt to form a cathode; drying for 16h at 65 ℃.
The solid electrolyte is prepared from polyvinylidene fluoride (PVDF) and lithium hexafluorophosphate (LiPO) 4 F 6 ) And the nano silicon dioxide are fully stirred and mixed in the acetonitrile solution to obtain solid electrolyte slurry.
Cutting 110 × 110mm non-woven nylon cloth as a diaphragm, coating the solid electrolyte slurry in a 40 × 40mm area of the non-woven nylon cloth by a dispenser, and drying for 24h at 60 ℃.
And (3) laying a carbon felt positive electrode, a solid electrolyte non-woven nylon cloth composite membrane and a carbon felt negative electrode in a stacking manner, vacuum-infusing epoxy resin in a vacuum infusion device, and curing at 60 ℃ to obtain the structural energy storage integrated composite material.
Example 2
Cutting the aluminum foil into two 100X 100mm squares, respectively coating activated carbon on the aluminum foil by a manual blade coating mode in an area of 30X 30mm to form a positive electrode, coating the activated carbon on the aluminum foil to form a negative electrode, and drying for 24h at the temperature of 60 ℃.
The solid electrolyte is prepared from polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP), lithium tetrafluoroborate (LiBF) 4 ) Fully stirring and mixing in an acetonitrile solution to obtain solid electrolyte slurry;
cutting 110X 110mm aramid fiber cloth as a diaphragm, coating the solid electrolyte slurry in a 30X 30mm area of the aramid fiber cloth by a dispenser, and drying for 24h at 50 ℃.
And (3) laying an aluminum foil anode, a solid electrolyte aramid fiber cloth composite membrane and an aluminum foil cathode in a laminating manner, vacuum-filling epoxy resin in a vacuum filling device, and curing at 80 ℃ to obtain the structural energy storage integrated composite material.
Example 3
Cutting the carbon nanotube fiber cloth into two blocks of 100 × 100mm, respectively printing and coating graphite with a designed structure on the carbon nanotube fiber cloth by using a 3D printer to form a positive electrode in a 20 × 60mm area, coating the graphite on the carbon nanotube fiber cloth to form a negative electrode, and drying for 12h at 80 ℃.
The solid electrolyte is prepared from polyethylene oxide (PEO), and lithium hexafluorophosphate (LiPO) 4 F 6 ) Fully stirring and mixing in acetonitrile solution to obtain solid electrolyte slurry.
Cutting 110 × 110mm glass fiber cloth as a diaphragm, coating the solid electrolyte slurry in a region of 20 × 60mm of the glass fiber cloth by using a dispenser, and drying for 12h at 60 ℃.
And (3) laying the carbon nanotube fiber cloth positive electrode, the solid electrolyte glass fiber cloth composite membrane and the carbon nanotube fiber cloth negative electrode in a laminating manner, vacuum-filling epoxy resin in a vacuum filling device, and curing at 100 ℃ to obtain the structural energy storage integrated composite material.
Fig. 2 is a schematic diagram of a structure of a carbon nanotube fiber cloth electrode according to an embodiment of a structure and energy storage integrated composite material and a preparation method thereof according to the present invention 3, fig. 3 is a schematic diagram of a structure of a solid electrolyte composite membrane according to an embodiment of a structure and energy storage integrated composite material and a preparation method thereof according to the present invention 3, and fig. 4 is a schematic diagram of a structure and energy storage integrated composite material according to an embodiment of a structure and energy storage integrated composite material and a preparation method thereof according to the present invention 3. As shown in the drawing, the positive electrode and the negative electrode obtained by coating with the active material may be designed in any shape as needed. The shape of the positive electrode and the shape and size of the negative electrode are the same as those of the solid electrolyte, the positive electrode and the negative electrode are combined to form an energy storage area, and an area outside the energy storage area is filled with insulating resin to form a bearing area, so that the bearing area is favorable for improving the strength of the composite material.
Fig. 5 is a structural energy storage integrated composite material and a preparation method thereof according to the present invention, and a structural capacitor prepared from the composite material in example 3 is a cyclic charge-discharge curve. The cyclic charge and discharge curve is similar to an isosceles triangle, and the pressure drop is small, which reflects that the internal resistance is small, thus the designed structure energy storage integrated composite material has good charge and discharge cycle and outstanding electrochemical performance.
Therefore, the energy storage integrated composite material with the structure and the preparation method thereof do not need additional packaging, and the bearing area and the energy storage area are arranged in the electrode surface, so that the structure and the overall weight of the composite material are simplified.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the disclosed embodiments without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a structure energy storage integration combined material which characterized in that: the energy storage device comprises conductive current collectors, wherein a bearing area and an energy storage area are arranged between the conductive current collectors, and the bearing area is coated outside the energy storage area; the energy storage area comprises an active substance layer and a diaphragm coated on the conductive current collectors, the diaphragm is positioned between the conductive current collectors, and the diaphragm is coated with a solid electrolyte matched with the active substance layer; the bearing area is insulating resin filled between the diaphragm and the conductive current collector.
2. A structural energy storage integrated composite material as claimed in claim 1, wherein: the conductive current collector is a conductive material with one or more of a metal or a conductive non-metal material and a one-dimensional, two-dimensional or three-dimensional structure.
3. A structural energy storage integrated composite material as claimed in claim 2, wherein: and the active material layer on one conductive current collector is a positive electrode material, and the active material layer on the other conductive current collector is a negative electrode material.
4. A structural energy storage integrated composite material as claimed in claim 3, wherein: the positive electrode material is one of lithium iron phosphate, lithium manganate, lithium cobaltate, lithium nickel cobalt manganese oxide materials, oxides, prussian blue and polyanion sodium ion materials.
5. A structural energy storage integrated composite material according to claim 4, wherein: the negative electrode material is a carbon-based material.
6. A structural energy storage integrated composite material according to claim 5, wherein: the diaphragm is made of glass fiber cloth, aramid fiber cloth or non-woven nylon cloth.
7. A structural energy storage integrated composite material according to claim 6, wherein: the solid electrolyte is an inorganic solid electrolyte, a solid polymer electrolyte or a composite polymer electrolyte.
8. A structural energy storage integrated composite material according to claim 7, wherein: the insulating resin for filling the matrix is thermoplastic resin or thermosetting resin; the thermoplastic resin is one or a mixture of more of polyethylene, polypropylene, ethylene-vinyl acetate resin, polyvinyl chloride, polystyrene, polyamide, polyformaldehyde, polycarbonate, polyphenyl ether and polysulfone; the thermosetting resin is one or a mixture of more of epoxy resin, phenolic resin, polyester resin and furan resin, and the curing temperature is 25-150 ℃.
9. The preparation method of the structural energy storage integrated composite material as claimed in claim 8, characterized by comprising the following steps:
the method comprises the following steps of S1, cutting a conductive current collector into two pieces, respectively coating active substances on the two pieces of conductive current collectors made of positive electrode materials and negative electrode materials in a coating area controllable mode in a selected area to form active substance layers, and drying to obtain a positive electrode and a negative electrode;
s2, preparing solid electrolyte slurry, coating the solid electrolyte slurry on the diaphragm, and drying to form a solid electrolyte layer, wherein the shape and the area of the solid electrolyte layer are the same as those of the active material layer;
and S3, laying the anode, the diaphragm and the cathode in a laminated manner to enable the active material layer to be aligned with the solid electrolyte layer, filling matrix insulating resin in a vacuum filling device in a vacuum manner, and curing under vacuum pressure to obtain the structural energy storage integrated composite material.
10. The method for preparing the structural energy storage integrated composite material according to claim 9, wherein the method comprises the following steps: in S3, the curing temperature is 25-100 ℃.
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