CN202352789U - Sodium-sulfur cell - Google Patents
Sodium-sulfur cell Download PDFInfo
- Publication number
- CN202352789U CN202352789U CN2011205277614U CN201120527761U CN202352789U CN 202352789 U CN202352789 U CN 202352789U CN 2011205277614 U CN2011205277614 U CN 2011205277614U CN 201120527761 U CN201120527761 U CN 201120527761U CN 202352789 U CN202352789 U CN 202352789U
- Authority
- CN
- China
- Prior art keywords
- solid electrolyte
- collector body
- electrolyte tube
- sodium
- male receptacle
- 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 - Lifetime
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a sodium-sulfur cell (1). The sodium-sulfur cell (1) is provided with a metal anode container (2), a solid electrolyte pipe (3) and a felt-shaped first anode current collector (4), wherein the solid electrolyte pipe (3) is placed in the anode container and the current collector is soaked in sulfur and placed in the anode container in the state of contacting with the inner side of the anode container and the outer side of the solid electrolyte pipe. The sodium-sulfur cell is also provided with a felt-shaped second anode current collector (8) which is soaked in sulfur and placed in the anode container in the state of contacting with the upper surface of the bottom cover (22) of the anode container and the bottom surface of the solid electrolyte pipe. Each anode current collector comprises a felt-shaped base material which is composed of carbon fiber, and glass fiber complexed on the base material. The glass fiber of the second anode current collector accounts for less than 20% of the base material by weight. By arranging the second anode current collector which can ensure the damping performance, between the upper surface of the bottom cover (22) of the anode container and the bottom surface of the solid electrolyte pipe, the solid electrolyte pipe can not be broken.
Description
Technical field
The utility model relates to a kind of sodium-sulphur battery.
Background technology
Sodium-sulphur battery (below, be referred to as " NaS battery ") be the high temperature secondary battery of working down at 300-350 ℃, adopt following structure: in male receptacle, will be as anode active material
Sulphur and as the sodium of cathode active material isolate respectively be contained in the solid electrolyte tube that forms by beta-alumina inside and outside, and with being sealed into air-tight state in the male receptacle, make active material keep not and outer gas state of contact.
Because the anode active material sulphur of NaS battery is insulant,, to dispose anode current collector usually for guaranteeing the conducting between anode and the negative electrode, the internal resistance of reduction battery.Anode current collector is that sulphur is contained the basis material that is dipped in the felt shape that carbon fiber with conductivity constitutes and the parts that constitute, to be contained in the male receptacle with male receptacle medial surface and solid electrolyte tube lateral surface state of contact.
And then such anode current collector has through the acupuncture complexing on the surface that engages a side with solid electrolyte tube squeezes into the high resistance area that insulating properties material glass fiber forms.Because high resistance area reduces near the conductivity of the contact-making surface of solid electrolyte tube and anode current collector, electronics is given and accepted to react and only near the contact-making surface of solid electrolyte tube and anode current collector, is carried out in the time of therefore can preventing to charge.Therefore; Separate out insulant sulphur in this part; Thereby can prevent to occur along with the carrying out of charging reaction by the rise phenomenon of the restorative reduction of charging that caused (even residual have sodium polysulfide, the reaction of also not charging, the incomplete phenomenon of charging) of the internal resistance of cell.
The utility model content
The problem that utility model will solve
But, be typically provided with certain interval on the bottom of male receptacle and between the solid electrolyte tube bottom surface.But; If the temperature of battery is reduced to the temperature that sulphur solidifies from serviceability temperature; Then generation such as sodium polysulfide is solidified and has been limited male receptacle and solid electrolyte tube in this gap; And temperature further descends and arrives in the process of normal temperature under this state, and the difference of the solid electrolyte tube that is made up of pottery and the coefficient of thermal expansion of metallic male receptacle causes said gap smaller, therefore; In the solid electrolyte tube bottom local stress taking place, thereby has the damaged problem of this solid electrolyte tube.
The utility model is conceived to such prior art problem and makes, and its purpose is to provide a kind of stress that produces at solid electrolyte tube when reducing the battery cooling and can prevents the sodium-sulphur battery that solid electrolyte tube is damaged.
The means of dealing with problems
For achieving the above object, the NaS battery of the utility model, it possesses: the metallic male receptacle, it has a portion and the bottom that stops up this subordinate end; The solid electrolyte tube that bottom tube-like is arranged, it is contained in the said male receptacle and is filled with sodium be separated by fixed intervals and inside of said male receptacle inner face; Felt shape first anode collector body, it contains and is soaked with sulphur and to be contained in the said male receptacle with said male receptacle medial surface and said solid electrolyte tube lateral surface state of contact.It is characterized in that; It also possesses felt shape second plate collector body; Its contain be soaked with sulphur and be contained in the said male receptacle with the bottom surface state of contact of said solid electrolyte tube above the bottom of said male receptacle; Said first anode collector body and second plate collector body comprise the felt shape basis material that is made up of carbon fiber and the glass fiber that is complexed to said basis material, the glass fiber of said second plate collector body with respect to the weight ratio of said basis material below 20%.
Preferably, be spaced apart more than 0.5 times below 5 times of said solid electrolyte tube bottom wall thickness above the bottom of said male receptacle and between the bottom surface of solid electrolyte tube here.
In addition, preferably, the bottom corner of said solid electrolyte tube forms the curved surface with regulation radius of curvature, said second plate collector body top forming with the corresponding mode of said curved surface, and contact with at least a portion of said curved surface.
In addition, preferably, the compression ratio of said second plate collector body is below 70%.In addition, the volume after the volume before this compression ratio is meant compression deducts compression is afterwards divided by the value of compressing preceding volume.
The utility model effect
On the male receptacle bottom and the interval between the solid electrolyte tube bottom surface second plate collector body that can guarantee resiliency is set, reduce the stress that battery when cooling produces at solid electrolyte tube thus, thereby can prevent the breakage of solid electrolyte tube.
Description of drawings
Fig. 1 is the profile of NaS battery of first embodiment of the utility model.
Fig. 2 is the profile of NaS battery of second embodiment of the utility model.
Description of reference numerals
1,11NaS battery
2 anode metal spares
3 solid electrolyte tubes
4 sidepiece anode current collector (first anode collector body)
8,18 bottom anode collector bodies (second plate collector body)
21 portions
22 bottoms
Embodiment
Followingly describe with reference to the NaS battery of accompanying drawing to first embodiment of the utility model.As shown in Figure 1, NaS battery 1 possesses: male receptacle 2, and it has a portion 21 and the bottom 22 that stops up tube portion 21 bottoms; The solid electrolyte tube 3 that bottom tube-like is arranged, its be contained in the male receptacle 2 and be separated by predetermined distance and be filled with sodium of male receptacle 2 inner faces in inside; The sidepiece anode current collector 4 of felt shape (first anode collector body), it contains and is soaked with sulphur and to be contained in the male receptacle 2 with male receptacle 2 medial surfaces and solid electrolyte tube 3 lateral surface state of contact; The bottom anode collector body 8 of felt shape (second plate collector body), its contain be soaked with sulphur and with the top and solid electrolyte tube 3 bottom surface state of contact of the bottom 22 of male receptacle 2 under be contained in male receptacle 2.In the utility model, this bottom anode collector body 8 plays a role as padded coaming, the stress that produces at solid electrolyte tube 3 when reducing the battery cooling, thus prevent the breakage of solid electrolyte tube 3.
The dead ring 5 of solid electrolyte tube 3 through formations such as Alpha-aluminas, the anode metal spares 6 that are engaged in below the dead ring 5 engage with male receptacle 2.In addition, hot press has cathodic metal spare 7 above the dead ring 6.
Male receptacle 2 is formed by soft metals such as aluminum or aluminum alloy.For example, bottom 22 makes male receptacle 2 through being waited with the state welding that is embedded in a portion 21 bottoms.Solid electrolyte tube 3 is formed by beta-alumina with selective permeation sodium ion function etc.
Sidepiece anode current collector 4 comprises the felt shape basis material that is made up of carbon fiber and is complexed to the glass fiber in the basis material with bottom anode collector body 8.In addition, usually, glass fiber is complexed in the basis material from solid electrolyte tube 3 sides, extends and be distributed in solid electrolyte tube 3 side surfaces and the basis material inside of basis material from solid electrolyte tube 3 side direction male receptacles 2 sides.
The sidepiece anode current collector 4 before the impregnation sulphur and the making of bottom anode collector body 8 can be used the acupuncture complexing machine of the felt processing that is used for nonwoven fabrics etc.Acupuncture complexing machine is the device that can operate as follows repeatedly, that is: will be in the way of top ends, long dimensional directions outstandingly be provided with a plurality of needle plates that the metal needle of hook arranged and vertically squeeze into the processing object thing and extract.In addition, acupuncture complexing machine also is provided with mobile units such as conveyer belt, and this mobile unit can make processing object thing and needle plate squeeze into synchronously and move to horizontal direction.
If adopt such acupuncture complexing machine; Squeeze into needle plate from glass fiber side direction laminate; The glass fiber and the metal needle that then are stuck in the hook portion of metal needle together are driven into basis material on thickness direction; Wherein, laminate is to form in that substrate material surface is overlapping through the cloth-like body (for example nonwoven fabrics etc.) that will be formed by glass fiber, continuous shape body.And then, making basis material when horizontal direction moves, squeeze into needle plate, just can squeeze into glass fiber with uniform interval on the whole thus at basis material with conveyer belt etc.
In the laminate of basis material and glass fiber, continue to squeeze into needle plate, then glass fiber is driven in the basis material and reduces gradually, forms the high resistance area that glass fiber constitutes with the surface in that basis material is inner.Further proceed to squeeze into operation, then finally constitute a part of exposing surface of the carbon fiber of basis material.
Because basis material one side surface is high by the resistance of high resistance area covering, this part; Only near the contact-making surface of solid electrolyte tube 3 and sidepiece anode current collector 4 or bottom anode collector body 8, separate out insulant sulphur when sidepiece anode current collector 4 and the bottom anode collector body 8 that therefore, forms high resistance area like this can prevent to charge and form the situation of insulating barrier.Therefore, can not rise along with the internal resistance of cell that carries out of charging reaction, the restorative height that charges is preferred from this point.
In addition, form high resistance area owing to squeeze into glass fiber, so glass fiber is configured on the thickness direction of basis material through the acupuncture complexing.To be configured on the thickness direction of basis material the excellent glass fiber of the wetability of sodium polysulfide, then sodium polysulfide moves along this glass fiber, thereby the sodium polysulfide on promotion sidepiece anode current collector 4 and the bottom anode collector body 8 is mobile.
In addition, bottom anode collector body 8 forms in the mode below 20% with the weight ratio of glass fiber with respect to basis material.If glass fiber surpasses 20% with respect to the weight ratio of basis material, then reduce as the carbon fiber of basis material and the intensity of bottom anode collector body 8 is reduced, resiliency is impaired.
In addition, preferably, the compression ratio of bottom anode collector body 8 is below 70%.If compression ratio is greater than 70%, thereby then become big, so breakage might appear in the junction surface because the restoring force of bottom anode collector body 8 becomes the stress that makes the junction surface that acts on solid electrolyte tube 3 and dead ring 5 greatly.
In addition, preferably, above the bottom of male receptacle 2 22 and the interval c between the bottom surface of solid electrolyte tube 3 be more than 0.5 times below 5 times of solid electrolyte tube 3 bottom wall thickness t.If at interval c is less than 0.5 times of wall thickness t, then bottom anode collector body 8 can't obtain enough resiliencies.In addition, if at interval c is greater than 5 times of wall thickness t, the quantitative change of the sodium polysulfide that in the c of interval, solidifies when then lowering the temperature etc. is many and make the stress that produces at solid electrolyte tube become big, and solid electrolyte tube 3 damaged danger uprise.
Then, with reference to Fig. 2 second embodiment of the utility model is described.The NaS battery 11 of second embodiment is different from first embodiment except the shapes above the bottom anode collector body 18, other identical with the first embodiment structure.Particularly, the bottom corner 3a of solid electrolyte tube 3 forms the curved surface with regulation radius of curvature, and top and this curved surface of bottom anode collector body 18 forms accordingly, and almost contacts with curved surface is whole.If adopt the NaS battery 1 of this embodiment, can further improve the resiliency of bottom anode collector body 18.In addition, if contact with at least a portion of the curved surface of bottom corner 3a above the bottom anode collector body 18, then can further improve the resiliency of bottom anode collector body 18.
Claims (4)
1. sodium-sulphur battery, it possesses: the metallic male receptacle, it has a portion and the bottom that stops up this subordinate end; The solid electrolyte tube that bottom tube-like is arranged, it is contained in the said male receptacle and is filled with sodium be separated by fixed intervals and inside of the inner face of said male receptacle; Felt shape first anode collector body, it contains and is soaked with sulphur and to be contained in the said male receptacle with the medial surface of said male receptacle and the lateral surface state of contact of said solid electrolyte tube, it is characterized in that,
It also possesses felt shape second plate collector body, its contain be soaked with sulphur and be contained in the said male receptacle with the contacted state in bottom surface of said solid electrolyte tube above the bottom of said male receptacle,
Said first anode collector body and second plate collector body comprise felt shape basis material that is made up of carbon fiber and the glass fiber that is complexed to said basis material,
The glass fiber of said second plate collector body with respect to the weight ratio of said basis material below 20%.
2. sodium-sulphur battery according to claim 1 is characterized in that, is spaced apart more than 0.5 times and below 5 times of wall thickness of said solid electrolyte tube bottom above the bottom of said male receptacle and between the bottom surface of solid electrolyte tube.
3. sodium-sulphur battery according to claim 2 is characterized in that the bottom corner of said solid electrolyte tube forms the curved surface with regulation radius of curvature,
Said second plate collector body top forming with the corresponding mode of said curved surface, and contact with at least a portion of said curved surface.
4. sodium-sulphur battery according to claim 3 is characterized in that the compression ratio of said second plate collector body is below 70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205277614U CN202352789U (en) | 2011-12-16 | 2011-12-16 | Sodium-sulfur cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205277614U CN202352789U (en) | 2011-12-16 | 2011-12-16 | Sodium-sulfur cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202352789U true CN202352789U (en) | 2012-07-25 |
Family
ID=46541761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205277614U Expired - Lifetime CN202352789U (en) | 2011-12-16 | 2011-12-16 | Sodium-sulfur cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202352789U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123989A (en) * | 2012-12-12 | 2013-05-29 | 上海电气钠硫储能技术有限公司 | Composite graphite felt for positive electrode of sodium-sulfur battery |
| CN103490102A (en) * | 2013-10-17 | 2014-01-01 | 上海电气钠硫储能技术有限公司 | Positive electrode of sodium-sulfur battery |
| CN103500856A (en) * | 2013-10-17 | 2014-01-08 | 上海电气钠硫储能技术有限公司 | Sodium-sulfur cell |
| CN107046133A (en) * | 2017-03-16 | 2017-08-15 | 成都新柯力化工科技有限公司 | A kind of lithium battery anode body and preparation method using aluminum phosphate foam glass as collector |
-
2011
- 2011-12-16 CN CN2011205277614U patent/CN202352789U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123989A (en) * | 2012-12-12 | 2013-05-29 | 上海电气钠硫储能技术有限公司 | Composite graphite felt for positive electrode of sodium-sulfur battery |
| CN103123989B (en) * | 2012-12-12 | 2015-05-20 | 上海电气钠硫储能技术有限公司 | Composite graphite felt for positive electrode of sodium-sulfur battery |
| CN103490102A (en) * | 2013-10-17 | 2014-01-01 | 上海电气钠硫储能技术有限公司 | Positive electrode of sodium-sulfur battery |
| CN103500856A (en) * | 2013-10-17 | 2014-01-08 | 上海电气钠硫储能技术有限公司 | Sodium-sulfur cell |
| CN103500856B (en) * | 2013-10-17 | 2015-10-28 | 上海电气钠硫储能技术有限公司 | A kind of sodium-sulphur battery |
| CN107046133A (en) * | 2017-03-16 | 2017-08-15 | 成都新柯力化工科技有限公司 | A kind of lithium battery anode body and preparation method using aluminum phosphate foam glass as collector |
| CN107046133B (en) * | 2017-03-16 | 2019-07-19 | 上海太洋科技有限公司 | It is a kind of using aluminum phosphate foam glass as the lithium battery anode body and preparation method of collector |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |