CN203839448U - Cylindrical battery cell with function of introducing single tab from side surface - Google Patents
Cylindrical battery cell with function of introducing single tab from side surface Download PDFInfo
- Publication number
- CN203839448U CN203839448U CN201420068361.5U CN201420068361U CN203839448U CN 203839448 U CN203839448 U CN 203839448U CN 201420068361 U CN201420068361 U CN 201420068361U CN 203839448 U CN203839448 U CN 203839448U
- Authority
- CN
- China
- Prior art keywords
- core
- drawn
- volume core
- negative electrode
- cylindrical battery
- 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
Links
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- 239000012785 packaging film Substances 0.000 claims abstract description 7
- 229920006280 packaging film Polymers 0.000 claims abstract description 7
- 230000005404 monopole Effects 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 7
- 239000011889 copper foil Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004804 winding Methods 0.000 abstract 6
- 238000009501 film coating Methods 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 239000005030 aluminium foil Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003571 electronic cigarette Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
Abstract
The utility model provides a cylindrical battery cell with a function of introducing a single tab from a side surface. The cylindrical battery cell comprises a winding cell and an aluminum plastic packaging film coating the winding cell, wherein the winding cell is formed by winding a positive pole, a negative pole and a diaphragm; a positive tab is welded on an aluminum foil of the positive pole; a negative tab is welded on a copper foil of the negative pole; one of the positive tab and the negative tab is introduced from the side surface of the winding cell, and the other one is introduced from the end part of the winding cell; and the positive tab and the negative tab are directly welded on a battery protection plate. According to the cylindrical battery cell, the tabs can be connected with the battery protection plate without the aid of a wire, so that the size and the production cost of the battery cell are reduced.
Description
Technical field
The utility model relates to battery technology field, is specifically related to a kind of side and draws the cylindrical battery core of monopole ear.
Background technology
Known, battery protecting plate, the surface-mounted integrated circuit shielding for rechargeable battery (referring generally to lithium battery), is to process important component after secondary cell.Can not overcharge because the material of rechargeable battery itself has determined it, cross put, overcurrent, short circuit and superhigh temperature discharge and recharge, therefore rechargeable battery pack always and then baffle and an a slice current protector with up-sampling resistance occur.Wherein, battery protecting plate is positioned at one end of battery core, and anode ear, the negative electrode lug of rechargeable battery are connected with battery protecting plate respectively, to reach protection object.
But in the prior art, the anode ear of cylindrical battery core, negative electrode lug are drawn from the two ends of battery core, this just requires the lug that is positioned at the battery core other end to be connected with the battery protecting plate that is positioned at the battery core other end by welding lead.Said structure will cause battery core overall dimensions to increase, and affect capacity and the application of battery core, battery product (as the electronic cigarette) field having higher requirements for battery core size especially, and the application space of large-sized battery core is extremely restricted.In addition, welding lead has also increased operation, causes production efficiency to reduce and production cost increase.
Utility model content
The purpose of this utility model is to overcome weak point of the prior art, and the cylindrical battery core that provides a kind of side to draw monopole ear, to reduce size and the production cost of battery core.
The purpose of this utility model is achieved through the following technical solutions:
The cylindrical battery core of monopole ear is drawn in a kind of side; comprise volume core and be coated on the plastic-aluminum packaging film on volume core; described volume core is mutually reeled and is formed by positive pole, negative pole and barrier film; on described positive pole, be welded with anode ear; on negative pole, be welded with negative electrode lug; in described anode ear, negative electrode lug, draw a side from volume core, and another one is drawn from the end of volume core, and described anode ear, negative electrode lug are directly welded on battery protecting plate.
In the utility model; inventor is by changing to by one of the lug that is originally arranged in battery core two ends a side that is positioned at battery core; then in the situation that saving wire, directly by two tab weldings on battery protecting plate, reached and reduced the size of battery core and the object of production cost.Innovative point of the present utility model is also, the technological means adopting is simple, easily realizes, and do not need additionally to increase supplementary structure.
As improving technical scheme, described anode ear of drawing from volume core side or the negative electrode lug surfaces of metallic strip insulating cement paper bag of drawing from volume core side cover, and prevent short circuit and damage packaging film.
Concrete, the upper surface of described battery protecting plate and lower surface are provided with for fixing colloid, and described colloid can have multiple choices.In the utility model, the preferred adhesion strength of inventor is strong, has good damping performance and sandwich rubber that can anti-be full of cracks.
Concrete, the angle that described anode ear is drawn from positive pole aluminium foil is 85-95 degree, and is greater than 0mm with the most antermarginal distance of positive pole aluminium foil.
Concrete, the angle that described negative electrode lug is drawn from negative copper foil is 85-95 degree, and is greater than 0mm with the most antermarginal distance of negative copper foil.
The utility model has the following advantages and beneficial effect compared to existing technology:
(1) the utility model need to not realized lug by wire and is connected with battery protecting plate, has reduced size and the production cost of battery core.
(2) the utility model covers by the lug surfaces of metallic strip insulating cement paper bag of drawing in volume core side, prevents short circuit and damage packaging film.
(3) the utility model carries out particular design by angle and position that lug is drawn, is convenient to battery protecting plate welding and has improved lug fastness.
Brief description of the drawings
Fig. 1 is the utility model core strueture schematic diagram.
Fig. 2 is anode ear and positive pole aluminium foil syndeton schematic diagram.
Fig. 3 is negative electrode lug and negative copper foil syndeton schematic diagram.
Fig. 4 is the utility model battery core and battery protection board assembling structure schematic diagram.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but the execution mode that the utility model is created is not limited to this.
Embodiment 1
The present embodiment provides the cylindrical core strueture that negative electrode lug is drawn from volume core side.
As shown in Figure 1, the cylindrical battery core of the utility model, comprises volume core 1 and is coated on the plastic-aluminum packaging film 2 on volume core 1.Wherein, volume core 1 is mutually reeled and is formed by positive pole, negative pole and barrier film, is welded with anode ear 3 on positive pole, is welded with negative electrode lug 4 on negative pole, and negative electrode lug 4 is drawn from the side of volume core 1, and anode ear 3 is drawn from the end of volume core 1.In addition, in order to improve sealing, anode ear 3, negative electrode lug 4 are equipped with tab 5 joining position with plastic-aluminum packaging film 2; Be prone to fracture for fear of anode ear 3 at the more than 5 exposed aluminium material position of tab, anode ear 3 is designed to aluminium-to-nickel structure, concrete, more than 5 anode ear 3 of tab is made up of aluminium strip welding nickel strap.
As shown in Figure 2, the angle that anode ear 3 is drawn from positive pole aluminium foil 7 is 85-95 degree, and is greater than 0mm with the distance at the nearest edge 71 of positive pole aluminium foil.
As shown in Figure 3, the angle that negative electrode lug 4 is drawn from negative copper foil 8 is 85-95 degree, and is greater than 0mm with the distance at the nearest edge 81 of negative copper foil.
As shown in Figure 4, after the assembling of the utility model battery core, the negative electrode lug 4 of drawing from volume core 1 side, the anode ear 3 of drawing from volume core 1 end are welded in respectively battery protecting plate 9 correspondence positions, and wherein negative electrode lug 4 surfaces are provided with insulation gummed paper.In addition, the upper surface of battery protecting plate 9 and lower surface are provided with the sandwich rubber 10 that 1mm is thick, and this sandwich rubber 10 plays fixing and shockproof, and anti-short circuit effect, has effectively protected battery core.
The concrete making flow process that the cylindrical battery core of monopole ear is drawn in the utility model side comprises:
First, anode ear is directly welded on positive pole aluminium foil, negative electrode lug is directly welded on negative copper foil.
Secondly, make volume core by coiling.
Finally, after sealing, carry out successively fluid injection, preliminary filling, two edge sealing heat-sealings, continuous filling, until battery core rolls off the production line.
Embodiment 2
The present embodiment provides the cylindrical core strueture that anode ear is drawn from volume core side.
As different from Example 1, the anode ear in the present embodiment is drawn from the side of volume core, and negative electrode lug is drawn from the end of volume core.
It should be noted that, structural design of the present utility model not only limits and is applied on cylindrical battery, also may extend to other similar rechargeable battery fields.
The above embodiment has only expressed execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, not departing under prerequisite of the present utility model, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (3)
1. the cylindrical battery core of monopole ear is drawn in a side; comprise volume core and be coated on the plastic-aluminum packaging film on volume core; described volume core is mutually reeled and is formed by positive pole, negative pole and barrier film; on described positive pole, be welded with anode ear; on negative pole, be welded with negative electrode lug; it is characterized in that: in described anode ear, negative electrode lug, draw a side from volume core, and another one is drawn from the end of volume core, and described anode ear, negative electrode lug are directly welded on battery protecting plate.
2. the cylindrical battery core of monopole ear is drawn in side according to claim 1, it is characterized in that: described anode ear of drawing from volume core side or the negative electrode lug surface of drawing from volume core side are provided with insulation gummed paper.
3. the cylindrical battery core of monopole ear is drawn in side according to claim 1 and 2, it is characterized in that: upper surface and the lower surface of described battery protecting plate are respectively equipped with sandwich rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068361.5U CN203839448U (en) | 2014-02-17 | 2014-02-17 | Cylindrical battery cell with function of introducing single tab from side surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068361.5U CN203839448U (en) | 2014-02-17 | 2014-02-17 | Cylindrical battery cell with function of introducing single tab from side surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203839448U true CN203839448U (en) | 2014-09-17 |
Family
ID=51517251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420068361.5U Expired - Lifetime CN203839448U (en) | 2014-02-17 | 2014-02-17 | Cylindrical battery cell with function of introducing single tab from side surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203839448U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275557A (en) * | 2017-08-03 | 2017-10-20 | 深圳市新昊青科技有限公司 | Universal rechargeable battery and its assemble method that a kind of use lithium-ion electric core is constituted |
| CN112786833A (en) * | 2021-01-28 | 2021-05-11 | 湖南立方新能源科技有限责任公司 | Reference electrode, three-electrode battery and preparation method thereof |
| WO2024031657A1 (en) * | 2022-08-12 | 2024-02-15 | 东莞新能德科技有限公司 | Battery, and soldering processes therefor |
-
2014
- 2014-02-17 CN CN201420068361.5U patent/CN203839448U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275557A (en) * | 2017-08-03 | 2017-10-20 | 深圳市新昊青科技有限公司 | Universal rechargeable battery and its assemble method that a kind of use lithium-ion electric core is constituted |
| CN112786833A (en) * | 2021-01-28 | 2021-05-11 | 湖南立方新能源科技有限责任公司 | Reference electrode, three-electrode battery and preparation method thereof |
| WO2024031657A1 (en) * | 2022-08-12 | 2024-02-15 | 东莞新能德科技有限公司 | Battery, and soldering processes therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111403789B (en) | Electrode assembly and battery | |
| CN206332097U (en) | A kind of secondary cell battery core | |
| CN2909544Y (en) | Winding lithium battery electro-chip structure | |
| CN203406360U (en) | Cover plate structure for square aluminium-shell lithium ion battery | |
| CN106159196A (en) | Bury lug formula pole piece and lithium ion battery | |
| CN203839448U (en) | Cylindrical battery cell with function of introducing single tab from side surface | |
| CN202094228U (en) | Flexible package lithium ion battery with bump recovery device | |
| CN210805936U (en) | Single battery and power battery pack | |
| CN106803565A (en) | Battery | |
| CN203574066U (en) | Lithium ion battery with multi-core structure | |
| CN106992313B (en) | Secondary battery | |
| CN111029490A (en) | Single battery and power battery pack | |
| CN207530032U (en) | A kind of lithium ion cell polar ear of high sealing liquid-leakage preventing | |
| CN105633333A (en) | Cylindrical-structure lithium ion battery and preparation method thereof | |
| CN202384439U (en) | Lithium ion battery winding structure | |
| CN102760905A (en) | High-capacity lithium battery | |
| CN205385061U (en) | Secondary battery | |
| CN202503058U (en) | Lug position structure for positive electrode piece and negative electrode piece of polymer lithium ion battery | |
| CN203812947U (en) | Electric core structure with electrode lugs at same end | |
| CN207731993U (en) | Unidirectional lug high power capacity cylindrical lithium ion power battery | |
| CN104091912B (en) | Extremely pole ear welding method of a kind of lithium battery with multi pole ears volume core | |
| CN203536501U (en) | Battery protection plate and lithium ion battery with same | |
| CN205385074U (en) | High -energy lithium ion battery | |
| CN202585599U (en) | Battery protection board subassembly and lithium-ion battery employing same | |
| CN103000950B (en) | Method for assembling battery cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |