CN102332543A - Electrochemical energy storage device - Google Patents
Electrochemical energy storage device Download PDFInfo
- Publication number
- CN102332543A CN102332543A CN201110229178A CN201110229178A CN102332543A CN 102332543 A CN102332543 A CN 102332543A CN 201110229178 A CN201110229178 A CN 201110229178A CN 201110229178 A CN201110229178 A CN 201110229178A CN 102332543 A CN102332543 A CN 102332543A
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- China
- Prior art keywords
- pole
- energy storage
- shell
- storage device
- housing
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- 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.)
- Pending
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention provides an electrochemical energy storage device, which comprises a shell, a battery core component, an upper pole, a lower pole and a pole cover, wherein the shell is cylindrical barrel-shaped; the bottom end of the shell is provided with an inner hole; the battery core component is arranged in the shell; the upper pole is welded to the upper end of the battery core component; the lower pole is welded to the lower end of the battery core component, passes through the inner hole at the bottom of the shell and is integrally connected with the shell through welding; the center of the pole cover is provided with an inner hole; the pole cover is connected with the upper pole; a seal ring is additionally arranged in a groove on the outer circle of the pole cover to realize sealing with the shell; a seal ring is additionally arranged in a groove on the inner hole of the pole cover to realize sealing with the upper pole; and an insulating isolating sleeve is arranged between the circumference on the pole cover and the inner side wall of the shell. Through the electrochemical energy storage device, the structure and the assembly process of a single body of the electrochemical energy storage device are further simplified, the production cost is reduced, and the sealing property and the reliability of the single body are improved.
Description
Technical field
The present invention relates to a kind of electrochemical energy storage device, particularly relate to the monomer structure of electrochemical energy storage devices such as a kind of ultracapacitor and battery.
Background technology
Growing along with the exhaustion day by day of the energy and auto industry, electric automobile and hybrid vehicle arise at the historic moment, can high power, the ultracapacitor or the electrokinetic cell of macro-energy, big electric current input, output become the focus that people pay close attention to.As the pure power source or the auxiliary power source of automobile, require it should have low internal resistance, characteristics such as high power and long-life can quick charge and discharge under big electric current to guarantee electrochemical energy storage device.Yet, because the structure of electrochemical energy storage device, and the character of the electrolyte that uses itself, make that the sealing property of this type of column type electrochemical energy storage device is particularly crucial.
The sealing of existing column type electrochemical energy storage device is as shown in Figure 1; After last bus-bar 15 welds with electric core assembly 3; With polar cap 7 interference fit, polar cap 7 indent seam planes and housing 2 are interior by clamped sealed circle 5 about girdling the waist between the protruding platform that produces, and seal to realize monomer.Polar cap 7 is provided with insulation spacer 6; Under the spacer 13 that insulate; In the monomer assembling process, when last bus-bar 15 and polar cap 7 are realized interference fit, need between sealing ring 5 and following insulation spacer 13, girdling the waist accurately on the housing 2; The protruding platform that is produced with a tight waist also needs to descend spacer 13 to compress, and linking to each other with housing 2 with the upper end collection ear that prevents bus-bar 15 and electric core assembly 3 causes the monomer short circuit.This shows; Adopt existing sealing means; Assembly technology is complicated, and is very high to the production equipment required precision, if equipment precision can't guarantee; Last bus-bar 15 is not perpendicular during with polar cap 7 assemblings, or can not accurately locate when with a tight waist and form platform and sealing ring 5 and insulation spacer 13 are down compressed then will cause monomer leakage or short circuit.On the other hand, electric core assembly 3 bottoms directly are connected through laser welding with housing 2, owing to laser welding can be with housing 2 bottom welds punctures; Need coat conducting resinl and affix leak stopping sheet metal 14; The solution leakage phenomenon can appear in long-term storage, and because the collector of electric core assembly is thinner, breakdown easily when welding; Cause the monomer short circuit, must strict control welding procedure in the production process.Electricity core assembly 3 bottoms also can be connected through interference fit with housing 2, when electric core assembly 3 gets into housing 2, are welded in the following bus-bar and the housing 2 bottom interference fit of electric core assembly 3 bottoms, and the employed equipment of this process must have very high accurancy and precision.
In sum, the assembly technology of existing electrochemical energy storage device monomer is complicated, and very high to equipment precision requirement, connector is more, and many factors make product cost high.
Summary of the invention
The objective of the invention is to overcome the fault of construction of existing electrochemical energy storage device, further improve the sealing property of electrochemical energy storage device, simplify monomer structure and assembly technology, reduce production costs.
The present invention proposes a kind of electrochemical energy storage device, comprising: housing, be cylindrical tubbiness, and there is an endoporus bottom; The electricity core assembly places enclosure interior; Last pole is welded in electric core assembly upper end; Following pole is welded in electric core assembly lower end, passes said housing bottom endoporus, is connected as a single entity through welding and housing; And polar cap, there is an endoporus at the center, links to each other with last pole; Wherein, the outer round recessed of said polar cap is added with the sealing of sealing ring realization and housing; Said polar cap endoporus groove is added with the sealing of sealing ring realization and last pole; Be provided with the insulation spacer between circumference and the housing madial wall on the said polar cap.
Electrochemical energy storage device monomer of the present invention uses employing sealing ring radial seal between housing and polar cap, polar cap and the last pole, makes sealing property and seal pressure independent; Following pole, last pole are directly drawn, and the monomer internal resistance is descended, and the monomer performance is not influenced by external force, and product quality is more reliable.The monomer other end adopts laser welding, makes that the monomer manufacturing process is simple, and structure is attractive in appearance.The present invention has further simplified the structure and the assembly technology of electrochemical energy storage device monomer, reduces production costs, and improves the sealing property and the reliability of monomer.
Description of drawings
Can graphicly further be understood through following detailed Description Of The Invention and appended about advantage of the present invention and spirit.
Fig. 1 is this existing electrochemical energy storage device structural representation;
Fig. 2 is an electrochemical energy storage device structural representation of the present invention;
Fig. 3 is an electrochemical energy storage device shell structure sketch map of the present invention;
Fig. 4 is an electrochemical energy storage device polar cap structural representation of the present invention.
Embodiment
Specify specific embodiment of the present invention below in conjunction with accompanying drawing.
Shown in Fig. 2-4, a kind of electrochemical energy storage device of the present invention comprises pole 1 down, housing 2, electric core assembly 3, last pole 4, polar cap 7.Wherein descend pole 1 to be welded in electric core assembly 3 lower ends, last pole 4 is welded in electric core assembly 3 upper ends.Housing 2 is used to place electric core assembly 3, comprises bottom endoporus 9, and following pole 1 is drawn through endoporus 9, and adopts laser welding to be fixed in housing bottom, and plays sealing function.Polar cap 7 comprises outer round recessed 10, endoporus groove 11, and endoporus 12, and last pole 4 passes endoporus 12 and draws. Place sealing ring 5,8 in the groove 10,11 respectively, realize the sealing between housing 2 and polar cap 7, polar cap 7 and the last pole 4.Be provided with insulation spacer 6 on the polar cap 7 between circumference and housing 2 madial walls.Because employing sealing ring 5,8 radial seals between housing 2 and polar cap 7, polar cap 7 and the last pole 4, make sealing property and seal pressure independent; With pole 1 at present, go up pole 4 directly with electric core assemblies 3 welding, directly outwards draw conduction, the monomer internal resistance is descended, and the monomer performance do not influence by external force, product quality is more reliable; The monomer bottom is pole 1 exit and housing 2 bottoms employing laser welding down, makes that the monomer manufacturing process is simple, and structure is attractive in appearance.
Described in this specification is preferred embodiment of the present invention, and above embodiment is only in order to explain technical scheme of the present invention but not limitation of the present invention.All those skilled in the art all should be within scope of the present invention under this invention's idea through the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (1)
1. electrochemical energy storage device is characterized in that comprising: housing, be cylindrical tubbiness, and there is an endoporus bottom; The electricity core assembly places enclosure interior; Last pole is welded in electric core assembly upper end; Following pole is welded in electric core assembly lower end, passes said housing bottom endoporus, is connected as a single entity through welding and housing; And polar cap, there is an endoporus at the center, links to each other with last pole; Wherein, the outer round recessed of said polar cap is added with the sealing of sealing ring realization and housing; Said polar cap endoporus groove is added with the sealing of sealing ring realization and last pole; Be provided with the insulation spacer between circumference and the housing madial wall on the said polar cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110229178A CN102332543A (en) | 2011-08-11 | 2011-08-11 | Electrochemical energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110229178A CN102332543A (en) | 2011-08-11 | 2011-08-11 | Electrochemical energy storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102332543A true CN102332543A (en) | 2012-01-25 |
Family
ID=45484244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110229178A Pending CN102332543A (en) | 2011-08-11 | 2011-08-11 | Electrochemical energy storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102332543A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101714616A (en) * | 2009-11-17 | 2010-05-26 | 凯迈嘉华（洛阳）新能源有限公司 | Electrode leading structure and electricity storage electric element adopting thereof |
| CN102130310A (en) * | 2011-01-28 | 2011-07-20 | 王为希 | Battery and battery pack |
-
2011
- 2011-08-11 CN CN201110229178A patent/CN102332543A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101714616A (en) * | 2009-11-17 | 2010-05-26 | 凯迈嘉华（洛阳）新能源有限公司 | Electrode leading structure and electricity storage electric element adopting thereof |
| CN102130310A (en) * | 2011-01-28 | 2011-07-20 | 王为希 | Battery and battery pack |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120125 |