CN202373666U - Exhaust device for flexibly packaged lithium ion battery - Google Patents
Exhaust device for flexibly packaged lithium ion battery Download PDFInfo
- Publication number
- CN202373666U CN202373666U CN2011205379317U CN201120537931U CN202373666U CN 202373666 U CN202373666 U CN 202373666U CN 2011205379317 U CN2011205379317 U CN 2011205379317U CN 201120537931 U CN201120537931 U CN 201120537931U CN 202373666 U CN202373666 U CN 202373666U
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- Prior art keywords
- lithium ion
- exhaust
- tubing string
- patrix
- cylinder body
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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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- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses an exhaust device for a flexibly packaged lithium ion battery and aims at providing an exhaust device which has the advantages that the production cost is lowered, and the using performance of the battery is improved. The exhaust device comprises an upper die, a lower die and an exhaust tubular column, wherein the exhaust tubular column is arranged on the battery, communicated with the inner part of the battery and arranged between a positive pole and a negative pole; and a first hot melting material layer is arranged on the outer side surface of the exhaust tubular column, and the exhaust tubular column is connected with an aluminum plastic film of the packaged battery into a whole by hot sealing.
Description
Technical field
The utility model relates to a kind of exhaust apparatus, is specifically related to a kind of exhaust apparatus that is applied to stacked flexible packing lithium ion battery.
Background technology
Lithium ion battery need change in process of production, and changing into is the process that standard activates lithium ion battery that discharges and recharges through certain.Lithium ion battery can produce gas in formation process, these gases need emit from inside battery, otherwise will influence the performance of lithium ion battery.For the exhaust mode of flexible packing lithium ion battery, generally all be to adopt gasbag-type at present, promptly when encapsulating electric core, except that sealing electric core fully, also reserve a part of aluminum plastic film and form air bag, be used to store the gas that produces when changing into aluminum plastic film.Change at lithium ion battery and to finish back excision air bag and encapsulate.The shortcoming of this method is the waste aluminum plastic film, increases the production cost of lithium ion battery; This mode can not thoroughly be got rid of the gas that produces in the formation process in addition, influences the useful life and the power supply stability of battery.In order to solve existing method to the wasting problem of aluminum plastic film, some schemes have also been done some improvement to this.For example, Chinese patent publication number CN102117936A, open day on 07 06th, 2011; The name of innovation and creation is called the flexible packing lithium ion battery chemical synthesizing method, and this application case discloses a kind of flexible packing lithium ion battery chemical synthesizing method, and electric core leaves liquid injection pipe after packing with aluminum plastic film; In the formation process; Adopt reflux that the aluminum plastic film inner chamber is vacuumized, use inert gas back pressure electrolyte again, seal liquid injection pipe at last.This method is used for flexible packing lithium ion battery and changes into, though solved the wasting problem of aluminum plastic film, the equipment cost of this scheme itself is high, makes the production cost of lithium ion battery improve.On the other hand for the stacked flexible packing lithium ion battery that adopts the aluminum plastic film encapsulation; In formation process, adopt the mode that the aluminum plastic film inner chamber is vacuumized to get rid of gas; Even thereby inside battery produces the negative pressure gas bleeding; Because it is very high to operation technological requirement that aluminum plastic film hardness is hanged down in extracting the process of gas, thereby otherwise make aluminum plastic film generation depression and wrinkling influence battery quality easily.
The utility model content
The utility model purpose is to adopt the exhaust mode of gasbag-type that aluminum plastic film is caused waste in order to overcome flexible packing lithium ion battery, increases the production cost of lithium ion battery; And the exhaust mode of gasbag-type can not thoroughly be got rid of the gas that produces in the formation process; Influence the problem of lithium ion battery quality; Provide a kind of and can effectively reduce production costs, also thoroughly get rid of the gas that produces in the formation process, raising battery useful life and the stable flexible packing lithium ion battery exhaust apparatus of power supply.
The technical scheme of the utility model is:
A kind of exhaust apparatus of flexible packing lithium ion battery comprises counterdie, patrix and is arranged on the exhaust tubing string that is communicated with inside battery on the battery that said exhaust tubing string is located between the positive and negative lug; Exhaust tubing string lateral surface is provided with first layer of heat-fusible material.The exhaust tubing string of this programme seals through mould; The plastic film of first layer of heat-fusible material that is provided with on the exhaust tubing string lateral surface with the aluminum plastic film surface that is used for packaged battery is connected as a single entity, makes between exhaust tubing string lateral surface and the aluminum plastic film to have good sealing property.The lithium ion battery of this scheme can carry out fluid injection through the exhaust tubing string simultaneously; After fluid injection finishes, lithium ion battery is placed in the upper die and lower die and changes into; Because lithium ion battery places in the die cavity of upper and lower mould, therefore flexible packing lithium ion battery can not produce expansion in formation process, and the gas that produces in the formation process will be discharged by the exhaust tubing string; After changing into end, die sinking is also sealed the exhaust tubing string.On the other hand, because the electric core of positive and negative lug and inside lithium ion cell is interconnective, the portion gas that in formation process, produces can be difficult for attached to the connecting portion of positive and negative lug and electric core discharging; And the position of the exhaust outlet that general flexible packing lithium ion battery is provided with in formation process generally all is on the side of battery, makes the gas of connecting portion of positive and negative lug and electric core more be difficult for discharge.Lithium ion battery is in charge and discharge process like this, and the minute bubbles of the connecting portion of positive and negative lug and electric core can influence lithium ion and between both positive and negative polarity, move, thereby influences the serviceability of lithium ion battery.The exhaust tubing string of this programme exhaust apparatus is arranged between the positive and negative lug, can be fast and effectively the gas of the connecting portion of positive and negative lug and electric core be discharged to outside batteries.
As preferably; The exhaust tubing string is a metal tube; Exhaust tubing string middle part lateral surface is provided with the ring-shaped depression that a circle caves inward, and the exhaust tubing string medial surface that is positioned at ring-shaped depression top is provided with second layer of heat-fusible material, and the fusing point of said second layer of heat-fusible material is higher than first layer of heat-fusible material.Because the fusing point of second layer of heat-fusible material is higher than first layer of heat-fusible material; When between exhaust tubing string and aluminum plastic film, being connected and sealed, being located at exhaust tubing string medial surface and being provided with second layer of heat-fusible material and can not dissolving in the through hole of exhaust tubing string, to form and seal through heat-sealing.After changing into end owing to also have second layer of heat-fusible material on the exhaust tubing string medial surface, can seal the exhaust tubing string through heat-sealing, when heat-sealing second layer of heat-fusible material dissolve and assemble to form and seals at ring-shaped depression place on exhaust tubing string medial surface.
As preferably, exhaust apparatus also comprises: bracing frame, vertically be arranged on the cylinder body on bracing frame top; Said cylinder body inside is provided with piston, and the cylinder body top is provided with switch valve and vertical hydraulic cylinder or pneumatic cylinder; The cylinder body and the cylinder body of said hydraulic cylinder or pneumatic cylinder are tightly connected, and the piston rod of hydraulic cylinder or pneumatic cylinder is connected with piston; Said piston is provided with catheter, and catheter two ends up and down lays respectively at the inside and outside both sides of cylinder body; Catheter port place is positioned at the fluid reservoir that cylinder body inside is provided with open upper end, and the catheter lower port is provided with articulation; Said cylinder body is positioned at the top of counterdie, patrix; Said counterdie is provided with the die cavity of open upper end; And the cross-sectional area of patrix is less than the aperture area of counterdie die cavity, and said patrix is connected with piston through connecting rod, and the patrix edge is provided with upwardly extending step, and the edge of step is provided with the grab that stretches out downwards; Be provided with draw-in groove with respect to grab on the said counterdie lateral surface.Because pole piece and the resistance between the pole piece, the viscosity of electrolyte and the electrolyte surface tension force in source, interface of inside lithium ion cell, make the portion gas that inside battery produces in the formation process be difficult to be discharged to outside batteries.But the exhaust apparatus through this scheme can thoroughly be discharged the gas that inside battery in the formation process produces.After lithium ion battery changed into end, at first the off switch valve made inside battery be connected to a sealed hollow through the internal cavities of exhaust tubing string and catheter and cylinder body; Then piston is moved down, move down together thereby drive patrix through hydraulic cylinder; In the process that patrix moves down, flexible packing lithium ion battery is pushed, the air pressure in the cylinder body can form negative pressure in the process that piston moves down simultaneously; Through patrix to the negative pressure of outside extruding force of flexible packing lithium ion and cylinder body internal cavities suction to inside battery formation; Flexible packing lithium ion battery inner pole piece and the electrolyte in the gap between the pole piece are entered in the fluid reservoir through exhaust tubing string and catheter; Minute bubbles electrolyte is entered into the process electrolyte of fluid reservoir by inside battery in can be destroyed, and from electrolyte, discharge.After gas is discharged electrolyte, make on the piston through hydraulic cylinder and to move; Because patrix is provided with grab, counterdie lateral surface and is provided with the grab of draw-in groove patrix in the process that piston moves down and can engages with draw-in groove on the counterdie lateral surface; The lithium ion battery that can drive in the process of on piston, moving in upper die and lower die and the upper die and lower die moves on together; Air pressure in the process of on piston, moving in the cylinder body can increase the electrolyte back pressure in the fluid reservoir to inside battery gradually.Through this process the residual gas of inside lithium ion cell is got rid of completely.
As preferably, be positioned at lateral surface, lower surface and the corrosion-resistant plastic layer that the exhaust tubing string medial surface that is positioned at the ring-shaped depression bottom is provided with the electrolyte resistance corrosion of the exhaust tubing string of inside battery.Because the exhaust tubing string is metal tube and contacts with the electrolyte of inside lithium ion cell, in charge and discharge process, may cause producing short circuit between the positive and negative lug; Therefore; In lateral surface, the lower surface of the exhaust tubing string that is positioned at inside battery and be positioned at the plastic layer that is provided with the electrolyte resistance corrosion on the exhaust tubing string medial surface of ring-shaped depression bottom; The exhaust tubing string and the electrolyte of metal material are separated, avoid causing in the charge and discharge process producing short circuit between the positive and negative lug.
As preferably; The grab lower horizontal be provided with the clamping face that is used to cooperate clamping; Said draw-in groove upper level be provided with the supporting surface that is used to cooperate clamping; Said clamping face is positioned at the below of patrix lower surface, and clamping face is identical with the spacing between supporting surface and the counterdie upper surface with spacing between the patrix lower surface.When the lithium ion battery in piston drives upper die and lower die and upper die and lower die moves on together like this, make the lower surface of patrix flush with the upper surface of counterdie; And the size of the die cavity that is provided with on the counterdie and shape are set to identical with the size and the shape of the lithium ion battery of placing; Make the size of the sealing die cavity that upper die and lower die upper die and lower die in last process of moving form with pushed by patrix before the lithium ion battery size identical; Therefore with the electrolyte back pressure in the fluid reservoir behind inside battery, can make the shape of lithium ion battery return to the state before changing into.
As preferably, said fluid reservoir is funnel-form.Fluid reservoir is funnel-form and is convenient to the electrolyte backflow.
As preferably, exhaust apparatus also comprises the gasbag that aluminum plastic film is processed, and said gasbag is provided with flexible pipe, and flexible pipe and switch valve external port are tightly connected.The gas of inside battery output and cylinder body gas inside can be collected in the gasbag in the formation process, avoid being discharged in the air.This gasbag can heavily cover use simultaneously.
The beneficial effect of the utility model is: can thoroughly get rid of the gas that inside battery produces in the formation process, reduce production costs, improve the battery serviceability simultaneously.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is a kind of structural representation at the exhaust tubing string place of the utility model.
Fig. 3 is the structural representation at A place among Fig. 1.
Fig. 4 is a kind of structural representation of exhaust apparatus in exhaust process of a kind of flexible packing lithium ion battery of the utility model.
Fig. 5 is a kind of structural representation of exhaust apparatus in back pressure electrolyte process of a kind of flexible packing lithium ion battery of the utility model.
Among the figure: counterdie 1, battery 2, patrix 3, exhaust tubing string 4, bracing frame 5, cylinder body 6, piston 7, hydraulic cylinder 8, switch valve 9, catheter 10, piston rod 11, connecting rod 12, fluid reservoir 13, connecting rod 14, first layer of heat-fusible material 15, ring-shaped depression 16, second layer of heat-fusible material 17, corrosion-resistant plastic layer 18, anode ear 19, negative electrode lug 20, step 21, grab 22, draw-in groove 23, clamping face 24, supporting surface 25, articulation 26.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As shown in Figure 1, a kind of exhaust apparatus of flexible packing lithium ion battery comprises counterdie 1, patrix 3, bracing frame 5, is arranged on exhaust tubing string 4 that is communicated with inside battery on the battery 2 and the cylinder body 6 that vertically is arranged on bracing frame top.Cylinder body 6 is positioned at the top of counterdie, patrix.Cylinder body 6 tops are provided with switch valve 9 and vertical hydraulic cylinder 8.The cylinder body of said hydraulic cylinder 8 is tightly connected through welding and cylinder body 6, and the piston rod 11 of hydraulic cylinder is connected with piston 7 through the connecting rod 12 of n font.Said cylinder body 6 inside are provided with piston 7, and piston is provided with catheter 10.Catheter lays respectively at the inside and outside both sides of cylinder body in two ends about in the of 10, and catheter port place is positioned at cylinder body inside and is provided with funnelform fluid reservoir 13 of being of open upper end, and the catheter lower port is provided with articulation 26.Fluid reservoir is positioned at pillar 12 belows of n font.Said counterdie 1 is provided with the die cavity of open upper end, and it is identical with the size and the shape of the lithium ion battery of placing that the size of die cavity and shape are set to.The cross-sectional area of said patrix 3 is less than the aperture area of counterdie 1 die cavity, and patrix 3 can move up and down in the die cavity of counterdie.Patrix 3 is connected with piston 7 through connecting rod 14.Exhaust apparatus also comprises the gasbag that aluminum plastic film is processed, and said gasbag is provided with flexible pipe, and flexible pipe and switch valve are through being threaded.
Like Fig. 1, shown in Figure 3, patrix 3 edges are provided with upwardly extending step 21, and the edge of step is provided with the grab 22 that stretches out downwards.This step 21 is used to limit patrix and in the die cavity of counterdie, moves down distance.The height of said step 21 is less than 1/5th of cell height.Be provided with draw-in groove 23 with respect to grab on counterdie 1 lateral surface.Said grab 22 lower horizontal be provided with the clamping face 24 that is used to cooperate clamping, said draw-in groove 23 upper levels be provided with the supporting surface 25 that is used to cooperate clamping.Said clamping face 24 is positioned at the below of patrix lower surface, and clamping face 24 is identical with the spacing between supporting surface 25 and the counterdie upper surface with spacing between the patrix lower surface.
As shown in Figure 2, said exhaust tubing string 4 is a metal tube.Exhaust tubing string 4 is located between anode ear 19 and the negative electrode lug 20.Exhaust tubing string lateral surface is provided with first layer of heat-fusible material 15, and the exhaust tubing string is connected as a single entity through the aluminum plastic film of heat-sealing with packaged battery.Exhaust tubing string 4 middle part lateral surfaces are provided with the ring-shaped depression 16 that caves inward of circle, and the exhaust tubing string medial surface that is positioned at ring-shaped depression 16 tops is provided with second layer of heat-fusible material 17, and the fusing point of said second layer of heat-fusible material is higher than first layer of heat-fusible material.Be positioned at lateral surface, lower surface and the corrosion-resistant plastic layer 18 that the exhaust tubing string medial surface that is positioned at the ring-shaped depression bottom is provided with the electrolyte resistance corrosion of the exhaust tubing string of inside battery.Be specifically, the lower surface of exhaust tubing string 4 flushes with battery 2 inner end faces, and the lower surface of exhaust tubing string is provided with the corrosion-resistant plastic layer 18 that electrolyte resistance corrodes with the exhaust tubing string medial surface that is positioned at ring-shaped depression 16 bottoms.
Concrete operation method is following:
First: the battery 2 after fluid injection finished is placed in the die cavity of counterdie 1, and opens switch valve 9 internal cavities of cylinder body 6 is communicated with the gasbag that aluminum plastic film is processed.
The second, through hydraulic cylinder 8 piston 7 is moved down, when the lower surface of patrix 3 flushed with the upper surface of counterdie, when just the lower surface of patrix contacted with the upper surface of battery, piston 7 stops to move maintained under this state upper die and lower die; The grab 22 of patrix can snap in the draw-in groove 23 of counterdie simultaneously; Then exhaust tubing string 4 and catheter 10 are tightly connected through articulation 26, as shown in Figure 1.
The 3rd, begin to change into, owing to receive the restriction of upper die and lower die, flexible packing lithium ion battery can not produce expansion in formation process, and the gas that produces in the formation process will be discharged by the exhaust tubing string.
The 4th, after changing into completion, off switch valve 9 makes battery 2 internal cavities be connected to the space of a sealing through exhaust tubing string 4 and the catheter 10 and the internal cavities of cylinder body 6, and is as shown in Figure 1.
The 5th, make piston 7 continue to move down through hydraulic cylinder 8, and drive the step 21 that patrix 3 moves down until the patrix edge contact in the die cavity of counterdie 1 with the upper surface of counterdie, piston 7 stops to move, and is as shown in Figure 4.And in the process that patrix 3 moves down, can push battery 2, make flexible packing lithium ion battery generation deformation; Simultaneously in the process that piston 7 moves down,, make the internal cavities of cylinder body can form negative pressure because battery 2 internal cavities are connected to the space of a sealing through exhaust tubing string 4 and the catheter 10 and the internal cavities of cylinder body 6; Negative pressure through outside extruding force of 3 pairs of batteries of patrix 2 and cylinder body 6 internal cavities makes flexible packing lithium ion battery 2 inner pole piece and the electrolyte in the gap between the pole piece enter in the fluid reservoir 13 through exhaust tubing string 4 and catheter 10 to the suction that battery 2 internal cavities form.Minute bubbles electrolyte is entered into the process electrolyte of fluid reservoir by inside battery in can be destroyed in the electrolyte flow process, and from electrolyte, discharge.
The 6th; Control hydraulic cylinder 8 moves up piston 7 and drives patrix 3 and moves in the die cavity of counterdie 1; When the lower surface of patrix 3 flushes with the upper surface of counterdie; Because the grab 22 of patrix has snapped in the draw-in groove 23 of counterdie in the process that piston 7 moves down, the clamping face 24 of the grab 22 of patrix contacts with the supporting surface 25 of the draw-in groove of counterdie counterdie and patrix is connected as one; After this, piston 7 drives in the process that patrixes 3 move up, and the battery that patrix can drive in counterdie and the counterdie moves on together, and is as shown in Figure 5.Air pressure in the process of on piston, moving in the cylinder body 6 can increase the electrolyte back pressure in the fluid reservoir 13 to battery 2 inside gradually, and to inside battery, piston 7 stops to move until the complete back pressure of electrolyte.
The 7th, exhaust tubing string 4 is sealed, second layer of heat-fusible material 17 that is provided with on the exhaust tubing string medial surface is dissolved, and in the through hole of exhaust tubing string, form and seal; Battery is taken out in die sinking then.
Claims (7)
1. the exhaust apparatus of a flexible packing lithium ion battery is characterized in that, comprises counterdie, patrix and is arranged on the exhaust tubing string that is communicated with inside battery on the battery, and said exhaust tubing string is located between the positive and negative lug; Exhaust tubing string lateral surface is provided with first layer of heat-fusible material.
2. the exhaust apparatus of a kind of flexible packing lithium ion battery according to claim 1; It is characterized in that; Said exhaust tubing string is a metal tube; Exhaust tubing string middle part lateral surface is provided with the ring-shaped depression that a circle caves inward, and the exhaust tubing string medial surface that is positioned at ring-shaped depression top is provided with second layer of heat-fusible material, and the fusing point of said second layer of heat-fusible material is higher than first layer of heat-fusible material.
3. the exhaust apparatus of a kind of flexible packing lithium ion battery according to claim 1 is characterized in that, said exhaust apparatus also comprises: bracing frame, vertically be arranged on the cylinder body on bracing frame top; Said cylinder body inside is provided with piston, and the cylinder body top is provided with switch valve and vertical hydraulic cylinder or pneumatic cylinder; The cylinder body and the cylinder body of said hydraulic cylinder or pneumatic cylinder are tightly connected, and the piston rod of hydraulic cylinder or pneumatic cylinder is connected with piston; Said piston is provided with catheter, and catheter two ends up and down lays respectively at the inside and outside both sides of cylinder body; Catheter port place is positioned at the fluid reservoir that cylinder body inside is provided with open upper end, and the catheter lower port is provided with articulation; Said cylinder body is positioned at the top of counterdie, patrix; Said counterdie is provided with the die cavity of open upper end; And the cross-sectional area of patrix is less than the aperture area of counterdie die cavity, and said patrix is connected with piston through connecting rod, and the patrix edge is provided with upwardly extending step, and the edge of step is provided with the grab that stretches out downwards; Be provided with draw-in groove with respect to grab on the said counterdie lateral surface.
4. the exhaust apparatus of a kind of flexible packing lithium ion battery according to claim 2; It is characterized in that lateral surface, the lower surface of the said exhaust tubing string that is positioned at inside battery and the exhaust tubing string medial surface that is positioned at the ring-shaped depression bottom are provided with the corrosion-resistant plastic layer of electrolyte resistance corrosion.
5. the exhaust apparatus of a kind of flexible packing lithium ion battery according to claim 3; It is characterized in that; Said grab lower horizontal be provided with the clamping face that is used to cooperate clamping; Said draw-in groove upper level be provided with the supporting surface that is used to cooperate clamping, said clamping face is positioned at the below of patrix lower surface, and clamping face is identical with the spacing between supporting surface and the counterdie upper surface with spacing between the patrix lower surface.
6. according to the exhaust apparatus of claim 3 or 5 described a kind of flexible packing lithium ion batteries, it is characterized in that said fluid reservoir is funnel-form.
7. according to the exhaust apparatus of claim 3 or 5 described a kind of flexible packing lithium ion batteries, it is characterized in that said exhaust apparatus also comprises the gasbag that aluminum plastic film is processed, said gasbag is provided with flexible pipe, and flexible pipe and switch valve external port are tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205379317U CN202373666U (en) | 2011-12-21 | 2011-12-21 | Exhaust device for flexibly packaged lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205379317U CN202373666U (en) | 2011-12-21 | 2011-12-21 | Exhaust device for flexibly packaged lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202373666U true CN202373666U (en) | 2012-08-08 |
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ID=46597360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205379317U Withdrawn - After Issue CN202373666U (en) | 2011-12-21 | 2011-12-21 | Exhaust device for flexibly packaged lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202373666U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456861A (en) * | 2011-12-21 | 2012-05-16 | 万向电动汽车有限公司 | Exhaust device for flexibly-packaged lithium ion battery |
| CN114430071A (en) * | 2022-01-28 | 2022-05-03 | 佛山市天劲新能源科技有限公司 | Lithium ion battery formation device and process capable of exhausting and replenishing liquid |
-
2011
- 2011-12-21 CN CN2011205379317U patent/CN202373666U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456861A (en) * | 2011-12-21 | 2012-05-16 | 万向电动汽车有限公司 | Exhaust device for flexibly-packaged lithium ion battery |
| CN102456861B (en) * | 2011-12-21 | 2013-12-11 | 万向电动汽车有限公司 | Exhaust device for flexibly-packaged lithium ion battery |
| CN114430071A (en) * | 2022-01-28 | 2022-05-03 | 佛山市天劲新能源科技有限公司 | Lithium ion battery formation device and process capable of exhausting and replenishing liquid |
| CN114430071B (en) * | 2022-01-28 | 2022-10-21 | 佛山市天劲新能源科技有限公司 | Lithium ion battery formation device and process capable of exhausting and replenishing liquid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120808 Effective date of abandoning: 20131211 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120808 Effective date of abandoning: 20131211 |
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| RGAV | Abandon patent right to avoid regrant |