CN201797010U - Cylindrical polymer lithium battery - Google Patents
Cylindrical polymer lithium battery Download PDFInfo
- Publication number
- CN201797010U CN201797010U CN2010205023632U CN201020502363U CN201797010U CN 201797010 U CN201797010 U CN 201797010U CN 2010205023632 U CN2010205023632 U CN 2010205023632U CN 201020502363 U CN201020502363 U CN 201020502363U CN 201797010 U CN201797010 U CN 201797010U
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- China
- Prior art keywords
- lithium battery
- pits
- drawn
- battery
- lugs
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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.)
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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 utility model discloses a cylindrical polymer lithium battery, which comprises a cylindrical battery core and a soft packing shell packed outside the cylindrical battery core, wherein the unfolded soft packing shell comprises two pits, the sections of which are semicircular; and a connecting belt is arranged between the two pits, the two pits are mutually symmetrical relative to the connecting belt, the width of the connecting belt is 1 to 1.5 millimeters, the depth of the pit close to one side of the connecting belt is less than the depth far away from one side of the connecting belt, the depth difference is 0.27 to 0.33 millimeter, and the depths of the pits are changed smoothly. The lithium battery does not form creases at the joint of the two pits, and has good appearance quality.
Description
Technical field
The utility model relates to lithium battery, particularly cylinder type lithium battery.
Background technology
Lithium battery is that a class is negative material, the battery that uses non-aqueous electrolytic solution by lithium metal or lithium alloy; because the chemical characteristic of lithium metal is very active; make processing, preservation, the use of lithium metal; very high to environmental requirement, so lithium battery production will be carried out under special environmental conditions.But because the lot of advantages of lithium battery, lithium battery is applied on electronic instrument, number and the household appliances widely.
At present, polymer Li-ion battery is divided into box hat, aluminum hull, flexible package shell lithium battery by packaging material, because the poly-lithium battery of box hat, aluminum hull packing, the manufacturing finished product is higher, the moulding difficulty is bigger, in use there is certain explosion safety hidden danger in itself simultaneously, has limited it to a great extent and has utilized the field, therefore, the lithium battery applications of flexible package shell is more.
At present, the place that lithium battery applications gets often is an electronic instrument, digital, household electrical appliances, in the electronic equipments such as notebook, use lithium battery in this kind equipment is generally square, but in the electronic equipment that needs cylindrical battery that is useful in other, also begin to have occurred cylinder type lithium battery, as China Patent No. is to be to be to disclose a kind of Flexible cylindrical Li-ion battery shell in the patent documentation of 2007.6.27 2006.3.14 Granted publication day 200620056378.4 applyings date, this flexible package shell is made up of aluminum-plastic composite membrane, be pressed with two symmetrical semicircular recess in the aluminum-plastic composite membrane upper punch, after stamping forming aluminum plastic film closed up, two semicircular recess formed the spatial accommodation of battery.Though closing up, this flexible package shell can constitute cylindrical battery, because there is thickness in aluminum plastic film, when closing up after, can form gauffer or close up afterwards that can there be the gap in the outward flange of two pits in the junction of two pits, influence the outward appearance of lithium battery.
Summary of the invention
The purpose of this utility model is for a kind of cylindrical polymeric lithium battery is provided, and this lithium battery can not form gauffer in the junction of two pits, and the presentation quality of lithium battery is good.
For achieving the above object, a kind of cylindrical polymeric lithium battery comprises the cylindrical battery core and is packaged in the outer flexible package shell of cylindrical battery core that the flexible package shell comprises that two cross sections are semicircular pit after launching; Be provided with connecting band between two pits, the relative connecting band of two pits is symmetrical, and the width of described connecting band is 1～1.5mm, and the degree of depth of close connecting band one side of pit is less than the degree of depth away from connecting band one side, depth difference is 0.27～0.33mm, the degree of depth smooth variation of pit.
Flexible package shell of the present utility model, owing to be provided with connecting band between two pits, the width of connecting band is 1～1.5mm, after two pits close up, between two pits, can not produce stretcher strain, therefore, between two pits, gauffer can not occur, improve the presentation quality of lithium battery.And the degree of depth of close connecting band one side of pit is less than the degree of depth away from connecting band one side, and depth difference is 0.27～0.33mm, like this, after two pits close up, even there is connecting band, but also can not form the gap on the contact-making surface of pit periphery, therefore, the quality of packing is good.
As improvement, described pit periphery leaves the plane.Like this, be convenient to edge sealing, and, can make the periphery of two pits connect more tight behind the edge sealing.
As improvement, lead to two lugs on the described battery, two lugs are drawn from the upper end of lithium battery.
As improvement, lead to two lugs on the described battery, a lug is drawn from the upper end of lithium battery, and another lug is drawn from the lower end of lithium battery.
As improvement, lead to two lugs on the battery of stating, a lug is drawn from the upper end of lithium battery, and another side from lithium battery is drawn.
As improvement, lead to two lugs on the described battery, a lug is drawn from the lower end of lithium battery, and another side from lithium battery is drawn.
As improvement, lead to two lugs on the described battery, two lugs draw from the side of lithium battery.
Lug in the lithium battery of the present utility model is provided with drawing of diverse location, being suitable for the different scopes of application, thereby has enlarged the scope of application of cylindrical shape poly-lithium battery.
Description of drawings
Fig. 1 is the front view of poly-lithium battery.
Fig. 2 is the vertical view of poly-lithium battery.
Fig. 3 is the front view of flexible package shell after launching.
Fig. 4 is the left view of flexible package shell after launching.
Fig. 5 is the vertical view of flexible package shell after launching.
The structural representation that Fig. 6 draws from top and bottom for lug.
The structural representation that Fig. 7 draws from upper end and side for lug.
The structural representation that Fig. 8 draws from lower end and side for lug.
The structural representation that Fig. 9 draws from side for lug.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further elaborated.
As depicted in figs. 1 and 2, the cylindrical polymeric lithium battery leads to lug 3 by battery 1 and the flexible package shell 2 that is wrapped in outside the battery 1 in the upper end of battery 1.To shown in Figure 9, in order to be suitable for the electric connection with different electric equipment, one of them lug can be drawn from the upper end as Fig. 6, and another lug is drawn from the lower end; Perhaps, a lug is drawn from the upper end, and another lug is drawn from side; Perhaps, a lug is drawn from the lower end, and another lug is drawn from side; Perhaps, two lugs are all drawn from side.
Fig. 3 to Fig. 5 is the expansion view of flexible package shell 2, and two cross sections are arranged is semicircular pit 21 in punch forming on aluminum plastic film 20, and in the present embodiment, two pits are vertically arranged, and certainly, also can be transversely arranged; Be provided with connecting band 22 between two pits, the width of connecting band is 1～1.5mm, in the present embodiment, select 1.7mm, the degree of depth of close connecting band one side of pit is less than the degree of depth away from connecting band one side, and depth difference is 0.27～0.33mm, the degree of depth smooth variation of pit, the outline that is pit is an inclined-plane, and depth difference is 0.3mm in the present embodiment.After the flexible package shell closes up,, leave plane 23 in the pit periphery in order to encapsulate and to encapsulate firmly.
Owing to be provided with connecting band 22 between two pits, the width of connecting band 22 is 1.7mm, after two pits close up, can not produce stretcher strain between two pits, therefore, gauffer can not occur between two pits, has improved the presentation quality of lithium battery.And the degree of depth of close connecting band one side of pit is less than the degree of depth away from connecting band one side, and depth difference is 0.3mm, like this, after two pits close up, even there is connecting band, but also can not form the gap on the contact-making surface of pit periphery, and therefore, the quality of packing is good.
Claims (7)
1. a cylindrical polymeric lithium battery comprises the cylindrical battery core and is packaged in the outer flexible package shell of cylindrical battery core, and the flexible package shell comprises that two cross sections are semicircular pit after launching; It is characterized in that: be provided with connecting band between two pits, the relative connecting band of two pits is symmetrical, and the width of described connecting band is 1～1.5mm, and the degree of depth of close connecting band one side of pit is less than the degree of depth away from connecting band one side, depth difference is 0.27～0.33mm, the degree of depth smooth variation of pit.
2. cylindrical polymeric lithium battery according to claim 1 is characterized in that: described pit periphery leaves the plane.
3. cylindrical polymeric lithium battery according to claim 1 is characterized in that: lead to two lugs on the described battery, two lugs are drawn from the upper end of lithium battery.
4. cylindrical polymeric lithium battery according to claim 1 is characterized in that: lead to two lugs on the described battery, a lug is drawn from the upper end of lithium battery, and another lug is drawn from the lower end of lithium battery.
5. cylindrical polymeric lithium battery according to claim 1 is characterized in that: lead to two lugs on the described battery, a lug is drawn from the upper end of lithium battery, and another side from lithium battery is drawn.
6. cylindrical polymeric lithium battery according to claim 1 is characterized in that: lead to two lugs on the described battery, a lug is drawn from the lower end of lithium battery, and another side from lithium battery is drawn.
7. cylindrical polymeric lithium battery according to claim 1 is characterized in that: lead to two lugs on the described battery, two lugs are drawn from the side of lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205023632U CN201797010U (en) | 2010-08-24 | 2010-08-24 | Cylindrical polymer lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205023632U CN201797010U (en) | 2010-08-24 | 2010-08-24 | Cylindrical polymer lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201797010U true CN201797010U (en) | 2011-04-13 |
Family
ID=43851910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205023632U Expired - Fee Related CN201797010U (en) | 2010-08-24 | 2010-08-24 | Cylindrical polymer lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201797010U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723447A (en) * | 2012-07-06 | 2012-10-10 | 东莞市金源电池科技有限公司 | Aluminum-plastic film of polymer lithium ion battery and shell punching method thereof |
| CN109786775A (en) * | 2019-01-22 | 2019-05-21 | 重庆市紫建电子有限公司 | A kind of production method of Soft Roll cylindrical battery |
-
2010
- 2010-08-24 CN CN2010205023632U patent/CN201797010U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723447A (en) * | 2012-07-06 | 2012-10-10 | 东莞市金源电池科技有限公司 | Aluminum-plastic film of polymer lithium ion battery and shell punching method thereof |
| CN102723447B (en) * | 2012-07-06 | 2015-10-28 | 东莞市金源电池科技有限公司 | A kind of aluminum plastic film of polymer Li-ion battery and rush shell side method |
| CN109786775A (en) * | 2019-01-22 | 2019-05-21 | 重庆市紫建电子有限公司 | A kind of production method of Soft Roll cylindrical battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20180824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |