Long-time fireproof thermal insulation material for energy storage cabinet and preparation method and application of long-time fireproof thermal insulation material

Abstract

The invention discloses a long-time fireproof and heat-insulating material for an energy storage cabinet. The long-time fireproof and heat-insulating material is characterized by comprising a mica packaging tape and a fireproof and heat-insulating coating, the fire-resistant heat-insulating coating is uniformly coated on the mica packaging tape, and the fire-resistant heat-insulating coating is prepared from the following raw materials in parts by weight: 20 to 50 parts of ceramizable film forming polymer, 200 to 300 parts of dispersing agent, 1 to 3 parts of defoaming agent, 1 to 5 parts of wetting agent, 30 to 70 parts of temperature-resistant powder, 30 to 80 parts of temperature-resistant fiber and 6 to 120 parts of curing agent; the device can be cut into a proper size according to requirements and flatly laid in the energy storage shell, and after thermal runaway, the device can resist fire for a long time, isolate a heat source and prevent the risk of overflow.

Description

Technical Field

[0001] The present invention relates to the field of fireproof and heat-insulating materials, and in particular to a long-term fireproof and heat-insulating material for an energy storage cabinet, and a preparation method and application thereof. Background Art

[0002] The optimization of power resource allocation is an energy development path promoted by the whole world. In this process, energy storage systems have been widely used. However, since the basic storage unit of the energy storage system is lithium iron phosphate battery, its chemical properties will show different degrees of thermal runaway under certain conditions (overcharge, over-discharge, vibration, short circuit, etc.). Therefore, the frequency of fires caused by thermal runaway of lithium batteries has also increased significantly. After thermal runaway, the energy storage system has the characteristics of long burning time and high temperature, which will bring huge safety hazards to other surrounding energy storage systems, and may cause more energy storage products to experience thermal runaway, thereby affecting public safety and the safety of operation and maintenance personnel, and will also bring huge economic and property losses.

[0003] However, the current structure of energy storage cabinets mainly uses door panels and other surface sealing panels with a certain density of thermal insulation rock wool or rock wool sandwich panels filled inside. In an environment where thermal runaway reaches over 1000°C for a long time, the rock wool will catch fire and the box frame structure will be damaged. It will be impossible to suppress the temperature overflow inside the box, nor can it protect the surrounding environment and the safety of the energy storage system. This poses a great risk to the surrounding environment. Summary of the invention

[0004] In order to prevent fire after thermal runaway of the energy storage system from causing secondary damage to the surrounding environment, this case designed and developed a long-term fireproof and heat-insulating material for energy storage cabinets, as well as its preparation method and application, so that the temperature rise caused by thermal runaway can be controlled inside the energy storage cabinet. After being protected by the insulation structure, it will not affect the surrounding energy storage system, and at the same time it will have minimal impact on the surrounding temperature rise.

[0005] The present invention is realized by the following technical scheme: a long-term fireproof and heat-insulating material for energy storage cabinets, characterized in that: it comprises a mica packaging tape and a fire-resistant and heat-insulating coating; the fire-resistant and heat-insulating coating is evenly applied on the mica packaging tape, and the fire-resistant and heat-insulating coating is composed of the following raw materials by weight: 20-50 parts of ceramic film-forming polymer, 200-300 parts of dispersant, 1-3 parts of defoaming agent, 1-5 parts of wetting agent, 30-70 parts of temperature-resistant powder, 30-80 parts of temperature-resistant fiber and 6-120 parts of curing agent;

[0006] The ceramic film-forming polymer is one or more of silicone resin, silicone emulsion and silica sol;

[0007] The particle size of the heat-resistant powder is preferably 100-300 mesh and the specific surface area is 2-8m 2 / g of one or more combinations of white carbon black, silicon dioxide powder, and alumina powder;

[0008] The heat-resistant fiber length is preferably 500-10000 microns and the specific surface area is 2-8m 2 / g of one or more combinations of aluminum silicate fiber, refractory rock wool, and glass fiber.

[0009] Furthermore, the heat-resistant powder and heat-resistant fiber need to undergo the following pretreatment to achieve surface modification before use; the heat-resistant powder and heat-resistant fiber are placed in an oven and dried at 60-70°C for 1-2 hours, and then added to a mixer, and an NP-10 emulsifier aqueous solution with a mass concentration of 8-12% is added while stirring, and after fully mixing, a potassium methyl silicate aqueous solution with a mass concentration of 28-32% is added, and the mixture is stirred and mixed evenly, and the mixture is placed in an oven and dried at 60-120°C.

[0010] Furthermore, the dispersant is NMP / deionized water.

[0011] A method for preparing a long-term fireproof and heat-insulating material for an energy storage cabinet, characterized in that it comprises the following steps:

[0012] S1. Add 200-300 parts of dispersant by weight to the mixing tank, add 20-50 parts of ceramic film-forming polymer solution, 1-3 parts of defoamer, 1-5 parts of wetting agent in sequence under stirring for 15-20 minutes,

[0013] S2. Then add 30-70 parts of heat-resistant powder and 30-80 parts of refractory fiber in sequence, use a mixer to stir at high speed for at least 30 minutes, and ball mill until the fineness of the heat-resistant powder is less than 50 microns, so that the slurry is evenly dispersed; then add 6-120 parts of curing agent, and stir the slurry until it is evenly dispersed to obtain a fire-resistant thermal insulation coating slurry.

[0014] S3. After the refractory heat-insulating coating slurry is evenly applied to the mica packaging tape substrate, a layer of mica packaging tape is covered to seal it; the substrate is then pulled through a continuous oven to cure and dry the coating, and the dried mica packaging tape is rolled up and stored;

[0015] S4. After the roll is transferred to a specific die-cutting device, it is cut to the required size.

[0016] Furthermore, in step S3, any one of gravure printing, transfer coating, and extrusion coating techniques is used to coat the refractory heat-insulating coating slurry at a specific surface loading of 10-10000 g / m 2 , adjustable width 10-100cm evenly coated on 10-100 micron thick continuous mica packaging tape substrate.

[0017] Furthermore, a layer of insulating asbestos is pasted on the fireproof insulation material through a glue layer to obtain a fireproof partition, and a glue layer is also provided on both sides of the fireproof partition. The fireproof partition is flatly pasted between the steel plate one and the steel plate two through the glue layer; the steel plate one and the steel plate two are welded and sealed around with steel bars to form a shell plate for the energy storage cabinet.

[0018] Furthermore, a layer of fireproof insulation material 2 is pasted on the other side of the heat-insulating asbestos of the fireproof partition through a glue layer to form a fireproof partition 2, and a glue layer is provided on both sides of the fireproof partition 2, and then the fireproof partition 2 is flatly pasted between the steel plate 1 and the steel plate 2 through the glue layer; the steel plate 1 and the steel plate 2 are welded and sealed around with steel bars to form a partition for the energy storage cabinet.

[0019] Furthermore, the steel plate 1 is a bent steel plate, the steel plate 2 is a corrugated steel plate, the steel plate 1 is arranged on the inner side of the energy storage box close to the heat source; the steel plate 2 is arranged on the outer side of the energy storage box away from the heat source, and the glue layer is a fire-resistant glue.

[0020] Furthermore, the steel plate 1 and the fireproof and heat-insulating material are reinforced by welding with butt welding studs.

[0021] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0022] 1. The refractory heat-insulating coating of the present invention relies on a ceramic structure that is mainly composed of ionic bonds and covalent bonds; ionic bonds are formed by the electrostatic attraction between positive and negative ions, such as the chemical bonds in aluminum oxide (Al2O3); covalent bonds are formed by sharing electron pairs, such as the chemical bonds in silicon dioxide (SiO2); these chemical bonds give the ceramic structure properties such as high hardness and high melting point.

[0023] 2. The fireproof and heat-insulating material of the present invention adopts a ceramicizable polymer silicone structure design, and the composition of polymer precursor elements and active groups are adjusted according to the proportion range to achieve the optimization of the composition, structure and performance of the converted ceramics; thus, the fireproof and heat-insulating material is obtained, and the fireproof and heat-insulating material can remain amorphous at high temperatures and has outstanding high temperature resistance; the fireproof and heat-insulating material is composed of a mica packaging tape and a fire-resistant and heat-insulating coating, which is convenient for cutting and processing according to needs and is suitable for the manufacture of complex structures.

[0024] 3. The high-energy element-oxygen bonds, such as aluminum-oxygen bonds, silicon-oxygen bonds and other metal-oxygen bonds in the fireproof and heat-insulating layer of the present invention make the molecular structure difficult to destroy, and the thermal stability of the material is improved, and it can withstand high temperatures above 1200°C for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a flow chart of a method for preparing a long-term fireproof and heat-insulating material for an energy storage cabinet of the present invention;

[0027] Figure 2 This is a front view of the application structure of a long-term fireproof and heat-insulating material for an energy storage cabinet of the present invention;

[0028] Figure 3 This is a cross-sectional view of the application structure of a long-term fireproof and heat-insulating material for an energy storage cabinet of the present invention.

[0029] Figure 4 It is a cross-sectional view of the application structure of a long-term fireproof and heat-insulating material for an energy storage cabinet of the present invention.

[0030] 1. Steel plate one; 2. Fireproof and heat-insulating material; 3. Insulating asbestos; 4. Steel plate two; 5. Glue layer; 6. Steel strip; 7. Fireproof and heat-insulating material two. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] like Figure 1-4 As shown, the present invention is further described below in conjunction with specific embodiments.

[0034] Example 1

[0035] A long-term fireproof and heat-insulating material for energy storage cabinets, comprising a mica packaging tape and a fire-resistant and heat-insulating coating; the fire-resistant and heat-insulating coating is evenly applied on the mica packaging tape, and the fire-resistant and heat-insulating coating is composed of the following raw materials by weight: 30 parts of a ceramic film-forming polymer, 200 parts of a dispersant, 1 part of a defoaming agent, 1 part of a wetting agent, 30 parts of aluminum oxide powder and 25 parts of silicon dioxide powder as heat-resistant powder, 40 parts of glass fiber as heat-resistant fiber, and 20 parts of a curing agent; the heat-resistant powder is a mixture of aluminum oxide powder and silicon dioxide, and the mixed powder particle size is preferably 200 mesh and the specific surface area is 5m 2 / g; the heat-resistant fiber is glass fiber, preferably 2000 microns, with a specific surface area of ​​6m 2 / g.

[0036] The heat-resistant powder and heat-resistant fiber need to undergo the following pretreatment to achieve surface modification before use; put the heat-resistant powder and heat-resistant fiber into an oven and dry them at 60-70°C for 1 hour, then add them into a mixer, add an NP-10 emulsifier aqueous solution with a mass concentration of 8-12% while stirring, add a potassium methyl silicate aqueous solution with a mass concentration of 28-32% after fully mixing, stir and mix evenly, put them into an oven, and dry them at 60-120°C; the dispersant is NMP / deionized water.

[0037] A method for preparing a long-term fireproof and heat-insulating material for an energy storage cabinet comprises the following steps:

[0038] S1. Add 200 parts of dispersant by weight to the mixing tank, add 30 parts of ceramic film-forming polymer solution, 1 part of defoamer, and 1 part of wetting agent in sequence under stirring for 20 minutes.

[0039] S2. Then add 55 parts of heat-resistant powder and 40 parts of refractory fiber in sequence, use a mixer to stir at high speed for 40 minutes, and ball mill until the fineness of the heat-resistant powder is less than 50 microns, so that the slurry is evenly dispersed; then add 20 parts of curing agent, and stir the slurry until it is evenly dispersed to obtain a fire-resistant thermal insulation coating slurry.

[0040] S3. After the refractory heat-insulating coating slurry is evenly applied to the mica packaging tape substrate, a layer of mica packaging tape is covered to seal it; the substrate is then pulled through a continuous oven to cure and dry the coating, and the dried mica packaging tape is rolled up and stored;

[0041] S4. After the roll is transferred to a specific die-cutting device, it is cut to the required size.

[0042] Furthermore, in step S3, any one of gravure printing, transfer coating, and extrusion coating techniques is used to coat the refractory heat-insulating coating slurry at a specific surface loading of 10-10000 g / m 2, the width can be adjusted to 10-100cm and is evenly coated on a 10-100 micron thick continuous mica packaging tape substrate, and the thickness of the mica tape is ≥0.15mm.

[0043] The cross-linked network formed in the early stage of the ceramic film-forming polymer of the fireproof and heat-insulating material can retain more elements such as heat-resistant powders and refractory fibers. The retained inorganic elements can form bonds at high temperatures to form amorphous ceramic structures to improve the ceramic yield; and the structure can be designed. According to the target ceramic requirements, the elemental composition and active groups of the polymer precursor can be adjusted to achieve the optimization of the composition, structure and performance of the converted ceramics; the components are uniform, and high-purity ceramics can be obtained through the design of the stoichiometric ratio of the polymer precursor, which can remain amorphous at high temperatures and has outstanding high-temperature resistance; the fireproof and heat-insulating material can select the required mica tape size according to needs, and can also be cut and trimmed according to the construction conditions, with outstanding processing performance.

[0044] Example 2

[0045] A long-term fireproof and heat-insulating material for energy storage cabinets, comprising a mica packaging tape and a fire-resistant and heat-insulating coating; the fire-resistant and heat-insulating coating is evenly applied to the mica packaging tape, and the fire-resistant and heat-insulating coating is composed of the following raw materials by weight: 40 parts of a ceramic film-forming polymer, 250 parts of a dispersant, 1.5 parts of a defoaming agent, 1.5 parts of a wetting agent, 60 parts of a heat-resistant powder, 50 parts of a heat-resistant fiber, and 30 parts of a curing agent; the heat-resistant powder is preferably a 200-mesh aluminum oxide powder with a specific surface area of ​​5m 2 / g; the heat-resistant fiber is glass fiber, preferably 2000 microns, with a specific surface area of ​​6m 2 / g.

[0046] The heat-resistant powder and heat-resistant fiber need to undergo the following pretreatment to achieve surface modification before use; put the heat-resistant powder and heat-resistant fiber into an oven and dry them at 60-70°C for 1 hour, then add them into a mixer, add an NP-10 emulsifier aqueous solution with a mass concentration of 8-12% while stirring, add a potassium methyl silicate aqueous solution with a mass concentration of 28-32% after fully mixing, stir and mix evenly, put them into an oven, and dry them at 60-120°C; the dispersant is NMP / deionized water.

[0047] A method for preparing a long-term fireproof and heat-insulating material for an energy storage cabinet comprises the following steps:

[0048] S1. In parts by weight, add 250 parts of dispersant to the mixing tank, and add 40 parts of ceramic film-forming polymer solution, 1.5 parts of defoamer, and 1.5 parts of wetting agent in sequence under stirring for 20 minutes.

[0049] S2. Then add 60 parts of heat-resistant powder and 50 parts of refractory fiber in sequence, use a mixer to stir at high speed for 40 minutes, and ball mill until the fineness of the heat-resistant powder is less than 50 microns, so that the slurry is evenly dispersed; then add 30 parts of curing agent, and stir the slurry until it is evenly dispersed to obtain a fire-resistant thermal insulation coating slurry.

[0050] S3. After the refractory heat-insulating coating slurry is evenly applied to the mica packaging tape substrate, a layer of mica packaging tape is covered to seal it; the substrate is then pulled through a continuous oven to cure and dry the coating, and the dried mica packaging tape is rolled up and stored;

[0051] S4. After the roll is transferred to a specific die-cutting device, it is cut to the required size.

[0052] Furthermore, in step S3, any one of gravure printing, transfer coating, and extrusion coating techniques is used to coat the refractory heat-insulating coating slurry at a specific surface loading of 10-10000 g / m 2 , the width can be adjusted to 10-100cm and is evenly coated on a 10-100 micron thick continuous mica packaging tape substrate, and the thickness of the mica tape is ≥0.15mm.

[0053] Example 3

[0054] A long-term fireproof and heat-insulating material for energy storage cabinets, comprising a mica packaging tape and a fire-resistant and heat-insulating coating; the fire-resistant and heat-insulating coating is evenly applied to the mica packaging tape, and the fire-resistant and heat-insulating coating is composed of the following raw materials by weight: 40 parts of a ceramic film-forming polymer, 260 parts of a dispersant, 1.5 parts of a defoaming agent, 1.5 parts of a wetting agent, 65 parts of a heat-resistant powder, 55 parts of a heat-resistant fiber, and 35 parts of a curing agent; the heat-resistant powder is aluminum oxide powder with a particle size of preferably 200 mesh and a specific surface area of ​​5m 2 / g; the heat-resistant fiber is aluminum silicate fiber, preferably 2000 microns, with a specific surface area of ​​6m 2 / g.

[0055] The heat-resistant powder and heat-resistant fiber need to undergo the following pretreatment to achieve surface modification before use; put the heat-resistant powder and heat-resistant fiber into an oven and dry them at 60-70°C for 1 hour, then add them into a mixer, add an NP-10 emulsifier aqueous solution with a mass concentration of 8-12% while stirring, add a potassium methyl silicate aqueous solution with a mass concentration of 28-32% after fully mixing, stir and mix evenly, put them into an oven, and dry them at 60-120°C; the dispersant is NMP / deionized water.

[0056] A method for preparing a long-term fireproof and heat-insulating material for an energy storage cabinet comprises the following steps:

[0057] S1. In parts by weight, add 260 parts of dispersant to the mixing tank, add 40 parts of ceramic film-forming polymer solution, 1.5 parts of defoamer, and 1.5 parts of wetting agent in sequence under stirring for 20 minutes,

[0058] S2. Then add 65 parts of heat-resistant powder and 55 parts of refractory fiber in sequence, use a mixer to stir at high speed for 40 minutes, and ball mill until the fineness of the heat-resistant powder is less than 50 microns, so that the slurry is evenly dispersed; then add 35 parts of curing agent, and stir the slurry until it is evenly dispersed to obtain a fire-resistant thermal insulation coating slurry.

[0059] S3. After the refractory heat-insulating coating slurry is evenly applied to the mica packaging tape substrate, a layer of mica packaging tape is covered to seal it; the substrate is then pulled through a continuous oven to cure and dry the coating, and the dried mica packaging tape is rolled up and stored;

[0060] S4. After the roll is transferred to a specific die-cutting device, it is cut to the required size.

[0061] Step S3: Use any one of gravure printing, transfer coating and extrusion coating technology to coat the refractory heat insulation coating slurry at a specific surface load of 10-10000g / m 2 , adjustable width 10-100cm evenly coated on 10-100 micron thick continuous mica packaging tape substrate.

[0062] Example 4

[0063] A layer of insulating asbestos 3 is pasted on the fireproof and heat-insulating material 2 through a glue layer 5 to obtain a fireproof partition. A glue layer 5 is also provided on both sides of the fireproof partition, and the fireproof partition is flatly pasted between the steel plate 1 and the steel plate 2 4 through the glue layer 5; the steel plate 1 and the steel plate 2 4 are welded and sealed around by steel strips 6 to form a shell plate for the energy storage cabinet; the steel plate 1 is made of bent steel plate, and the steel plate 2 4 is made of corrugated steel plate. The steel plate 1 is arranged on the inner side of the energy storage box close to the heat source; the steel plate 2 4 is arranged on the outer side of the energy storage box away from the heat source, and the glue layer 5 is a fire-resistant glue; the steel plate 1 and the fireproof and heat-insulating material 2 are welded and reinforced by butt welding nails.

[0064] Example 5

[0065] A layer of insulating asbestos 3 is pasted on the fireproof insulation material 2 through a glue layer 5 to obtain a fireproof partition, and a layer of fireproof insulation material 2 7 is also pasted on the other side of the insulating asbestos 3 of the fireproof partition through a glue layer 5 to form a fireproof partition 2, and a glue layer 5 is also provided on both sides of the fireproof partition 2; then the fireproof partition 2 is flatly pasted between the steel plate 1 and the steel plate 2 4 through the glue layer 5; the steel plate 1 and the steel plate 2 4 are welded and sealed around by steel strips 6 to form a partition for the energy storage cabinet; the steel plate 1 is made of bent steel plate, and the steel plate 2 4 is made of corrugated steel plate, and the steel plate 1 is arranged on the inner side of the energy storage box close to the heat source; the steel plate 2 4 is arranged on the outer side of the energy storage box away from the heat source, and the glue layer 5 is a fire-resistant glue; the steel plate 1 and the fireproof insulation material 2 are welded and reinforced by welding with butt welding nails; the fireproof insulation material 2 7 and the fireproof insulation material 2 are made of the same material.

[0066] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The principles and implementation methods of the present invention are explained in this article using specific examples. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A long-term fireproof and heat-insulating material for an energy storage cabinet, characterized in that: It comprises a mica packaging tape and a fire-resistant heat-insulating coating; the fire-resistant heat-insulating coating is evenly applied on the mica packaging tape; the fire-resistant heat-insulating coating is composed of the following raw materials by weight: 20-50 parts of ceramic film-forming polymer, 200-300 parts of dispersant, 1-3 parts of defoaming agent, 1-5 parts of wetting agent, 30-70 parts of temperature-resistant powder, 30-80 parts of temperature-resistant fiber and 6-120 parts of curing agent; The ceramic film-forming polymer is one or more of silicone resin, silicone emulsion and silica sol.

2. The long-term fireproof and heat-insulating material for energy storage cabinet according to claim 1, characterized in that: The particle size of the heat-resistant powder is preferably 100-300 mesh and the specific surface area is 2-8m 2 / g of one or more combinations of white carbon black, silicon dioxide powder, and alumina powder; The heat-resistant fiber length is preferably 500-10000 microns; the specific surface area is 2-8m 2 / g of one or more combinations of aluminum silicate fiber, refractory rock wool, and glass fiber.

3. The long-term fireproof and heat-insulating material for energy storage cabinet according to claim 1, characterized in that: Before use, the heat-resistant powder and heat-resistant fiber need to undergo the following pretreatment to achieve surface modification; put the heat-resistant powder and heat-resistant fiber into an oven and dry them at 60-70°C for 1-2 hours, then add them into a mixer, add an NP-10 emulsifier aqueous solution with a mass concentration of 8-12% while stirring, add a 28-32% potassium methyl silicate aqueous solution after fully mixing, stir and mix evenly, put them into an oven, and dry them at 60-120°C.

4. The long-term fireproof and heat-insulating material for energy storage cabinet according to claim 1, characterized in that: The dispersant is NMP / deionized water.

5. The method for preparing a long-term fireproof and heat-insulating material for an energy storage cabinet according to claim 1, characterized in that: The following steps are involved: S1. Add 200-300 parts of dispersant by weight to the mixing tank, add 20-50 parts of ceramic film-forming polymer solution, 1-3 parts of defoamer, 1-5 parts of wetting agent in sequence under stirring for 15-20 minutes, S2. Then add 30-70 parts of heat-resistant powder and 30-80 parts of refractory fiber in sequence, use a mixer to stir at high speed for at least 30 minutes, and ball mill until the fineness of the heat-resistant powder is less than 50 microns, so that the slurry is evenly dispersed; then add 6-120 parts of curing agent, and stir the slurry until it is evenly dispersed to obtain a fire-resistant thermal insulation coating slurry. S3. After the refractory heat-insulating coating slurry is evenly applied to the mica packaging tape substrate, a layer of mica packaging tape is covered to seal it; the substrate is then pulled through a continuous oven to cure and dry the coating, and the dried mica packaging tape is rolled up and stored; S4. After the roll is transferred to a specific die-cutting device, it is cut to the required size.

6. The method for preparing a long-term fireproof and heat-insulating material for an energy storage cabinet according to claim 5, characterized in that: Step S3: Use any one of gravure printing, transfer coating and extrusion coating technology to coat the refractory heat insulation coating slurry at a specific surface load of 10-10000g / m 2 , adjustable width 10-100cm evenly coated on 10-100 micron thick continuous mica packaging tape substrate.

7. The application of a long-term fireproof and heat-insulating material for an energy storage cabinet according to claim 1 is characterized in that: A layer of insulating asbestos is pasted on the fireproof insulation material through a glue layer to obtain a fireproof partition. A glue layer is also provided on both sides of the fireproof partition. The fireproof partition is flatly pasted between the steel plate one and the steel plate two through the glue layer. The steel plate one and the steel plate two are welded and sealed around with steel bars to form a shell plate for the energy storage cabinet.

8. The application of a long-term fireproof and heat-insulating material for an energy storage cabinet according to claim 7 is characterized in that: A layer of fireproof insulation material 2 is pasted on the other side of the heat-insulating asbestos of the fireproof partition through a glue layer to form a fireproof partition 2. A glue layer is also provided on both sides of the fireproof partition 2. Then, the fireproof partition 2 is flatly laid and pasted between the steel plate 1 and the steel plate 2 through the glue layer. The steel plates 1 and 2 are welded and sealed around with steel bars to form a partition for the energy storage cabinet.

9. The use of a long-term fireproof and heat-insulating material for an energy storage cabinet according to claim 8, characterized in that: The first steel plate is a bent steel plate, the second steel plate is a corrugated steel plate, the first steel plate is arranged on the inner side of the energy storage box close to the heat source; the second steel plate is arranged on the outer side of the energy storage box away from the heat source, and the glue layer is a fire-resistant glue.

10. The use of a long-term fireproof and heat-insulating material for an energy storage cabinet according to claim 7, characterized in that: The steel plate and the fireproof and heat-insulating material are welded and reinforced by using butt welding nails.

Images