CN101989493A - Ceramic capacitor physical battery with electric energy latching function - Google Patents
Ceramic capacitor physical battery with electric energy latching function Download PDFInfo
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Abstract
The invention discloses a structure of a physical battery consisting of ceramic capacitors and having an electric energy latching function, and a manufacturing method thereof. The structure of the battery at least comprises a dielectric thin film layer, at least more than two embedded conductive internal electrodes and an internal insulating material, wherein the dielectric thin film layer consists of alumina/encapsulated antiferromagnetism and ferroelectrics (AFF) powder and an insulating infill, and is numbered as 1 in figure 1; the embedded conductive internal electrodes are numbered as 2 in the figure 1; and the internal insulating material is numbered as 3 in the figure 1. For laminated capacitors, the battery also comprises terminal electrodes numbered as 4 in the figure 1, terminals or leads numbered as 5 in the figure 1, an external encapsulating insulating material numbered as 6 in the figure 1, an anti-magnetic interference material shell numbered as 7 in the figure 1, and the like.
Description
Technical field
Content of the present invention relates to the electron stored energy field, the physical battery based on the capacitor principle that utilizes a kind of compound molecular material film and electrode, insulator to form.
Background technology
Since the electrochemical cell of Italian scientist Fu Da (Vlota) in 1800 invention comes out, be applied to many fields in people's daily life and the work based on the various product of electrochemical cell, what wherein be most widely used is lead-acid battery.
It is strong to belong to electrochemical lead-acid battery corrosivity, and environmental pollution is serious, the cost of upkeep height, and the charging interval is long, and useful life is short, and Unit Weight storing electricity index is lower, often can not satisfy the higher application requirements of many aspects.
After, the mankind have developed nickel metal species battery (comprising: nickel-cadmium (Ni-Cad), nickel-zinc (Ni-Z) and nickel-hydrogen cell), lithium battery, fuel cell, solar cell etc. successively.Though these batteries relatively lead-acid battery make moderate progress on some performance, if any make moderate progress aspect the environmental pollution, what have increases aspect the storing electricity under Unit Weight, what have shortens to some extent aspect the charging interval ... or the like.1., cost improves but also having occurred some new problems simultaneously,, is more than 3 times of lead-acid battery as the battery cost of storing electricity under the same units weight; 2., new fail safe appears, may set off an explosion as some materials; 3., there is memory effect, as nickel-hydrogen cell; 4., photoelectricity or conversion efficiency of thermoelectric be lower, is lower than 16% as the actual transformation efficiency of solar cell; 5., the charging interval is still long etc.; 6. battery is limited useful life, is lower than 700 times as the effective charging times of best lead-acid battery; 7., maintaining cost height, as lead-acid battery electrode pad is required regularly to change; 8., chemical corrosivity is strong, the clothing and the fixture of the contact of ablating easily, big for environment pollution etc.
In the battery applications of the above-mentioned type, occupied the staple market of present product based on the battery of electrochemical principle.
In the past, because electric leakage is fast, and storing electricity is low, and volume is big, some material also environmental pollution affected greatly or the like reason, had hindered its commercial application, stayed cool substantially for a long time based on the research of the battery of physical principle.
The invention describes dielectric substance film based on a kind of compound molecule, conductive electrode material, and insulating material forms, and the ceramic capacitor of electric weight latch function is arranged, and by a plurality of this capacitors integrated ceramic cell structure and typical manufacture method.
The employed dielectric core material of this product is the molecule composite granule, this is the antiferromagnetic molecular material class of a kind of calcium titanium class (antiferromagnetism, AFM) with the mutually ferroelectric molecular material class in four directions (Ferroelectrics tetragonal, FET) mutually compound new structural material (Antiferromagnetism﹠amp; Ferroelectrics is called for short AFM-FET, or AFF), one of its typical case's representative is the material of manganese and oxygen compound and barium titanate powder bluk recombination.
Because AFF capacitor that the present invention describes and ceramic cell are a kind of based on improved capacitor charging working mechanism on the physical significance, it is little to have an electric leakage, can charge repeatedly, the memory capacity height, the charging interval is short, environmental protection, non-explosive, cost is low, characteristics such as long-life; Particularly significantly distinguish and be that its electrical leakage quantity is very low with traditional ceramic capacitor, the ceramic cell that this improved capacitor is formed obtains new technological progress in actual applications, at electronics, electric power, means of transportation (comprising vehicle, boats and ships and aerospace vehicle) application prospect is arranged.
Though the ceramic cell of being made up of the AFF capacitor is on cellular construction, approximate with present stacked capacitor structure (MLCC), it is with the MLCC fundamental difference: 1, powder structure is different.MLCC adopts the barium titanate powder body technique of semiconductor crystal boundary type ceramic material usually, and ceramic cell adopts the composite granule of the AFF parcel of based semiconductor crystal boundary type ceramic material, wherein comprises the barium titanate/Mn oxide composite granule of parcel; Should lay special stress on, the barium titanate/Mn oxide coated powder of based semiconductor crystal boundary type ceramic material only is a big class in the AFF material family; 2, both also have a lot of differences on the stack technology technology.General MLCC adopts first film forming, back sintering, and adopt the water isostatic pressing process, and the AFF capacitor adopts first powder sintering, the technology of back film forming, and adopt heat and other static pressuring processes etc.; 3, in the physical sense, the outstanding characteristics of AFF capacitor are to utilize the electric weight latch function of self, with accumulating in the electric charge at electrode two ends under the external charging electric field action, after charging electric field removes, continue to preserve, rather than reduction rapidly causes quick electric leakage as MLCC.
History, present situation and technical progress about foregoing, there are lot of documents and the data can be for reference, comprising Qu Yuanfang " physical property of functional ceramic " (2005, Chemical Industry Press), beam power equality " chip-type laminated ceramic capacitor " (2008, publishing house of Ji'nan University).
U.S. Richard Wier etc. have described a kind of manufacture craft of the energy storage unit based on modified barium carbonate in the patent of its (US 7033406) energy storage unit.Their patent on the material structure with the manufacture method of technology on this patent difference as follows: 1, this patent has clearly adopted the dielectric material structure different with it.This material has used with the powder body material of coated AFF structure as core dielectric, as the barium titanate/manganese oxygen base complex chemical compound of parcel, and is not only indefinite barium titanate of structure and manganese oxo-compound; 2, in anti-electrical breakdown, the better polyimides of serviceability (Polyimide is called for short PI) class insulating material is recommended in high temperature resistance and anti-aging aspect, this patent, with respect to ethylene glycol terephthalate (the being called for short PET) material of routine, can exempt freezing pulverization process technology; 3, this patent adopted more reasonably embedded in electrode structure, be fit to safety, large-scale industrial production cheaply, 4, this patent emphasizes that terminal lead etc. are located at the outer surface of AFF capacitor and ceramic cell, adopts diamagnetic material, as metallic copper etc.
Because the relevant AFF capacitor that this patent is described and the technology contents of ceramic cell, its key is important understanding that its associated core materials A FF powder and film are obtained, this patent will be introduced the important physical action mechanism of some of them simultaneously, its objective is the understanding of being convenient to this patent.
Summary of the invention
The invention describes a kind of structure and manufacture method of the physical battery of forming by ceramic capacitor by the electric weight latch function.This battery structure comprises at least: by aluminium oxide/coated AFF powder, and the insulation filling body forms electrode in the thin dielectric rete produce (Fig. 1 1), the plural at least embedding conduction (Fig. 1 2), and interior insulating material (Fig. 1 3); For stacked capacitor, also comprise its termination electrode (Fig. 1 4), terminal or lead-in wire (Fig. 1 5), material shell of outer package insulating material (Fig. 1 6) and anti-magnetic disturbance (Fig. 1 7) etc.;
Its structure and physical features are as follows;
Architectural feature is,
Thin dielectric rete structure, comprising having calcium titanium class inverse ferric magnetosphere (Fig. 1 8) and cubic ferroelectric layer mutually (Fig. 1 9) the compound coated AFF of molecule powder, and wrap up a layer thickness again less than the non-conductive functional metal oxide materials of 10nm (Fig. 1 10), as α-AI at AFF powder superficies
2O
3The secondary coated powder that forms; This powder and interior insulation filling material be according to the mixed of 50: 1 to 99: 1 scopes, and be made into the function based on AFF, and thickness is less than the AFF thin dielectric rete of 10 μ m;
Electrode structure in the conduction is embedded in electrode in the conduction of AFF thin dielectric rete, and its positive and negative two end electrodes is in opposite directions and staggered, and thickness is at the 1-2 mu m range, and inner electrode comprises following a kind of at least: Au, Ni, Al, Ag, Zn, metals such as Cu;
Interior insulating material structure, between about the AFF dielectric layer of the interior electrode of embedding, and except that the termination electrode that exposes, interior insulating material also will be filled in AFF dielectric layer four limits, its material at least mainly comprises following a kind of: devitrified glass, ethylene glycol terephthalate (being called for short PET), polyimide resin, and their derivative etc.;
The stacked capacitor end-electrode structure, adopt special-purpose conducting metal welding material, or high-load Ag go back the oxygen electroconductive resin, respectively two same polarity electrodes with the battery unit two ends of superimposed layer are connected, and respectively with conducting terminal, or contain the clamped nipple that connects conductor leading and connect; Antimagnetic interfering material
The outer package insulating material structure, its material at least mainly comprises following a kind of: epoxide resin, phenolic resins, the PET resin, acrylic resin, polyvinyl resin, or polyimide resin, and their derivative etc., its function is except that external terminal and lead, with battery body and the high electric insulation of extraneous maintenance;
The shell mechanism of antimagnetic interfering material, the shell of capacitor comprises the conducting terminal and the conductor leading of externally drawing, adopt diamagnetism and paramagnetic material, or produce functional diamagnetic coating on the other materials surface, its material at least mainly comprises following a kind of: Au, Ni, Al, Ag, Zn, Cu etc., its function is every magnetic and anti-residual, prevents the adverse effect that cause product in magnetic field;
Physical features is,
By electrode, externally electric field acts on down forward or backwards, and the AFF magnetoresistive ratio has significant resistance to open or close variation characteristic between 50%-109%;
1., when charging, under the positive acting of DC charging voltage, by electrode, AFF thin dielectric film resistance suddenly descends, and makes electric charge gather the electrode surface end rapidly, electrical energy storage density significantly increases;
2., when charging is finished, under the acting in opposition of DC charging voltage, (add instantaneous reverse biased), and load resistance Ω is greater than 10
8---when infinitely great, this moment is because the instantaneous increase of magneto-resistor, the electric charge that accumulates in the electrode surface end effectively is blocked in AFF compound molecule structure outside, make the electric charge that accumulates in electrode tip be difficult to fast return, prevented to return fast the generation of leakage phenomenon, and keep, this moment, the AFF capacitor can the longer term storage electric weight, and this is unique electric weight latch function;
3., when discharge, insert load at the electrode two ends, and when load resistance Ω be less than 10
8During extremely near nonzero value, the AFF capacitor will accumulate in the electric charge of electrode surface end, be released through load resistance, and electric charge is zero until between electrode tip;
4., when the working temperature of AFF capacitor and ceramic cell is higher than the critical value of self, its electric weight latch function will lose efficacy;
5., when the working temperature of AFF capacitor and ceramic cell is got back to the critical value of self, redefine polarity through initialization charging; Its electric weight latch function recovers;
If 6. electric current is excessive during charge and discharge, and it is frequent, may cause the lead heating, outside high temperature may be transmitted to AFF capacitor dielectric inside through lead, cause that this layer internal temperature raises, near or when surpassing the technology critical temperature range, this situation will influence its electric weight latch function.When above situation occurring, can take physical method to importing the position of heat, as lead, shell etc. are taked cooling provision;
Usually in the technology critical temperature range of regulation, use according to 1. carrying out repeatedly charge and discharge repetitive cycling to process 3.;
Circuit characteristic is,
1., to plural AFF capacitor (C1, C2 ... Cn) unit can be in parallel, thereby can realize the more jumbo ceramic capacitor group C that a plurality of capacitors form (Fig. 2-a), and apply it to field of batteries;
2., the single channel charging, can rely on charging circuit control (or charger) merely, design the reverse biased function, after finishing when charging, external power source Ua is that AFF capacitor group adds reverse biased, use has approximates infinity auxiliary resistance R ', start the electric weight latch function, illustrate as Fig. 2-b, thereby prevented to return leakage current fast, cause the generation of charging voltage Uaff rapid drawdown phenomenon, in this case, independently magnetic shielding material (entity or coating) is adopted in capacitor devices outside (shell contains terminal lead), can prevent that adjacent capacitor or magnetic field sources from impacting the electric weight latch function of self AFF capacitor;
3., two-way charging, for the ceramic cell structure, can pass through the two-way charging device, two groups are charged simultaneously with parameter AFF capacitor (group) C and C ', after charging finishes, two Battery packs respectively are the other side's reciprocal bias voltage, and use auxiliary resistance R ', start the electric weight latch function, illustrate as Fig. 2-c with approximates infinity, thereby prevented to return leakage current fast, caused the generation of charging voltage Uaff rapid drawdown phenomenon.In this case, can adopt magnetic shielding material (entity or coating), can prevent that adjacent capacitor or magnetic field sources from impacting the electric weight latch function of self AFF capacitor AFF capacitor outside (shell contains terminal lead);
4., when discharge, under AFF capacitor C self voltage U aff effect, electric charge forms the loop through application load R, through overdischarge, along with the capacitor plate electric quantity density reduces gradually, until being zero, illustrates as Fig. 2-d;
5., the resistivity of auxiliary resistance R ' is big more, dielectric constant is low more, can make in the electric weight latch function start-up course, and is more little to the loss of electric weight;
6., this constructed products can long-life work as conventional ceramic capacitor at normal temperatures.
Utilizing the inventive method can instruct the professional and technical personnel in a plurality of fields to produce multiple is the product that is equal to based on this structure of core dielectric material with the AFF material, and is applied to otherwise system equipment and product.
AFF material, and thin dielectric film
The core of AFF capacitor and ceramic cell dielectric medium structure, i.e. coated AFF material structure.
Usually ferroelectric material also has outstanding high dielectric characteristic, in this structure except polarization characteristic, with other element combinations, can form typical ferroelectric ceramic crystal boundary semiconductor structure, its advantage is that its apparent dielectric constant is big, and this provides valuable help for improving the ceramic cell charging performance.
If there is not the AFF structure, in a single day remove the external electrical field effect usually, missed very fast the returning of electric charge that electrode tip is assembled through medium.Therefore, do not have the device of AFF structure,, only can be applied in the general application circuit, can not be applied to the energy storage under the long-time powering-off state as conventional capacitor.
The AFF material is a kind of by antiferromagnetic AFM material and the compound functional molecule material of the mutually ferroelectric FET material in four directions, can show the switching effect of magneto-resistor under the forward and reverse effect of electric field.For example at the state of opening of magneto-resistor, external voltage can be with highdensity accumulation to electrode surface; In the off status of magneto-resistor, can effectively prevent counter the flowing in the dielectric of electric charge on the electrode, so promptly guaranteed highdensity charge storage, prevented the loss of electric charge again.
The purity that guarantees the AFF powder material is very important all the time, because in the AFF phase transition process, impurity influences outside the AFF functional molecular performance except not guaranteeing chemical constitution accurately, and the puncture that causes owing to the impurity reason also may take place.This electrical breakdown consequence is to seriously influence the functional molecular performance more and may make its inefficacy.
In ceramic cell, coated AFF powder mixes the dielectric layer that is applied as form of film with insulator, may have pore problem, if under highfield, electrical breakdown can take place in these spaces, its process is: the hole generation ionization puncture in the medium, the medium part is heated and causes lattice parameter to degenerate, and the bias voltage that simultaneously original hole is born all is added in other media, make medium bear voltage and increase, the AFF powder is breakdown.
In the coating manufacturing process of thin dielectric film, the gap of existence and bubble are taked physical methods such as high temperature insostatic pressing (HIP), still are a kind of effective ways that the hole bubble prevents electrical breakdown that reduce.
Experiment shows: electrical breakdown can be 10
-7-10
-8Take place in second, generally take circuit methods to be difficult to control effectively fast.
Theoretical proof:, its anti-electric breakdown strength is improved if the powder distribution of sizes narrows.
Following data show: if bubble size reduces, its anti-electric breakdown strength is significantly improved.
| Sample | Hole mm | kV/ |
| 1 | 0.005 | 700 |
| 2 | 0.01 | 400 |
| 3 | 0.05 | 136 |
| 4 | 0.1 | 102 |
Take hole to be reduced to very little through necessary densification technology PROCESS FOR TREATMENT, have data to show: can reach the 500-1000MV/cm breakdown characteristics, be to go up nearly thousand times that show data.
For the non-conductive metal oxide of the one deck that wraps up again at the AFF skin, AFF powder as coated alumina (3), the filler that mixes with it, as: devitrified glass, PI, PET etc. or its insulation derivative, can be wrapped in the periphery of AFF powder/metal oxide layer, when magneto-resistor when opening state, on the tunnelling passage of ferromagnet (FM)-insulator (I)-ferromagnetic (FM) structure, usually as long as the insulator (1-10nm) in the certain thickness scope of this passage just can not influence passing of electronics.
In addition, the insulating packing of some parcel AFF, though service condition is looser in manufacturing process, its ageing properties, the temperature change in long term can produce altered chemical structure, and in a single day when puncturing at this medium point, this process is irreversible.In selecting the filler process, consider dielectric strength, heat resistance and the ageing resistace of insulating material.At devitrified glass, PI, in PET etc. or its insulation derivative, PI resin combination property is better, can directly obtain the resin of molecular level from producer, have the resistance higher and wear voltage strength, higher heatproof condition, longer ageing resistace than PET, with advantages such as technology are simple, unlike the PET granular powder, need carry out freezing further the pulverizing down and could use.
According to different application requirements, the AFF thin dielectric film, its thickness, granular size, integument thickness, and overall dimension will be different.
But, actual fabrication can be subjected to the considerable restraint of technology level, as: it is very little whether particle can be done, it is very thin whether thin film cladding technology can be done, and insulating packing characteristic or the like in also will considering, widely different based on many technical matters of associated production equipment, may cause widely different result, in any case but, as long as satisfied the structural primary condition of AFF, generally all can produce the AFF effect.Therefore, coated AFF thin dielectric film thickness can be between 0.1-10 μ m.
Usually can adopt casting machine coating or screen printing mode that the dielectric slurry is made into thin dielectric film, adopt the quality and the efficient of casting machine coating higher in the general large-scale production.
AFF capacitor and ceramic cell structure
By AFM, FET, the crystal boundary N-type semiconductor N ceramic dielectric film that metal oxide and interior insulating material are formed, with interior electrode, outer insulator, termination electrode, and the termination electrode lead-in wire, a kind of of compositions such as antimagnetic shell is the prototype system of Core Feature with the AFF dielectric material.
The AFF capacitor adopts the composite granule of the AFF parcel of based semiconductor crystal boundary type ceramic material, has wherein comprised the composite granule of Mn oxide parcel barium titanate structure; Adopt the powder of this structure technical maturity that possesses skills, advantage such as with low cost should lay special stress on be that the barium titanate/Mn oxide coated powder of based semiconductor crystal boundary type ceramic material also only is a big class in the AFF material family.
Example, the calcium titanium class Mn oxide that comprises Nd and Y element belongs to the AFM material, and the calcium titanium class titanium oxide that comprises Ba and Ca element belongs to the FET material, and coated AFF powder is a formed interface composite construction after FET powder periphery has been wrapped up one deck AFM; The thick a kind of non-conductive metal oxide of one deck 1-10nm that wraps up again in AFF layer outside: α-AI
2O
3Aluminium oxide; At α-AI
2O
3Periphery uses polyimide plastic as interior insulator filler, and the minimum coverage of filler is 1-10nm between the AFF of coated metal oxide particle; Electrode material can use nickel or aluminum metal, and the solid content thickness after the coating oven dry is at 1-2 μ m; Outer insulator can use the expediting setting type epoxide resin, and thickness is mainly just determined by the applied voltage of battery; The conduction curing agent can use the expediting setting type epoxide resin that mixes the high-load silver metal, or is exclusively used in the welding material of counter electrode, and one is terminated at termination electrode, and the other end is connected with lead-in wire with external terminal.
In actual applications, above prototype system is not enough, more is the laminated construction that adopts similar chip ceramic capacitor, and like MLCC is such, can produce the AFF capacitor of 500-1000 lamination, the technical from now on more lamination that also may make.This laminated construction has increased the interior electrode area of capacitor greatly, improves AFF capacitor stores electric weight index, is the expansion to AFF capacitor raw product.A plurality of this AFF capacitors can be assembled and be made into the store electrical energy is the big capacity ceramic cell of application.
Similar to the chip-type laminated capacitor arrangement of current MLCC; its interior electrode is in opposite directions positive and negative; and it is interlaced; termination electrode is conducting resinl by conducting metal welding or high Ag content respectively electrode in end in opposite directions positive and negative; realize firmly being connected with the binding post of outside; in the stacked capacitor outside; except that outside binding post; also to use outer insulating material to encapsulate; in the outer insulating material outside; can also according to circumstances increase diamagnetic material and carry out the magnetic protection, prevent the interference of external magnetic field (comprising remanent magnetism) AFF capacitor self-field.
Technical parameters such as powder body material and structure are adjusted, can be satisfied the application requirements of different demands in the AFF capacitor reality.
Can also make the product that becomes other different geometry appearance forms on the AFF capacitor arrangement, even comparatively complicated form, but its inherent working mechanism is still based on the basic prototype of this AFF capacitor.In fact the capacitor arrangement of chip (plane) stack has formed continuable production-lines in actual applications, suitably improves these technologies, and is for further reducing production costs, very important.
In sum, AFF capacitor described above and ceramic cell structure under the forward and reverse effect of electric field, can be controlled the variation characteristic of the magneto-resistor of AFF dielectric powder, realize the electric weight latch function, this is that present conventional capacitor and common batteries characteristic did not have.
Electrode and thickness
The electrode material of AFF capacitor and ceramic cell can adopt the metal material with diamagnetic or paramagnetic characteristic commonly used under the normal temperature as conductor, as Au, and Ag, Ni, Al, Cu etc.Consider factors such as the physical characteristic of electric conducting material and Financial cost, Ni wherein, Al, Cu are electric conducting materials cheaply.
For electrode particle is combined reliably with the AFF powder, and very high specific area, ideal situation are arranged is that the electrode powder is wanted enough carefully, as obtains the electrode powder of 30-100 nanometer.But the electrode particle of having bought on market is generally bigger, has influenced the above-mentioned specification requirement of electrode and dielectric substance, makes than the table contact area to reduce.
Because the aluminium physico mechanical characteristic is softer under the normal temperature, can be changed into fragility at low temperatures.Can adopt the freezing injection comminuting method of physics to the aluminium of cheapness, under high velocity air sprays, make aluminium powder, reach granularity requirements further pulverizing in the collision mutually.But because very short grained aluminium powder has very high activity, careless slightly can explosion caused and oxidation, unsafe factor of production link is increased, also influenced conductivity, therefore, limited the application of this material to a certain extent.
Because ultra-fine aluminium powder; molecular property is very active; on technology; can adopt special chemolysis method; after aluminium fully can being dissolved into needed microscopic dimensions degree, through separating technologies such as washed with de-ionized water; obtain meeting granularity requirements, still can obtain the nanometer aluminium powder under hygrometric state and inert gas shielding.
Comparatively speaking, ultra-fine nickel powder and copper powder can be accomplished 200nm even littler granularity, and their fail safe is better than aluminium, but will use inert gas in slurrying, preservation and coating process, prevent that they are oxidized.
Advantage is aluminium, copper, nickel successively on three kinds of material costs.
In addition, for the form of electrode, when forceful electric power is pressed application, must consider the influence of voltage point discharge especially, interior electrode is generally all very thin, and influence is little, but termination electrode all will be made the arc that radius is certain R value in its vertical corner.
In addition, on structural design, will consider also that sometimes forceful electric power depresses, the outer insulator that is fit to structural encapsulation is selected in the influence of surface discharge (corona, arcing) and edge breakdown phenomenon for use.
The thickness of electrode mainly is to determine that according to concrete technical matters the electrode cost also is a key factor.Guaranteeing that electrode district does not have under the prerequisite that covers defective, more Bao Yuehao.Therefore, thickness of electrode is comparatively suitable between 1-2 μ m.
Because the AFF structure powder is oriented and ordered in AFF capacitor and the ceramic cell, it is the best that guiding path is got with the shortest air line distance of direction of an electric field.When considering the structural design of electrode, also to consider following factor concrete, 1., the influence of AFF material polarization, as: c/a axial ratio parameter is 1.6, and the deformation meeting that takes place along direction of an electric field is very big; 2., Temperature Influence, as-40 ℃ of-85 ℃ of temperature ranges, also can have influence on electrode material and deform, line splits, and causes performance to be affected.The method that solves be except as far as possible electrode particle is done little, also to consider structurally can to offset the superposition of the size distortion that the external electrical field polarization causes as far as possible.For example: on manufacture craft, N layer AFF system is stacked up,, when lamination is a lot, certainly lead to up and down or the very large deformation of inward-outward direction if according to the prototype system electrode during at upper and lower surface, unfavorable in the AFF system; If the coating positive and negative electrode that interlocks according to certain intervals on same of lower plane on the film, and its interval quantity will make deformation along the vertical direction significantly reduce less than N.For increasing the electrode effective area, general lamination quantity is all very big, as the 200-1000 layer, therefore adopts embedded staggered configuration of electrodes better effects if.
Conductive electrode can adopt screen printing mode usually, according to the electrode pattern that stencil design goes out, is made into conductive film or conductive filament.In the general large-scale production, adopt high-precision automatic printing equipment can make its quality and efficient higher.
Insulating material
Usually, resistivity is 10
6-10
19Ω m scope, be applied to electric aspect material be called insulating material, belong to a class material of forbidden band broad.
