CN202423404U - Solid electrolyte pipe for sodium-sulfur battery and sodium-sulfur battery - Google Patents
Solid electrolyte pipe for sodium-sulfur battery and sodium-sulfur battery Download PDFInfo
- Publication number
- CN202423404U CN202423404U CN2011205306890U CN201120530689U CN202423404U CN 202423404 U CN202423404 U CN 202423404U CN 2011205306890 U CN2011205306890 U CN 2011205306890U CN 201120530689 U CN201120530689 U CN 201120530689U CN 202423404 U CN202423404 U CN 202423404U
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- Prior art keywords
- solid electrolyte
- peristome
- vertical tube
- length
- tube part
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- 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
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Abstract
The utility model discloses a solid electrolyte pipe (4) for a NaS battery. The solid electrolyte pipe (4) comprises a straight cylinder part (41), a bottom part (42) formed at one end of the straight cylinder part and an open part (43) formed at the other end of the straight cylinder part. The solid electrolyte pipe (4) is characterized in that, as for the open part (43), the inner diameter of the open part (43) is equivalent to that of the straight cylinder part (41), the outer diameter of the open part (43) is larger than that of the straight cylinder part (41), a sealing surface for being jointed with a ceramic ring is arranged on the outer peripheral surface of the open part (43), a conical part (44) is arranged between the open part (43) and the straight cylinder part (41), the inner diameter of the conical part is equivalent to that of the straight cylinder part, the outer diameter of the conical part is gradually increased from the straight cylinder part to the open part so as to change from the outer diameter of the straight cylinder part to the outer diameter of the open part, and the relation between the length X of the open part and the length Y of the conical part is that X: Y equals 1: 6-1: 10. According to the structure, the internal resistance of the battery can be reduced and the high strength can be simultaneously ensured.
Description
Technical field
The utility model relates to a kind of sodium-sulphur battery solid electrolyte tube of using and the sodium-sulphur battery that possesses this solid electrolyte tube.
Background technology
Sodium-sulphur battery (below; Be called the Nas battery) be the high temperature secondary battery of working down at 300-350 ℃; In male receptacle, will isolate and be contained in inside and outside the solid electrolyte tube that forms by beta-alumina as the sulphur of anode active material with as the sodium of cathode active material; And adopt with the structure that is sealed into air-tight state in the male receptacle, so that active material is to be held with the non-contacting state of outside air.
The utility model content
The problem that utility model will solve
In this Nas battery, accounting for the most of internal resistance is solid electrolyte tube.Therefore, the output when suppressing battery discharge reduces, and the power loss when suppressing charging is less, and the wall thickness of the part that discharges and recharges of participating in solid electrolyte tube is thin to reduce internal resistance thereby preferably make.On the other hand, the life-span of Nas battery depends on the life-span of solid electrolyte tube, therefore needs solid electrolyte tube that enough intensity is arranged.Particularly, because solid electrolyte tube forms as one through member such as ceramic ring and male receptacle, so need have high strength with bonding part ceramic ring etc. with the solid electrolyte tube that receives stress.
The utility model proposes in light of this situation, and its purpose is, provides a kind of and make the internal resistance of battery little, has ability in the solid electrolyte tube of the intensity of long-term use with possess the Nas battery of this solid electrolyte tube.
Solve the method for problem
In order to reach above-mentioned purpose; The solid electrolyte tube of the utility model be possess vertical tube part, be formed on said vertical tube part an end the bottom and be formed on the solid electrolyte tube that the sodium-sulphur battery of the peristome of the said vertical tube part other end is used; It is characterized in that; With regard to said peristome, its internal diameter is identical with the internal diameter of said vertical tube part, and its external diameter is greater than the external diameter of said vertical tube part; Have at its outer peripheral face and to be used for the sealing surface that engages with ceramic ring; Between said peristome and said vertical tube part, be formed with tapered portion, the internal diameter of said tapered portion is identical with the internal diameter of said vertical tube part, thereby its external diameter is along with becoming the external diameter that becomes said peristome greatly from the external diameter of said vertical tube part gradually to said peristome from said vertical tube part; About the length of the tube axial direction of solid electrolyte tube, the relation of the length X of said peristome and the length Y of said tapered portion is X: Y=1: 6-1: 10.
At this, preferably, about the length of the tube axial direction of solid electrolyte tube, the relation of the length Z of the length X of said peristome, the length Y of said tapered portion and said vertical tube part and said bottom is (X+Y): Z=1: 3-1: 5.
In addition, preferably, about the wall thickness of solid electrolyte tube, the relation of the wall thickness t2 of the wall thickness t1 of said vertical tube part, said peristome and the wall thickness t3 of said bottom is 1.0mm＜t1＜2.5mm and t1＜t2＜t3.
In addition, preferably, about the wall thickness of solid electrolyte tube, the relation of the wall thickness t2 of the wall thickness t1 of said vertical tube part, said peristome and the wall thickness t3 of said bottom is t1: t2=1: 1.4-1: 2.0, t1: t3=1: 1.5-1: 2.3.。
In addition, the inner face of preferred said bottom and outside do not have the par.
In addition, the total length of the tube axial direction of preferred solid electrolyte tube is more than the 400mm and below the 600mm.
In addition, the external diameter of preferred said vertical tube part is more than the 55mm and below the 65mm.
In addition, preferably, surface roughness Ra is below 2.0 μ m, and the maximum height of surperficial protuberance is below 15 μ m.
In addition, the sodium-sulphur battery of the utility model possesses above-mentioned solid electrolyte tube and constitutes.
The utility model effect
If adopt the solid electrolyte tube and the Nas battery of the utility model; Then solid electrolyte tube possesses aforesaid peristome and the wall thickness thicker than vertical tube part wall thickness and becomes big tapered portion from vertical tube part gradually to peristome; And the relation through with the length Y of the length X of peristome and tapered portion is set at X: Y=1: 6-1: 10; Thereby the thinner internal resistance that can reduce battery of the wall ratio peristome that can make the vertical tube part that discharges and recharges of participating in battery; And the wall ratio vertical tube part through making peristome and tapered portion is thicker, can improve the intensity with the bonding part of ceramic ring.Therefore, can provide the internal resistance of battery to diminish, have the solid electrolyte tube and the Nas battery of ability in the intensity of long-term use.
Description of drawings
Fig. 1 is the cutaway view of Nas battery that possesses the solid electrolyte tube of the utility model.
Fig. 2 is the cutaway view of above-mentioned solid electrolyte tube.
Reference numeral
1 Nas battery
2 anode metal spares
4 solid electrolyte tubes
41 vertical tube parts
42 bottoms
43 peristomes
44 tapered portion
The wall thickness of t1 vertical tube part
The wall thickness of t2 peristome
The wall thickness of t3 bottom
The length of X peristome
The length of Y tapered portion
The length Z of Z vertical tube part and bottom
Embodiment
Below, describe with reference to the solid electrolyte tube and the Nas battery of accompanying drawing the utility model.As shown in Figure 1, Nas battery 1 possesses male receptacle 2.Male receptacle 2 accommodates: contain the fusion sulphur that is immersed in carbon felt etc.; Be used to hold the box 3 of motlten metal sodium; The solid electrolyte tube 4 that the round-ended cylinder shape is arranged, portion holds this box 3 within it, and has the function that sodium ion is seen through; The septal funnel 5 that the round-ended cylinder shape is arranged is configured in the clearance portion between box 3 and the solid electrolyte tube 4, separates predetermined distance with this box 3 and solid electrolyte tube 4 respectively and is provided with.
Solid electrolyte tube 4 combines with male receptacle 2 with anode metal spare 7 through the dead ring (being equivalent to ceramic ring) 6 of alpha-oxidation aluminum, and this dead ring 6 adopts glass bond in its peristome 43.Hot press has cathodic metal spare 8 on dead ring 6, and welding is fixed with negative electrode lid 9 on this cathodic metal spare 8.Upper space at box 3 has inert gases such as nitrogen, argon gas with the authorized pressure inclosure, and this inert gas applies from the pressure of the direction that flows out towards the aperture that is located at cartridge bottom 31 sodium in the box 3.
Have in the Nas battery 1 of this structure; During discharge in the sodium next door pipe 5 of the aperture of box 3 31 supplies and the gap between the box 3 after move the top, cross the upper end of septal funnel 5, move downwards in the gap between next door pipe 5 and the solid electrolyte tube 4; And then; Become sodium ion and see through solid electrolyte tube 4, react the generation sodium polysulfide with sulphur in the male receptacle 2 with through the electronics that external circuit comes.When charging, opposite during with discharge, be used to generate the reaction of sodium and sulphur.
Male receptacle 2 has the bottom 22 of a portion 21 and the bottom of this one 21 of obstruction.In addition, male receptacle 2 is formed by soft metals such as aluminum or aluminum alloy.
In addition, the tube portion 21 of male receptacle 2 possesses necking part 23, and the internal diameter of this necking part 23 is less than the internal diameter of other parts of this one 21.Through necking part 23 relax since the male receptacle that variations in temperature produced 2 of Nas battery 1 in the expansion and the contraction of axis direction.
In addition, the Nas battery 1 of this embodiment possesses the rigid container 10 of the employing arbitrary structures that is used to hold male receptacle 2.Rigid container 10 is formed by hard metals such as stainless steels.Rigid container 10 has: end tube portion 81 is arranged, under the state of bottom surface that covers male receptacle 2 and side, hold male receptacle 2; Ring-shaped protrusion 82, top of the upper end of the tube portion 21 of direction and anode container 2 is outstanding and form to the inside from this upper end that end tube portion 81 arranged for it.When the thermal expansion of male receptacle 2, thereby the ring-shaped protrusion 82 of rigid container 10 is connected to the elongation of the upper end restriction male receptacle 2 of a portion 21 at above-below direction.
As shown in Figure 2, solid electrolyte tube 4 possesses vertical tube part 41, be formed on the bottom 42 of vertical tube part 41 1 ends and be formed on the peristome 43 of vertical tube part 41 other ends.With regard to peristome 43, its internal diameter is identical with the internal diameter of vertical tube part 41, and its external diameter is greater than the external diameter of vertical tube part 41, has at its outer peripheral face to be used for the sealing surface that engages with dead ring 6.In addition; Be formed with tapered portion 44 between peristome 43 and the vertical tube part 41, this tapered portion 44 forms as follows, and its internal diameter is identical with the internal diameter of vertical tube part 41; Its external diameter along with from vertical tube part 41 to peristome 43, thereby become the external diameter that becomes peristome 43 greatly from the external diameter of vertical tube part 41 gradually.In addition, contain the fusion sulphur that is immersed in carbon felt etc. and mainly in vertical tube part 41, contact with solid electrolyte tube 4, vertical tube part 41 is the parts of mainly participating in battery charging and discharging.
This solid electrolyte tube 4 can pass through the known method manufacturing.For example, can generate the ratio of beta-alumina, mediation α-Al
2O
3Powder stock, Na
2CO
3, each raw material of magnesium-aluminate, in water, use ball mill evenly to mix and make mud.Then, after the mud that obtains granulated with spray dryer, be configured as the regulation shape by isostatic pressing machine.Then, formed body is contained in burns till under the state in the saggar(-ger) of MgO system and obtain solid electrolyte tube 4.
In addition, in the solid electrolyte tube 4 of the utility model, about the length of the tube axial direction of solid electrolyte tube 4, the relation of the length Y of the length X of peristome 43 and tapered portion 44 is set at X: Y=1: 6-1: 10.When the length Y of tapered portion 44 than above-mentioned scope more in short-term, peristome 43 is insufficient with near the intensity the tapered portion 44.On the other hand; When the length Y of tapered portion 44 is longer than above-mentioned scope; Tapered portion 44 will reach originally as vertical tube part 41 and the zone of using; When such tapered portion 44 is used as the part that discharges and recharges of participating in battery,, therefore can cause the increase of the internal resistance of cell because the wall thickness of the wall ratio vertical tube part 41 of tapered portion 44 is thick.
In addition, about the length of the tube axial direction of solid electrolyte tube 4, the relation of the length Z of the length Y of the length X of peristome 43, tapered portion 44 and vertical tube part 41 and bottom 42 is preferably (X+Y): Z=1: 3-1: 5.Through being set, can access solid electrolyte tube 4 more balanced aspect internal resistance and intensity in this scope.Promptly; When the length Z of vertical tube part 41 and bottom 42 than above-mentioned scope more in short-term, the length of the vertical tube part 41 of wall thickness shortens relatively, is unfavorable for reducing the internal resistance of battery; On the other hand; When the length Z of vertical tube part 41 and bottom 42 was longer than above-mentioned scope, the length of peristome 43 and tapered portion 44 shortened relatively, was unfavorable for guaranteeing near the intensity peristome 43 and the tapered portion 44.
In addition, about wall thickness, the relation of the wall thickness t3 of the wall thickness t1 of vertical tube part 41, the wall thickness t2 of peristome 43 and bottom 42 is preferably 1.0mm＜t1＜2.5mm, t1＜t2＜t3.Through being set, can access solid electrolyte tube 4 more balanced on aspect internal resistance and the intensity in this scope.That is, when the wall thickness t1 of vertical tube part 41 is thinner than above-mentioned scope, be unfavorable for guaranteeing the intensity of vertical tube part 41, on the other hand, when the wall thickness t1 of vertical tube part 41 is thicker than above-mentioned scope, be unfavorable for reducing the internal resistance of battery.In addition; Receive near the peristome 43 from the stress of dead ring 6 and need higher intensity than vertical tube part 41, in addition, when battery temperature descends; Bottom 42 is stacked on the sodium polysulfide jack-up from the bottom up of the below of solid electrolyte tube 4, therefore needs higher intensity than vertical tube part 41.In addition, the beta oxidation aluminum pipe is not to be complete straight tube, and bottom 42 is again the place that stress takes place on the structure when assembled battery easily, and therefore bottom 42 needs higher intensity than vertical tube part.
In addition, about wall thickness, the relation of the wall thickness t3 of the wall thickness t1 of vertical tube part 41, the wall thickness t2 of peristome 43 and bottom 42 is preferably t1: t2=1: 1.4-1: 2.0, t1: t3=1: 1.5-1: 2.3.Through being set, can access solid electrolyte tube 4 more balanced on aspect internal resistance and the intensity in this scope.
In addition, the inner face and the outside of preferred bottom 42 do not have the par.Through making the bottom 42 have this shape, can delay the situation that above-mentioned stress concentrates on bottom 42, and can more effectively prevent the breakage of bottom 42, stress concentrates on bottom 42 and is because when battery cools off sodium polysulfide from the bottom up jack-up cause.
In addition; In the solid electrolyte tube 4 of the utility model of the vertical tube part that possesses above-mentioned that kind 41, bottom 42, peristome 43 and tapered portion 44; The total length of tube axial direction is preferably more than the 400mm and below the 600mm, and in addition, the external diameter of vertical tube part is preferably more than the 55mm and below the 65mm.Through the total length of solid electrolyte tube 4 and the external diameter of vertical tube part 41 are set in this scope, can access solid electrolyte tube 4 more balanced aspect internal resistance and intensity.
In addition, preferably, the surface roughness Ra of solid electrolyte tube 4 is below 2.0 μ m, and the maximum height RmaX of surperficial protuberance is below 15 μ m.In addition, at this, so-called surface roughness Ra is meant the mean roughness of centre of surface line.When the maximum height RmaX of surface roughness Ra or surperficial protuberance is bigger than above-mentioned scope, and contains the contact area that is immersed in the fusion sulphur in the carbon felt etc. and reduce, big thereby the internal resistance of battery becomes.
If adopt the solid electrolyte tube 4 and Nas battery 1 of this embodiment; As stated; Solid electrolyte tube 4 possesses wall ratio vertical tube part 41 thicker peristomes 43 and gradually becomes big tapered portion 44 from vertical tube part 41 to peristome 43 with wall thickness; And the relation through with the length Y of the length X of peristome 43 and tapered portion 44 is set at X: Y=1: 6-1: 10, and make the wall ratio peristome 43 of the vertical tube part that discharges and recharges 41 of participating in battery thinner, thereby can reduce the internal resistance of battery; And the wall thickness of the wall ratio vertical tube part 41 through making peristome 43 and tapered portion 44 is thicker, can improve the intensity with the bonding part of dead ring 6.Therefore, can provide the internal resistance of battery low, have ability in the solid electrolyte tube 4 of the intensity of long-term use with possess the Nas battery 1 of this solid electrolyte tube 4.
