CN203406388U - Center supporting tube for lithium ion battery - Google Patents
Center supporting tube for lithium ion battery Download PDFInfo
- Publication number
- CN203406388U CN203406388U CN201320331282.4U CN201320331282U CN203406388U CN 203406388 U CN203406388 U CN 203406388U CN 201320331282 U CN201320331282 U CN 201320331282U CN 203406388 U CN203406388 U CN 203406388U
- Authority
- CN
- China
- Prior art keywords
- supporting tube
- lithium ion
- ion battery
- small holes
- center
- 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 center supporting tube for a lithium ion battery. The center supporting tube is characterized by comprising a supporting tube body, wherein the circumferential wall of the supporting tube body is provided with multiple small holes, the small holes are arbitrarily distributed in the surface of the wall of the supporting tube body and are not at a same straight line, the shapes and the sizes of the small holes can be same or different, and the distance between any two points on the edge of each small hole does not exceed 1/15 of the height of the supporting tube body. The center supporting tube disclosed by the utility model is provided with the small holes, so that the electrolyte absorption efficiency of a pole piece of the battery subjected to electrolyte injection can be improved, the battery electrolyte injection time and the standing time after electrolyte injection can be shortened, and the production efficiency can be improved; the small holes are not formed in a same straight line, so that the mechanical strength of the supporting tube can be ensured, and the bonding strength of a diaphragm and the supporting tube in winding is not affected; the material of the center support tube is consistent with that of the diaphragm, so that the compatibility of the center supporting tube and the diaphragm is ensured, the firm scalding connection of the two can be realized, and an additional medium layer is not required to be added to the surface of the center supporting tube.
Description
Technical field
The utility model belongs to lithium ion battery field, is specifically related to a kind of lithium ion battery central support tube.
Background technology
At present, power lithium-ion battery, high power capacity cylindrical lithium ion battery particularly, tight especially due to what remaining battery space was smaller, volume core is reeled, fluid injection inefficiency, often needs at twice even repeatedly fluid injection, in addition, pole piece imbibition and infiltrating time also extend greatly with respect to baby battery, have a strong impact on production efficiency.
In addition, because the material compatibility of central support tube and barrier film is bad, when volume core is reeled barrier film often securely hot pick in central support tube, need to be in central support tube pyrocondensation one deck and the good material ability of barrier film compatibility normal winding.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of lithium ion battery central support tube is provided, this stay pipe can guarantee the mechanical strength of stay pipe, not affect under the prerequisite of winding quality, the imbibition efficiency of pole piece after raising battery liquid-filling, shorten the time of repose after battery liquid-filling time and fluid injection, enhance productivity.
For achieving the above object, the utility model is by the following technical solutions:
A kind of lithium ion battery central support tube, it is characterized in that: include a stay pipe, on the surrounding tube wall of stay pipe, have several apertures, described aperture be distributed in arbitrarily stay pipe tube wall surface and not on same straight line, shape and the size of each aperture can be the same or different, and the distance between aperture edge any two points is no more than 1/15 of stay pipe height.
Described lithium ion battery central support tube, is characterized in that: being shaped as of described aperture is circular, square, ellipse or irregular polygon.
Described lithium ion battery central support tube, is characterized in that: the material of described stay pipe is PE or PP.
The beneficial effects of the utility model are:
1, in central support tube, be designed with the imbibition efficiency that aperture can improve pole piece after battery liquid-filling, shorten the time of repose after battery liquid-filling time and fluid injection, enhance productivity.
2, aperture does not design on same straight line, both can guarantee the mechanical strength of stay pipe, does not affect again barrier film and stay pipe bond strength while reeling.
3, the material of central support tube and barrier film material are consistent, and have guaranteed the compatibility of central support tube and barrier film, can realize the firm hot pick of the two, need to be in the extra medium layer of the extra increase of central supported tube-surface.
accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of lithium ion battery central support tube, include stay pipe 1, on stay pipe 1 surrounding tube wall, have three circular holes 2, these three circular holes 2 are distributed in arbitrarily the surface of stay pipe 1 tube wall, but not on same straight line, on stay pipe 1, the diameter of circular hole 2 is 1/30 of stay pipe 1 height, and the material of stay pipe 1 is PE.
The above, not do any pro forma restriction to structure of the present utility model.Any simple modification, equivalent variations that every foundation technical spirit of the present utility model is done above embodiment, all still belong within the scope of the technical solution of the utility model.
Claims (3)
1. a lithium ion battery central support tube, it is characterized in that: include a stay pipe, on the surrounding tube wall of stay pipe, have several apertures, described aperture be distributed in arbitrarily stay pipe tube wall surface and not on same straight line, shape and the size of each aperture can be the same or different, and the distance between aperture edge any two points is no more than 1/15 of stay pipe height.
2. lithium ion battery central support tube according to claim 1, is characterized in that: being shaped as of described aperture is circular, square, ellipse or irregular polygon.
3. lithium ion battery central support tube according to claim 1, is characterized in that: the material of described stay pipe is PE or PP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320331282.4U CN203406388U (en) | 2013-06-08 | 2013-06-08 | Center supporting tube for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320331282.4U CN203406388U (en) | 2013-06-08 | 2013-06-08 | Center supporting tube for lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203406388U true CN203406388U (en) | 2014-01-22 |
Family
ID=49942309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320331282.4U Expired - Lifetime CN203406388U (en) | 2013-06-08 | 2013-06-08 | Center supporting tube for lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203406388U (en) |
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2013
- 2013-06-08 CN CN201320331282.4U patent/CN203406388U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 230000 Yaohai Industrial Zone, Hefei New District, Anhui, No. D weft Road, No. 7 Patentee after: Hefei Guoxuan High-Tech Power Energy Co.,Ltd. Address before: 230011 Pearl Road 7, Yaohai Industrial Park, Anhui, Hefei Patentee before: Hefei Guoxuan High-Tech Power Energy Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140122 |
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| CX01 | Expiry of patent term |