The decreasing insulating that thermal losses causes is the most common.Usually the thermal losses degree of representing material with loss tangent (tan δ).Very little or almost do not have for this loss of polarity insulating material, but but have to draw attention for nonpolar insulating material loss.As: for 10
-16The tested electric current of A, wherein tan δ value is approximately 10
-4～2 * 10
-4
In the insulating material that AFF uses, the AFF powder is the polarity insulating material, and PI is nonpolar insulating material.
Under electric field action, polarity insulating material insulating material DIELECTRIC CONSTANT can alter a great deal usually, as Mn oxide, and AFF material etc., thermal losses is very little.Nonpolar insulating material insulating material dielectric constant is very low usually, and promptly ε is very little and change limitedly, and electric charge is when the material, and making the material polarization energy be converted to consumption of heat energy can be very big.
Insulating material generally has build-up effect, cans be compared to the effect of resistance series connection.Series resistance is many more, and resistance is big more, and insulating properties is good more.According to nano-meter characteristic, in the 1-10nm scope, when electronics passed through insulating material, thermal losses was very little, and this phenomenon is called as the electron tunneling effect.
In the AFF ceramic cell was used, nonpolar insulating material was divided into two kinds of inside and outside insulating material, and following effect is arranged respectively,
1., interior insulating material can wrap up and being filled in the AFF powder gap, effective thickness forms the thin dielectric rete 1-10 nanometer range, passes through to guarantee electron tunneling, improves the operating voltage of film; Interior insulating material and AFF combination of materials in the AFF dielectric layer have the resistance effect, and when AFF magneto-resistor during in off status, the equivalent resistance of interior insulating material (salic functional material) should be greater than the equivalent resistance of AFF dielectric particle.Interior insulating material can use devitrified glass, PET, and PI, and the derivative of these materials, wherein PI has better index and technology adaptive.
2., the aluminium oxide (α-AI that belongs to interior insulating material
2O
3), effective thickness forms the semiconductor crystal boundary structure of wrapping up with AFF between 1-10 nanometer;
3., according to structural requirement, also can fill interior insulating material around the electrode sometimes;
4., outer insulating material can realize structurally that electronics is isolated, guarantees that this thickness is enough to block electrons and passes through, effective thickness is far longer than 10 nanometers; Structural preservation effect etc.The general epoxy resin that uses rapid solidification, phenolic resins etc., convenient easy on the technology.Certainly, outer insulating material also can use as PET, materials such as PI, but cost increases a lot like this.
Comparatively speaking, being better than PET on the PI resin property, is graininess as the PET that sells on the market, and actual use will be sprayed it and be made its further pulverizing under cooler environment.Polyimides (PI) resin then can be directly obtains the slurry of molecular level on market, this is for being very important factor with it as interior insulating material.And, the electrical insulation capability under outstanding ageing-resistant, high temperature resistant, the radiation hardness of polyimides (PI) resin.Can use in that 250～280 ℃ of air are medium-term and long-term, these all be PET can't be obtained.
Ceramic cell is used
The ceramic cell that utilizes the AFF system principle to make, stored electric energy density can surpass conventional electrochemical cell under equivalent weight.The ceramic cell charging interval of physical characteristic only can finish between every minute and second, and it also has environmental protection, and the long-life does not have outstanding advantages such as aging, safety (not having blast) property.This technology can substitute traditional electrochemical cell future, even promise to be the power source of future generation of all-electric automobile.
This product both can produce the chip-type laminated structure of larger volume, also can produce the minimum capacitor grain structure of volume,
As a part in the semiconductor integrated circuit, this device of accumulate for a long time can be under the dead electricity situation, the characteristic of maintenance power supply; Under dispatch from foreign news agency intervention situation, realize quick charge, can be widely as the power source of various mobile devices, as notebook computer, mobile phone, tool equipments such as dust catcher, electric wrench etc. also can be applied in the permanent plant, as uninterrupted power supply (ups) Unity etc.
AFF capacitor and ceramic cell can produce the mentality of designing of innovation to product development, for example, under some equipment dead electricity situation, need the interior longer work of under charged hold mode, carrying out of regular period, under the condition that does not add dispatch from foreign news agency, combine with the microelectronics matrix circuit of flexibility by this small particle device, normal temperature down can the ordered control polar molecule dominance and the state of non-dominance, make the word or the figure of the state composition of this dominance and non-dominance, in tens days, still can clearly show; If this novel electronic paper need show new content, only need under special installation, after reinitializing, get final product by the new content of electronic data mouth input, this specific character can also be applied to as the new type superthin display device, in the design of similar products like such as billboard.
Because it is better that this AFF capacitor and ceramic cell unit energy/weight and unit energy/volume ratio and conventional batteries are compared performance, even can be applied in the battery applications in most advanced and sophisticated aerospace vehicle field.
The device of this accumulate structure can be applied to wind power generation, in the electric weight storage device of solar power generation, also can be applied in the aspects such as regulation and control during electricity consumption (high and low) peak valley in the local power net of city.
The ferroelectric AFF material structure with the anti-ferromagnetic structure combination of calcium titanium class can be selected for use the harmless substantially element of human body, human body and environment had safety, environmental protection, and relative cost is low, relatively easily realizes in process of production, is fit to commercially produce on a large scale.Relevant concrete implementation method will be described in an embodiment.
Aforementioned summary, comprise necessary, simplification, the details of summarizing and may omitting.Therefore, these contents only are brief descriptions.The content disclosed in it and the practice as conspicuous know-why and knowledge, may be left this invention and the content that stretches thereof, and are carried out enforcement or quote through covert and modification.Characteristics of the present invention and advantage are defined in claims, and the detailed description that is stated from hereinafter comprises the unrestriced content of right.
Brief description
Present invention might sharpen understanding by following explanation and appended drawing, comprising: sign such as figure, literal and symbol its structure, attribute and function.
Fig. 1 is a schematic diagram, has shown the structure of (lamination) AFF capacitor.
Fig. 2 is a schematic diagram, has shown the application of AFF capacitor basic circuit.
Specific embodiment
Be embodiment below, further described content of the present invention, but the present invention and being not limited by the following examples.
This patent is at present to the technology and the technical description of ceramic cell, and the system with AFF powder structure that can be fit to many different parameters performances and type is applied, because it is understood by the personnel of this type of technology on top of easily.
Therefore, though on using, emphasize to utilize following technology and technology can produce AFF capacitor and ceramic cell system, for example: apparatus for storing electrical energy (comprise and make AFM and the compound AFF ceramic powder of FET that mixes or form modification), but same or analogous technology and technology can be used for making the functional material and the application system of other types.
On AFF system prototype architecture basics, the manufacture craft of chip AFF (lamination) capacitor and ceramic cell has been described below.
Can be by the industrialization technology treatment process of a series of maturations, as automatic casting apparatus, automatic screen printing equipment, mixing plant, automatic laminated equipment, cutting apparatus automatically, and etc. corresponding technology step such as static pressure Equipment for Heating Processing and drying equipment, be combined into production line, produce high-quality chip-type laminated cheaply AFF capacitor, process is as follows:
1, slurry preparation is as follows, 1, the AFF powder behind the aluminium oxide parcel, and before making slurry, 1050 ℃ of high-temperature firings have been finished, with the even mixed dielectric slurry of polyimides (PI), the dielectric slurry is made up of AFF powder, a certain proportion of interior insulating material that contains flow promortor, as PI and flow promortor; 2, the electrode slurry of forming with nickel powder, electrode slurry be by electric conducting material, as nickel powder and contain the certain proportion flow promortor and form; 3, the interior insulator slurry of forming with polyimides (PI), interior insulation paste contains a certain proportion of flow promortor by the low-dielectric coefficient and forms.Flow promortor mainly acts on, insulating material powder in assisted oxidation aluminium/AFF/, electrode material powder and insulating material powder are in coating or printing process, make powder keep evenly distributing, and do not react with these powders, it can be organically, as: nitrocotton, glycerine and isopropyl alcohol etc.; Also may be inorganic, as: the auxiliary agent of emulsion type etc.Flow promortor need be controlled certain viscosity, the flowability needs during with suitable printing.Usually in the Technology for Heating Processing afterwards, flow promortor will be vapored away fully.
2, equipment prepare as follows, 1, screen printing electrode template; 2, the template of insulating material in the silk screen printing; 3, be equipped with main production equipment, as comprise casting apparatus, screen printing apparatus, slurry stirring device, laminating apparatus, cutting apparatus waits static pressure Equipment for Heating Processing and drying equipment etc.Be ready for the platform of film coated, notice that this platform should guarantee not and powder, filler and auxiliary agent generation chemical reaction, and be antiseized, wrap up or spray as using materials such as poly-tetrafluoro in direct contact portion.This platform can form the pipeline system of circulation with silk screen printing, oven dry and density enhancing process, enhances productivity.Equally, in the container that various slurries are placed into respectively.All slurries all need mix slurry uniformly by ultrasonic wave and mechanical agitation instrument.Should guarantee these tool usings and container not with powder, filler and auxiliary agent generation chemical reaction or bonding, with the direct contact portion Ke Yong of powder Te Fulong materials such as (Teflon) parcel and spray treatment.The planar surface that is used for the coating coating slurry layer also will spray parcel with materials such as taking Te Fulong and handle.Te Fulong can short-term stand high temperature more than 300 ℃ in long-term work below 200 ℃.
3, manufacturing process: a, use casting apparatus prepare polyimides (PI) film, and filling paste is applied on the curtain coating platform, dry, and the roll set cracking not occur for suitable, form an inner insulating layer; B, use electrode template, electrode slurry be printed onto on polyimides (PI) single-sided film of finishing oven dry, and finish oven dry, the roll set cracking not occur for suitable, forms one protruding in the upper electrode layer of polyimides (PI) layer; C, use casting apparatus to prepare the AFF thin dielectric film, around electrode layer and the filling dielectric slurry of upper strata, and finish oven dry,, forms one and the dielectric layer on upper strata on every side at electrode the roll set cracking not occur for suitable; D, reuse electrode template, electrode slurry be printed onto on the AFF dielectric single-sided film of finishing oven dry, and finish oven dry, the roll set cracking not occur for suitable, form one protruding in the lower electrode layer of dielectric layer; E, on the aspect of steps d, use casting apparatus to prepare the AFF thin dielectric film, around electrode layer and the filling dielectric slurry of upper strata, and finish oven dry, the roll set cracking not occur, form one and the dielectric layer on upper strata on every side at electrode for suitable; F, use casting apparatus prepare polyimides (PI) film, and filling paste is applied on the curtain coating platform, dry, and the roll set cracking not occur for suitable, form an inner insulating layer; From step a-f, finished the AFF capacitor and the ceramic cell cellular system of an individual layer and made like this.
4, after the work of finishing previous step, make N this system unit as need, can repeat the cyclic process from step a to step e more than N time, the AFF composite laminate of N said structure making is added up, last implementation step f obtains AFF capacitor and ceramic cell that N unit superposes.This step can be used laminating apparatus and finish, and the AFF ceramic cell system that finishes N lamination like this is shown in A-A among Fig. 1.
5, after the work of finishing previous step, AFF battery system group is carried out high temperature insostatic pressing (HIP) density handle, according to different application requirements, density index is distinguished to some extent, and therefore, the temperature of hot isostatic apparatus, pressure and time parameter are with different.Parameter area is at 50-300 ℃, 50-150 handkerchief, 10-90 minute.Adopt ladder to preheat technology, the gauge scope of the single AFF system after the processing is respectively: dielectric layer 1.5-20 μ m, packed layer 1.5-20 μ m, electrode layer 1.5-20 μ m.
6, after the work of finishing previous step,, the lamination after these high temperature insostatic pressing (HIP) density processing is cut into block device according to the size of setting.Size is according to being to set according to application requirements.This step can be used accurate cutting equipment and finish.
7, after the work of finishing previous step, necessary processing is carried out on AFF capacitor and battery system (group) termination electrode surface after the cutting, comprising: grind and clean, make termination electrode expose out fully.
8, after the work of finishing previous step, use special fixtures that the positive and negative electrode two ends of AFF capacitor (group) are connected with binding post respectively.Guarantee that this connection is reliable and good conductivity is arranged.
9, after the work of finishing previous step, the two end electrodes of AFF capacitor and battery system (group) is connected respectively to the electrode two ends of electrode initialization apparatus.And put it into according to certain change curve rule, make under the environment of temperature cycles variation, add the bias-voltage that loop cycle changes at the electrode two ends.According to application need, the size of selected on-load voltage, and the time interval of temperature cycle circulation.According to different application requirements, AFF powder polarization index is distinguished to some extent, and therefore, the temperature of initialization voltage equipment, voltage and time parameter are with different.1., temperature, voltage and the time major parameter scope of initial voltage equipment be at-40-300 ℃, 1.0-5000V, 1-30 minute the initial curing process of AFF capacitor comprises; 2., the two end electrodes of AFF capacitor and battery system (group) is connected respectively to the electrode two ends of electrode initialization apparatus, and put it into according to certain change curve rule, make that temperature cycles changes environment under; 3. the positive and negative bias voltage of loading that replaces at the electrode two ends, circulation is more than 5 times; 4., according to the practical application needs, the size of selected on-load voltage, and temperature cycles time interval; 5., in the end after finishing the initial slaking of AFF capacitor, behind affirmation and the mark polarity of electrode, the electric weight in it is put only through load resistance, made product assembling afterwards, transportation under the situations such as displaying, avoids personnel and equipment to be subjected to the influence of shocking by electricity and damaging.
10, after the work of finishing previous step, at the electrode two ends, use the epoxide resin conductive adhesive of high silver content, respectively at the two ends of interior electrode, and be cured connection between the lead terminal, and the AFF battery except that exposed lead terminal head is carried out the encapsulation of complete external insulation.Can use equipment such as automatic or automanual end sealing machine, evener, packaging machine to improve the connection of termination electrode and the quality and the efficient of encapsulation.
11, after the work of finishing previous step,,, carry out the encapsulation of antimagnetic materials such as copper facing in AFF capacitor external insulation package surface according to application need.
Finish said process, promptly finished the making of a chip AFF (lamination) capacitor.Because chip AFF (lamination) capacitor can use a plurality of same device parallel connections, the battery system that the composition capacity is very big.To the shell and the internal fixation terminal of this battery system, draw (leading) line and need adopt and carry out antimagnetic Shielding Design.
Selecting electrode terminal (row), inner lead, and during material such as battery case, for avoiding the influence of magnetization to the magneto-resistor on-off action, should use diamagnetism or paramagnetic material, all be the good anti-/ paramagnetic material of conductivity as gold, silver, lead, zinc, aluminium and copper etc.From economy and environmental angle, aluminium, copper cost are cheaper.
In said process, the AFF battery system of formed any different shape in equipment uses no matter all is the combination of basic AFF powder, electrode and insulation.The expansion of this combination can also be produced, as: matrix form, and the AFF battery system group of circuit form.
Though above summary of the invention is by concrete and clear and definite description, but the variations and modifications of its invention, may in a disguised form be become a kind of technology that can be on top of, thisly be had a mind to contain variations and modifications of the present invention, be belonged to the additional claim of this patent.
Claims (10)
1. a structure and manufacture method that the physical battery of being made up of ceramic capacitor of electric weight latch function is arranged.This battery structure comprises at least: by aluminium oxide/coated AFF powder, and the insulation filling body forms electrode in the thin dielectric rete produce (Fig. 1 1), the plural at least embedding conduction (Fig. 1 2), and interior insulating material (Fig. 1 3); For stacked capacitor, also comprise its termination electrode (Fig. 1 4), terminal or lead-in wire (Fig. 1 5), material shell of outer package insulating material (Fig. 1 6) and anti-magnetic disturbance (Fig. 1 7) etc.;
Its structure and physical features are as follows;
Architectural feature is,
Thin dielectric rete structure, comprising having calcium titanium class inverse ferric magnetosphere (Fig. 1 8) and cubic ferroelectric layer mutually (Fig. 1 9) the compound coated AFF of molecule powder, and wrap up a layer thickness again less than the non-conductive functional metal oxide materials of 10nm (Fig. 1 10), as α-AI at AFF powder superficies
2O
3The secondary coated powder that forms; This powder and interior insulation filling material be according to the mixed of 50: 1 to 99: 1 scopes, and be made into the function based on AFF, and thickness is less than the AFF thin dielectric rete of 10 μ m;
Electrode structure in the conduction is embedded in electrode in the conduction of AFF thin dielectric rete, and its positive and negative two end electrodes is in opposite directions and staggered, and thickness is at the 1-2 mu m range, and inner electrode comprises following a kind of at least: Au, Ni, Al, Ag, Zn, metals such as Cu;
Interior insulating material structure, between about the AFF dielectric layer of the interior electrode of embedding, and except that the termination electrode that exposes, interior insulating material also will be filled in AFF dielectric layer four limits, its material at least mainly comprises following a kind of: devitrified glass, ethylene glycol terephthalate (being called for short PET), polyimide resin, and their derivative etc.;
The stacked capacitor end-electrode structure, adopt special-purpose conducting metal welding material, or high-load Ag go back the oxygen electroconductive resin, respectively two same polarity electrodes with the battery unit two ends of superimposed layer are connected, and respectively with conducting terminal, or contain the clamped nipple that connects conductor leading and connect; Antimagnetic interfering material
The outer package insulating material structure, its material at least mainly comprises following a kind of: epoxide resin, phenolic resins, the PET resin, acrylic resin, polyvinyl resin, or polyimide resin, and their derivative etc., its function is except that external terminal and lead, with battery body and the high electric insulation of extraneous maintenance;
The shell mechanism of antimagnetic interfering material, the shell of capacitor comprises the conducting terminal and the conductor leading of externally drawing, adopt diamagnetism and paramagnetic material, or produce functional diamagnetic coating on the other materials surface, its material at least mainly comprises following a kind of: Au, Ni, Al, Ag, Zn, Cu etc., its function is every magnetic and anti-residual, prevents the adverse effect that cause product in magnetic field;
Physical features is,
By electrode, externally electric field acts on down forward or backwards, and the AFF magnetoresistive ratio is at 50%-10
9Between the %, there is significant resistance to open or close variation characteristic;
1., when charging, under the positive acting of DC charging voltage, by electrode, AFF thin dielectric film resistance suddenly descends, and makes electric charge gather the electrode surface end rapidly, electrical energy storage density significantly increases;
2., when charging is finished, under the acting in opposition of DC charging voltage, (add instantaneous reverse biased), and load resistance Ω is greater than 10
8---when infinitely great, this moment is because the instantaneous increase of magneto-resistor, the electric charge that accumulates in the electrode surface end effectively is blocked in AFF compound molecule structure outside, make the electric charge that accumulates in electrode tip be difficult to fast return, prevented to return fast the generation of leakage phenomenon, and keep, this moment, the AFF capacitor can the longer term storage electric weight, and this is unique electric weight latch function;
3., when discharge, insert load at the electrode two ends, and when load resistance Ω be less than 10
8During extremely near nonzero value, the AFF capacitor will accumulate in the electric charge of electrode surface end, be released through load resistance, and electric charge is zero until between electrode tip;
4., when the working temperature of AFF capacitor and ceramic cell is higher than the critical value of self, its electric weight latch function will lose efficacy;
5., when the working temperature of AFF capacitor and ceramic cell is got back to the critical value of self, redefine polarity through initialization charging; Its electric weight latch function recovers;
If 6. electric current is excessive during charge and discharge, and it is frequent, may cause the lead heating, outside high temperature may be transmitted to AFF capacitor dielectric inside through lead, cause that this layer internal temperature raises, near or when surpassing the technology critical temperature range, this situation will influence its electric weight latch function.When above situation occurring, can take physical method to importing the position of heat, as lead, shell etc. are taked cooling provision;
Usually in the technology critical temperature range of regulation, use according to 1. carrying out repeatedly charge and discharge repetitive cycling to process 3.;
Circuit characteristic is,
1., to plural AFF capacitor (C1, C2 ... Cn) unit can be in parallel, thereby can realize the more jumbo ceramic capacitor group C that a plurality of capacitors form (Fig. 2-a), and apply it to field of batteries;
2., the single channel charging, can rely on charging circuit control (or charger) merely, design the reverse biased function, after finishing when charging, external power source Ua is that AFF capacitor group adds reverse biased, use has approximates infinity auxiliary resistance R ', start the electric weight latch function, illustrate as Fig. 2-b, thereby prevented to return leakage current fast, cause the generation of charging voltage Uaff rapid drawdown phenomenon, in this case, independently magnetic shielding material (entity or coating) is adopted in capacitor devices outside (shell contains terminal lead), can prevent that adjacent capacitor or magnetic field sources from impacting the electric weight latch function of self AFF capacitor;
3., two-way charging, for the ceramic cell structure, can pass through the two-way charging device, two groups are charged simultaneously with parameter AFF capacitor (group) C and C ', after charging finishes, two Battery packs respectively are the other side's reciprocal bias voltage, and use auxiliary resistance R ', start the electric weight latch function, illustrate as Fig. 2-c with approximates infinity, thereby prevented to return leakage current fast, caused the generation of charging voltage Uaff rapid drawdown phenomenon.In this case, can adopt magnetic shielding material (entity or coating), can prevent that adjacent capacitor or magnetic field sources from impacting the electric weight latch function of self AFF capacitor AFF capacitor outside (shell contains terminal lead);
4., when discharge, under AFF capacitor C self voltage U aff effect, electric charge forms the loop through application load R, through overdischarge, along with the capacitor plate electric quantity density reduces gradually, until being zero, illustrates as Fig. 2-d;
5., the resistivity of auxiliary resistance R ' is big more, dielectric constant is low more, can make in the electric weight latch function start-up course, and is more little to the loss of electric weight;
6., this constructed products can long-life work as conventional ceramic capacitor at normal temperatures.
2. claim 1, AFF thin dielectric film wherein, its thickness 1-10 μ m, granular size 0.01-1 mu m range.
3. claim 2, wherein the AFF powder comprises content element at least, calcium titanium class contains the RMnO of rare earth element
3Compound, R comprise the element Y of trivalent, and lanthanide series, calcium titanium class BaTiO
3Powder granule form coated AFF powder, and AFM material periphery has been wrapped up the thick α-AI of one deck 1-10nm
2O
3Aluminium oxide; At α-AI
2O
3Periphery uses molecular level or short grained polyimides (PI) plastics as interior insulator PI filler, guarantees parcel α-AI
2O
3The minimum coverage of filler is the structure of 1-10nm between the AFF particle of metal oxide; Thin layer between the AFF that the interior insulating material PI of dielectric AFF modified powder and low-dielectric constant constitutes, its composition packing ratio is between 72: 28 to 55: 45.
4. claim 1, wherein the inner electrode particle is in the 30-300 nanometer range, comprise at least use following a kind of, Au, Ag, Ni, Al, Cu, the solid content thickness after the coating oven dry is at 1-2 μ m; The termination electrode material comprises that at least use is following a kind of, Au, and Ag, Ni, Al, Cu can use the expediting setting type epoxide resin that mixes the high-load silver metal, or is exclusively used in the welding material of corresponding metal.
5. claim 1, wherein the outer insulator material can use the expediting setting type epoxide resin, and thickness is mainly just determined by the applied voltage of battery.
6. ultra-fine nickel powder and copper powder can be accomplished 200nm even littler granularity, and their fail safe is better than aluminium, but will use inert gas in slurrying, preservation and coating process, prevent that they are oxidized.
7. claim 1, main technique flow process wherein, at least comprise following technology, adopt casting technique to make inner insulating layer, adopt silk-screen printing technique to make electrode layer, adopt casting technique to make the AFF dielectric layer, adopt stack and processing of cutting, staged high temperature insostatic pressing (HIP) density is handled, and termination electrode cleans and makes the outer insulating material packaging technology, temperature is between the service area is critical above surpass, under loading, replace under the external voltage condition the initial curing process of AFF capacitor of cycle charge-discharge.
8. claim 1, wherein the magneto-resistor electrical resistivity range 10 of AFF thin dielectric film
1-10
9Ω m, interior insulating material is as polyimides (PI) electrical resistivity range 10
9-10
19Ω m.
9. claim 1, wherein density index is distinguished to some extent, and therefore, the temperature of hot isostatic apparatus, pressure and time parameter are with different.Parameter area is at 50-300 ℃, 50-150 handkerchief, 10-90 minute.Adopt the ladder heating process.
10. claim 7,1., temperature, voltage and the time major parameter scope of initialization voltage equipment be at-40-300 ℃, 1.0-5000V, 1-30 minute wherein the initial curing process of AFF capacitor comprises; 2., the two end electrodes of AFF capacitor and battery system (group) is connected respectively to the electrode two ends of electrode initialization apparatus, and put it into according to certain change curve rule, make that temperature cycles changes environment under, the positive and negative bias voltage of loading that replaces at the electrode two ends, circulation is more than 5 times; 3., according to the practical application needs, the size of selected on-load voltage, and temperature cycles time interval; 4., in the end after finishing the initial slaking of AFF capacitor, behind affirmation and the mark polarity of electrode, the electric weight in it is put through load resistance only.
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| CN105632775A (en) * | 2014-10-08 | 2016-06-01 | 陈小辉 | Super battery |
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| WO2017128751A1 (en) * | 2016-01-27 | 2017-08-03 | 京东方科技集团股份有限公司 | Power source assembly and electronic device |
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| CN105632775A (en) * | 2014-10-08 | 2016-06-01 | 陈小辉 | Super battery |
| CN105632775B (en) * | 2014-10-08 | 2018-05-04 | 陈小辉 | Superbattery |
| CN105656211A (en) * | 2014-11-15 | 2016-06-08 | 陈小辉 | Multidimensional super physical battery |
| CN105656211B (en) * | 2014-11-15 | 2018-07-06 | 陈小辉 | Multidimensional ultra physical battery |
| CN104992837A (en) * | 2015-07-21 | 2015-10-21 | 苏州电力电容器有限公司 | Composite substrate applied to quasi Faraday super capacitors and making method and application thereof |
| WO2017128751A1 (en) * | 2016-01-27 | 2017-08-03 | 京东方科技集团股份有限公司 | Power source assembly and electronic device |
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