CN103531856B - A kind of cathode of sodium-sulfur cell - Google Patents
A kind of cathode of sodium-sulfur cell Download PDFInfo
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- CN103531856B CN103531856B CN201310485934.4A CN201310485934A CN103531856B CN 103531856 B CN103531856 B CN 103531856B CN 201310485934 A CN201310485934 A CN 201310485934A CN 103531856 B CN103531856 B CN 103531856B
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- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000000919 ceramic Substances 0.000 claims abstract description 88
- 239000003792 electrolyte Substances 0.000 claims abstract description 76
- 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 claims abstract description 73
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 73
- 239000011734 sodium Substances 0.000 claims abstract description 73
- 238000003860 storage Methods 0.000 claims abstract description 42
- 230000009172 bursting Effects 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000009413 insulation Methods 0.000 claims abstract description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011241 protective layer Substances 0.000 claims abstract description 11
- 239000005864 Sulphur Substances 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 10
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 229920000914 Metallic fiber Polymers 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000004146 energy storage Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 229910001415 sodium ion Inorganic materials 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
- H01M10/39—Accumulators not provided for in groups H01M10/05-H01M10/34 working at high temperature
- H01M10/3909—Sodium-sulfur cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/138—Primary casings; Jackets or wrappings adapted for specific cells, e.g. electrochemical cells operating at high temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of cathode of sodium-sulfur cell in chemical energy storage field, comprise electrolyte ceramics pipe; Described electrolyte ceramics caliber forms anode chamber to the inside, the end face of described electrolyte ceramics pipe is provided with radially outward outstanding ceramic insulation ring, the bursting tube being provided with storage sodium pipe in described anode chamber and being socketed in outside described storage sodium pipe, the top of described storage sodium pipe is closed by negative pole seal cover, be provided with negative pole sealing ring between described ceramic insulation ring and described negative pole seal cover, described anode chamber is closed; Be provided with between the bottom of described bursting tube outer wall and the bottom of described electrolyte ceramics inside pipe wall and insulate and the nonwettable resilient coating of liquid towards sodium, the bottom of described electrolyte ceramics pipe outer wall is provided with insulation and to sulphur and the nonwettable bottom protective layer of sodium polysulfide.Its technique effect is: the while of not participating in reaction bottom protection electrolyte ceramics pipe, reduce the requirement to electrolyte ceramics pipe perpendicularity and bottom circularity.
Description
Technical field
The present invention relates to a kind of cathode of sodium-sulfur cell in chemical energy storage field.
Background technology
As shown in Figure 1, cathode of sodium-sulfur cell comprises electrolyte ceramics pipe 4, forms anode chamber 400 in electrolyte ceramics pipe 4.Be provided with bursting tube 8 and storage sodium pipe 9 in anode chamber 400, bursting tube 8 is socketed in the outside of storage sodium pipe 9.The bottom of storage sodium pipe 9 is provided with through hole 91, and top and the anode chamber 400 of storage sodium pipe 9 are closed by negative pole seal cover 11.The end face of electrolyte ceramics pipe 4 is provided with radially outward outstanding ceramic insulation ring 3.
The core component of sodium-sulphur battery is electrolyte ceramics pipe 4, and electrolyte ceramics pipe 4 is by β "-Al2O3 makes, its conducts sodium ions, doublely makees barrier film.Sodium-sulphur battery cycle life depends on the capability and performance of electrolyte ceramics pipe 4 to a great extent.Once electrolyte ceramics pipe 4 has micro-crack or breaks, sodium and sulphur directly contact generation vigorous reaction, and temperature reaches as high as 2000 DEG C, and all component in instant melting sodium-sulphur battery causes active material to leak.Existing cathode of sodium-sulfur cell employing is socketed and differs larger bursting tube 8 with electrolyte ceramics pipe 4 coefficient of expansion between electrolyte ceramics pipe 4 with storage sodium pipe 9, bursting tube 8 is made up of aluminum or aluminum alloy usually, radial clearance 401 between bursting tube 8 and electrolyte ceramics pipe 4 inwall, the width control system of radial clearance 401 is at 100 microns, when after electrolyte ceramics pipe 4 breakage, bursting tube 8 axial expansion is close to the inwall of electrolyte ceramics pipe 4, and give the inwall of the bottom of electrolyte ceramics pipe 4 with pressure, this pressure is greater than the pressure suffered by electrolyte ceramics pipe 4 bottom outer wall, simultaneously, bursting tube 8 also radial expansion, radial clearance 401 between bursting tube 8 and electrolyte ceramics pipe 4 closes, sodium cannot contact with sulphur.The cathode of sodium-sulfur cell of such design is for the perpendicularity of electrolyte ceramics pipe 4, and the circularity bottom electrolyte ceramics pipe 4 requires higher, and therefore processing electrolyte ceramics pipe 4 wastes time and energy, and electrolyte ceramics pipe 4 in use very easily damages simultaneously.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art; a kind of cathode of sodium-sulfur cell is provided; while it can not participate in reaction bottom protection electrolyte ceramics pipe; reduce the requirement to electrolyte ceramics pipe perpendicularity and bottom circularity; extend the useful life of electrolyte ceramics pipe, ensure the safe operation of sodium-sulphur battery.
A kind of technical scheme realizing above-mentioned purpose is: a kind of cathode of sodium-sulfur cell, comprises electrolyte ceramics pipe; Described electrolyte ceramics caliber forms anode chamber to the inside, the end face of described electrolyte ceramics pipe is provided with radially outward outstanding ceramic insulation ring, the bursting tube being provided with storage sodium pipe in described anode chamber and being socketed in outside described storage sodium pipe, the top of described storage sodium pipe is closed by negative pole seal cover, be provided with negative pole sealing ring 7 between described ceramic insulation ring and described negative pole seal cover, described anode chamber is closed;
Be provided with between the bottom of described bursting tube outer wall and the bottom of described electrolyte ceramics inside pipe wall and insulate and the nonwettable resilient coating 5 of liquid towards sodium, the bottom of described electrolyte ceramics pipe outer wall is provided with insulation and to sulphur and the nonwettable bottom protective layer of sodium polysulfide.
Further, described resilient coating be adopt in zirconia, silicon nitride, alumina powder or carbon dust any one or multiple, described bottom protective layer adopts alumina silicate fibre.
Further, be provided with gap filling layer in the radial clearance between described bursting tube and described electrolyte ceramics pipe, described gap filling layer is weaved into by metallic fiber, and the porosity of described gap filling layer is 30 ~ 50%.
Further, the bottom of described storage sodium pipe is provided with through hole and filter course, described filter course by or stainless fibrage become.
Further, the bottom of described storage sodium pipe and described bursting tube is rectangular base.
Further, the end face of described bursting tube is higher than the end face of described electrolyte ceramics pipe.
Further, all protective gas is filled with in described storage sodium pipe.
Further, the protective gas in described storage sodium pipe is nitrogen or argon gas.
Have employed the technical scheme of a kind of cathode of sodium-sulfur cell of the present invention; namely in cathode of sodium-sulfur cell; arrange between the bottom of bursting tube outer wall and the bottom of electrolyte ceramics inside pipe wall and insulate and the nonwettable resilient coating of liquid towards sodium, insulation is set in the bottom of electrolyte ceramics pipe outer wall and technical scheme to sulphur and the nonwettable bottom protective layer of sodium polysulfide.Its technique effect is: the while of not participating in reaction bottom protection electrolyte ceramics pipe, reduce the requirement to electrolyte ceramics pipe perpendicularity and bottom circularity, extend the useful life of electrolyte ceramics pipe, ensure the safe operation of sodium-sulphur battery.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art sodium-sulphur battery.
Fig. 2 is the structural representation of a kind of cathode of sodium-sulfur cell of the present invention.
Embodiment
Refer to Fig. 2, the present inventor, in order to understand technical scheme of the present invention better, below by embodiment particularly, and is described in detail by reference to the accompanying drawings:
Refer to Fig. 2, a kind of cathode of sodium-sulfur cell of the present invention, comprises electrolyte ceramics pipe 4, forms anode chamber 400 in electrolyte ceramics pipe 4.
Bursting tube 8 and storage sodium pipe 9 is provided with in anode chamber 400.The top of storage sodium pipe 9 is welded with negative pole seal cover 11, thus is closed by storage sodium pipe 9.Bursting tube 8 is socketed in the outside of storage sodium pipe 9.
The end face of electrolyte ceramics pipe 4 is fixed with radially outward outstanding ceramic insulation ring 3, is provided with negative pole sealing ring 7 between the end face of negative pole seal cover 11 and ceramic insulation ring 3, anode chamber 400 is closed.
The effect of storage sodium pipe 9 is storing liquid sodium, the austenitic stainless steel that storage sodium pipe 9 can adopt welding performance and rigidity all good, and negative pole seal cover 11 also adopts austenitic stainless steel, and the top of storage sodium pipe 9 is welded with negative pole seal cover 11.The bottom of storage sodium pipe 9 adopts rectangular base.The bottom of storage sodium pipe 9 is provided with through hole 91.The diameter 0.3-1mm of through hole 91, to flow to the flow velocity of bursting tube 8 from storage sodium pipe 9 in order to limit Liquid Sodium.In order to ensure to store up the intensity of sodium pipe 9 and the safe operation of sodium-sulphur battery, the wall thickness 0.8-1.5mm of storage sodium pipe 9.
Bursting tube 8 is socketed in the outside of storage sodium pipe 9, and bursting tube 8 adopts fine aluminium or wrought aluminium alloy, adopts cold drawn method to obtain, wall thickness 0.5-1mm, to ensure its intensity.Its role is to by sulphur content liquid in the Liquid Sodium in storage sodium pipe 9 and cathode chamber from.The internal diameter of bursting tube 8 is greater than the external diameter 0.6 ~ 1.2mm of storage sodium pipe 9, to control the amount of Liquid Sodium in bursting tube 8, thus ensures the safe operation of sodium-sulphur battery.Meanwhile, radial clearance 401 is provided with between bursting tube 8 and electrolyte ceramics pipe 4 radial direction.The width of radial clearance is 100 ~ 120 microns.In addition on the one hand, the end face of bursting tube 8 is higher than the end face of electrolyte ceramics pipe 4, and preferred mode is the end face higher than ceramic insulation ring 3, to stop when ceramic insulating tube 4 breaks, Liquid Sodium infiltrates cathode chamber from the top of electrolyte ceramics pipe 4, reacts with the sulphur in cathode chamber.
Because the bottom of bursting tube 8 is rectangular base, and the bottom of electrolyte ceramics pipe 4 is hemispheric, therefore, will arrange resilient coating 5 between the inwall bottom the bottom of bursting tube 8 and ceramic electrolysis tube 4.The material such as adopted zirconia, silicon nitride, alumina powder, carbon dust of resilient coating 5, these materials can not with Liquid Sodium generation chemical reaction, liquid towards sodium does not infiltrate, and insulation property are good.The effect of resilient coating 5 is bottom protection electrolyte ceramics pipe 4; reduce bursting tube 8 for the pressure bottom electrolyte ceramics pipe 4; reduce the quality of the sodium of the participation reaction in anode chamber 400 simultaneously, prevent from participating in reaction bottom electrolyte ceramics pipe 4, guarantee the fail safe bottom electrolyte ceramics pipe 4.And the requirement reduced for electrolyte ceramics pipe 4 perpendicularity and bottom circularity.
Meanwhile, the bottom of storage sodium pipe 9 is also provided with filter course 92, and filter course 92 is mainly formed by weaving metallic fibers, particularly soft 304 or 316L stainless steel fibre braiding, metallic fiber diameter 8-20 micron.Filter course 92 effect is the high-melting-point contaminant particles in filter liquid state sodium, such as sodium carbonate particulate, and non-motlten metal sodium particulate etc., prevent through hole 91 blocked, and prevent these particles from entering radial clearance 401 between bursting tube 8 and electrolyte ceramics pipe 4, and then cause this radial clearance 401 blocked, ensure the radial clearance 401 between the smooth and easy inflow bursting tube 8 of Liquid Sodium and electrolyte ceramics pipe, thus prevent sodium-sulphur battery because electrolyte ceramics pipe 4 lost efficacy because can not get the supply of sufficient Liquid Sodium.
Filter course 92 in storage sodium pipe 9 has loose structure, and the aperture of this loose structure is less than 10 μm, in case the particulate that tablet footpath is greater than 10 μm enters this radial clearance 401, affects closing of this radial clearance 401.
In radial clearance 401, be also filled with gap filling layer 13, gap filling layer 13 is by metallic fiber, and especially soft 304 or 316L stainless steel fibre weave.The porosity of gap filling layer 13 is 30-50%.Gap filling layer 13 liquid towards sodium has suction-operated, simultaneously, due to the Liquid Sodium in the radial clearance 401 that the Liquid Sodium of participating in reaction is only between the inwall of electrolyte ceramics pipe 4 and bursting tube 8 outer wall, therefore the suction-operated of gap filling layer 13 can also reduce the Liquid Sodium amount participating in reaction, thus the temperature effectively controlling sodium-sulphur battery when electrolyte ceramics pipe 4 breaks or generates micro-crack is below 600 DEG C.
Meanwhile, the bottom of electrolyte ceramics pipe 4 outer wall is provided with bottom protective layer 10, and its thickness d 3 is 10 ~ 30mm.The Main Function of bottom protective layer 10 is the electrochemical reactions stoping the bottom of electrolyte ceramics pipe 4 that Liquid Sodium and liquid sulfur occur, and bottom protective layer 10 can adopt insulation property outstanding, and to sulphur or the nonwettable inorganic refractory fiber material of sodium polysulfide.The preferred material of bottom protective layer 10 is alumina silicate fibre.
By the synergy of resilient coating 5 and bottom protective layer 10; can prevent the Liquid Sodium bottom electrolyte ceramics pipe 4 from participating in reaction; while bottom protection electrolyte ceramics pipe 4; reduce the requirement for electrolyte ceramics pipe 4 perpendicularity and bottom circularity; prevent electrolyte ceramics pipe 4 from breaking; extend the useful life of electrolyte ceramics pipe 4, ensure the safe operation of sodium-sulphur battery.
During sodium-sulphur battery work, Liquid Sodium in storage sodium pipe 9, enters bursting tube 8 through filtering layer 92 and through hole 91, then from the top of bursting tube 8, overflow in described radial clearance 401, Liquid Sodium in radial clearance 401 enters into the inwall of electrolyte ceramics pipe 4, betatopic reaction occurs, after becoming sodium ion, sodium ion is through electrolyte ceramics pipe 4, from passing of electrolyte ceramics pipe 4 outer wall, enter cathode chamber and liquid sulfur is reacted, generate sodium polysulfide.When electrolyte ceramics pipe 4 breaks or generates micro-crack, the radial expansion of bursting tube 8 can reduce the sodium in radial clearance 401, ensure that the safeguard protection of sodium-sulphur battery effective, controls the temperature of sodium-sulphur battery within 600 DEG C.
An other improvement of sodium-sulphur battery is: the upper space 93 of storage sodium pipe 9, and be filled with protective gas in the space namely between the liquid level of Liquid Sodium and negative pole seal cover 11, this protective gas cannot be dissolved in Liquid Sodium, also cannot react with Liquid Sodium.This protective gas is preferably nitrogen or argon gas, from the angle of large-scale production, is preferably nitrogen.Under the working temperature of sodium-sulphur battery, the air pressure P1 in storage sodium pipe 9 is 0.2-2 standard atmospheric pressure.The volume of the upper space 93 of storage sodium pipe 9 is V1.
Claims (6)
1. a cathode of sodium-sulfur cell, comprises electrolyte ceramics pipe (4), described electrolyte ceramics pipe (4) radially inner side forms anode chamber (400), the end face of described electrolyte ceramics pipe (4) is provided with radially outward outstanding ceramic insulation ring (3), be provided with storage sodium pipe (9) in described anode chamber (400) and be socketed in the bursting tube (8) in described storage sodium pipe (9) outside, the top of described storage sodium pipe (9) is closed by negative pole seal cover (11), negative pole sealing ring (7) is provided with between described ceramic insulation ring (3) and described negative pole seal cover (11), described anode chamber (400) is closed, it is characterized in that:
The bottom of described bursting tube (8) outer wall and the bottom of described electrolyte ceramics pipe (4) inwall are provided with insulate and the nonwettable resilient coating of liquid towards sodium (5); the bottom of described electrolyte ceramics pipe (4) outer wall is provided with insulation and to sulphur and the nonwettable bottom protective layer of sodium polysulfide (10)
Gap filling layer (13) is provided with in radial clearance (401) between described bursting tube (8) and described electrolyte ceramics pipe (4), described gap filling layer (13) is weaved into by metallic fiber, and the porosity of described gap filling layer (13) is 30 ~ 50%
All protective gas is filled with in described storage sodium pipe (9).
2. a kind of cathode of sodium-sulfur cell according to claim 1; it is characterized in that: described resilient coating (5) be adopt in zirconia, silicon nitride, alumina powder or carbon dust any one or multiplely to make, described bottom protective layer (10) adopts alumina silicate fibre to make.
3. a kind of cathode of sodium-sulfur cell according to claim 1, is characterized in that: the bottom of described storage sodium pipe (9) is provided with through hole (91) and filter course (92).
4. a kind of cathode of sodium-sulfur cell according to claim 3, is characterized in that: the bottom of described storage sodium pipe (9) and described bursting tube (8) is rectangular base.
5. a kind of cathode of sodium-sulfur cell as claimed in any of claims 1 to 4, is characterized in that: the end face of described bursting tube (8) is higher than the end face of described electrolyte ceramics pipe (4).
6. a kind of cathode of sodium-sulfur cell according to claim 1, is characterized in that: the protective gas in described storage sodium pipe (9) is nitrogen or argon gas.
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| CN201310485934.4A CN103531856B (en) | 2013-10-17 | 2013-10-17 | A kind of cathode of sodium-sulfur cell |
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| CN201310485934.4A CN103531856B (en) | 2013-10-17 | 2013-10-17 | A kind of cathode of sodium-sulfur cell |
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| CN103531856B true CN103531856B (en) | 2016-04-20 |
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| CN106785106A (en) * | 2017-03-13 | 2017-05-31 | 上海电气钠硫储能技术有限公司 | A kind of controllable cathode of sodium-sulfur cell of air pressure |
| CN110212255B (en) * | 2019-06-03 | 2021-06-08 | 西安西电电气研究院有限责任公司 | Liquid battery and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4104448A (en) * | 1976-10-08 | 1978-08-01 | British Railways Board | Alkali metal-sulphur cells |
| CN202423500U (en) * | 2011-12-16 | 2012-09-05 | 日本碍子株式会社 | Sodium-sulfur cell |
| CN103123988A (en) * | 2012-12-12 | 2013-05-29 | 上海电气钠硫储能技术有限公司 | Sodium-sulfur battery |
| CN203491356U (en) * | 2013-10-17 | 2014-03-19 | 上海电气钠硫储能技术有限公司 | Negative electrode of sodium-sulfur battery |
-
2013
- 2013-10-17 CN CN201310485934.4A patent/CN103531856B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4104448A (en) * | 1976-10-08 | 1978-08-01 | British Railways Board | Alkali metal-sulphur cells |
| CN202423500U (en) * | 2011-12-16 | 2012-09-05 | 日本碍子株式会社 | Sodium-sulfur cell |
| CN103123988A (en) * | 2012-12-12 | 2013-05-29 | 上海电气钠硫储能技术有限公司 | Sodium-sulfur battery |
| CN203491356U (en) * | 2013-10-17 | 2014-03-19 | 上海电气钠硫储能技术有限公司 | Negative electrode of sodium-sulfur battery |
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