CN103123985B - Vacuum press mounting structure of sodium-sulfur battery - Google Patents
Vacuum press mounting structure of sodium-sulfur battery Download PDFInfo
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- CN103123985B CN103123985B CN201210537657.2A CN201210537657A CN103123985B CN 103123985 B CN103123985 B CN 103123985B CN 201210537657 A CN201210537657 A CN 201210537657A CN 103123985 B CN103123985 B CN 103123985B
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- positive pole
- annular groove
- sodium
- bulge loop
- sealed bottom
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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 invention discloses a vacuum press mounting structure of a sodium-sulfur battery. The vacuum press mounting structure comprises a positive electrode shell and a bottom seal cover, wherein the positive electrode shell comprises a cylinder and a convex ring which extends outwards from the lower end of the cylinder; the upper end surface of the bottom seal cover is provided with an annular groove which is adaptive to the convex ring of the positive electrode shell; an outer circular surface of the convex ring is in basic-shaft-system interference fit with an outer groove wall of the annular groove; and the convex ring of the positive electrode shell is pressed into the annular groove of the bottom seal cover through a press. Due to the adoption of the vacuum press mounting structure, the high vacuum degree of a positive electrode of the sodium-sulfur battery can be guaranteed, a condition can be created for final laser welding and sealing in an atmospheric environment, and stable welding quality can be guaranteed.
Description
Technical field
The present invention relates to a kind of Vacuum Pressure assembling structure of sodium-sulphur battery.
Background technology
Sodium sulphur (NaS) battery is the rechargeable battery of a kind of negative pole sodium, positive pole sulphur, electrolyte ceramic alumina class material composition.It has that energy storage density is large, efficiency is high, operating cost is low, safeguard be easier to, the advantage such as free from environmental pollution, long service life.
The critical component positive pole container of sodium-sulphur battery is made up of positive pole shell and sealed bottom lid, and therefore the encapsulation of positive pole shell and sealed bottom lid is the key ensureing positive pole container sealing.Existing positive pole shell is adopt seam location, edge with being fixedly connected with of sealed bottom lid, then by special fixture, makes both seam two sides stressed, then pass through laser welding sealing.Owing to will ensure the vacuum state of positive pole container, therefore positive pole shell all carries out with being fixedly connected with of sealed bottom lid in vacuum tank.Because the overall volume of sodium-sulphur battery is comparatively large, one or many battery positioning fixtures, laser welding system, interior, need a larger confined space could meet the needs of sodium-sulphur battery high vacuum packaging technology.The problem brought is: first, because confined space volume is larger, the time vacuumizing the vacuum degree reaching required is just long, and the cargo handling process of battery is also more loaded down with trivial details, such technique, in the ever-increasing situation of amount of batteries output, creates the production time and production cost problem that are difficult to overcome; Secondly, the high Structural strength calls to vacuum tank of vacuum degree is also higher, and the cost of vacuum tank can be made also to be doubled and redoubled; In addition, the phenomenon that the carbon felt be positioned at bottom positive pole container often has carbon fiber to come off, vacuumize and often have carbon fiber to extract the junction resting on sealed bottom lid and positive pole shell out, this carbon fiber energy higher temperature resistant (1000 degrees Celsius), high temperature during laser welding also can not melt, and therefore the carbon fiber filament of sealed bottom lid and positive pole shell seam crossing often causes the vacuum state in positive pole container to decline.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of Vacuum Pressure assembling structure of sodium-sulphur battery is provided, it can guarantee that the positive pole container of sodium-sulphur battery is in higher vacuum degree, create conditions for carrying out last laser welding sealing in atmospheric environment, and can stable welding quality be ensured.
The technical scheme realizing above-mentioned purpose is: a kind of Vacuum Pressure assembling structure of sodium-sulphur battery, comprises positive pole shell and the sealing of sealed bottom lid, wherein,
Described positive pole shell comprises cylinder and by the outward extending bulge loop in the lower end of cylinder;
The upper surface of described sealed bottom lid offer one with the annular groove of the bulge loop adaptation of described positive pole shell;
Be basic shaft system interference fit between the periphery of described bulge loop and the external groove sidevall of described annular groove;
By press, the bulge loop of described positive pole shell is pressed in the annular groove of described sealed bottom lid.
The Vacuum Pressure assembling structure of above-mentioned sodium-sulphur battery, wherein, the bulge loop of described positive pole shell is pressed in the annular groove of described sealed bottom lid and carries out under vacuum conditions.
The Vacuum Pressure assembling structure of above-mentioned sodium-sulphur battery, wherein, the annular groove degree of depth that described sealed bottom covers is greater than the height of the bulge loop on described positive pole shell.
The Vacuum Pressure assembling structure of sodium-sulphur battery of the present invention, on the one hand when press-fiting, carbon fiber filament is cut off by the faying face of the interference fit between sealed bottom lid and positive pole shell and is siphoned away by negative pressure, for follow-up laser welding sealing creates conditions, welding quality is significantly improved, makes positive pole container keep permanent sealing state.On the other hand after press-fiting, make positive pole container can be in negative pressure and from packing state, follow-up laser welding sealing just can in an atmosphere routinely technique carry out, can reduce confined space volume and therefore reduce the time vacuumized, and then make efficiency improve and cost reduction.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the Vacuum Pressure assembling structure of sodium-sulphur battery of the present invention.
Embodiment
In order to understand technical scheme of the present invention better, be also described in detail by reference to the accompanying drawings below by specific embodiment:
Refer to Fig. 1, the Vacuum Pressure assembling structure of sodium-sulphur battery of the present invention, comprise positive pole shell 1 and sealed bottom lid sealing 2, wherein,
Positive pole shell 1 comprises cylinder 11 and by the outward extending bulge loop 12 in the lower end of cylinder 11;
The upper surface of sealed bottom lid 2 offer one with the annular groove 20 of bulge loop 12 adaptation of positive pole shell 1;
Be basic shaft system interference fit between the diameter D of the diameter of the periphery of bulge loop 12 and the external groove sidevall of annular groove 20;
Annular groove 20 depth H on sealed bottom lid 2 is greater than the height h of the bulge loop 12 on positive pole shell 1;
Under vacuum conditions, by press, the bulge loop 12 of positive pole shell 1 is pressed in the annular groove 20 of sealed bottom lid 2.
Because annular groove 20 degree of depth on sealed bottom lid 2 is greater than the height of the bulge loop 12 on positive pole shell 1, when can ensure to press-fit, the bulge loop 12 of positive pole shell 1 enters in the annular groove 20 of sealed bottom lid 2 completely, make positive pole shell 1 and sealed bottom lid 2 keep stable to be connected, be easy to operate follow-up laser welding operation, enough weld strengths can be obtained.
After adopting the Vacuum Pressure assembling structure of sodium-sulphur battery of the present invention, when sealed bottom lid and positive pole stressed skin press-fit, carbon fiber filament is siphoned away by negative pressure after being cut off by the interference fit faying face between sealed bottom lid and positive pole shell, for follow-up laser welding sealing creates conditions, therefore welding quality significantly improves and keeps stable, makes positive pole container keep permanent sealing state.。
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
Claims (1)
1. a Vacuum Pressure assembling structure for sodium-sulphur battery, comprises positive pole shell and the sealing of sealed bottom lid, it is characterized in that,
Described positive pole shell comprises cylinder and by the outward extending bulge loop in the lower end of cylinder;
The upper surface of described sealed bottom lid offer one with the annular groove of the bulge loop adaptation of described positive pole shell;
Be basic shaft system interference fit between the periphery of described bulge loop and the external groove sidevall of described annular groove;
The bulge loop of described positive pole shell is made to be pressed in the annular groove of described sealed bottom lid by press;
The bulge loop of described positive pole shell is pressed in the annular groove of described sealed bottom lid and carries out under vacuum conditions;
The annular groove degree of depth that described sealed bottom covers is greater than the height of the bulge loop on described positive pole shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210537657.2A CN103123985B (en) | 2012-12-12 | 2012-12-12 | Vacuum press mounting structure of sodium-sulfur battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210537657.2A CN103123985B (en) | 2012-12-12 | 2012-12-12 | Vacuum press mounting structure of sodium-sulfur battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103123985A CN103123985A (en) | 2013-05-29 |
| CN103123985B true CN103123985B (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210537657.2A Active CN103123985B (en) | 2012-12-12 | 2012-12-12 | Vacuum press mounting structure of sodium-sulfur battery |
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| CN (1) | CN103123985B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2248617B1 (en) * | 1973-10-17 | 1978-02-17 | Comp Generale Electricite | |
| GB2041812A (en) * | 1979-01-29 | 1980-09-17 | Gen Electric | Sealing Sodium-sulfur Cell Casings |
| CN1034453A (en) * | 1987-10-23 | 1989-08-02 | 克罗瑞德无噪音电源有限公司 | Make the method and apparatus of metal energy conversion device |
| CN201038266Y (en) * | 2007-04-19 | 2008-03-19 | 陈会林 | Large power sodium sulfur power battery |
| CN201307607Y (en) * | 2008-11-07 | 2009-09-09 | 佛山市南海新光电池材料有限公司 | Sealing ring of alkaline button type battery |
| CN102601524A (en) * | 2011-01-20 | 2012-07-25 | 中国科学院上海硅酸盐研究所 | Precision control device of vacuum laser welding machine for preparing sodium-sulfur batteries |
| CN202423497U (en) * | 2011-12-16 | 2012-09-05 | 日本碍子株式会社 | Box used for containing sodium and sodium-sulfur (NaS) battery |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62295368A (en) * | 1986-06-13 | 1987-12-22 | Yuasa Battery Co Ltd | Sodium-sulphur cell and its manufacture |
| CN203013871U (en) * | 2012-12-12 | 2013-06-19 | 上海电气钠硫储能技术有限公司 | Vacuum pressing structure of sodium-sulfur cell |
-
2012
- 2012-12-12 CN CN201210537657.2A patent/CN103123985B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2248617B1 (en) * | 1973-10-17 | 1978-02-17 | Comp Generale Electricite | |
| GB2041812A (en) * | 1979-01-29 | 1980-09-17 | Gen Electric | Sealing Sodium-sulfur Cell Casings |
| CN1034453A (en) * | 1987-10-23 | 1989-08-02 | 克罗瑞德无噪音电源有限公司 | Make the method and apparatus of metal energy conversion device |
| CN201038266Y (en) * | 2007-04-19 | 2008-03-19 | 陈会林 | Large power sodium sulfur power battery |
| CN201307607Y (en) * | 2008-11-07 | 2009-09-09 | 佛山市南海新光电池材料有限公司 | Sealing ring of alkaline button type battery |
| CN102601524A (en) * | 2011-01-20 | 2012-07-25 | 中国科学院上海硅酸盐研究所 | Precision control device of vacuum laser welding machine for preparing sodium-sulfur batteries |
| CN202423497U (en) * | 2011-12-16 | 2012-09-05 | 日本碍子株式会社 | Box used for containing sodium and sodium-sulfur (NaS) battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103123985A (en) | 2013-05-29 |
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Effective date of registration: 20200902 Address after: 200437 No. 171, Handan Road, Shanghai, Hongkou District Patentee after: EAST CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Address before: 201815 Shanghai Jiading District City Jia Zhu Road No. 1997 Patentee before: SHANGHAI ELECTRIC SODIUM SULFUR ENERGY STORAGE TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |