CN104701025A - High-power annular energy storage battery - Google Patents
High-power annular energy storage battery Download PDFInfo
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- CN104701025A CN104701025A CN201510079965.9A CN201510079965A CN104701025A CN 104701025 A CN104701025 A CN 104701025A CN 201510079965 A CN201510079965 A CN 201510079965A CN 104701025 A CN104701025 A CN 104701025A
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- annular wall
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- 238000004146 energy storage Methods 0.000 title claims abstract description 35
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 52
- 238000000605 extraction Methods 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 229910052797 bismuth Inorganic materials 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 150000001768 cations Chemical class 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- 150000001340 alkali metals Chemical class 0.000 claims description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 3
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052787 antimony Inorganic materials 0.000 claims description 3
- 229910052788 barium Inorganic materials 0.000 claims description 3
- 229910052792 caesium Inorganic materials 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 229910052738 indium Inorganic materials 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 229910052701 rubidium Inorganic materials 0.000 claims description 3
- 229910052712 strontium Inorganic materials 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 238000003487 electrochemical reaction Methods 0.000 abstract description 7
- 239000010405 anode material Substances 0.000 abstract 2
- 239000010406 cathode material Substances 0.000 abstract 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 14
- 239000011734 sodium Substances 0.000 description 14
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 4
- 229910001415 sodium ion Inorganic materials 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000007772 electrode material Substances 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 3
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
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- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- RZJQYRCNDBMIAG-UHFFFAOYSA-N [Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Zn].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn] Chemical class [Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Zn].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn] RZJQYRCNDBMIAG-UHFFFAOYSA-N 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
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- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
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- 238000009413 insulation Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/10—Multiple hybrid or EDL capacitors, e.g. arrays or modules
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
- H01G11/28—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collector; Layers or phases between electrodes and current collectors, e.g. adhesives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
- H01G11/56—Solid electrolytes, e.g. gels; Additives therein
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
-
- 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
- Y02E60/13—Energy storage using capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
Abstract
The invention discloses a high-power annular energy storage battery. The high-power annular energy storage battery comprises several layers of annular walls which are coaxially sleeved together and made of solid electrolyte, the ends of the annular walls are fixed on an insulating round pedestal while the other ends are fixed on a round upper cover, all the annular walls, round pedestal and round upper cover jointly form several layers of closed cavities sleeved together, anode material and cathode material alternatively fill the spaces between adjacent closed cavities at intervals, and when the battery runs, both the anode material and cathode material are in the liquid state; anode current and cathode current are led from the bottoms of the closed cavities and respectively gathered to form an anode and a cathode of the battery. The high-power annular energy storage battery has large electro-chemical reaction area and current flow area and good electronic conductivity; the high-power annular energy storage battery is capable of providing a large enough current density to guarantee a high enough charging/discharging speed rate and power, and moreover, the high-power annular energy storage battery is simple in structure, low in cost, capable of confirming size parameters according to different capacity requirements, easy to expand scale and capable of meeting different capacity and space requirements.
Description
Technical field
The invention belongs to energy storage field, what be specifically related to is a kind of high-power annular energy-storage battery.
Background technology
Along with the rapid lifting of China's economic total volume, energy form is also more and more severeer, how effectively to make good use of the important content that existing energy production capacity has become Energy restructuring.Under the background of building intelligent grid energetically, promote the quality of power supply extremely urgent, and as an important indicator of the quality of power supply, the stability of mains frequency is related to the every aspect of national product, more represents the adjustment capability of electrical network opposing load impact.Have significantly load variations time, in order to electric power grid frequency stabilization, to electrical network input or absorb large energy to offset large load fluctuation from electrical network within the shortest time, thus make the frequency stabilization of electrical network a controlled scope, namely realize the frequency-modulating process of electrical network.In this process, the most key is how to export within the shortest time or to absorb a large amount of energy, and this needs enough powerful energy storage device, is generally flywheel energy storage or ultracapacitor.
On the other hand, along with the appearance of the high-new armament equipment in the fields such as military affairs, space flight, as magnetic artillery etc., need ultracapacitor etc. and can discharge the energy storage device of large energy at short notice as support.
But flywheel energy storage is due to the restriction of its physics energy storage mode, and stored energy capacitance is very little, and energy loss can not be ignored; Owing to there are technology barriers in ultracapacitors etc., manufacturing cost is high.So, use based on chemical reaction, scale is very easily expanded, it is apparent as the advantage of energy storage device to respond novel battery rapidly, this needs the charge-discharge electric power of novel battery super existing all batteries far away, can discharge a large amount of energy in a short period of time.On the other hand, from functional, this novel battery can be regarded as another capacity ultracapacitor extendible, with low cost completely.But yet there are no the relevant report of the energy-storage battery of this super high power based on chemical reaction.
Summary of the invention
The object of the present invention is to provide a kind of high-power annular energy-storage battery, this battery has great charge-discharge electric power, can be used as ultracapacitor and uses.
For achieving the above object, the technical solution used in the present invention is:
A kind of high-power annular energy-storage battery, comprise the some layers of coaxial package annular wall be made up of solid electrolyte together, the bottom of annular wall is fixed on cup dolly, and the top of annular wall is fixed on circular upper cover, and cup dolly and circular upper cover are made by isolation material; All annular wall and cup dolly and circular upper cover surround the airtight cavity that some layers are set in together jointly, positive electrode or negative material is all filled with in all airtight cavities, the airtight cavity being wherein filled with positive electrode is positive electrode chamber, the airtight cavity being filled with negative material is negative material chamber, and the spaced setting in positive electrode chamber and negative material chamber; The bottom in positive electrode chamber is provided with positive electrode current extraction pole, positive electrode current extraction pole stretches out cup dolly and also understands integrated anode outward, the bottom in negative material chamber is provided with cathodal current extraction pole, and cathodal current extraction pole stretches out cup dolly and also understands integrated battery cathode outward; Wherein positive electrode is inert metal, and negative material is active alkali metal or alkaline-earth metal, and under the operating temperature of battery, positive electrode and negative material are liquid state.
Described positive electrode is a kind of or several arbitrarily mixture in Al, Zn, Ga, Cd, In, Sn, Sb, Te, Hg, Ti, Pb, Bi; Negative material is a kind of or several arbitrarily mixture in Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba; Solid electrolyte is the good conductor of the metal cation of negative material.
Described positive electrode chamber and the filling rate in negative material chamber are all less than 50%.
The thickness of described annular wall is 3 ~ 5mm.
Described positive electrode current extraction pole and cathodal current extraction pole are stainless steel substrates.
The diameter of outermost annular wall is identical with the diameter of circular upper cover with cup dolly.
The ratio of the height of this battery and its diameter is less than 1.
Relative to prior art, beneficial effect of the present invention is:
The invention provides the high-power annular energy-storage battery that a kind of charge-discharge electric power is very big, can be used as ultracapacitor, frequency modulation and the military space technology of electrical network can be applied to.This battery designs for multi-layer annular, there is very unique battery structure, except outermost annular wall, the both sides of all the other annular wall are distributed with positive electrode and the negative material of battery respectively, therefore these annular wall (solid electrolyte) are all the reaction surfaces of electrochemical reaction, so this battery has enough large electrochemical reaction area, this makes the area of current flowing very large.And electrode reaction is at high temperature carried out, during operation, both positive and negative polarity is liquid metal, has very excellent electronic conduction, can reach enough large current density, and therefore the charge-discharge electric power of this battery can be very large.This battery can be determined by different capacity requirement to be easy to many covers dimensional parameters of distributing in proportion carry out popularization, can to meet different capacity and space requirement in addition.Battery provided by the invention can either have larger current density can have again enough current flowing areas, ensure that sufficiently high charge-discharge velocity and power, and structure is simple, with low cost, is particularly suited for the high energy such as power grid frequency modulation and magnetic artillery weapon and uses.
Further, in high-power annular energy-storage battery provided by the invention, the filling rate in positive electrode chamber and negative material chamber is all less than 50%, can ensure just, just have enough spaces to hold in negative material chamber, negative material has reacted the product of rear generation, avoid the material volume owing to causing in course of reaction change and cause to annular wall, the extruding of cup dolly and circular upper cover, thus avoid the stressed rear breakage of annular wall just to cause, the battery capacity loss that negative material is mixed mutually and bring, avoid battery generation bulge or just simultaneously, negative material reveal the battery use safety that causes and useful life problem.
Further, in high-power annular energy-storage battery provided by the invention, under the prerequisite ensureing support strength, make the thickness of annular wall little as far as possible, be preferably 3 ~ 5mm, thus the good ion guide general character can be ensured, polarization loss during reduction battery operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of annular energy-storage battery provided by the invention (Na ‖ Bi);
Fig. 2 is the schematic cross section of annular energy-storage battery provided by the invention (Na ‖ Bi);
Fig. 3 is the alloy phase diagram of Na-Bi reaction system;
Fig. 4 is the runnability curve chart of 3kW provided by the invention annular energy-storage battery (Na ‖ Bi).
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details.
Participate in Fig. 1 and Fig. 2, high-power annular energy-storage battery provided by the invention, comprise the some layers of coaxial package annular wall 2 be made up of solid electrolyte together, the bottom of annular wall 2 is fixed on cup dolly 3, the top of annular wall 2 is fixed on circular upper cover 1, and the diameter of outermost annular wall 2 is identical with the diameter of circular upper cover 1 with cup dolly 3.Under the prerequisite ensureing support strength, make the thickness of annular wall 2 little as far as possible, be preferably 3 ~ 5mm.Cup dolly 3 and circular upper cover 1 are made by isolation material.Adjacent two layers annular wall 2 surrounds the airtight cavity of annular with cup dolly 3 and circular upper cover 1, the annular wall 2 of innermost layer surrounds columniform airtight cavity with cup dolly 3 and circular upper cover 1, positive electrode or negative material is filled with in airtight cavity, the airtight cavity being wherein filled with positive electrode is positive electrode chamber 8, the airtight cavity being filled with negative material is negative material chamber 9, and positive electrode chamber 8 and interval, negative material chamber 9 are arranged; The filling rate in positive electrode chamber 8 and negative material chamber 9 is less than 50%.The bottom in positive electrode chamber 8 is provided with positive electrode current extraction pole 4, it is outer and accumulate anode 5 that positive electrode current extraction pole 4 stretches out cup dolly 3, the bottom in negative material chamber 9 is provided with cathodal current extraction pole 6, and it is outer and accumulate battery cathode 7 that cathodal current extraction pole 6 stretches out cup dolly 3.Positive electrode current extraction pole 4 and cathodal current extraction pole 6 are stainless steel thin slice.The height (height of annular wall 2) of this battery and the ratio of its diameter (diameter of outermost layer annular wall 2) are less than 1, and namely the height of annular wall 2 is less than the diameter of outermost layer annular wall 2.
The basic electrochemical reaction of this battery is the process of a kind of alloying and de-alloying, and positive electrode is inert metal, as a kind of or several arbitrarily mixture in Al, Zn, Ga, Cd, In, Sn, Sb, Te, Hg, Ti, Pb, Bi; Negative material is active alkali metal or alkaline-earth metal, as a kind of or several arbitrarily mixture in Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba; Solid electrolyte is the good conductor of the metal cation of negative material, is generally corresponding cationic solid electrolyte.Electrode reaction is at high temperature carried out, and under the operating temperature of battery, positive electrode and negative material are liquid state, i.e. liquid metal, there is very excellent electronic conduction, allow enough large current density, for liquid metal lithium, its current density that can reach is up to 1.2A/cm
2.
This battery designs for multi-layer circular, has enough large electrochemical reaction area.Due to the structure of its uniqueness, electrochemical reaction area is very large, and this makes the area of current flowing very large, and consider the high current density that electrode material can arrive, the charge-discharge electric power of this battery can be very large.And the design of this cell apparatus can determine the many covers dimensional parameters distributed in proportion by different capacity requirement, be easy to carry out popularization, can meet different capacity and space requirement.
For the ease of better understanding the present invention, below for Na ‖ Bi battery, provide a specific embodiment of the present invention.
As shown in Figure 1, 2, this Na ‖ Bi battery is annular Multi-layer design, by solid electrolyte form have different-diameter, (diameter is at 30cm ~ 60cm to be distributed in one piece of cup dolly 3 with one heart for the annular wall 2 (being highly 20cm ~ 50cm) of certain thickness and height, identical with outermost annular wall outer circumference diameter) on, this cup dolly 3 is isolation material, with annular wall 2 fit sealing of 5 ~ 10 different-diameters, usually be sintered together with the material of pottery, or realize in the gluing mode that insulate.The top of annular wall 2 and circular upper cover 1 fit sealing, circular upper cover 1 is isolation material, is usually sintered together with the material of pottery, or realizes in the gluing mode that insulate.Between adjacent two-layer annular wall, interval is full of positive electrode or negative material, positive and negative pole material space crossings distributes, and be furnished with positive and negative electrode electric current extraction pole in bottom part, be generally and stablize erosion-resisting stainless steel thin slice, tightening seal is connected on cup dolly 3, and press both positive and negative polarity kind extraction junction, be the both positive and negative polarity of battery.
The negative material of this battery is Na metal dust, and positive electrode is Bi metal dust, and solid electrolyte is the βAl2O3 that sodium ion is corresponding.The optimum working temperature (ensureing high ionic mobility) of the temperature (both positive and negative polarity electrode material need be molten into liquid state completely) that the operating temperature of this battery is needed by electrode reaction and solid electrolyte corresponding to negative material cation determines jointly.As Na-Bi reaction system, see Fig. 3.From phasor, when temperature is higher than 444 DEG C, Na and Bi complete reaction generates solid phase Na
3bi, reaction equation is 3Na+Bi → Na
3bi; When temperature lower than 444 DEG C higher than 271 DEG C (fusing point of Bi) time, Na and Bi complete reaction generate solid phase NaBi, reaction equation is Na+Bi → NaBi.Consider that βAl2O3 solid electrolyte has best sodium ion conduction between 300 DEG C ~ 350 DEG C, on the other hand, higher than the problem bringing a lot of hot environment lower seal and insulation under the high temperature of 444 DEG C, therefore the operating temperature of this cell apparatus is decided to be 300 DEG C ~ 350 DEG C, electrochemical reaction is Na+Bi → NaBi.
In addition, each is the outer circumference diameter distribution of the annular wall 2 of distribution and gap (positive electrode chamber and the negative material chamber) volume that highly determines between them with one heart, interstitial volume is again the key parameter of the loading determining positive and negative pole material, and under the prerequisite ensureing physical support intensity, solid electrolyte thickness is little as much as possible.Therefore the thickness of annular wall is preferably 3 ~ 5mm, to ensure the good ion guide general character, and polarization loss during reduction battery operation.As Na-Bi reaction system, determine that the mol ratio of positive and negative pole material complete reaction is 1:1, ideally, after reaction, negative material sodium moves in the gap at positive electrode Bi place completely, NaBi solid phase alloy is generated with Bi, now need to ensure that the volume in positive electrode chamber is large enough to hold the maximum among the volume of pure Bi and the volume of NaBi, the volume in negative material chamber is large enough to hold the volume of pure Na.For certain interstitial volume, after determining the annular wall height of battery, the outer circumference diameter distribution of each annular wall distributed with one heart can be determined, the Ratio control of general cell height and cell diameter is in the scope being less than 1.So, after determining certain battery capacity parameters, namely by the consumption of electrode material determine battery concrete dimensional parameters.
In order to verify the concrete Practical Performance of this large power energy storage battery, making the cell apparatus based on Na-Bi reaction system, and having put into operation.Cell diameter is 200mm ~ 300mm, and height is 150mm ~ 200mm; Output-current rating 200A, capacity 200Ah ~ 400Ah, output voltage 0.6V, rated output power reaches 120W, is that tens times of conventional monomer energy-storage battery power output arrive hundred times.As shown in Figure 4, this large power energy storage battery experience close to 500 charge and discharge cycles after still energy efficiency higher than 75%, and the average power of discharge and recharge is almost without any the runnability that decay is stable, this shows that this battery has highly stable cycle performance while possessing high-power discharge and recharge feature, has very high cycle life.
Claims (7)
1. a high-power annular energy-storage battery, it is characterized in that: comprise the some layers of coaxial package annular wall (2) be made up of solid electrolyte together, the bottom of annular wall (2) is fixed on cup dolly (3), the top of annular wall (2) is fixed on circular upper cover (1), and cup dolly (3) and circular upper cover (1) are made by isolation material; All annular wall (2) and cup dolly (3) and circular upper cover (1) surround the airtight cavity that some layers are set in together jointly, positive electrode or negative material is all filled with in all airtight cavities, the airtight cavity being wherein filled with positive electrode is positive electrode chamber (8), the airtight cavity being filled with negative material is negative material chamber (9), and positive electrode chamber (8) and negative material chamber (9) spaced setting; The bottom in positive electrode chamber (8) is provided with positive electrode current extraction pole (4), positive electrode current extraction pole (4) stretches out cup dolly (3) the also integrated anode of meeting (5) outward, the bottom in negative material chamber (9) is provided with cathodal current extraction pole (6), and cathodal current extraction pole (6) stretches out cup dolly (3) the also integrated battery cathode of meeting (7) outward; Wherein positive electrode is inert metal, and negative material is active alkali metal or alkaline-earth metal, and under the operating temperature of battery, positive electrode and negative material are liquid state.
2. high-power annular energy-storage battery according to claim 1, is characterized in that: described positive electrode is a kind of or several arbitrarily mixture in Al, Zn, Ga, Cd, In, Sn, Sb, Te, Hg, Ti, Pb, Bi; Negative material is a kind of or several arbitrarily mixture in Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba; Solid electrolyte is the good conductor of the metal cation of negative material.
3. high-power annular energy-storage battery according to claim 1, is characterized in that: described positive electrode chamber (8) and the filling rate of negative material chamber (9) are all less than 50%.
4. high-power annular energy-storage battery according to claim 1, is characterized in that: the thickness of described annular wall (2) is 3 ~ 5mm.
5. high-power annular energy-storage battery according to claim 1, is characterized in that: described positive electrode current extraction pole (4) and cathodal current extraction pole (6) are stainless steel substrates.
6. high-power annular energy-storage battery according to claim 1, is characterized in that: the diameter of outermost annular wall (2) is identical with the diameter of circular upper cover (1) with cup dolly (3).
7. high-power annular energy-storage battery according to claim 1, is characterized in that: the ratio of the height of this battery and its diameter is less than 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510079965.9A CN104701025B (en) | 2015-02-13 | 2015-02-13 | A kind of high-power annular energy-storage battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510079965.9A CN104701025B (en) | 2015-02-13 | 2015-02-13 | A kind of high-power annular energy-storage battery |
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| Publication Number | Publication Date |
|---|---|
| CN104701025A true CN104701025A (en) | 2015-06-10 |
| CN104701025B CN104701025B (en) | 2017-08-15 |
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| CN201510079965.9A Active CN104701025B (en) | 2015-02-13 | 2015-02-13 | A kind of high-power annular energy-storage battery |
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| CN103872007A (en) * | 2012-12-17 | 2014-06-18 | 富士通半导体股份有限公司 | Capacitive element, capacitor array, and a/d converter |
| CN104124459A (en) * | 2014-07-22 | 2014-10-29 | 西安交通大学 | Square liquid metal battery device and assembling method thereof |
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| GB794970A (en) * | 1953-12-24 | 1958-05-14 | Corson G & W H | Electric current-producing cell and method of producing current using the same |
| CN202395058U (en) * | 2011-12-16 | 2012-08-22 | 深圳市雄韬电源科技股份有限公司 | Annular battery |
| CN103872007A (en) * | 2012-12-17 | 2014-06-18 | 富士通半导体股份有限公司 | Capacitive element, capacitor array, and a/d converter |
| CN104124459A (en) * | 2014-07-22 | 2014-10-29 | 西安交通大学 | Square liquid metal battery device and assembling method thereof |
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