CN203445160U - Metal shell of sodium-sulfur battery - Google Patents
Metal shell of sodium-sulfur battery Download PDFInfo
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- CN203445160U CN203445160U CN201320327234.8U CN201320327234U CN203445160U CN 203445160 U CN203445160 U CN 203445160U CN 201320327234 U CN201320327234 U CN 201320327234U CN 203445160 U CN203445160 U CN 203445160U
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- sodium
- metal shell
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- alloy pipe
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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 relates to a metal shell of a sodium-sulfur battery and belongs to the technical field of new energy. The metal shell in the utility model comprises an aluminum alloy pipe (1) and an aluminum alloy bottom cover (2), wherein two ends of the aluminum alloy pipe (1) are opened; the aluminum alloy bottom cover (2) is welded at one end of the aluminum alloy pipe (1), so that the welded end is sealed; a conductive layer (3) is coated on an inner surface of the metal shell. Compared with the prior art, the metal shell of the sodium-sulfur battery is high in structural corrosion resistance, excellent in welding performance, high in strength and simple in processing and is used for a sodium-sulfur battery, the service life of the battery can be prolonged, the safety of the battery is improved, high conductivity can be kept in a molten sulfur and sodium polysulfide corrosive environment, and the sealing property and the strength are kept.
Description
Technical field
The utility model relates to a kind of shell of battery, and more particularly, the utility model relates to a kind of sodium-sulphur battery metal shell, belongs to technical field of new energies.
Background technology
Sodium-sulphur battery is a kind of secondary cell of high-energy-density, has been successfully applied to the aspects such as the peak load that disappears, regenerative resource adjusting, emergency power supply.Sodium-sulphur battery is to using sodium metal as negative pole, beta-Al
2o
3pottery is as electrolyte and barrier film, sulphur or sodium polysulfide as positive active material, and both positive and negative polarity has metal or material with carbon element as collector, and battery outside is the higher metal shell of intensity normally.The working temperature of sodium-sulphur battery is 300～400 ℃, and sulphur or sodium polysulfide anodal under this working temperature are molten states, have stronger corrosivity, and the surface treatment of the shell being in contact with it and collector and structure are all had higher requirements.In this corrosivity operational environment, conventional secondary cell shell and current collector material, as mild steel, stainless steel, copper, nickel etc. are all difficult to keep for a long time satisfactory electrical conductivity, sealing and intensity.If shell and collector are subject to sulphur or sodium polysulfide seriously corroded, will cause the problems such as internal resistance of cell rising, serious polarization, capacity loss, even inner active material leak, affect useful life and the fail safe of battery.
It is CN202282389U that State Intellectual Property Office discloses a publication number in 2012.6.20, name is called the utility model patent of " a kind of sodium-sulphur battery housing ", this patent relates to a kind of sodium-sulphur battery housing, be characterized in, adopt crystalline carbon material as shell base material, the surfaces externally and internally of this shell base material has insulating heat conducting ceramic coating.The utility model sodium-sulphur battery housing has enclosure interior base material good heat conductivity, the advantage of housing and external environment condition good heat insulating, thereby power consumption is few, sodium-sulphur battery housing can be switched on and is heated to 300～350 ℃, has the incomparable advantage of traditional stainless steel sodium-sulphur battery housing.Adopt the utility model sodium-sulphur battery housing effectively to improve the useful life of sodium-sulphur battery.
Above-mentioned sodium-sulphur battery housing adopts crystalline carbon material as base material, and outer surface has insulating heat conducting ceramic coating, and the sheathing material preparation technology that proposes is more complicated, cost is higher, its structure welding performance is bad, resistance to corrosion and intensity low.
Utility model content
The structure that the utility model is intended to solve sodium-sulphur battery housing of the prior art causes manufacturing process complicated, and the problem that performance is not good, provides a kind of sodium-sulphur battery metal shell, and it is simple in structure, improves welding performance and resistance to corrosion and intensity.
To achieve these goals, concrete technical scheme of the present utility model is as follows:
A kind of sodium-sulphur battery metal shell, it is characterized in that: described metal shell comprises aluminium-alloy pipe and aluminium alloy bottom, the described equal opening in aluminium-alloy pipe two ends, described aluminium alloy bottom is welded on one end of described aluminium-alloy pipe, make that one end sealing of its welding, described metal shell inner surface is coated with conductive layer.
The pipe thickness t1 of aluminium-alloy pipe described in the utility model is 0.5～5mm, and outside diameter d 1 is 20～150mm, and height h1 is external diameter 4～12 times.
The opening part at aluminium-alloy pipe described in the utility model two ends is the step-like opening of two-stage step.
The step place thickness t 2 of the above-mentioned step-like opening of two-stage is less than the pipe thickness t1 of aluminium-alloy pipe, is 0.3～4.8mm; The shoulder height h2 of the described step-like opening of two-stage is 0.2～10mm.
Aluminium alloy bottom described in the utility model is cylinder.
Aluminium alloy bottom described in the utility model is the step-like cylinder of two-stage step.
Conductive layer described in the utility model is nickel chromium triangle coating, and thickness is 10-300 μ m.
The useful technique effect that the utility model brings:
1, compared with prior art, the structure resistance to corrosion of sodium-sulphur battery metal shell of the present utility model is strong, good welding performance, intensity is high, processing is simple, useful life and the fail safe that for sodium-sulphur battery, can improve battery, can in molten sulfur and sodium polysulfide corrosive atmosphere, keep good conductive capability, and keep sealing and intensity.
2, for electrolyte, be earthenware, the sulphur utmost point is at the cylindrical battery in electrolytic tube outside, and metal shell of the present invention also can be used as sulphur utmost point collector simultaneously.Its conductive layer and preferred nickel chromium triangle coating, the conductive capability in the time of can further guaranteeing as collector.
3, the utility model is preferred, and the two ends of aluminium-alloy pipe and aluminium alloy bottom are designed to step-like, can make them directly and and other parts between can add easily assembling, be also conducive to welding.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model aluminium alloy bottom is the step-like cylinder of two-stage step, and aluminium-alloy pipe is cylindrical structural representation;
Fig. 3 is that the utility model aluminium alloy bottom is cylinder, and aluminium-alloy pipe both ends open is the structural representation of the step-like opening of two-stage step;
Fig. 4 is that the utility model aluminium alloy bottom is the step-like cylinder of two-stage step, and aluminium-alloy pipe both ends open is the structural representation of the step-like opening of two-stage step;
Fig. 5 is the structural representation of the utility model aluminium-alloy pipe;
Fig. 6 is that this practical new aluminum alloy bottom is cylindrical structural representation;
The step-like cylindrical structural representation that Fig. 7 is two-stage step for this practical new aluminum alloy bottom.
Reference numeral: 1 is that aluminium-alloy pipe, 2 is that aluminium alloy bottom, 3 is conductive layer;
D1 is aluminium-alloy pipe external diameter, d2 is the step-like cylinder aluminium alloy bottom top external diameter of two-stage step, d3 is external diameter under the step-like cylinder aluminium alloy bottom of two-stage step, d4 is cylinder aluminium alloy bottom external diameter, h1 is aluminium-alloy pipe height, h2 is the degree of depth of the step-like opening part step of aluminium-alloy pipe two-stage, t1 is aluminium-alloy pipe pipe thickness, t2 is the thickness of the step-like opening part step of aluminium-alloy pipe two-stage, t3 is the step-like cylinder aluminium alloy bottom height of two-stage step, t4 is the height of the step-like cylinder aluminium alloy bottom one-level step of two-stage step.
Embodiment
embodiment 1
A kind of sodium-sulphur battery metal shell, described metal shell comprises aluminium-alloy pipe 1 and aluminium alloy bottom 2, the described aluminium-alloy pipe 1 equal opening in two ends, described aluminium alloy bottom 2 is welded on one end of described aluminium-alloy pipe 1, make that one end sealing of its welding, described metal shell inner surface is coated with conductive layer 3.
embodiment 2
On the basis of embodiment 1, preferred:
The pipe thickness t1 of described aluminium-alloy pipe 1 is 0.5mm, and outside diameter d 1 is 20mm, and height h1 is external diameter 4 times.
Further, the opening part at described aluminium-alloy pipe 1 two ends is the step-like opening of two-stage step.
The step place thickness t 2 of the above-mentioned step-like opening of two-stage is less than the pipe thickness t1 of aluminium-alloy pipe 1, is 0.3mm; The shoulder height h2 of the described step-like opening of two-stage is 0.2mm.
Described aluminium alloy bottom 2 is cylinder.
Described aluminium alloy bottom 2 is the step-like cylinder of two-stage step.
Described conductive layer 3 is nickel chromium triangle coating, and thickness is 10 μ m.
On the basis of embodiment 1, preferred:
The pipe thickness t1 of described aluminium-alloy pipe 1 is 5mm, and outside diameter d 1 is 150mm, and height h1 is external diameter 12 times.
Further, the opening part at described aluminium-alloy pipe 1 two ends is the step-like opening of two-stage step.
The step place thickness t 2 of the above-mentioned step-like opening of two-stage is less than the pipe thickness t1 of aluminium-alloy pipe 1, is 4.8mm; The shoulder height h2 of the described step-like opening of two-stage is 10mm.
Described aluminium alloy bottom 2 is cylinder.
Described aluminium alloy bottom 2 is the step-like cylinder of two-stage step.
Described conductive layer 3 is nickel chromium triangle coating, and thickness is 300 μ m.
embodiment 4
On the basis of embodiment 1, preferred:
The pipe thickness t1 of described aluminium-alloy pipe 1 is 2.75mm, and outside diameter d 1 is 85mm, and height h1 is external diameter 8 times.
Further, the opening part at described aluminium-alloy pipe 1 two ends is the step-like opening of two-stage step.
The step place thickness t 2 of the above-mentioned step-like opening of two-stage is less than the pipe thickness t1 of aluminium-alloy pipe 1, is 2.55mm; The shoulder height h2 of the described step-like opening of two-stage is 5.1mm.
Described aluminium alloy bottom 2 is cylinder.
Described aluminium alloy bottom 2 is the step-like cylinder of two-stage step.
Described conductive layer 3 is nickel chromium triangle coating, and thickness is 155 μ m.
embodiment 5
On the basis of embodiment 1, preferred:
The pipe thickness t1 of described aluminium-alloy pipe 1 is 3.6mm, and outside diameter d 1 is 60mm, and height h1 is external diameter 11 times.
Further, the opening part at described aluminium-alloy pipe 1 two ends is the step-like opening of two-stage step.
The step place thickness t 2 of the above-mentioned step-like opening of two-stage is less than the pipe thickness t1 of aluminium-alloy pipe 1, is 1.8mm; The shoulder height h2 of the described step-like opening of two-stage is 3mm.
Described aluminium alloy bottom 2 is cylinder.
Described aluminium alloy bottom 2 is the step-like cylinder of two-stage step.
Described conductive layer 3 is nickel chromium triangle coating, and thickness is 210 μ m.
embodiment 6
As shown in Fig. 4,5,7, sodium-sulphur battery metal shell described in the utility model: adopt 3A21 aluminium alloy as base material, size is as follows: d1=50mm, t1=2mm, h1=300mm, t2=1.4mm, h2=3mm, d2=48.8mm, d3=50mm, t4=3mm, t3=6mm.The part being processed into can be used as the sulphur utmost point at shell and the sulphur utmost point collector of the cylindric sodium-sulphur battery in electrolytic tube outside by welding, for further guaranteeing the collector conductive capability in the cycle under arms, in collection liquid surface plasma spraying nickel chromium triangle coating.
embodiment 7
As shown in Figure 4,5, 6, adopt 6070 aluminium alloys as base material, size is as follows: d1=80mm, t1=2.5mm, h1=500mm, t2=1.7mm, h2=3mm, d4=78.4mm, t5=3mm.The part being processed into can be used as the sulphur utmost point at shell and the sulphur utmost point collector of the cylindric large capacity sodium-sulphur battery in electrolytic tube outside by welding.
embodiment 8
The base material of aluminium-alloy pipe of the present utility model and aluminium alloy bottom is: aluminium alloy more preferably 3203,3003,3A21,3004,3104,3005,5056,5356,5456,5059,5082,5182,5083,5183,5383,5A05,5B05,6070,6181,6181A, 6082,6082A, 6A10,6A60, above aluminium alloy trade mark reference standard: GB/T 3190-2008.
Described sodium-sulphur battery housing and collector, the cylindric sodium-sulphur battery for the sulphur utmost point in electrolyte ceramics pipe outside, shell is also as collector; The sodium-sulphur battery of other structures that do not contact with battery case for the sulphur utmost point, shell and collector material that the collector of sulphur in extremely also can adopt the utility model to relate to.For guaranteeing conductive capability and the resistance to corrosion of battery inside and outside shell and collector, alternative effects on surface is processed, and comprises plating, chemical plating, thermal spraying, pressure carbon paper, depositing electrically conductive film etc.
embodiment 9
The size Selection of sodium-sulphur battery metal shell of the present utility model:
Aluminium-alloy pipe: 0.5mm≤t1≤5mm, 20≤d1≤150mm, 4 * d1≤h1≤12 * d1, both ends open place processes ledge structure, and it is easily assembled with other parts, the mm of 0.5mm≤t2≤(t1-0.2), step degree of depth 0.2mm≤h2≤10mm;
Cylinder aluminium alloy bottom: (d1-2 * t5-0.3) mm≤d4≤(d1-2 * t5+0.3) mm, thickness h 2-0.5mm≤t5≤h2+0.5mm.
The step-like cylinder aluminium alloy bottom of two-stage step: (d1-2 * t5) mm≤d2≤d1+5mm, (d1-2 * t2) mm≤d3≤d1+5mm, 0.5mm≤t4≤8mm, the mm of t4≤t3≤(t4+h2).
Claims (7)
1. a sodium-sulphur battery metal shell, it is characterized in that: described metal shell comprises aluminium-alloy pipe (1) and aluminium alloy bottom (2), the equal opening in described aluminium-alloy pipe (1) two ends, described aluminium alloy bottom (2) is welded on one end of described aluminium-alloy pipe (1), make that one end sealing of its welding, described metal shell inner surface is coated with conductive layer (3).
2. a kind of sodium-sulphur battery metal shell according to claim 1, is characterized in that: the pipe thickness t1 of described aluminium-alloy pipe (1) is 0.5～5mm, and outside diameter d 1 is 20～150mm, and height h1 is external diameter 4～12 times.
3. a kind of sodium-sulphur battery metal shell according to claim 1, is characterized in that: the opening part at described aluminium-alloy pipe (1) two ends is the step-like opening of two-stage step.
4. a kind of sodium-sulphur battery metal shell according to claim 3, is characterized in that: the step place thickness t 2 of the described step-like opening of two-stage is less than the pipe thickness t1 of aluminium-alloy pipe (1), is 0.3～4.8mm; The shoulder height h2 of the described step-like opening of two-stage is 0.2～10mm.
5. a kind of sodium-sulphur battery metal shell according to claim 1, is characterized in that: described aluminium alloy bottom (2) is cylinder.
6. a kind of sodium-sulphur battery metal shell according to claim 1, is characterized in that: described aluminium alloy bottom (2) is the step-like cylinder of two-stage step.
7. a kind of sodium-sulphur battery metal shell according to claim 1, is characterized in that: described conductive layer (3) is nickel chromium triangle coating, and thickness is 10-300 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320327234.8U CN203445160U (en) | 2013-06-07 | 2013-06-07 | Metal shell of sodium-sulfur battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320327234.8U CN203445160U (en) | 2013-06-07 | 2013-06-07 | Metal shell of sodium-sulfur battery |
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| Publication Number | Publication Date |
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| CN203445160U true CN203445160U (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320327234.8U Expired - Lifetime CN203445160U (en) | 2013-06-07 | 2013-06-07 | Metal shell of sodium-sulfur battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410212A (en) * | 2016-12-12 | 2017-02-15 | 上海电气钠硫储能技术有限公司 | Sodium-sulphur battery anode current collector |
| CN106876615A (en) * | 2017-02-27 | 2017-06-20 | 中国东方电气集团有限公司 | A kind of sodium-sulphur battery anti-corrosion method |
-
2013
- 2013-06-07 CN CN201320327234.8U patent/CN203445160U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410212A (en) * | 2016-12-12 | 2017-02-15 | 上海电气钠硫储能技术有限公司 | Sodium-sulphur battery anode current collector |
| CN106410212B (en) * | 2016-12-12 | 2023-05-26 | 江苏先进无机材料研究院 | Positive electrode current collector of sodium-sulfur battery |
| CN106876615A (en) * | 2017-02-27 | 2017-06-20 | 中国东方电气集团有限公司 | A kind of sodium-sulphur battery anti-corrosion method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180426 Address after: 610000 18 West core road, hi-tech West District, Chengdu, Sichuan Patentee after: DONGFANG ELECTRIC Co.,Ltd. Address before: 610036 Shu Han Road, Jinniu District, Chengdu, Sichuan Province, No. 333 Patentee before: DONGFANG ELECTRIC Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |