CN108645260A - A method of it realizing the contained structure of the phase-changing energy storage material of low degree of supercooling and prepares the structure - Google Patents
A method of it realizing the contained structure of the phase-changing energy storage material of low degree of supercooling and prepares the structure Download PDFInfo
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- CN108645260A CN108645260A CN201810456269.9A CN201810456269A CN108645260A CN 108645260 A CN108645260 A CN 108645260A CN 201810456269 A CN201810456269 A CN 201810456269A CN 108645260 A CN108645260 A CN 108645260A
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
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- 238000002360 preparation method Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
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- 238000009825 accumulation Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
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- 239000011435 rock Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
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- 238000004378 air conditioning Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
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- 150000001735 carboxylic acids Chemical class 0.000 description 1
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- QRJOYPHTNNOAOJ-UHFFFAOYSA-N copper gold Chemical compound [Cu].[Au] QRJOYPHTNNOAOJ-UHFFFAOYSA-N 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
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- 150000002739 metals Chemical class 0.000 description 1
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- 239000011733 molybdenum Substances 0.000 description 1
- 201000009240 nasopharyngitis Diseases 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
-
- 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
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Laminated Bodies (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The present invention provides a kind of contained structure of phase-changing energy storage material that realizing low degree of supercooling, including skeleton main body, the skeleton main body contains multiple holes for accommodating phase-change material；Being equipped in described hole can induce the coating of the phase-change material nucleation.The present invention also provides the methods of energy storing structure and reduction phase-change material degree of supercooling based on contained structure.Beneficial effects of the present invention mainly have：1, hole is opened up in skeleton main body, there is coating in hole, it is simple in structure, the degree of supercooling for the phase-change material being placed in one can be made to decline to a great extent；2, skeleton main body, coating, corrosion-resistant coating, phase-change material can have a wide range of application there are many collocation and manufacturing cost are low in selection；3, avoid nucleating agent sedimentation caused by supercooling property it is uneven, foam framework ensure that heat transfer character is uniform, greatly improve heat exchange efficiency.
Description
Technical field
The present invention relates to the technical field of phase-change material heat accumulation, cold-storage, especially a kind of contained structure of phase-change material, storage
Energy structure and the method for preparing the structure.
Background technology
Energy problem is the outstanding problem of 21 century human survival.The population in the world drastically expands, and energy demand is prosperous rapidly
Sheng is got up.In face of limited resource and in order to muchly survive, people must save the energy and effectively storage is sharp
With.Phase-change accumulation energy be people by the energy is saved in energy processes and effectively store it is a kind of in the way of.Its technology
It is to solve energy supply and demand unmatched contradiction over time and space.Especially visited in electric system peak regulation, manned space flight and deep space
Survey, Solar use, waste heat recovery, heating air conditioning and household electrical appliances industry energy field, can be utilized extensively.
Excellent phase-changing energy storage material, it should with latent heat of phase change is big, degree of supercooling is low, thermal conductivity is high, phase change cold-storage temperature
The advantages that point is suitable.Energy storage material includes：Organic phase change material, inorganic phase-changing material, organic and inorganic material mixing material.
All material has degree of supercooling phenomenon in condensation process, including be changed into liquid from gaseous state, liquid be changed into it is solid
State.It is cooled to solid metallic from molten metal, degree of supercooling can all occur to crystalline hydrate salt cooled and solidified for solid state crystallization object
Phenomenon.In general degree of supercooling can regard as phase-change material start condensation temperature and melting point difference (melting point almost or
Person is equal to two-phase coexistent point).The temperature spot that phase-change material starts condensation needs to be different from two-phase coexistent point.Degree of supercooling phenomenon is object
The hysteresis of matter phase transformation.
Phase-changing energy storage material application research and development with application process, what the size of degree of supercooling can restrict that material applied can
Row.Material degree of supercooling height means that latent heat cannot be released near biphase equilibrium point with material, is fitted so that material is lost
Suitable phase transition temperature advantage.In addition it also can be the designing technique difficulty for carrying out bigger to the equipment belt that material freezes, also be unfavorable for energy saving.
For example, for the cold-storage engineering in life temperature area (it is required that phase equilibrium point is at -30 to 10 degrees Celsius), supercooling
Degree height means to require higher to the refrigerating capacity of equipment, so as to cause the energy expenditure bigger for refrigeration.It is suitable to possess
In the material of phase equilibrium point, ice storage material is widely used general, not only its phase equilibrium proper temperature, and its latent heat of phase change
It is very high in the phase-change material of all applications, the especially latent heat highest of pure water.It is usually used in live fresh-keeping, food and medicine
The remote way Refrigerated Transport of object, extensive icing cold accumulation air-conditioner etc..But often degree of supercooling is big for aqueous ice storage material, especially pure water mistake
Cold degree, up to 39 degrees Celsius (subzero 39 degrees Celsius of ability icings forming cores), common cold-storage gel degree of supercooling are often also very big
(ten several years).If not reducing degree of supercooling by every means, refrigeration equipment must have powerful lower cooling capacity and heat preservation
Performance.Thus, which the design of refrigeration system can increase with manufacturing cost.In addition, refrigeration system is due to working long hours in low
Temperature state, leakage thermal phenomenon can not avoid, and the power of the system consumption energy can increase, to which more and a large amount of energy is consumed.
It is unfavorable for energy saving.Therefore, degree of supercooling is reduced, is beneficial to reduce equipment design and manufacture cost, is also beneficial to energy conservation.
The method for reducing degree of supercooling at present has：Supercritical ultrasonics technology elastic potential energy method, paddling process, mixes, adds nucleating agent, is micro-
Capsule method.Ultrasonic wave, elastic potential energy, paddling process belong to the method for needing dynamic disturbance to help forming core, need motion structure
Or additionally addition unit is to increase technical sophistication degree and control complexity, not enough simply.It mixes, to add nucleating agent past
Toward there is phenomena such as impurity and nucleating agent precipitation, phase transformation freezing interface exclusion particle are to cause to reunite, it is unfavorable for particle and exists
In phase-change material disperse (phase-change material refers mainly to the fluids such as liquid herein), to ensure the low supercooling of phase transformation matrix it is uniform with it is steady
It is qualitative.The verification that is carried out by unified measurement experiment means and by studying report it is recognised that nowadays generally studying
Adding various exogenous impurity particles (has novel material such as carbon nanotube, nanometer CuO, nanometer Al2O3Deng) reducing effect it is universal
At subzero more than ten to 20 degrees Celsius, and reducing effect is not sufficiently stable.Microcapsules energy storage technology be by solid, liquid or
Gas material, which is embedded in, to be discharged in micron-sized microencapsulation, controlling the material being embedded under certain conditions in expection
Go out institute's calorific requirement or cold.Although microcapsule method energy storage technology can reduce degree of supercooling, the preparation process of capsule is cumbersome multiple
Miscellaneous, for different phase-change materials, often preparation method differs, and poor universality is only present in the research of aqueous phase material
On a few crystalline hydrate salt.But the crystallization water and salt degree of supercooling of these microcapsules encapsulation are still very big (to be taken the photograph up to more than 30
Family name's degree).Compared with pure water, the latent heat of phase change of crystalline hydrate salt itself may be significantly smaller, in addition the hole reason between microcapsules, more
It has further resulted under same volume, the whole energy storage density of energy storage material macroscopic view declines apparent.
To sum up, the structure or method of phase-change material degree of supercooling are reduced there are many prior arts, however these structures
Or method is complicated, and application cost is higher, energy storage effect is undesirable.
Invention content
The object of the present invention is to provide a kind of contained structures of phase-changing energy storage material for realizing low degree of supercooling and preparation should
The method of structure, primarily to solve presently, there are, in the structures and methods that reduce phase-change material degree of supercooling it is excessively complicated,
And the problem that energy storage is ineffective, it can also solve uneven using sedimentation caused by general granulated nucleating agent, supercooling property
The defect of even stabilization.
The present invention provides a kind of contained structure of phase-changing energy storage material that realizing low degree of supercooling, including skeleton main body, institutes
It states skeleton main body and contains multiple holes for accommodating phase-change material；Being equipped in described hole can induce the phase-change material nucleation
Coating.
Preferably, described hole is interconnected.
Preferably, the PPI values of described hole are 5 or more.
Preferably, the porosity of described hole is between 70% to 95%.
Preferably, described hole internal face is equipped with corrosion-resistant coating with the covering interlayer.
Preferably, the corrosion-resistant coating includes the first protective layer and the second protective layer.
The present invention also provides a kind of energy storing structures with low degree of supercooling, including the contained structure, and are filled in
Phase-change material in described hole.
Preferably, the skeleton main body is foam metal, and the phase-change material is water base phase-change material.
The present invention also provides a kind of methods being used to prepare the contained structure, include the following steps：Clean the bone
Frame body, the skeleton main body contain multiple holes for accommodating the phase-change material；In the hole of the skeleton main body
Surface carries out electroless plated or plating, to form etch-proof coating；The coating is prepared in the coating surface.
The present invention also provides a kind of methods being used to prepare the energy storing structure, include the following steps：With foam metal
As the skeleton main body；Surface clean is carried out to the foam metal；To the hole inner surface of the foam metal
It learns immersion plating or plating forms etch-proof coating；The coating is prepared in the coating surface；By the phase-change material
It is filled into the skeleton main body with the coating.
Beneficial effects of the present invention mainly have：
1, hole is opened up in skeleton main body, there is coating in hole, it is simple in structure, the phase-change material being placed in one can be made
Degree of supercooling decline to a great extent；
2, skeleton main body, coating, corrosion-resistant coating, phase-change material be in selection, can there are many collocation, have a wide range of application and
Manufacturing cost is low；
3, avoid nucleating agent sedimentation caused by supercooling property it is uneven, foam framework ensure that heat transfer character is uniform,
Greatly improve heat exchange efficiency.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the structure schematic diagram of energy storing structure in one embodiment；
Fig. 2 is the pore space structure detailed schematic in Fig. 1.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
As shown in Figure 1 and Figure 2, the contained structure of a kind of phase-change material 3, including skeleton main body 1, the skeleton main body 1 contain
Multiple holes for accommodating phase-change material 3；Having in described hole can induce the coating 2 of the phase-change material nucleation.
One of the main function of skeleton main body 1 is that the space (i.e. hole) of receiving is provided for phase-change material 3, therefore general feelings
Under condition, skeleton main body 1 can be the solid of single substance composition, such as metallic copper, aluminium or carbon-based material, they can be real
The heart can also be hollow；Certainly, be also not excluded for skeleton main body 1 be by different material compositions, under some cases, skeleton master
Body 1 can also have dismountable structure.In the prior art, foamed material (foam metal, foamed plastics, the bubble of such as open cell type
Foam carbon) particularly suitable as skeleton main body 1, reason is that these materials can be obtained directly on the market, and in addition they are made
The abscess having after creating can be used directly as hole.
Size, the shape of hole can be various, they can be interconnected, and can also be part connection, at some
In the case of special, they can also be disconnected.Certainly, connection is best, and phase transformation material is placed in filling of being more convenient in this way
Material is wherein.The inner surface of hole can be by anti-corrosion treatment, can also be without anti-corrosion treatment.
In order to make the degree of supercooling as phase-change material therein have more significant decline, the PPI (also known as " Pores of hole
Per Linear Inch ", the Chinese meaning " void level unit ") value and porosity be to be worthy of careful study in value.Generally
For, the PPI values of described hole are 5 or more, and for the porosity of described hole between 70% to 95%, effect can be relatively good.When
When using porosity as 85%~95% foamed material, it can ensure to fill phase transformation fully there are filling phase-change material space
Composite material after material integrally has the amount of latent heat having close to the phase-change material itself under same volume.
As for phase-change material 3, it can be various types or phase.It can be mixture, can also be pure
Object.It can be solid material, can also be fluent material or gas material.Can even is that it is solid-liquid material, solid and gas material, liquid
Gas material, solid-liquid-gas material.In some cases, phase-change material can be specifically vapor (gas), added with dispersion nanometer
The aqueous solution (solid-liquid) of particle, the paraffin (liquid) of melting state fill bladdery water (gas-liquid) etc..
Contained structure is particularly suitable to accommodate the material that will appear notable degree of supercooling when those condensations.Such as in inorganic material,
The condensation degree of supercooling of the materials such as aqueous gel, crystalline hydrate salt, pure water is big.Such as in organic material, alcohols, esters, carbohydrate with
And carboxylic acids etc. has-OH, the material degree of supercooling of the functional group of-COOH water imbibitions larger.These materials all hold suitable for being put into
In micro-nano structure.
Coating 2 uses nucleation material (nucleating agent), is nucleated for induced phase transition materials 3, so using the appearance
When micro-nano structure, coating 2 is that phase-change material 3 is to be in direct contact.Carry out induced phase transition materials using nucleating agent to be nucleated, it is theoretical and
Way is ripe.
Coating 2 can be the coarse structure substance with micro-nano scale topography, can also be after being condensed with phase-change material
Crystal have just as crystal structure the solid matter with closer crystal lattice constant.Can also be that not only there is micro-nano pattern,
There is the crystal after being condensed with phase-change material that there is the solid matter with closer crystal lattice constant just as crystal structure.
In the prior art, it is that nucleating agent is added in phase-change material and (such as adds nucleating agent that induction, which is nucleated general mode,
It is added in water)；And using nucleation material as the wrappage (i.e. coating 2) of phase-change material 3, it can be in the mistake for reducing phase-change material 3
In terms of cold degree, unexpected, better effect is played；It also avoids directly adding nucleating agent in phase-change material simultaneously and cause
Particle sedimentation the problem of generation.
In most cases, coating 2 and the material of skeleton main body 1 are different, but are not excluded under some cases, it
Be be integrally formed and have same material.
In some cases, the presence of coating 2, can be completely isolated by phase-change material 3 and hole inner wall；But other feelings
Under condition, coating 2 can also be incomplete coverage hole inner wall.
The common production method of coating 2 is coating or electroless plated, and certain those skilled in the art also can be according to reality
Border needs and uses other prior arts.
Under some cases, hole inner wall is directly connected with coating 2；Under some cases, described hole internal face with it is described
Corrosion-resistant coating is equipped between coating 2, main purpose is that 2/ phase-change material 3 of coating and skeleton main body 1 directly connect in order to prevent
It touches and corrodes.
Anticorrosive property means can be plating single layer anticorrosive property substance, such as gold, tungsten, molybdenum, platinum corrosion resistant metal.
It can be plating protective layer with multi-layer structure.In some cases, the corrosion-resistant coating includes the first protective layer and the
Two protective layers, at this point, hole inner wall and the first protective layer connect, the first protective layer and the second protective layer connect, the second protective layer
Connect with coating 2.Such as foam gold copper surface is needed before gold-plated, in one layer of nickel of foam copper coating surface, later
It is gold-plated again.In this way, nickel layer has collectively constituted anticorrosive property layer with layer gold.
Certainly, corrosion-resistant coating can also be not described in detail here with the structure of more layers.
It is a kind of storage with low degree of supercooling after phase-change material is filled with inside it based on contained structure above-mentioned
It can structure.
To make those skilled in the art further understand preceding solution and technique effect, it is set forth below two more
Specific example, to illustrate the preparation of energy storing structure, and the technique effect brought.
Embodiment 1
Implementation steps are as follows：
(1) it is 100 to select PPI, and the open celled foam copper that porosity is 90% is carried out cleaning and surface active work
Make, oil removing → washing → oxide film dissolving → washing → pickling → washing.
(2) to the foam copper chemical nickel plating after cleaning, thickness control is between hundreds of nanometers to 1 microns, cleaning, and
Gold-plated, gold plating thickness is controlled at 100 nanometers, is then cleaned and is preserved plating piece.Obtain at this time be foam metal material (i.e.
Skeleton main body 1), and such foamed material is through anti-corrosion treatment.
(3) this is in the covering that the foam metal material surface after anti-corrosion treatment prepares induced phase transition materials condensation nucleation
Layer 2, i.e., to hole surface chemical plating silver.Silver plating thicknesses are subject to coating and are more nearly or completely revealed as fine silver color.General thickness is slapped
Control is at 100 nanometers or more.It cleans, dry later.The ethanol solution that iodine is immersed then at rather dark place impregnates
2h.It takes out, with washes of absolute alcohol at least 3 times, and impregnates 10min or more.It finally takes out and dries.It has obtained being covered with induction
Pure water, which freezes, is nucleated the contained structure of coating 2.
(4) due to the obtained porous material (i.e. contained structure) for being covered with induction pure water icing nucleation coating 2
It is directly immersed in pure water through super hydrophilic, thus by the obtained porous material for being covered with induction pure water icing nucleation coating 2
Water can be filled up.It has just obtained to realize that the composite phase-change cool storage material that low degree of supercooling freezes (obtains energy storage knot in this way
Structure).
In the present embodiment, with dsc measurement means, the receiving knot for being overplated with induction pure water icing nucleation coating 2 is found
Structure enables to the degree of supercooling of pure water to be reduced to 2 degrees Celsius.This result shows that, degree of supercooling improvement shows excellent in the field
It is different.Compared with other ice storage materials in the research field, not only the composite material degree of supercooling is very low, and possesses other materials
Incomparable high heat conductance, high latent heat.The composite material also maintains the low overheat of phase transition process, and (melting point is hardly
Become).There is no the settlement issues (energy storage property can be caused uneven and unstable) that addition particle is brought.The result also will be significantly
Better than the effect for reducing degree of supercooling using foam copper merely.
Embodiment 2
To cool storage material, it is desirable that in the case of light weight, implementation steps can be as follows：
(1) it is 100 to select PPI, the Open-cell Aluminum Foam that porosity is 90%.Cleaning and surface active are carried out to it.It removes
Oil → washing → oxide film dissolving → washing → pickling → washing.
(2) anti-corrosion treatment is carried out to the foamed aluminium after cleaning, the metals such as platinum plating can be selected, but comparatively, it is gold-plated
Cost is relatively low.Specifically flow is：Zinc-plated → cleaning → nickel plating → cleaning → electroless plated gold → cleaning.Zinc Coating Thickness is tens of
Nanometer and above can (the first protective layer), nickel plating (the second protective layer) thickness is gold-plated between hundreds of nanometers to 1 microns
100 nanometers of (third protective layer) thickness.
(3) silver-plated → cleaning → drying.It is soaked in 2h in the ethanol solution of iodine later.Soaking process is needed dim
Or darkroom place carries out.Silver-plated (coating 2) thickness is subject to coating and is more nearly or completely revealed as fine silver color.General 100 receive
Rice or more.
(4) foam element is taken out from the absolute ethyl alcohol of iodine.In dim place, rinsed 3 times with absolute ethyl alcohol, and impregnate
10min finally dries, and thus obtains contained structure.
(5) contained structure is mixed with 4% alcohol.It is high low degree of supercooling, light weight, thermal conductivity are obtained, latent heat of phase change is high
And maintain the composite phase-change material (i.e. energy storing structure) of low overheat.
It is detected using dsc measurement means, degree of supercooling can about be down to 0.4 degree Celsius.This result is ground with other in the field
It is excellent compared to showing to study carefully achievement.Simultaneously without the degree of superheat.And the structure can also take into account advantage light-weight, that energy storage density is big.
To sum up two embodiments can be seen that energy storing structure and be applicable not only to pure water icing, can also be suitable for such as alcohol
Equal phase-change materials.In various phase-change materials (organic or inorganic), the degree of supercooling of water is very big, if this energy storing structure
The degree of supercooling of water freezing can be significantly reduced, as long as can ensure that phase-change material is not covered with what the condensation of induced phase transition materials was nucleated
Cap rock and foamed material chemically react, then similarly can also reduce the degree of supercooling of other any phase-change materials.And it drops
Low degree of supercooling effect will be substantially better than effect of the covering composition granule of individually addition induced phase transition materials condensation nucleation as nucleating agent
Fruit will also be substantially better than the effect directly mixed with phase-change material using original foam material.
Summing-up, the present invention discloses a kind of methods being used to prepare the contained structure, include the following steps：Cleaning
The skeleton main body, the skeleton main body contain multiple holes for accommodating the phase-change material；In the skeleton main body
Hole inner surface carries out electroless plated or plating, to form etch-proof coating；Described cover is prepared in the coating surface
Cap rock.
Summing-up, the present invention discloses a kind of methods being used to prepare the energy storing structure, include the following steps：With bubble
Foam metal is as the skeleton main body；Surface clean is carried out to the foam metal；To the hole inner surface of the foam metal
It carries out electroless plated or plating and forms etch-proof coating；The coating is prepared in the coating surface；By the phase
Become material to be filled into the skeleton main body with the coating.
The above is only some embodiments of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of contained structure of phase-changing energy storage material that realizing low degree of supercooling, including skeleton main body, it is characterised in that：The bone
Frame body contains multiple holes for accommodating the phase-change material；Being equipped in described hole can induce the phase-change material nucleation
Coating.
2. contained structure according to claim 1, it is characterised in that：Described hole is interconnected.
3. contained structure according to claim 1, it is characterised in that：The PPI values of described hole are 5 or more.
4. contained structure according to claim 1, it is characterised in that：The porosity of described hole 70% to 95% it
Between.
5. contained structure according to claim 1, it is characterised in that：Described hole internal face is equipped with the covering interlayer
Corrosion-resistant coating.
6. contained structure according to claim 5, it is characterised in that：The corrosion-resistant coating includes the first protective layer and the
Two protective layers.
7. a kind of energy storing structure with low degree of supercooling, it is characterised in that：Including appearance according to any one of claims 1 to 6
Micro-nano structure, and the phase-change material that is filled in described hole.
8. energy storing structure according to claim 7, it is characterised in that：The skeleton main body is foam metal, the phase transformation
Material is water base phase-change material.
9. a kind of method being used to prepare the contained structure described in claim 1 to 6, it is characterised in that：
Include the following steps：
The skeleton main body is cleaned, the skeleton main body contains multiple holes for accommodating the phase-change material；
Electroless plated or plating is carried out in the hole inner surface of the skeleton main body, to form etch-proof coating；
The coating is prepared in the coating surface.
10. a kind of method being used to prepare energy storing structure according to any one of claims 8, it is characterised in that：
Include the following steps：
Using foam metal as the skeleton main body；
Surface clean is carried out to the foam metal；
It carries out electroless plated to the hole inner surface of the foam metal or is electroplated and forms etch-proof coating；
The coating is prepared in the coating surface；
The phase-change material is filled into the skeleton main body with the coating.
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