CN206282895U - A kind of high temperature energy-storage battery and its sealing structure - Google Patents
A kind of high temperature energy-storage battery and its sealing structure Download PDFInfo
- Publication number
- CN206282895U CN206282895U CN201621425725.6U CN201621425725U CN206282895U CN 206282895 U CN206282895 U CN 206282895U CN 201621425725 U CN201621425725 U CN 201621425725U CN 206282895 U CN206282895 U CN 206282895U
- Authority
- CN
- China
- Prior art keywords
- sealing
- sealing ring
- top cover
- mounting groove
- sealing structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 178
- 238000004146 energy storage Methods 0.000 title claims abstract description 49
- 125000004122 cyclic group Chemical group 0.000 claims description 8
- 238000007747 plating Methods 0.000 claims description 5
- 239000010963 304 stainless steel Substances 0.000 claims description 4
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 25
- 208000032953 Device battery issue Diseases 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000010248 power generation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- 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
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model proposes a kind of high temperature energy-storage battery and its sealing structure, sealing structure includes top cover, and the top cover is provided with multiple positive terminals and at least one anode connector, and the top cover middle part is provided with through hole, the anode connector is arranged in the through hole, and with the top cover insulation set；Multiple positive terminals are uniformly distributed in the periphery of the anode connector, and its one end is fixedly connected with the top cover；Multiple insulating parts are additionally provided between the positive terminal and the anode connector；Multiple seals are additionally provided between the anode connector and the top cover.The sealing structure of this structure, for high temperature energy-storage battery, due to setting multiple insulating parts between positive terminal and anode connector, and multiple seals are set between anode connector and top cover simultaneously, so that the insulating properties and sealing property of sealing structure are obtained for and effectively improve, can effectively prevent due to sealing and the not enough caused high temperature energy-storage battery failure of insulating properties.
Description
Technical Field
The utility model relates to an energy storage battery field, in particular to high temperature energy storage battery and seal structure thereof.
Background
The energy problem increasingly becomes the focus of international society and government attention in China, and the development of clean renewable energy sources such as wind energy, solar energy and the like and the improvement of the use efficiency of the energy sources are effective ways for solving the energy problem. However, due to the fact that the power generation technology of the wind power generator has discontinuous stability caused by the strength change of wind power, solar energy and the like, the grid connection popularization and use of the wind power generator are greatly limited. The application of the high-capacity energy storage system can adjust the peak of the power grid, cut the peak of the load and fill the valley, effectively enhance the operation stability of the wind power generation and solar power generation systems and improve the electric energy quality. In recent years, high-temperature electrochemical energy storage is rapidly developed, and a sodium-sulfur battery is a high-temperature battery with the working temperature of 300-350 ℃, and has been successfully used for stable output of renewable energy sources such as peak clipping and valley filling, emergency power supplies, wind power generation and the like, and the aspect of improving the power quality and the like. Hundreds of sodium-sulfur battery energy storage power stations are operated abroad, and are the most mature and potential of various advanced secondary batteries. The liquid metal battery is another high-temperature energy storage battery, the operation temperature is generally 400-600 ℃, and the liquid metal battery has the advantages of high coulomb efficiency, good rate performance, long cycle life, low cost and the like, and is suitable for solving the advantages of power generation and grid-connected energy storage of wind power, solar energy and the like.
However, although the high-temperature energy storage battery has many advantages, the sealing problem is a problem faced by researchers at present due to the high operation temperature, and when the sealing is poor, the electrode material and the electrolyte in the high-temperature energy storage battery are easy to deteriorate, so that the high-temperature energy storage battery fails. Therefore, how to provide a sealing structure capable of better sealing a high-temperature energy storage battery and a high-temperature energy storage battery comprising the sealing structure becomes a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the sealing structure can better seal the high-temperature energy storage battery, and the high-temperature energy storage battery comprising the sealing structure.
The utility model discloses a solution is realized like this: the utility model provides a sealing structure, which is characterized in that the sealing structure comprises a top cover, wherein the top cover is provided with a plurality of anode connectors and at least one cathode connector, the middle part of the top cover is provided with a through hole, and the cathode connector is arranged in the through hole and insulated from the top cover; the plurality of positive connectors are uniformly distributed on the periphery of the negative connector, and one end of each positive connector is fixedly connected with the top cover; a plurality of insulating parts are arranged between the positive electrode joint and the negative electrode joint; and a plurality of sealing pieces are also arranged between the negative electrode joint and the top cover. The sealing structure with the structure is used for the high-temperature energy storage battery, and is characterized in that a plurality of insulating pieces are arranged between the positive electrode joint and the negative electrode joint, and a plurality of sealing pieces are arranged between the negative electrode joint and the top cover, so that the insulating property and the sealing property of the sealing structure are effectively improved, and the high-temperature energy storage battery failure caused by insufficient sealing and insulating properties can be effectively prevented.
The utility model discloses a further technical scheme lies in on above-mentioned basis, the negative pole connects including negative pole mass flow pole, be equipped with cyclic annular board between the both ends of negative pole mass flow pole, cyclic annular board perpendicular to negative pole mass flow pole sets up.
The utility model discloses a further technical scheme lies in on above-mentioned basis, cyclic annular board with still be equipped with the first insulation piece between the top cap surface, first insulation piece cover is located on the negative pole mass flow pole, between first insulation piece and the top cap surface to and all be equipped with the sealing member between first insulation piece and the cyclic annular board.
Another technical scheme of the utility model lies in on above-mentioned basis, the sealing member includes first sealing washer and second sealing washer, first sealing washer set up in between first insulation piece and the top cap surface, the second sealing washer set up in between first insulation piece and the cyclic annular board. According to the arrangement mode, the sealing pieces are arranged on the upper side and the lower side of the first insulating piece, so that the sealing property between the negative pole current collecting rod and the top cover can be further improved.
Another technical solution of the present invention is that on the basis of the above, a first mounting groove is further formed on the surface of the top cover, and the first sealing ring is disposed in the first mounting groove; still be equipped with the second mounting groove on the cyclic annular board, the second sealing washer set up in the second mounting groove.
The other technical scheme of the utility model is that on the basis, the diameter of the cross section of the first sealing ring is between 1.6 and 2.5mm, and when the first sealing ring is arranged in the first mounting groove, the span between the inner side and the outer side of the first sealing ring and the two sides of the first mounting groove is between 0.4 and 1 mm; the diameter of the section of the second sealing ring is 1.6-2.5 mm, and when the second sealing ring is arranged in the second mounting groove, the span between the inner side and the outer side of the second sealing ring and the two sides of the first mounting groove is 0.5-1 mm; or the diameter of the cross section of the first sealing ring is 2.5-4 mm, and when the first sealing ring is arranged in the first mounting groove, the span between the inner side and the outer side of the first sealing ring and the two sides of the first mounting groove is 0.8-1.5 mm; the diameter of the cross section of the second sealing ring is between 2.5mm and 4mm, and when the second sealing ring is arranged in the second mounting groove, the inner side and the outer side of the second sealing ring and the two sides of the first mounting groove are 0.8 mm to 1.5mm in span.
The utility model discloses an another technical scheme lies in on above-mentioned basis, the material of first sealing washer and second sealing washer is 304 stainless steel, and its cross sectional shape is ring shape, and the wall thickness is between 0.25 ~ 0.36 mm.
Another technical scheme of the utility model lies in on the basis of above-mentioned, the surface of first sealing washer and second sealing washer still is equipped with gold-plated layer or silvered film.
The utility model discloses a further technical scheme lies in on above-mentioned basis, the quantity that the positive pole connects is four, four the positive pole connects and passes through the clamp plate to be connected, just clamp plate middle part cover is located on the negative pole mass flow pole, and with the negative pole mass flow pole is insulating.
The utility model discloses a further technical scheme lies in on the basis of the aforesaid, the clamp plate with still be equipped with the second insulating piece between the upper surface of cyclic annular board, the second insulating sheet cover is located on the negative pole mass flow pole. In the arrangement mode, the second insulating ring is arranged at the position, so that effective insulation can be formed between the annular plate and the pressing plate, and the anode and the cathode are prevented from being in contact with each other to form short circuit.
The utility model discloses a further technical scheme lies in on the basis of the aforesaid, the outside of first insulation piece and second insulating piece with still be equipped with the insulating ring between the positive pole connector, the insulating ring cover is located the periphery of first insulation piece and second insulating piece. In this arrangement, an insulating ring is provided at this location in order to provide insulation between the outer periphery of the annular plate and the positive terminal.
The utility model discloses a another technical scheme lies in on above-mentioned basis, negative pole mass flow pole is kept away from the one end of top cap still is equipped with rotatable nut, the nut with still be equipped with insulating gasket between the clamp plate. In this arrangement, the insulating washer is provided to prevent the lower edge of the nut from contacting the pressure plate, thereby causing a short circuit.
The utility model discloses an another technical scheme lies in on above-mentioned basis, evenly set up on the clamp plate four respectively with anodal articulate's connecting hole, still be equipped with the detachable connecting piece in the connecting hole.
On the other hand, the utility model also provides a high temperature energy storage battery, including the casing with set up in housing end's seal structure, the casing with seal structure encloses synthetic airtight cavity, seal structure is as above arbitrary seal structure. Compared with the high-temperature energy storage battery with the existing structure, the high-temperature energy storage battery with the structure has the advantages that the plurality of insulating pieces are arranged between the positive electrode joint and the negative electrode joint, and the plurality of sealing pieces are arranged between the negative electrode joint and the top cover, so that the insulating property and the sealing property of the sealing structure are effectively improved, and the high-temperature energy storage battery with the structure can be effectively prevented from losing efficacy due to insufficient sealing and insulating properties.
Another technical scheme of the utility model lies in on above-mentioned basis, the top inboard of casing is equipped with the step, seal structure's top cap tip set up in on the step, and with step fixed connection. According to the arrangement mode, the sealing structure and the shell are welded together, so that the sealing effect of the high-temperature energy storage battery can be further improved.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation.
Fig. 1 is a schematic cross-sectional view of a first embodiment of a high temperature energy storage battery according to the present invention;
fig. 2 is a schematic top view of a high temperature energy storage battery according to a first embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the overcap of FIG. 1;
FIG. 4 is a schematic top view of the overcap of FIG. 3;
fig. 5 is a schematic cross-sectional view of the negative current collector bar of fig. 1;
fig. 6 is a schematic top view of the negative current collector bar of fig. 5;
FIG. 7 is a schematic front view of the seal ring of FIG. 1;
FIG. 8 is a schematic cross-sectional view of FIG. 7;
fig. 9 is a schematic cross-sectional view of a second embodiment of a high temperature energy storage battery according to the present invention;
fig. 10 is a schematic top view of a high temperature energy storage battery according to a second embodiment of the present invention;
FIG. 11 is a cross-sectional schematic view of the overcap of FIG. 9;
FIG. 12 is a schematic top view of the overcap of FIG. 11;
fig. 13 is a schematic cross-sectional view of the negative current collector bar of fig. 9;
fig. 14 is a schematic top view of the negative current collector bar of fig. 13;
FIG. 15 is a schematic front view of the first seal ring of FIG. 9;
fig. 16 is a schematic cross-sectional view of fig. 15.
The corresponding relation of the reference signs is as follows:
1 casing 11 bottom 2 seal structure
21 top cover 22 insulating ring 23 first sealing ring
24 first insulating sheet 25 second sealing ring 26 negative pole current collecting rod
27 second insulating sheet 28 pressure plate 29 insulating spacer
210 nut 211 connecting piece
2101 first mounting groove 2102 connecting hole 2301 pressure relief hole
2601 annular plate 2602 second mounting groove
Detailed Description
The present invention will be described in detail with reference to the drawings, which are provided for illustrative and explanatory purposes only and should not be construed as limiting the scope of the present invention in any way. Furthermore, features from embodiments in this document and from different embodiments may be combined accordingly by a person skilled in the art from the description in this document.
The first embodiment is as follows:
the embodiment of the utility model provides a following, please refer to the high temperature energy storage battery that fig. 1 to fig. 8 are shown and seal structure 2 thereof, and seal structure 2 specifically includes top cap 21, is equipped with a plurality of positive electrode joint and at least one negative pole on top cap 21 and connects, and top cap 21's middle part is equipped with the through-hole, and the negative pole connects and sets up in the through-hole, sets up with top cap 21 insulation simultaneously. A plurality of positive level joints set up on top cap 21 to evenly distributed is in the periphery of negative pole joint, and, the lower extreme that the positive pole connects is fixed to be set up on top cap 21, or with top cap 21 formula structure as an organic whole. Still be equipped with a plurality of insulators that are used for preventing that positive electrode tab and negative electrode tab from switching on between anodal joint and the negative electrode tab, still be equipped with a plurality of sealing members that are used for improving its sealing performance between negative electrode tab and top cap 21. The sealing structure 2 with the structure is used for the high-temperature energy storage battery, and is characterized in that a plurality of insulating pieces are arranged between the positive electrode joint and the negative electrode joint, and a plurality of sealing pieces are arranged between the negative electrode joint and the top cover 21, so that the insulating property and the sealing property of the sealing structure 2 are effectively improved, and the high-temperature energy storage battery failure caused by insufficient sealing and insulating properties can be effectively prevented.
In addition to the above embodiments, as shown in fig. 1, 5 and 6, the negative connector includes a negative current collecting rod 26, and a ring-shaped plate 2601 is further disposed between two ends of the negative current collecting rod 26, specifically, the ring-shaped plate 2601 is vertically disposed at a middle position of the negative current collecting rod 26, and the ring-shaped plate 2601 and the negative current collecting rod 26 may be welded or may be an integral structure, that is, formed by one-step casting, and is not limited herein. The upper surface of the annular plate 2601 is provided with a second mounting groove 2602, which is an O-ring groove with two closed ends, for placing an O-ring.
On the basis of the above embodiment, as shown in fig. 1, the insulating member specifically includes a first insulating sheet 24 and a second insulating sheet 27, the first insulating sheet 24 is disposed between the annular plate 2601 and the surface of the top cover 21, a sleeving hole is provided in the middle of the first insulating sheet 24, the first insulating sheet 24 is sleeved on the negative current collecting rod 26 through the sleeving hole, and sealing members are disposed between the first insulating sheet 24 and the surface of the top cover 21 and between the first insulating sheet 24 and the annular plate 2601.
On the basis of the above-described embodiment, as shown in fig. 1, the sealing member specifically includes the first sealing ring 23 and the second sealing ring 25, the first sealing ring 23 is specifically disposed between the first insulating sheet 24 and the surface of the top cover 21, and the second sealing ring 25 is also specifically disposed between the first insulating sheet 24 and the annular plate 2601. In this arrangement, the sealing members are provided on both upper and lower sides of the first insulating sheet 24, so that the sealing property between the negative current collecting rod 26 and the top cover 21 can be further improved.
On the basis of the above embodiments, as shown in fig. 1, fig. 3, fig. 4, fig. 5 and fig. 6, the top cover 21 is further provided with a first mounting groove 2101, which is an O-ring-shaped groove with two closed sides, on the upper surface for mounting the first sealing ring 23, and the first sealing ring 23 is disposed in the first mounting groove 2101; a second mounting groove 2602 for mounting a second sealing ring 25 is further formed in the lower side plate of the annular plate 2601, and the sealing ring is arranged in the second mounting groove 2602; the first mounting groove 2101 and the second mounting groove 2602 are positioned at the same radial position on the circumference, and the stress points are concentrated, so that the fastening force of the nut 210 can be uniformly transmitted, and the first mounting groove 2101 and the second mounting groove 2602 are suitable for occasions with smaller deformation required by the first sealing ring 23 and the second sealing ring 25.
On the basis of the above embodiment, as shown in fig. 1, 7 and 8, the cross-sectional diameter of the first sealing ring 23 is between 1.6 and 2.5mm, and when the first sealing ring 23 is completely placed in the first mounting groove 2101, the span between the inner side and the outer side of the first sealing ring 23 and the two sides of the first mounting groove 2101 is between 0.4 and 1 mm. Similarly, the size of the second sealing ring 25 is the same as that of the first sealing ring 23, the diameter of the cross section of the second sealing ring 25 is also 1.6-2.5 mm, and when the second sealing ring 25 is completely arranged in the second mounting groove 2602, the span between the inner side and the outer side of the second sealing ring 25 and the two sides of the second mounting groove 2602 is 0.5-1 mm.
In addition to the above embodiments, the first seal ring 23 and the second seal ring 25 are preferably made of stainless steel, and are preferably made of 304 stainless steel, and as shown in fig. 8, the cross-sectional shape thereof is circular, and the thickness thereof is 0.2 to 0.36 mm.
In addition to the above embodiments, for the first seal ring 23 and the second seal ring 25, in order to further enhance the sealing performance, a gold plating layer may be sprayed on the outer surface of the seal ring, and in other embodiments, a silver plating layer may be sprayed.
On the basis of the above embodiment, as shown in fig. 1 to 4, as for the number of the positive electrode tabs, preferably four positive electrode tabs are connected with each other through a pressing plate 28, a through hole is formed in the middle of the pressing plate 28 and sleeved on the negative current collecting rod 26 through the through hole, and meanwhile, the pressing plate 28 and the negative current collecting rod 26 are arranged in an insulating manner. The pressing plate 28 is provided with four attachment holes 2102 at the periphery thereof, and a connecting member 211 for fixing the pressing plate 28 to the top cover 21 is provided in each attachment hole 2102. More specifically, the coupling hole 2102 may be a screw hole, and the coupling member 211 may be a screw coupling member.
In addition to the above embodiments, as shown in fig. 1, a second insulation sheet 27 is further disposed between the pressing plate 28 and the annular plate 2601, a sleeving hole is disposed in a middle portion of the second insulation sheet 27, and is sleeved on the negative current collecting rod 26 through the sleeving hole, an upper surface of the second insulation sheet 27 contacts with a lower surface of the pressing plate 28, and a lower surface of the second insulation sheet 27 contacts with a lower surface of the annular plate 2601. In this arrangement, by disposing the second insulating ring 22 at this position, effective insulation is formed between the annular plate 2601 and the pressing plate 28, and the short circuit between the positive and negative electrodes due to the contact therebetween is prevented.
On the basis of the above embodiment, as shown in fig. 1, the insulating ring 22 is further sleeved on the outer sides of the first insulating sheet 24 and the second insulating sheet 27, more specifically, the inner side of the insulating ring 22 is sleeved on the first insulating sheet 24 and the second insulating sheet 27, and the outer side thereof abuts against the inner side of the positive electrode tab. In this arrangement, an insulating ring 22 is provided at this position in order to provide insulation between the outer periphery of the annular plate 2601 and the positive electrode tab.
On the basis of the above embodiment, as shown in fig. 1, the upper end of the negative current collecting rod 26 is further provided with an external thread, the external thread is provided with a rotatable nut 210, and an insulating gasket 29 is further provided between the nut 210 and the pressing plate 28. This arrangement, where insulating washer 29 is provided, is intended to prevent the lower edge of nut 210 from contacting pressure plate 28, thereby causing a short circuit.
On the basis of the above embodiment, as shown in fig. 1 and fig. 2, four connection holes for connecting the pressure plate 28 with the positive electrode connector are uniformly formed on the pressure plate 28, a detachable connection member 211 is arranged in the connection holes, specifically, the connection holes are screw holes, and the connection member 211 is preferably a bolt or a screw. During wiring, the bolt or the screw is loosened, the electric wire is sleeved on the bolt or the nut 210, and the electric wire is screwed again.
On the other hand, the utility model also provides a high temperature energy storage battery, as shown in fig. 1, high temperature energy storage battery includes casing 1 and sets up in casing 1's seal structure 2, and encloses synthetic sealed cavity between casing 1 and the seal structure 2, the flourishing electrolyte in the sealed cavity, seal structure 2 specifically is as above seal structure 2. Compared with the high-temperature energy storage battery with the existing structure, the high-temperature energy storage battery with the structure has the advantages that the plurality of insulating pieces are arranged between the positive electrode joint and the negative electrode joint, and the plurality of sealing pieces are arranged between the negative electrode joint and the top cover 21, so that the insulating property and the sealing property of the sealing structure 2 are effectively improved, and the high-temperature energy storage battery with the structure can be effectively prevented from losing efficacy due to insufficient sealing and insulating properties.
On the basis of the above embodiment, as shown in fig. 1, a step is provided on the inner side of the top of the housing 1, and the end of the top cover 21 of the sealing structure 2 is overlapped on the step and is fixedly connected with the step, which may be welded. According to the arrangement mode, the sealing structure 2 and the shell 1 are welded together, so that the sealing effect of the high-temperature energy storage battery can be further improved.
Example two:
the embodiment of the utility model provides a two following, please refer to the high temperature energy storage battery that fig. 9 to fig. 16 are shown and seal structure 2 thereof, and seal structure 2 specifically includes top cap 21, is equipped with a plurality of positive electrode joints and at least one negative pole on top cap 21 and connects, and top cap 21's middle part is equipped with the through-hole, and the negative pole connects and sets up in the through-hole, sets up with top cap 21 insulation simultaneously. A plurality of positive level joints set up on top cap 21 to evenly distributed is in the periphery of negative pole joint, and, the lower extreme that the positive pole connects is fixed to be set up on top cap 21, or with top cap 21 formula structure as an organic whole. Still be equipped with a plurality of insulators that are used for preventing that positive electrode tab and negative electrode tab from switching on between anodal joint and the negative electrode tab, still be equipped with a plurality of sealing members that are used for improving its sealing performance between negative electrode tab and top cap 21. The sealing structure 2 with the structure is used for the high-temperature energy storage battery, and is characterized in that a plurality of insulating pieces are arranged between the positive electrode joint and the negative electrode joint, and a plurality of sealing pieces are arranged between the negative electrode joint and the top cover 21, so that the insulating property and the sealing property of the sealing structure 2 are effectively improved, and the high-temperature energy storage battery failure caused by insufficient sealing and insulating properties can be effectively prevented.
In addition to the above embodiments, as shown in fig. 9, 13 and 14, the negative connector includes a negative current collecting rod 26, and a ring-shaped plate 2601 is further disposed between two ends of the negative current collecting rod 26, specifically, the ring-shaped plate 2601 is vertically disposed at a middle position of the negative current collecting rod 26, and the ring-shaped plate 2601 and the negative current collecting rod 26 may be welded or may be an integral structure, that is, formed by one-step casting, and is not limited herein. An O-ring groove, i.e., a second mounting groove 2602, with openings at both sides is formed on the upper surface of the annular plate 2601 for placing an O-ring.
On the basis of the above embodiment, as shown in fig. 9, the insulating member specifically includes a first insulating sheet 24 and a second insulating sheet 27, the first insulating sheet 24 is disposed between the annular plate 2601 and the surface of the top cover 21, a sleeving hole is provided in the middle of the first insulating sheet 24, the first insulating sheet 24 is sleeved on the negative current collecting rod 26 through the sleeving hole, and sealing members are disposed between the first insulating sheet 24 and the surface of the top cover 21 and between the first insulating sheet 24 and the annular plate 2601.
On the basis of the above-described embodiment, as shown in fig. 9, the sealing member specifically includes the first sealing ring 23 and the second sealing ring 25, the first sealing ring 23 is specifically disposed between the first insulating sheet 24 and the surface of the top cover 21, and the second sealing ring 25 is also specifically disposed between the first insulating sheet 24 and the annular plate 2601. In this arrangement, the sealing members are provided on both upper and lower sides of the first insulating sheet 24, so that the sealing property between the negative current collecting rod 26 and the top cover 21 can be further improved.
On the basis of the above embodiment, as shown in fig. 9, 11, 12, 13 and 14, the top cover 21 is further provided with a first mounting groove 2101 on the upper surface for mounting the first sealing ring 23, the first sealing ring 23 is disposed in the first mounting groove 2101, and the first sealing ring 23 is disposed in the first mounting groove 2101; a second mounting groove 2602 for mounting a second sealing ring 25 is further formed in the lower side plate of the annular plate 2601, and the sealing ring is arranged in the second mounting groove 2602; the positions of the first mounting groove 2101 and the second mounting groove 2602 are not equal in the circumferential radial direction, the force points are distributed, the fastening force of the nut 210 can be transmitted in a distributed manner, and the first sealing ring 2101 and the second sealing ring 2602 are suitable for occasions with large extrusion force and large deformation amount required by the first sealing ring 23 and the second sealing ring 25.
On the basis of the above embodiment, as shown in fig. 9, 15 and 16, the cross-sectional diameter of the first sealing ring 23 is between 2.5 and 4mm, and when the first sealing ring 23 is completely placed in the first mounting groove 2101, the span between the inner side and the outer side of the first sealing ring 23 and the two sides of the first mounting groove 2101 is between 0.8 and 1.5 mm. Similarly, for the second sealing ring 25, the size of the second sealing ring is in clearance fit with the inner side and the outer side of the second mounting groove 2601, the diameter of the cross section of the second sealing ring is also between 2.5mm and 4mm, and when the second sealing ring 25 is completely arranged in the second mounting groove 2602, the span between the inner side and the outer side of the second sealing ring 25 and the span between the inner side and the outer side of the second mounting groove 2602 are between 0.8 mm and 1.5mm
In addition to the above embodiments, the first seal ring 23 and the second seal ring 25 are preferably made of stainless steel, and are preferably made of 304 stainless steel, and as shown in fig. 16, the cross-sectional shape thereof is circular, and the thickness thereof is 0.25 to 0.4 mm.
On the basis of the above embodiments, for the first seal ring 23 and the second seal ring 25, in order to further enhance the sealing performance, a gold plating layer may be sprayed on the outer surface of the seal ring, and in other embodiments, a silver plating layer may also be sprayed; as shown in fig. 16, in order to reduce the compressive deformation force and enhance the sealing performance, 1, 2, or a plurality of pressure relief holes 2301 may be provided in the seal ring inner ring.
On the basis of the above embodiment, as shown in fig. 9 to 12, it is preferable that the number of the positive electrode tabs is four, the four positive electrode tabs are connected to each other by the pressing plate 28, the pressing plate 28 is provided with a through hole at the middle portion and sleeved on the negative electrode current collecting rod 26 through the through hole, and the pressing plate 28 and the negative electrode current collecting rod 26 are arranged in an insulated manner. The pressing plate 28 is provided with four attachment holes 2102 at the periphery thereof, and a connecting member 211 for fixing the pressing plate 28 to the top cover 21 is provided in each attachment hole 2102. More specifically, the coupling hole 2102 may be a screw hole, and the coupling member 211 may be a screw coupling member.
In addition to the above embodiments, as shown in fig. 9, a second insulation sheet 27 is further disposed between the pressing plate 28 and the annular plate 2601, a sleeving hole is disposed in the middle of the second insulation sheet 27, and is sleeved on the negative current collecting rod 26 through the sleeving hole, the upper surface of the second insulation sheet 27 contacts with the lower surface of the pressing plate 28, and the lower surface of the second insulation sheet 27 contacts with the lower surface of the annular plate 2601. In this arrangement, by disposing the second insulating ring 22 at this position, effective insulation is formed between the annular plate 2601 and the pressing plate 28, and the short circuit between the positive and negative electrodes due to the contact therebetween is prevented.
On the basis of the above embodiment, as shown in fig. 9, the insulating ring 22 is further sleeved on the outer sides of the first insulating sheet 24 and the second insulating sheet 27, more specifically, the inner side of the insulating ring 22 is sleeved on the first insulating sheet 24 and the second insulating sheet 27, and the outer side thereof abuts against the inner side of the positive electrode tab. In this arrangement, an insulating ring 22 is provided at this position in order to provide insulation between the outer periphery of the annular plate 2601 and the positive electrode tab.
On the basis of the above embodiment, as shown in fig. 9, the upper end of the negative current collecting rod 26 is further provided with an external thread, the external thread is provided with a rotatable nut 210, and an insulating gasket 29 is further provided between the nut 210 and the pressing plate 28. This arrangement, where insulating washer 29 is provided, is intended to prevent the lower edge of nut 210 from contacting pressure plate 28, thereby causing a short circuit.
On the basis of the above embodiment, as shown in fig. 9 and 10, four connection holes for connecting the pressure plate 28 with the positive electrode connector are uniformly formed on the pressure plate 28, and a detachable connection member 211 is arranged in the connection holes, specifically, the connection holes are screw holes, and the connection member 211 is preferably a bolt or a screw. During wiring, the bolt or the screw is loosened, the electric wire is sleeved on the bolt or the nut 210, and the electric wire is screwed again.
On the other hand, the utility model also provides a high temperature energy storage battery, as shown in fig. 9, high temperature energy storage battery includes casing 1 and sets up in casing 1's seal structure 2, and encloses synthetic sealed cavity between casing 1 and the seal structure 2, the flourishing electrolyte in the sealed cavity, seal structure 2 specifically is as above seal structure 2. Compared with the high-temperature energy storage battery with the existing structure, the high-temperature energy storage battery with the structure has the advantages that the plurality of insulating pieces are arranged between the positive electrode joint and the negative electrode joint, and the plurality of sealing pieces are arranged between the negative electrode joint and the top cover 21, so that the insulating property and the sealing property of the sealing structure 2 are effectively improved, and the high-temperature energy storage battery with the structure can be effectively prevented from losing efficacy due to insufficient sealing and insulating properties.
On the basis of the above embodiment, as shown in fig. 9, a step is provided on the inner side of the top of the housing 1, and the end of the top cover 21 of the sealing structure 2 is overlapped on the step and is fixedly connected with the step, which may be welded. According to the arrangement mode, the sealing structure 2 and the shell 1 are welded together, so that the sealing effect of the high-temperature energy storage battery can be further improved. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (15)
1. A sealing structure is characterized by comprising a top cover (21), wherein a plurality of positive connectors and at least one negative connector are arranged on the top cover (21), a through hole is formed in the middle of the top cover (21), and the negative connector is arranged in the through hole and is insulated from the top cover (21);
the plurality of positive connectors are uniformly distributed on the periphery of the negative connectors, and one end of each positive connector is fixedly connected with the top cover (21);
a plurality of insulating parts are arranged between the positive electrode joint and the negative electrode joint;
a plurality of sealing elements are arranged between the negative electrode joint and the top cover (21).
2. The seal structure of claim 1, wherein the negative connector comprises a negative current collecting rod (26), and an annular plate (30) is disposed between two ends of the negative current collecting rod (26), wherein the annular plate (30) is disposed perpendicular to the negative current collecting rod (26).
3. The sealing structure according to claim 2, wherein a first insulating sheet (24) is further disposed between the annular plate (30) and the surface of the top cover (21), the first insulating sheet (24) is sleeved on the negative current collecting rod (26), and a sealing member is disposed between the first insulating sheet (24) and the surface of the top cover (21) and between the first insulating sheet (24) and the annular plate (30).
4. The sealing structure according to claim 3, characterized in that the sealing member comprises a first sealing ring (23) and a second sealing ring (25), the first sealing ring (23) being arranged between the first insulating sheet (24) and the surface of the top cover (21), the second sealing ring (25) being arranged between the first insulating sheet (24) and the annular plate (30).
5. The sealing structure of claim 4, characterized in that a first mounting groove (2101) is further arranged on the surface of the top cover (21), and the first sealing ring (23) is arranged in the first mounting groove (2101); still be equipped with second mounting groove (2601) on cyclic annular board (30), second sealing washer (25) set up in second mounting groove (2601).
6. The sealing structure according to claim 5, wherein the cross-sectional diameter of the first sealing ring (23) is 1.6-2.5 mm, and when the first sealing ring (23) is arranged in the first mounting groove (2101), the span between the inner side and the outer side of the first sealing ring (23) and the two sides of the first mounting groove (2101) is 0.4-1 mm;
the diameter of the cross section of the second sealing ring (25) is 1.6-2.5 mm, and when the second sealing ring (25) is arranged in the second mounting groove (2601), the span between the inner side and the outer side of the second sealing ring (25) and the two sides of the first mounting groove (2101) is 0.5-1 mm; or,
the diameter of the cross section of the first sealing ring (23) is 2.5-4 mm, and when the first sealing ring (23) is arranged in the first mounting groove (2101), the span between the inner side and the outer side of the first sealing ring (23) and the two sides of the first mounting groove (2101) is 0.8-1.5 mm;
the diameter of the cross section of the second sealing ring (25) is between 2.5 and 4mm, and when the second sealing ring (25) is arranged in the second mounting groove (2601), the span between the inner side and the outer side of the second sealing ring (25) and the two sides of the first mounting groove (2101) is between 0.8 and 1.5 mm.
7. The sealing structure according to claim 6, wherein the first sealing ring (23) and the second sealing ring (25) are both made of 304 stainless steel, the cross-sectional shape of the sealing structure is circular ring shape, and the wall thickness is 0.25-0.4 mm.
8. The sealing structure according to claim 7, characterized in that the surfaces of the first sealing ring (23) and the second sealing ring (25) are further provided with a gold or silver plating layer.
9. The sealing structure according to claim 3, wherein the number of the positive connectors is four, the four positive connectors are connected through a pressing plate (28), and the middle part of the pressing plate (28) is sleeved on the negative current collecting rod (26) and is insulated from the negative current collecting rod (26).
10. The sealing structure of claim 9, wherein a second insulating sheet (27) is further disposed between the pressing plate (28) and the upper surface of the annular plate (30), and the second insulating sheet (27) is sleeved on the negative current collecting rod (26).
11. The sealing structure according to claim 10, wherein an insulating ring (22) is further provided between the outer sides of the first insulating sheet (24) and the second insulating sheet (27) and the positive electrode terminal, and the insulating ring (22) is sleeved on the peripheries of the first insulating sheet (24) and the second insulating sheet (27).
12. The sealing structure of claim 11, characterized in that a rotatable nut (210) is further arranged at one end of the negative current collecting rod (26) far away from the top cover (21), and an insulating gasket (29) is further arranged between the nut (210) and the pressure plate (28).
13. The sealing structure according to claim 9, characterized in that four connecting holes (2102) respectively connected with the positive connectors are uniformly arranged on the pressure plate (28), and a detachable connecting piece (211) is further arranged in each connecting hole (2102).
14. A high temperature energy storage battery comprising a housing (1) and a sealing structure (2) arranged at an end of the housing (1), the housing (1) and the sealing structure (2) enclosing a closed cavity, characterized in that the sealing structure (2) is a sealing structure according to any one of claims 1 to 13.
15. A high temperature energy storage battery according to claim 14, characterized in that the inside of the top of the housing (1) is provided with a step, and the end of the top cover (21) of the sealing structure (2) is arranged on the step and is fixedly connected with the step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425725.6U CN206282895U (en) | 2016-12-23 | 2016-12-23 | A kind of high temperature energy-storage battery and its sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425725.6U CN206282895U (en) | 2016-12-23 | 2016-12-23 | A kind of high temperature energy-storage battery and its sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206282895U true CN206282895U (en) | 2017-06-27 |
Family
ID=59072152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621425725.6U Expired - Fee Related CN206282895U (en) | 2016-12-23 | 2016-12-23 | A kind of high temperature energy-storage battery and its sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206282895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531911A (en) * | 2016-12-23 | 2017-03-22 | 东莞威胜储能技术有限公司 | High-temperature energy storage battery and sealing structure thereof |
-
2016
- 2016-12-23 CN CN201621425725.6U patent/CN206282895U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531911A (en) * | 2016-12-23 | 2017-03-22 | 东莞威胜储能技术有限公司 | High-temperature energy storage battery and sealing structure thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201829511U (en) | Solar cell unit | |
| CN215578776U (en) | Cylindrical lithium ion battery with novel structure | |
| CN207925531U (en) | A kind of power battery head cover insulation system | |
| CN202585558U (en) | Power battery and top cover thereof | |
| CN103730623A (en) | End surface welding cylindrical lithium battery | |
| CN203826461U (en) | End-surface-welded cylindrical lithium battery | |
| CN208539026U (en) | A kind of lithium ion battery | |
| CN206282895U (en) | A kind of high temperature energy-storage battery and its sealing structure | |
| CN204067498U (en) | A kind of lithium battery with heat sinking function | |
| CN107887673B (en) | liquid metal fuel cell | |
| CN108110272A (en) | High-temperature solid fuel cell unit of integral structure and preparation method thereof is collected with sealing and electronics | |
| EP1418637A3 (en) | Solid-oxide fuel cell assembly having simplified arrangement of current collectors | |
| RU109921U1 (en) | ELECTROCHEMICAL DEVICE AND BATTERY OF ELECTROCHEMICAL DEVICES | |
| CN207602640U (en) | Battery cover board electrode assembly, battery cover board assembly and battery | |
| CN107994254B (en) | Cylindrical battery | |
| CN216389540U (en) | Lithium ion battery cover plate structure with anti-rotation pole | |
| CN217387315U (en) | Battery structure subassembly, battery and electric vehicle | |
| CN209947884U (en) | Battery capable of discharging at low rate | |
| CN214412671U (en) | Photovoltaic junction box | |
| CN106531911A (en) | High-temperature energy storage battery and sealing structure thereof | |
| CN213636215U (en) | Battery module electric connection structure | |
| CN110085950B (en) | Battery structure suitable for metal-air battery and battery pack structure thereof | |
| CN207676957U (en) | A kind of high power battery cap assembly and high power battery | |
| CN111585452A (en) | Novel voltage-sharing electrode for converter valve and installation assembly and installation method thereof | |
| CN213951367U (en) | Electrolytic cell copper bar connection sealing contact device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170627 Termination date: 20211223 |