CN106785105A - A kind of liquid metal cell and its sealed insulation device - Google Patents
A kind of liquid metal cell and its sealed insulation device Download PDFInfo
- Publication number
- CN106785105A CN106785105A CN201611208124.4A CN201611208124A CN106785105A CN 106785105 A CN106785105 A CN 106785105A CN 201611208124 A CN201611208124 A CN 201611208124A CN 106785105 A CN106785105 A CN 106785105A
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- China
- Prior art keywords
- top cover
- insulation device
- negative pole
- insulation
- sealed insulation
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- Pending
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 118
- 229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 238000003825 pressing Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 17
- 150000003839 salts Chemical class 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 12
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Chemical compound [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 claims description 12
- 230000000994 depressogenic effect Effects 0.000 claims description 8
- 239000003792 electrolyte Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 6
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 239000011777 magnesium Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 6
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 229910052582 BN Inorganic materials 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- 229910000573 alkali metal alloy Inorganic materials 0.000 claims description 3
- 150000001340 alkali metals Chemical class 0.000 claims description 3
- 229910000941 alkaline earth metal alloy Inorganic materials 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- 229960004643 cupric oxide Drugs 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000001103 potassium chloride Substances 0.000 claims description 3
- 235000011164 potassium chloride Nutrition 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052571 earthenware Inorganic materials 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 230000026030 halogenation Effects 0.000 claims 1
- 238000005658 halogenation reaction Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004146 energy storage Methods 0.000 description 14
- 230000006872 improvement Effects 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- -1 halide salts Chemical class 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910017083 AlN Inorganic materials 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 208000032953 Device battery issue Diseases 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 239000006181 electrochemical material Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000013316 zoning Methods 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
- H01M10/399—Cells with molten salts
-
- 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
- H01M50/183—Sealing members
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
-
- 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)
- Hybrid Cells (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention proposes a kind of sealed insulation device, including top cover, and the top cover is provided with multiple positive terminals and at least one anode connector, the positive terminal and the anode connector insulation set；The top cover middle part is provided with through hole, and the anode connector is arranged in the through hole, and multiple insulation divisions are provided between the anode connector and the top cover；Multiple positive terminals are uniformly distributed in the periphery of the anode connector, and its one end is fixedly connected with the top cover；Seal is equipped between the insulation division and the top cover and anode connector.The sealed insulation device of this structure, during on liquid metal cell, due to setting multiple insulation divisions between anode connector and top cover, seal is equipped between insulation division and negative pole, its sealing effectiveness and insulation effect are more outstanding, can effectively extend the service life cycle of liquid metal cell.On the other hand, the present invention also proposes a kind of liquid metal cell including above-mentioned sealed insulation device.
Description
Technical field
The present invention relates to field of batteries, more particularly to a kind of liquid metal cell and its sealed insulation device.
Background technology
At present, the generation technology such as wind-force and photovoltaic due to cleanliness without any pollution, it is renewable the advantages of receive significant attention, but
Because the strong and weak change of wind-force, solar energy etc. causes its generation technology poor in the presence of discontinuous and stability, make it in grid-connected popularization
It is extremely restricted when using.But the energy storage and output by energy-storage battery can realize that stable electric generation is above-mentioned so as to reduce
Impact of the new-generation technology to power network so that utilization rate of electrical is greatly improved.Therefore development is stored up to energy such as wind energy, solar energy
The extensive energy storage technology deposited and steadily export turns into electrochemical energy storage field vital task.
Energy storage technology main at present has mechanical energy storage and chemical energy storage etc..Wherein physics energy storage has been primarily present storage of drawing water
Energy and compressed-air energy storage etc.；Chemical energy storage mainly has lead-acid battery, lithium ion battery, all-vanadium flow battery, sodium-sulphur battery, super
Level capacitor and lithium-air battery etc..Wherein chemical energy storage because its energy conversion efficiency is high, advantage of lower cost and ground
The extensive concern of the person of studying carefully.But in large scale electric network stored energy application, these batteries have battery high cost, security difference etc.
Problem.Such as lead-acid battery causes it to circulate because its positive electrode active materials brown lead oxide is easy to come off in charge and discharge process
Life-span is shorter, and the raw material of all-vanadium flow battery due to vanadium have toxicity and resource-constrained very high and be restricted, lithium from
Sub- battery has good performance in extensive energy storage, but its production cost is too high.Thus develop and meet low cost, follow
Ring long lifespan, security be good and the features such as abundant raw materials, and be adapted to wind energy, the energy storage of solar energy stabilization, regulation power network and put down
The large scale electric network energy storage technology of weighing apparatus seems too impatient to wait.
In the last few years, liquid metal cell also gradually came into people's life, and the advantage of this battery includes：Cheap metal
Composition both positive and negative polarity, inorganic salts as electrolyte, the positive and negative pole material of liquid, fusion electrolysis under 200~700 DEG C of operating temperature
Matter is because density to each other is different and incompatibility and AUTOMATIC ZONING are the positive pole, the electrolyte and negative that exist from bottom to top
Pole.This battery have the advantages that coulombic efficiency high, good rate capability, have extended cycle life, it is with low cost, it is adaptable to solve wind
The electricity generation grid-connecting energy storage such as power, solar energy.
But, liquid metal cell operationally also has its defect, because battery works at high temperature, therefore to sealing
It is required that it is also higher, inside battery electrode material and electrolytic salt can be caused to go bad and cause battery failure if sealing is bad, together
When positive and negative pole material and electrolytic salt align negative insulation material corrosion rate it is very fast, the life-span for also resulting in battery is big
It is big to reduce.
Therefore, how to provide a kind of sealing and corrosion resistance preferably, can be used for liquid metal cell, and can have
The sealed insulation device of the service life cycle of effect extension liquid metal cell, and the gold of the liquid including this sealed insulation device
Category battery, into the technical problem of those skilled in the art's urgent need to resolve.
The content of the invention
Based on the deficiencies in the prior art, the problem to be solved in the present invention is：How a kind of sealing and corrosion resistance are provided
Preferably, can be used for liquid metal cell, and the sealing of the service life cycle that can effectively extend liquid metal cell is exhausted
Edge device, and the liquid metal cell including this sealed insulation device.
In order to solve the above technical problems, the present invention provides a kind of sealed insulation device, including top cover, the top cover is provided with
Multiple positive terminals and at least one anode connector, the positive terminal and the anode connector insulation set；In the top cover
Portion is provided with through hole, and the anode connector is arranged in the through hole, and multiple insulation are provided between the anode connector and the top cover
Portion；Multiple positive terminals are uniformly distributed in the periphery of the anode connector, and its one end is fixedly connected with the top cover；Institute
State and be equipped with seal between insulation division and the top cover and anode connector.The sealed insulation device of this structure, for liquid gold
When on category battery, due to setting multiple insulation divisions between anode connector and top cover, seal is equipped between insulation division and negative pole, with
The sealed insulation device of existing structure is compared, and its sealing effectiveness and insulation effect are more outstanding, can effectively extend liquid metal
The service life cycle of battery.
Used as a kind of sealed insulation device of the invention improvement on the one hand, the anode connector includes negative pole eduction rod,
Annular plate is provided between the two ends of the negative pole eduction rod, the annular plate is set perpendicular to the negative pole eduction rod.
Used as a kind of sealed insulation device of the invention improvement on the one hand, the insulation division includes being sheathed on the negative pole
The first insulation division on eduction rod, first insulation division is arranged between the annular plate and the top cover.
As a kind of sealed insulation device of the invention improvement on the one hand, depression is provided with the middle part of first insulation division
Portion, the annular plate is contained in the depressed part.
Used as a kind of sealed insulation device of the invention improvement on the one hand, the sealed insulation device also includes pressing plate,
The pressing plate is sheathed on the negative pole eduction rod, and is insulated with the negative pole eduction rod, and the periphery of the pressing plate is provided with multiple
Connecting portion for connecting positive terminal.
Used as a kind of sealed insulation device of the invention improvement on the one hand, the insulation division also includes being sheathed on described bearing
The second insulation division on the eduction rod of pole, second insulation division is arranged between the annular plate and the pressing plate, and its part
It is placed in the depressed part.
As a kind of sealed insulation device of the invention improvement on the one hand, first insulation division and the second insulation division
Material be ceramics, inorganic salts, adhesive etc. it is therein one or more.
Used as a kind of sealed insulation device of the invention improvement on the one hand, the ceramics are zirconium oxide, aluminum oxide, nitridation
One or more therein of the structural ceramics such as aluminium, boron nitride, carborundum；The inorganic salts be lithium fluoride, lithium chloride, lithium bromide,
One kind in the halide salts such as lithium iodide, lithium iodide, potassium chloride, calcium chloride, sodium chloride；The pretreatment process bag of the inorganic salts
Include in Ar, N2And under inert atmosphere, 0~24 hour is incubated at 0 DEG C~1000 DEG C；The adhesive is acrylic acid, epoxy, poly- ammonia
One or more than one in ester, cupric oxide, aluminum oxide.
As a kind of sealed insulation device of the invention improvement on the one hand, when the composition of the adhesive includes two kinds,
Its proportion is (0.1：2)~(2：0.1)；The pretreatment temperature of the adhesive is between 40~800 DEG C.
Used as a kind of sealed insulation device of the invention improvement on the one hand, the seal includes the first sealing ring, institute
The first sealing ring is stated to be arranged between first insulation division and the top cover.
Used as a kind of sealed insulation device of the invention improvement on the one hand, the seal includes the second sealing ring, institute
The second sealing ring is stated to be arranged between the annular plate and first insulation division.
On the other hand, the present invention also proposes a kind of liquid metal cell, including housing and the sealing for being arranged at shell end
Seal, the housing and sealed insulation device enclose closed cavity, and the sealed insulation device is as above any one institute
The sealed insulation device stated.
As a kind of sealed insulation device of the invention improvement on the one hand, conductive crucible, institute are additionally provided with the housing
The bottom for stating top cover is held in the upper end of the conductive crucible, and the end of the top cover is held in the inside top of the housing.
As a kind of sealed insulation device of the invention improvement on the one hand, be additionally provided with the conductive crucible electrolyte,
Positive pole and negative pole, the negative pole also include negative current collector, and the lower end of the negative pole eduction rod is inserted on the negative pole.
Used as a kind of sealed insulation device of the invention improvement on the one hand, the material of the negative current collector is porous bubble
Foam metal；The material of the positive pole is alkali or alkaline earth metal alloy；The material of the negative pole is alkali metal, magnesium, or magnesium and calcium
Metal alloy；The electrolyte is low melting point inorganic salt mixt, or low melting point inorganic salt mixt and ceramic powders
Blend.
Brief description of the drawings
The accompanying drawing for constituting a part of the invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.
Fig. 1 is a kind of generalized section of liquid metal cell of the invention.
The positive pole of 1 housing, 2 conductive crucible 3
The negative pole eduction rod of 4 electrolyte, 5 negative pole 6
The insulation division of 7 top cover, 8 first insulation division 9 second
The pad of 10 first sealing ring, 11 second sealing ring 12 first
The pressing plate of 13 second pad, 14 nut 15
16 annular plates
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The embodiment of the present invention is as follows, sealed insulation device as shown in Figure 1, including top cover 7, and top cover 7 is being provided with multiple just
Pole joint and at least one anode connector, also, insulation set between positive terminal and anode connector.More specifically, top cover 7
Middle part be provided with a through hole, anode connector is arranged in through hole, and multiple positive terminals are then distributed evenly in anode connector
Periphery, the lower end of positive terminal is fixedly connected with the upper surface of top cover 7, or is integral type structure.Meanwhile, for prevent top cover 7 with
Anode connector short circuit, is additionally provided with multiple insulation divisions between anode connector and top cover 7.To improve the sealing effect of sealed insulation device
Really, one or more seals are respectively provided between insulation division and anode connector.The sealed insulation device of this structure, for liquid gold
When on category battery, due to setting multiple insulation divisions between anode connector and top cover 7, seal is equipped between insulation division and negative pole 5,
Compared with the sealed insulation device of existing structure, its sealing effectiveness and insulation effect are more outstanding, can effectively extend liquid gold
Belong to the service life cycle of battery.
On the basis of above-described embodiment, in another embodiment of the present invention, as shown in figure 1, anode connector draws including negative pole
Go out rod 6, negative pole eduction rod 6 is vertically arranged, annular plate 16 is additionally provided between the two ends of negative pole eduction rod 6, annular plate 16 is vertically negative
The center line of pole eduction rod 6 is set.It should be noted that can be fixed for welded type between annular plate 16 and negative pole eduction rod 6
Connection, can also be integrated casting structure, be not especially limited herein.
On the basis of above-described embodiment, in another embodiment of the present invention, as shown in figure 1, for insulation division, specifically including
The first insulation division 8 on negative pole eduction rod 6 is sheathed on, more specifically, the first insulation division 8 is arranged under negative pole eduction rod 6
Portion, i.e. annular plate are placed between annular plate 16 and top cover 7 below 16.
On the basis of above-described embodiment, in another embodiment of the present invention, as shown in figure 1, the middle part of the first insulation division 8 sets
There is depressed part, similar to circular meal dish structure, middle part is recessed, dish mouthful is flexed outward, and is held on positive terminal, annular plate 16
Then all it is contained in depressed part.
On the basis of above-described embodiment, in another embodiment of the present invention, as shown in figure 1, sealed insulation device also includes
Pressing plate 15, pressing plate 15 is sheathed on the top of negative pole eduction rod 6, i.e. annular plate 16, simultaneously as the periphery of pressing plate 15 also sets
There are multiple connecting portions for connecting positive terminal, therefore, to prevent positive pole 3 from being contacted with negative pole 5, pressing plate 15 and negative pole eduction rod
Insulation set between 6.It should be noted that connecting portion specifically may include to be arranged at multiple connecting holes on pressing plate 15, connecting hole is equal
It is even to be peripherally distributed, connector is provided with connecting hole, pressing plate 15 is removably secured by connector is arranged at positive terminal
On, connector is preferably bolt, nut 14 or screw, additionally, the reliability to increase connection, prevents connector from releasing, connects
The first pad 12 and the second pad 13 also can be set between part and pressing plate 15, the first pad 12 and the second pad 13 are overlapped.
On the basis of above-described embodiment, in another embodiment of the present invention, as shown in figure 1, insulation division also includes being sheathed on
The second insulation division 9 on negative pole eduction rod 6, more specifically, the second insulation division 9 is arranged between annular plate 16 and pressing plate 15,
Also, the bottom of the second insulation division 9 is placed in depressed part, pressing plate 15 is then sheathed on the top of the second insulation division 9.This setting side
Formula, has thoroughly blocked the physical contact of pressing plate 15 and negative pole eduction rod 6 from structure, effectively reduces the possibility of short circuit generation
Property.
On the basis of above-described embodiment, in another embodiment of the present invention, for the first insulation division 8 and the second insulation division 9
Material, preferably both material is identical, and for ceramics, inorganic salts, adhesive etc. it is therein one or more.
On the basis of above-described embodiment, in another embodiment of the present invention, above-mentioned ceramics, preferably zirconium oxide, aluminum oxide,
One or more therein of the structural ceramics such as aluminium nitride, boron nitride, carborundum；Above-mentioned inorganic salts, preferably lithium fluoride, chlorination
One kind in the halide salts such as lithium, lithium bromide, lithium iodide, lithium iodide, potassium chloride, calcium chloride, sodium chloride, and carry out or do not enter
Row pre-treatment, meanwhile, the pretreatment process of inorganic salts is included in Ar, N2And under other inert atmospheres, in 0 DEG C~1000 DEG C insulations
0~24 hour；For adhesive, preferably one kind therein such as acrylic acid, epoxy, polyurethane, cupric oxide, aluminum oxide or
More than kind.
On the basis of above-described embodiment, in another embodiment of the present invention, further, when the composition of adhesive includes
At two kinds, two kinds of proportions of composition are (0.1：2)~(2：0.1)；Also, the pretreatment temperature of adhesive between 40~
800℃。
On the basis of above-described embodiment, in another embodiment of the present invention, as shown in fig. 1, and for seal, specific bag
The first sealing ring 10, the first sealing ring 10 is included to be arranged between first insulation division 8 and top cover 7.More specifically, pressing plate 15
Upper surface offer the first seal groove, the first sealing ring 10 is arranged in the first seal groove.
On the basis of above-described embodiment, in another embodiment of the present invention, as shown in figure 1, for seal, also including
Two sealing rings 11, the second sealing ring 11 are arranged between the insulation division 8 of annular plate 16 and first.More specifically, annular plate 16
The second seal groove is offered on lower surface, the second sealing ring 11 is arranged in the second seal groove.For the first sealing ring 10 and
Two sealing rings 11, can play preferable sealing function, effectively prevent the liquid leakages such as electrolyte.Additionally, the first sealing ring 10
Material can be with varied, preferably stainless steel, and its cross sectional shape is annular.
On the other hand, the present invention also proposes a kind of liquid metal cell, including side and bottom surface closing, and top is opened wide and set
Housing 1, and the sealed insulation device of the end of housing 1 is arranged at, as shown in figure 1, housing 1 is enclosed with sealed insulation device
One sealing cavity, states sealed insulation device and is specially and state sealed insulation device as described above.
On the basis of above-described embodiment, in another embodiment of the present invention, as shown in figure 1, being additionally provided with conductive earthenware in housing 1
Crucible 2, the bottom of the top cover 7 of sealed insulation device is held in the upper end of conductive crucible 2, and the end of top cover 7 is then held in housing 1
Inside top, and top cover 7 and housing 1 are fixed together by connected modes such as welding, and formation one is completely closed
Cavity structure.
On the basis of above-described embodiment, in another embodiment of the present invention, as shown in figure 1, being additionally provided with electricity in conductive crucible 2
Solution matter 4, positive pole 3 and negative pole 5, negative pole 5 include negative current collector, and the lower end of negative pole eduction rod 6 is inserted on negative pole 5, and
Electric current is drawn outside housing 1 by negative pole eduction rod 6.
It is preferably many for the material of negative current collector in another embodiment of the present invention on the basis of above-described embodiment
Hole foam metal.For the material of positive pole 3, preferably alkali or alkaline earth metal alloy；And for the material of negative pole 5, be then preferably
Alkali metal, magnesium, or magnesium and calcium metal alloy；Can be low melting point inorganic salts in one embodiment for electrolyte 4
Mixture, can also be the blend of low melting point inorganic salt mixt and ceramic powders in other embodiments.
Additionally, for housing 1, negative pole eduction rod 6, top cover 7, pressing plate 15, the first pad 12, the second pad 13 and nut 14
Material be both preferably stainless steel.
The liquid metal cell of said structure, compared with the liquid metal cell of existing structure, its sealed insulation device is
The guarantee of liquid metal cell long circulation life, sealed insulation device keep liquid metal cell low cost on the basis of, energy
The sealing of battery is enough effectively ensured, while, moreover it is possible to effectively suppress liquid metal cell inside electrochemical material to positive and negative electrode it
Between insulation division corrosion, and then prevent positive and negative electrode from being failed due to short circuit, while prevent liquid metal cell seal failure, because
This substantially increases the cycle life of liquid metal cell.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (15)
1. a kind of sealed insulation device, it is characterised in that including top cover (7), the top cover (7) be provided with multiple positive terminals and
At least one anode connector, the positive terminal and the anode connector insulation set；
The top cover (7) middle part is provided with through hole, and the anode connector is arranged in the through hole, the anode connector and the top
Multiple insulation divisions are provided between lid (7)；
Multiple positive terminals are uniformly distributed in the periphery of the anode connector, and its one end and the fixed company of the top cover (7)
Connect；
Seal is equipped between the insulation division and the top cover (7) and anode connector.
2. sealed insulation device according to claim 1, it is characterised in that the anode connector includes negative pole eduction rod
(6) annular plate (16), is provided between the two ends of the negative pole eduction rod (6), the annular plate (16) is drawn perpendicular to the negative pole
Go out rod (6) setting.
3. sealed insulation device according to claim 2, it is characterised in that the insulation division includes being sheathed on the negative pole
The first insulation division (8) on eduction rod (6), first insulation division (8) is arranged at the annular plate (16) with the top cover (7)
Between.
4. sealed insulation device according to claim 3, it is characterised in that be provided with the middle part of first insulation division (8)
Depressed part, the annular plate (16) is contained in the depressed part.
5. sealed insulation device according to claim 4, it is characterised in that the sealed insulation device also includes pressing plate
(15), the pressing plate (15) is sheathed on the negative pole eduction rod (6), and is insulated with the negative pole eduction rod (6), the pressing plate
(15) periphery is provided with multiple connecting portions for connecting positive terminal.
6. sealed insulation device according to claim 5, it is characterised in that the insulation division also includes being sheathed on described negative
The second insulation division (9) on pole eduction rod (6), second insulation division (9) is arranged at the annular plate (16) and the pressing plate
(15) between, and it is partially disposed in the depressed part.
7. sealed insulation device according to claim 6, it is characterised in that first insulation division (8) and the second insulation
The material in portion (9) be ceramics, inorganic salts, adhesive etc. it is therein one or more.
8. sealed insulation device according to claim 7, it is characterised in that the ceramics are zirconium oxide, aluminum oxide, nitridation
One or more therein of the structural ceramics such as aluminium, boron nitride, carborundum；
The inorganic salts are the halogenations such as lithium fluoride, lithium chloride, lithium bromide, lithium iodide, lithium iodide, potassium chloride, calcium chloride, sodium chloride
One kind in thing salt；
The pretreatment process of the inorganic salts is included in Ar, N2And under inert atmosphere, 0~24 hour is incubated at 0 DEG C~1000 DEG C；
The adhesive is the one or more than one in acrylic acid, epoxy, polyurethane, cupric oxide, aluminum oxide.
9. sealed insulation device according to claim 8, it is characterised in that when the composition of the adhesive includes two kinds,
Its proportion is (0.1：2)~(2：0.1)；
The pretreatment temperature of the adhesive is between 40~800 DEG C.
10. sealed insulation device according to claim 6, it is characterised in that the seal includes the first sealing ring
(10), first sealing ring (10) is arranged between first insulation division (8) and the top cover (7).
11. sealed insulation devices according to claim 10, it is characterised in that the seal includes the second sealing ring
(11), second sealing ring (11) is arranged between the annular plate (16) and first insulation division (8).
A kind of 12. liquid metal cells, including housing (1) and the sealed insulation device of housing (1) end is arranged at, the housing
(1) and sealed insulation device encloses closed cavity, it is characterised in that during the sealed insulation device is claim 1 to 11
Sealed insulation device described in any one.
13. liquid metal cells according to claim 12, it is characterised in that be additionally provided with conductive earthenware in the housing (1)
Crucible (2), the bottom of the top cover (7) is held in the upper end of the conductive crucible (2), and the end of the top cover (7) is held in institute
State the inside top of housing (1).
14. liquid metal cells according to claim 13, it is characterised in that be additionally provided with electricity in the conductive crucible (2)
Solution matter (4), positive pole (3) and negative pole (5), the negative pole (5) also include negative current collector, the lower end of the negative pole eduction rod (6)
It is inserted on the negative pole (5).
15. liquid metal cells according to claim 14, it is characterised in that the material of the negative current collector is porous
Foam metal；
The material of the positive pole (3) is alkali or alkaline earth metal alloy；
The material of the negative pole (5) is alkali metal, magnesium, or magnesium and calcium metal alloy；
The electrolyte (4) is low melting point inorganic salt mixt, or low melting point inorganic salt mixt and ceramic powders blending
Thing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208124.4A CN106785105A (en) | 2016-12-23 | 2016-12-23 | A kind of liquid metal cell and its sealed insulation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208124.4A CN106785105A (en) | 2016-12-23 | 2016-12-23 | A kind of liquid metal cell and its sealed insulation device |
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| CN114824512A (en) * | 2022-04-13 | 2022-07-29 | 华中科技大学 | Sodium-based liquid metal battery based on replacement reaction and preparation method thereof |
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