Claims (10)
1. solid electrolyte tube, be possess vertical tube part, be formed on said vertical tube part an end the bottom and be formed on the solid electrolyte tube that the sodium-sulphur battery of the peristome of the said vertical tube part other end is used, it is characterized in that,
With regard to said peristome, its internal diameter is identical with the internal diameter of said vertical tube part, and its external diameter is greater than the external diameter of said vertical tube part, have at its outer peripheral face to be used for the sealing surface that engages with ceramic ring,
Between said peristome and said vertical tube part, be formed with tapered portion; The internal diameter of said tapered portion is identical with the internal diameter of said vertical tube part; Thereby its external diameter is along with becoming the external diameter that becomes said peristome greatly from the external diameter of said vertical tube part gradually to said peristome from said vertical tube part
About the length of the tube axial direction of solid electrolyte tube, the relation of the length X of said peristome and the length Y of said tapered portion is X: Y=1: 6-1: 10.
2. solid electrolyte tube according to claim 1; It is characterized in that; About the length of the tube axial direction of solid electrolyte tube, the relation of the length Z of the length X of said peristome, the length Y of said tapered portion and said vertical tube part and said bottom is (X+Y): Z=1: 3-1: 5.
3. solid electrolyte tube according to claim 2 is characterized in that, about wall thickness, the relation of the wall thickness t2 of the wall thickness t1 of said vertical tube part, said peristome and the wall thickness t3 of said bottom is 1.0mm＜t1＜2.5mm and t1＜t2＜t3.
4. solid electrolyte tube according to claim 3; It is characterized in that; About wall thickness, the relation of the wall thickness t2 of the wall thickness t1 of said vertical tube part, said peristome and the wall thickness t3 of said bottom is t1: t2=1: 1.4-1: 2.0, t1: t3=1: 1.5-1: 2.3.
5. solid electrolyte tube according to claim 4 is characterized in that the inner face of said bottom and outside do not have the par.
6. solid electrolyte tube according to claim 5 is characterized in that, the total length of the tube axial direction of solid electrolyte tube is more than the 400mm and below the 600mm.
7. solid electrolyte tube according to claim 6 is characterized in that, the external diameter of said vertical tube part is more than the 55mm and below the 65mm.
8. according to arbitrary described solid electrolyte tube in the claim 1 to 7, it is characterized in that surface roughness Ra is below 2.0 μ m, and the maximum height of surperficial protuberance is below 15 μ m.
9. a sodium-sulphur battery is characterized in that, possesses each described solid electrolyte tube in the claim 1 to 7.
10. a sodium-sulphur battery is characterized in that, possesses the described solid electrolyte tube of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205306890U CN202423404U (en) | 2011-12-16 | 2011-12-16 | Solid electrolyte pipe for sodium-sulfur battery and sodium-sulfur battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205306890U CN202423404U (en) | 2011-12-16 | 2011-12-16 | Solid electrolyte pipe for sodium-sulfur battery and sodium-sulfur battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202423404U true CN202423404U (en) | 2012-09-05 |
Family
ID=46748134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205306890U Expired - Lifetime CN202423404U (en) | 2011-12-16 | 2011-12-16 | Solid electrolyte pipe for sodium-sulfur battery and sodium-sulfur battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202423404U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123988A (en) * | 2012-12-12 | 2013-05-29 | 上海电气钠硫储能技术有限公司 | Sodium-sulfur battery |
| CN111740149A (en) * | 2020-07-07 | 2020-10-02 | 河南大学 | Preparation method of V-shaped nanowire solid composite electrolyte |
-
2011
- 2011-12-16 CN CN2011205306890U patent/CN202423404U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123988A (en) * | 2012-12-12 | 2013-05-29 | 上海电气钠硫储能技术有限公司 | Sodium-sulfur battery |
| CN103123988B (en) * | 2012-12-12 | 2015-01-14 | 上海电气钠硫储能技术有限公司 | Sodium-sulfur battery |
| CN111740149A (en) * | 2020-07-07 | 2020-10-02 | 河南大学 | Preparation method of V-shaped nanowire solid composite electrolyte |
| CN111740149B (en) * | 2020-07-07 | 2022-09-23 | 河南大学 | Preparation method of V-shaped nanowire solid composite electrolyte |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |