CN2681364Y - Rechargeable battery having cathode assembly packaging - Google Patents
Rechargeable battery having cathode assembly packaging Download PDFInfo
- Publication number
- CN2681364Y CN2681364Y CNU2004200057158U CN200420005715U CN2681364Y CN 2681364 Y CN2681364 Y CN 2681364Y CN U2004200057158 U CNU2004200057158 U CN U2004200057158U CN 200420005715 U CN200420005715 U CN 200420005715U CN 2681364 Y CN2681364 Y CN 2681364Y
- Authority
- CN
- China
- Prior art keywords
- utmost point
- point group
- negative pole
- collection sheet
- flow collection
- 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 - Fee Related
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a rechargeable battery having electrode assembly and negative electrode packaging, which comprises an outer shell, a top cover, a positive electrode of an electrode assembly, the negative electrode of the electrode assembly, a negative and a bobbin-shaped current collecting sheet which is positioned in a middle hole of the outer shell, wherein, a sealing ring is arranged between the current collecting sheet and the outer shell, the top cover is fixed on the end surface on the upper part of the current collecting sheet, a safe air valve is arranged between the current collecting sheet and the top cover, the current collecting sheet is tightly connected with the positive electrode of the electrode assembly, the negative is tightly connected with the negative electrode of the electrode assembly, the neck part of the lower end of the outer shell is provided with a rolling groove, and the negative is connected with the outer shell which is positioned below the rolling groove. The utility model has the technical advantages that the electrode space in a battery is effectively increased, the inner impedance can be reduced, the utility model enhances the electric discharge capability of high current and prevents drum bottoms from occurring, the capacitance and the mechanical property of the battery are enhanced under the condition of no volume increase, and the safety of the utility model is also effectively enhanced.
Description
Technical field
The utility model relates to field of batteries, is specifically related to a kind of rechargeable battery with the encapsulation of utmost point group negative pole.
Background technology
At present, rechargeable battery faces the market demand that capacity improves constantly, and improve battery performance under the situation that does not increase volume, just must carry out the improvement of structure.Traditional structure is generally anodal encapsulating structure, and the internal electrode space is little, and the internal resistance of cell is also bigger, and the drum phenomenon at the end takes place sometimes.For electrokinetic cell, general large current discharging capability is all lower.Above-mentioned many disadvantages all awaits improving.
The utility model content
The purpose of this utility model is to overcome above-mentioned defective, effectively increases the electrode space of inside battery, under the situation that does not increase volume, provides a kind of capacity and mechanical performance all to improve and effectively improves the rechargeable battery of its fail safe.
For achieving the above object, the utility model provides tool a kind of rechargeable battery with the encapsulation of utmost point group negative pole, comprise shell 1, top cover 2, utmost point group positive pole 3, utmost point group negative pole 4 and egative film 5, also comprise bobbin flow collection sheet 6, flow collection sheet 6 is positioned at the mesopore of shell 1, is provided with sealing ring 7 between flow collection sheet 6 and the shell 1; Top cover 2 is fixed on the end face on flow collection sheet 6 tops; Be provided with safety air vavle 8 between flow collection sheet 6 and the top cover 2; Flow collection sheet 6 closely is connected with utmost point group positive pole 3; Egative film 5 closely is connected with utmost point group negative pole 4; Shell 1 lower, neck end is provided with slot rolling 9, and egative film 5 links to each other with the shell 1 that is positioned at slot rolling 9 belows.
The utlity model has the rechargeable battery of utmost point group negative pole encapsulation, top cover 2 is welded on the flow collection sheet 6.
The utlity model has the rechargeable battery of utmost point group negative pole encapsulation, the upper surface of flow collection sheet 6 has upwardly extending bound edge and top cover 2 snaps together.
The utlity model has the rechargeable battery of utmost point group negative pole encapsulation, egative film 5 is welded on the shell 1.
The utlity model has the rechargeable battery of utmost point group negative pole encapsulation, shell 1 is positioned at slot rolling 9 lower portion to have the bound edge and the egative film 5 that extend inwards and snaps together.
The utlity model has the rechargeable battery of utmost point group negative pole encapsulation, utmost point group anodal 3 is welded or is crimped on the flow collection sheet 6; Utmost point group negative pole 4 welds or is crimped on the egative film 5.
The utility model is owing to adopt and the diverse structural design of the anodal encapsulation of traditional utmost point group, traditional parts such as paste have been cancelled, become a kind of structure of negative pole packaged type of simplification, its beneficial technical effects is: the electrode space that effectively increases inside battery, internal driving is reduced, and the raising large current discharging capability also prevents at the bulging end, under the situation that does not increase volume, improved the capacity and the mechanical performance of battery, its fail safe also effectively improves.
Other details and the characteristics that the utlity model has the rechargeable battery of utmost point group negative pole encapsulation will be by embodiment explanations in detail in conjunction with the accompanying drawings hereinafter.
Description of drawings
Fig. 1 is the structure chart that the utlity model has the rechargeable battery of utmost point group negative pole encapsulation;
Fig. 2 is the partial structurtes figure of the utility model Fig. 2;
Fig. 3 is another partial structurtes figure of the utility model Fig. 2.
Embodiment
With reference to Fig. 2, the utlity model has the rechargeable battery of utmost point group negative pole encapsulation, comprise shell 1, top cover 2, utmost point group positive pole 3, utmost point group negative pole 4 and egative film 5, also comprise bobbin flow collection sheet 6, flow collection sheet 6 is positioned at the mesopore of shell 1, is provided with sealing ring 7 between flow collection sheet 6 and the shell 1; Top cover 2 is fixed on the end face on flow collection sheet 6 tops; Be provided with safety air vavle 8 between flow collection sheet 6 and the top cover 1; Flow collection sheet 6 closely is connected with utmost point group positive pole 3; Egative film 5 closely is connected with utmost point group negative pole 4; Shell 1 lower, neck end is provided with slot rolling 9, and egative film 5 links to each other with the shell 1 that is positioned at slot rolling 9 belows.
In an embodiment of the present utility model, utmost point group positive pole 3 is crimped on the flow collection sheet 6; Utmost point group negative pole 4 is crimped on the egative film 5.With reference to Fig. 2, top cover 2 is welded on the flow collection sheet 6.Shell 1 is positioned at slot rolling 9 lower portion to has inwards the bound edge and the egative film 5 that extend and snaps together.
In another embodiment of the present utility model, utmost point group positive pole 3 is welded on the flow collection sheet 6; Utmost point group negative pole 4 is welded on the egative film 5.With reference to Fig. 3, the upper surface of flow collection sheet 6 has upwardly extending bound edge and top cover 2 snaps together.With reference to Fig. 4, egative film 5 is welded on the shell 1.
The utility model has adopted and the diverse structural design of the anodal encapsulation of traditional utmost point group, i.e. the structure of negative pole packaged type, and in the manufacture process, encapsulation is to carry out at the negative place of the utmost point group of outer casing bottom.This structure has been cancelled traditional parts such as paste, effectively increases the electrode space of inside battery, internal driving is reduced, and prevent the possibility at the bulging end, under the situation that does not increase volume, has improved the capacity and the mechanical performance of battery.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; do not breaking away under the utility model design concept prerequisite; common engineers and technicians make the technical solution of the utility model in this area various modification and improvement; all should fall into protection range of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (7)
1. the rechargeable battery that has the encapsulation of utmost point group negative pole, comprise shell (1), top cover (2), utmost point group positive pole (3), utmost point group negative pole (4) and egative film (5), it is characterized in that: also comprise bobbin flow collection sheet (6), described flow collection sheet (6) is positioned at the mesopore of described shell (1), is provided with sealing ring (7) between described flow collection sheet (6) and the described shell (1); Described top cover (2) is fixed on the end face on described flow collection sheet (6) top; Be provided with safety air vavle (8) between described flow collection sheet (6) and the described top cover (2); Described flow collection sheet (6) closely is connected with described utmost point group positive pole (3); Described egative film (5) closely is connected with described utmost point group negative pole (4); Described shell (1) lower, neck end is provided with slot rolling (9), and described egative film (5) links to each other with the described shell (1) that is positioned at described slot rolling (9) below.
2. the rechargeable battery with the encapsulation of utmost point group negative pole according to claim 1, it is characterized in that: described top cover (2) is welded on the described flow collection sheet (6).
3. the rechargeable battery with the encapsulation of utmost point group negative pole according to claim 1, it is characterized in that: the upper surface of wherein said flow collection sheet (6) has upwardly extending bound edge and described top cover (2) snaps together.
4. according to claim 2 or 3 described rechargeable batteries with the encapsulation of utmost point group negative pole, it is characterized in that: described egative film (5) is welded on the described shell (1).
5. according to claim 2 or 3 described rechargeable batteries with utmost point group negative pole encapsulation, it is characterized in that: described shell (1) is positioned at described slot rolling (9) lower portion to have the bound edge and the described egative film (5) that extend inwards and snaps together.
6. the rechargeable battery with the encapsulation of utmost point group negative pole according to claim 4, it is characterized in that: described utmost point group positive pole (3) welds or is crimped on the described flow collection sheet (6); Described utmost point group negative pole (4) welds or is crimped on the described egative film (5).
7. the rechargeable battery with the encapsulation of utmost point group negative pole according to claim 5, it is characterized in that: described utmost point group positive pole (3) welds or is crimped on the described flow collection sheet (6); Described utmost point group negative pole (4) welds or is crimped on the described egative film (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200057158U CN2681364Y (en) | 2004-02-27 | 2004-02-27 | Rechargeable battery having cathode assembly packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200057158U CN2681364Y (en) | 2004-02-27 | 2004-02-27 | Rechargeable battery having cathode assembly packaging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2681364Y true CN2681364Y (en) | 2005-02-23 |
Family
ID=34605820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200057158U Expired - Fee Related CN2681364Y (en) | 2004-02-27 | 2004-02-27 | Rechargeable battery having cathode assembly packaging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2681364Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022158857A2 (en) | 2021-01-19 | 2022-07-28 | 주식회사 엘지에너지솔루션 | Electrode assembly and battery, and battery pack and vehicle comprising same |
| WO2022177371A1 (en) | 2021-02-19 | 2022-08-25 | 주식회사 엘지에너지솔루션 | Battery, and battery pack and vehicle comprising same |
-
2004
- 2004-02-27 CN CNU2004200057158U patent/CN2681364Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022158857A2 (en) | 2021-01-19 | 2022-07-28 | 주식회사 엘지에너지솔루션 | Electrode assembly and battery, and battery pack and vehicle comprising same |
| EP4044332A2 (en) | 2021-01-19 | 2022-08-17 | LG Energy Solution, Ltd. | Battery with current collector, battery pack and vehicle including such battery |
| EP4044334A2 (en) | 2021-01-19 | 2022-08-17 | LG Energy Solution, Ltd. | Battery with current collector, battery pack and vehicle including such battery |
| EP4312301A2 (en) | 2021-01-19 | 2024-01-31 | Lg Energy Solution, Ltd. | Battery, and battery pack and vehicle including the same |
| WO2022177371A1 (en) | 2021-02-19 | 2022-08-25 | 주식회사 엘지에너지솔루션 | Battery, and battery pack and vehicle comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |