CN2845185Y - Thermal pressed tray for square lithium ion battery electrode set - Google Patents
Thermal pressed tray for square lithium ion battery electrode set Download PDFInfo
- Publication number
- CN2845185Y CN2845185Y CNU2005201239552U CN200520123955U CN2845185Y CN 2845185 Y CN2845185 Y CN 2845185Y CN U2005201239552 U CNU2005201239552 U CN U2005201239552U CN 200520123955 U CN200520123955 U CN 200520123955U CN 2845185 Y CN2845185 Y CN 2845185Y
- Authority
- CN
- China
- Prior art keywords
- main body
- tray main
- pole
- tray
- utmost point
- 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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- Y02E60/122—
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model relates to a hot pressing tray of a square lithium ion battery pole set, which is composed of a tray main body and a tray handle which is connected with the lower part of the tray main body. The utility model is characterized in that a strip-shaped protruding ridge is arranged on the upper surface of the tray main body in the mode of longitudinal separation; grids are arranged on the upper part of the protruding ridge in parallel; the edge of the protruding ridge is in a circular arc shape; the connecting position of the protruding ridge and the tray main body is in chamfering transition, and the protruding ridge and the tray main body are formed into integration. Because the tray is hollow corresponding to the position of a pole ear, when a pole set is pressed, only both sides of the pole set are pressed, but the pole ear can not be pressed; therefore, a diaphragm on the position of the pole ear can not be damaged. The thickness pressing to the other positions of the pole set is consistent so pressure force is uniform. The utility model can effectively lower the pressure force to the diaphragm on the position of the pole ear and reduce the damages of a pole piece of the diaphragm; besides, other positions of the pole set can not be damaged; simultaneously, the grids are made of materials, such as sponges or soft rubber, etc. so as to ensure the good contact of the pole set. The utility model has the advantages of less possibility of damage, effective improvement of battery safety and prolongation of the service life.
Description
Technical field
The utility model relates to a kind of square lithium ion battery, particularly a kind of square lithium ion battery utmost point group hot pressing pallet.
Background technology
At present, square lithium ion battery utmost point group hot pressing pallet is made up of the pallet handle that tray main body and its underpart connect usually, and tray main body is tabular; For square lithium ion battery, utmost point group needs first hot pressing when going into shell, and utmost point group is just gone into shell easily, is not dampened.Because existing tray surface is the plane, the lug place that is in contact with it is the thickest position of utmost point group, so the pressure that the lug place is subjected to is then maximum, easily makes barrier film attenuation herein, thereby reduces the fail safe of battery; As easily causing adverse consequencess such as self-discharge of battery, quick-fried spray, and influence the result of use and the useful life of entire cell.
The utility model content
The purpose of this utility model is to overcome above-mentioned weak point, provides a kind of effective assurance battery performance good, safe and reliable square lithium ion battery utmost point group hot pressing pallet.
The technical scheme that the utility model adopted is for achieving the above object: a kind of square lithium ion battery utmost point group hot pressing pallet, form by the pallet handle that tray main body and its underpart connect; It is characterized in that tray main body upper surface longitudinal separation is provided with the bar shaped fin, the fin upper parallel is provided with grid.
Described fin and tray main body are made as an integral body or are connected to form one.
Described fin height is 0.2～0.3mm, and it is circular-arc that the fin edge all is, and fin and tray main body joint are with the chamfering transition.
Described grid adopts sponge or soft rubber material to be bonded on the fin, highly is 4～6mm, and width is 8～10mm.
The beneficial effects of the utility model are: this pallet when therefore pressing utmost point group, only is pressed onto two limits of utmost point group, and presses less than lug because corresponding lug position is empty, and therefore the barrier film to the lug place can not cause damage.And press to such an extent that other position thickness of utmost point group is consistent, therefore pressure is more even, and it can effectively reduce the pressure to lug position barrier film, reduces the infringement to the barrier film pole piece, so can not cause damage to other position of utmost point group yet, effectively avoid the generation of phenomenons such as self-discharge of battery, quick-fried spray.Simultaneously grid adopts the materials such as rubber of sponge or softer to make, and is good with contacting of utmost point group to guarantee, easy damaged not also can improve the security reliability of battery, prolongs its useful life.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is Fig. 1 upward view;
Fig. 3 is the utility model user mode structural representation when utmost point group is set;
Among the figure: 1 tray main body, 2 pallet handles, 3 fins, 4 grids, 5 utmost point groups, 6 lugs.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, details are as follows to embodiment, structure, feature that foundation the utility model provides:
As shown in Figure 1 and Figure 2, a kind of square lithium ion battery utmost point group hot pressing pallet is made up of 2 the pallet that tray main body 1 and its underpart connect, and pallet can be welded in 2 on the tray main body 1; It is characterized in that tray main body 1 upper surface longitudinal separation is provided with bar shaped fin 3, fin 3 upper parallel are provided with grid 4.
Described fin 3 is made as an integral body with tray main body 1 or is connected to form one; Fin 3 spacings are determined corresponding to 6 spacings of the lug on the utmost point group 5.
Described fin 3 highly is 0.2～0.3mm, and fin 3 edges all are circular-arc, and fin 3 and tray main body 1 joint are with the chamfering transition.
Described grid 4 adopts sponge or soft rubber material to be bonded on the fin 3, and the width of its corresponding utmost point group 5 in interval is determined; Grid 4 highly is 4～6mm, and width is 8～10mm.Grid 4 adopts soft materials, contacts well easy damaged not, the security reliability of raising battery guaranteeing with utmost point group 5.
Tray main body 1 can be adopted as metal material with fin 3, and as stainless steel etc., tray main body 1 can directly be processed to form by sheet material with fin 3 or split production can adopt welding to form one; Because tray main body 1 is provided with fin 3, grid 4 is spacing, makes utmost point group 5 accurate positionings, easy to operate are installed.
During application, because installing the tray main body 1 of lug 6 positions, the utility model is hollow shape, as shown in Figure 3.Therefore when pressing utmost point group 5, only be pressed onto two limits of utmost point group 5, and press less than lug 6, therefore the barrier film to lug 6 places can not damage.And press to such an extent that utmost point group 5 other position thickness are more consistent, so pressure is more even, so can not damage to utmost point group 5 other positions yet.Grid 4 can limit the position of utmost point group 5, helps putting of utmost point group 5, increases work efficiency.Adopt materials such as sponge and soft rubber, utmost point group 5 is squeezed and damages in the time of can avoiding because of pressure utmost point group 5.
The applicating example explanation of the utility model in square lithium ion battery:
With 043450 battery is example, and the same batch of utmost point assembling that two kinds of pallets are extruded is made into battery, carries out the thickness contrast, no significant difference.As shown in the table:
| The battery numbering | Original pallet | The utility model pallet |
| 1 | 4.36 | 4.36 |
| 2 | 4.31 | 4.3 |
| 3 | 4.37 | 4.34 |
| 4 | 4.36 | 4.36 |
| 5 | 4.39 | 4.39 |
| 6 | 4.26 | 4.31 |
| 7 | 4.39 | 4.36 |
| 8 | 4.3 | 4.39 |
| 9 | 4.32 | 4.36 |
| 10 | 4.39 | 4.35 |
| 11 | 4.37 | 4.32 |
| 12 | 4.37 | 4.31 |
| 13 | 4.37 | 4.33 |
| 14 | 4.3 | 4.35 |
| 15 | 4.34 | 4.34 |
| Mean value | 4.347 | 4.345 |
The battery that adopts the assembling of the utility model hot pressing utmost point to join is looked forward to mark safety and other performance test, satisfy enterprise's mark requirement fully, dependable performance; Put the location that this pallet its specific structure design simultaneously helps utmost point group, simplifies the operation, and improves fail safe and operating efficiency.
Above-mentioned with reference to embodiment to the detailed description that this square lithium ion battery utmost point group hot pressing pallet carries out, be illustrative rather than determinate, therefore, should belong within the protection range of the present utility model in the variation and the modification that do not break away under the utility model general plotting.
Claims (4)
1, a kind of square lithium ion battery utmost point group hot pressing pallet is made up of the pallet handle that tray main body and its underpart connect; It is characterized in that tray main body upper surface longitudinal separation is provided with the bar shaped fin, the fin upper parallel is provided with grid.
2, square lithium ion battery utmost point group hot pressing pallet according to claim 1, it is one whole or be connected to form one to it is characterized in that described fin and tray main body are made as.
3, square lithium ion battery utmost point group hot pressing pallet according to claim 1 is characterized in that described fin height is 0.2～0.3mm, and it is circular-arc that the fin edge all is, and fin and tray main body joint are with the chamfering transition.
4, square lithium ion battery utmost point group hot pressing pallet according to claim 1 is characterized in that described grid adopts sponge or soft rubber material to be bonded on the fin, highly is 4～6mm, and width is 8～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201239552U CN2845185Y (en) | 2005-12-13 | 2005-12-13 | Thermal pressed tray for square lithium ion battery electrode set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201239552U CN2845185Y (en) | 2005-12-13 | 2005-12-13 | Thermal pressed tray for square lithium ion battery electrode set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2845185Y true CN2845185Y (en) | 2006-12-06 |
Family
ID=37487128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201239552U Expired - Fee Related CN2845185Y (en) | 2005-12-13 | 2005-12-13 | Thermal pressed tray for square lithium ion battery electrode set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2845185Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868171A (en) * | 2015-04-28 | 2015-08-26 | 天津力神电池股份有限公司 | Pressurizing system for lithium ion battery pole group |
| CN109659599A (en) * | 2018-12-25 | 2019-04-19 | 浙江杭可科技股份有限公司 | Fireproof box for soft bag lithium ionic cell forming and capacity dividing |
-
2005
- 2005-12-13 CN CNU2005201239552U patent/CN2845185Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868171A (en) * | 2015-04-28 | 2015-08-26 | 天津力神电池股份有限公司 | Pressurizing system for lithium ion battery pole group |
| CN109659599A (en) * | 2018-12-25 | 2019-04-19 | 浙江杭可科技股份有限公司 | Fireproof box for soft bag lithium ionic cell forming and capacity dividing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061206 Termination date: 20121213 |