CN203519797U - Detection device for corrosion and gas bulking of flexible packaged lithium ion battery - Google Patents
Detection device for corrosion and gas bulking of flexible packaged lithium ion battery Download PDFInfo
- Publication number
- CN203519797U CN203519797U CN201320530097.8U CN201320530097U CN203519797U CN 203519797 U CN203519797 U CN 203519797U CN 201320530097 U CN201320530097 U CN 201320530097U CN 203519797 U CN203519797 U CN 203519797U
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- probe
- bayonet
- mounting groove
- corrosion
- lithium ion
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Abstract
Provided is a detection device for corrosion and gas bulking of a flexible packaged lithium ion battery. The device is special by comprising a control cabinet, a short circuit tester, and a test cylinder. The control cabinet is disposed on an operating table. A side of the control cabinet is fixed with the test cylinder. A piston rod end of the test cylinder is connected with an insulation test base. The insulation test base is provided with a steel bayonet and a steel probe. The bayonet and the probe are electrically connected with the short circuit tester. In detection, the detection cylinder drives the bayonet and the probe to move, so that the bayonet and the probe are respectively connected with an aluminum layer and a negative pole lug of a battery, and a DC resistance value between the aluminum layer and the negative pole lug is measured. Edge resistors are measured through the short circuit tester, and the resistors whose resistance is lower than a set resistance are selected, thereby reducing rate of corrosion and gas bulking of shipped batteries. Using the device is simple and convenient in operation, and the device can satisfy requirements of production, and can effectively control proportion of corrosion and gas bulking before the batteries are shipped, thereby reducing possibility of corrosion and gas bulking in use process, and improving security of battery use.
Description
Technical field
The utility model relates to a kind of battery detecting technology, particularly a kind of flexible packing lithium ion battery corrosion flatulence hidden danger pick-up unit.
Background technology
The demand of flexible packing lithium ion battery constantly rose in the last few years, and it has been widely applied to notebook computer, smart mobile phone, digital camera, video camera, electric bicycle, electric automobile and military and national defense field.With respect to cylindrical lithium ion battery, aluminum plastic film corrosion is one of serious bad product of flexible packing lithium ion battery, and its main manifestations is packing aluminium lamination blackout, junk, and then battery flatulence causes normally using.The electrolytic solution flowing out from breakage also can damage equipment, has larger potential safety hazard.Because corrosion is to embody by chemical reaction slowly, after anode ring forming, can obviously see that flatulence is generally at 2-3 month, now battery is substantially in customers' place.Cause that lithium ion flexible package corrosion must possess following two conditions: one, the opening of ion channel, i.e. aluminium lamination in aluminum plastic film and the short circuit of anode generation ion; Two, electrical short passage, i.e. aluminium lamination in aluminum plastic film and anode generation electrical short.Like this aluminium lamination in packaging aluminium plastic film just with short-circuit loop of anodic formation, anode in battery in low potential part, by electrolytic solution and conducting medium and aluminium, react, generate LiAl alloy, cause aluminium lamination to be gradually corroded, the moisture in environment enters inside battery by breakage and reacts with electrolytic solution and cause battery flatulence.
The generation that prevents corrosion just need to be controlled the formation of short-circuit loop; the structure of aluminum plastic film is comprised of PP layer, aluminium lamination and nylon layer from the inside to the outside; PP layer is internal insulating layer; by electrolytic solution and aluminium lamination isolation; protection aluminium lamination; ion channel is directly to contact with aluminium lamination because the breakage of PP layer causes electrolytic solution, when have that electrical short exists condition under will inevitably corrode flatulence.Due to PP layer, whether breakage cannot directly be found out, therefore the existing method that prevents that corrosion from occurring is to set about from stopping electrical short.Adopt at present various modes to reduce the breakage of PP layer, as encapsulated the control in Wei Feng district, the control of seal thickness, rushing the control of shell speed, but can not get all the time effective control.Have patented technology to use conducting resinl to be connected the generation that can prevent corrosion by anodal with aluminium lamination, but battery can produce inner micro-short circuit when two envelopes cause the damaged negative pole of PP layer and aluminium lamination short circuit, causes battery normally to use.
Utility model content
The purpose of this utility model is the drawback for prior art, and a kind of flexible packing lithium ion battery corrosion flatulence hidden danger pick-up unit is provided, and adopts this device can before battery delivery, effectively control corrosion flatulence ratio, promotes the security that battery is used.
Problem described in the utility model realizes with following technical proposals:
A kind of flexible packing lithium ion battery corrosion flatulence hidden danger pick-up unit, special feature is, it comprises control box, short circuit tester and tested cylinder, control box is arranged on operator's console, control box sidepiece fixing test cylinder, the piston rod end of tested cylinder connects Insulation test seat, and Insulation test seat is provided with the bayonet of steel and copper probe, and bayonet and probe are electrically connected to short circuit tester.
Above-mentioned flexible packing lithium ion battery corrosion flatulence hidden danger pick-up unit, described Insulation test seat is provided with two pickup grooves, Insulation test seat top is provided with thorn knife rest and the probe carriage of configured in parallel, on thorn knife rest and probe carriage, be respectively equipped with bayonet mounting groove and probe mounting groove, the flute length direction of bayonet mounting groove and probe mounting groove and the flute length direction of pickup groove are perpendicular, bolt is through pickup groove and bayonet mounting groove and probe mounting groove will sting knife rest and probe carriage is fixed, and described bayonet and probe are separately fixed in bayonet mounting groove and probe mounting groove.
Above-mentioned flexible packing lithium ion battery corrosion flatulence hidden danger pick-up unit, described device is also provided with source of the gas, and source of the gas is connected with tested cylinder by the road, and pipeline is provided with air pressure valve.
The utility model has designed a kind of pick-up unit for solving flexible packing lithium ion battery corrosion flatulence early detection problem.Described device drives bayonet and probe to move by detecting cylinder, bayonet is connected with battery cathode ear with the aluminium lamination of flexible packaging respectively with probe, measure DC resistance between the two, by short circuit tester, measure limit resistance, by resistance lower than selecting of resistance is set, thereby reduce shipment battery corrosion flatulence rate.Adopt this device simple to operation, can meet the demand of production, can before battery delivery, effectively control corrosion flatulence ratio, thereby reduce the possibility of corroding flatulence in use procedure, promoted the security that battery is used.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view.
In figure, each list of reference numerals is: 1, short circuit tester, 2, control box, 3, tested cylinder, 4, pipeline, 5, air pressure valve, 6, source of the gas, 7, Insulation test seat, 7-1, pickup groove, 8, probe, 9, bayonet, 10, operator's console, 11, bayonet erecting frame, 11-1, bayonet mounting groove, 12, probe mounting frame, 12-1, probe mounting groove, 13, bolt.
Embodiment
Referring to Fig. 1, the utility model comprises control box 2, short circuit tester 1 and tested cylinder 3, and control box is arranged on operator's console 10, is provided with the original papers such as gauge tap, solenoid valve, timer in control box.Control box sidepiece fixing test cylinder 3, the piston rod end of tested cylinder connects Insulation test seat 7, and Insulation test seat is provided with the bayonet 9 of steel and copper probe 8, and bayonet is connected with short circuit tester through wire respectively with probe.Described device is also provided with the source of the gas 6 of 0.5-0.7Mpa pressure, and source of the gas 4 is connected with tested cylinder 3 by the road, and pipeline is provided with the air pressure valve 5 for adjustable pressure size.
Referring to Fig. 1, Fig. 2, described Insulation test seat 7 is provided with two pickup groove 7-1, on Insulation test seat top, be provided with thorn knife rest 11 and the probe carriage 12 of configured in parallel, on thorn knife rest and probe carriage, be respectively equipped with bayonet mounting groove 11-1 and probe mounting groove 12-1, the flute length direction of bayonet mounting groove and probe mounting groove and the flute length direction of pickup groove are perpendicular, bolt 13 is through pickup groove and bayonet mounting groove and probe mounting groove will sting knife rest and probe carriage is fixed, and described bayonet and probe are separately fixed in bayonet mounting groove and probe mounting groove.Said structure can be adjusted bayonet and probe position all around by unclamping bolt, makes it to be convenient to test operation.
When the utility model is used, tested flexible packing lithium ion battery is placed on operator's console 10, adjust the position of bayonet 9 and probe 8, the air pressure of adjustable pressure valve 5, start tested cylinder 3, tested cylinder piston rod drives Insulation test seat 7 to move down, make bayonet 9 pierce through battery nylon layer and aluminium lamination close contact, probe 8 contacts with battery cathode ear simultaneously, two contacts join by wire and short circuit tester 1, by short circuit tester, measure limit resistance, by resistance lower than selecting of resistance is set, thereby reduce shipment battery corrosion flatulence rate, improve battery security.
Claims (3)
1. a flexible packing lithium ion battery corrodes flatulence hidden danger pick-up unit, it is characterized in that, it comprises control box (2), short circuit tester (1) and tested cylinder (3), control box is arranged on operator's console (10), control box sidepiece fixing test cylinder, the piston rod end of tested cylinder connects Insulation test seat (7), and Insulation test seat is provided with the bayonet (9) of steel and copper probe (8), and bayonet and probe are electrically connected to short circuit tester.
2. flexible packing lithium ion battery according to claim 1 corrodes flatulence hidden danger pick-up unit, it is characterized in that, described Insulation test seat (7) is provided with two pickup grooves (7-1), Insulation test seat top is provided with thorn knife rest (11) and the probe carriage (12) of configured in parallel, on thorn knife rest and probe carriage, be respectively equipped with bayonet mounting groove (11-1) and probe mounting groove (12-1), the flute length direction of bayonet mounting groove and probe mounting groove and the flute length direction of pickup groove are perpendicular, bolt (13) is through pickup groove and bayonet mounting groove and probe mounting groove will sting knife rest and probe carriage is fixed, described bayonet and probe are separately fixed in bayonet mounting groove and probe mounting groove.
3. flexible packing lithium ion battery corrosion flatulence hidden danger pick-up unit according to claim 2, is characterized in that, described device is also provided with source of the gas (6), and source of the gas by the road (4) is connected with tested cylinder, and pipeline is provided with air pressure valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320530097.8U CN203519797U (en) | 2013-08-28 | 2013-08-28 | Detection device for corrosion and gas bulking of flexible packaged lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320530097.8U CN203519797U (en) | 2013-08-28 | 2013-08-28 | Detection device for corrosion and gas bulking of flexible packaged lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203519797U true CN203519797U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320530097.8U Expired - Fee Related CN203519797U (en) | 2013-08-28 | 2013-08-28 | Detection device for corrosion and gas bulking of flexible packaged lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203519797U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526497A (en) * | 2016-12-23 | 2017-03-22 | 武汉昊诚能源科技有限公司 | Device and method for rapidly detecting corrosion danger-hidden points in lithium manganese flexible package battery |
| CN110609162A (en) * | 2019-09-30 | 2019-12-24 | 龙能科技(宁夏)有限责任公司 | Battery resistance measuring device and method |
-
2013
- 2013-08-28 CN CN201320530097.8U patent/CN203519797U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526497A (en) * | 2016-12-23 | 2017-03-22 | 武汉昊诚能源科技有限公司 | Device and method for rapidly detecting corrosion danger-hidden points in lithium manganese flexible package battery |
| CN110609162A (en) * | 2019-09-30 | 2019-12-24 | 龙能科技(宁夏)有限责任公司 | Battery resistance measuring device and method |
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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: 20140402 Termination date: 20210828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |