CN109935919A - A kind of gas collecting device for battery - Google Patents
A kind of gas collecting device for battery Download PDFInfo
- Publication number
- CN109935919A CN109935919A CN201711375679.2A CN201711375679A CN109935919A CN 109935919 A CN109935919 A CN 109935919A CN 201711375679 A CN201711375679 A CN 201711375679A CN 109935919 A CN109935919 A CN 109935919A
- Authority
- CN
- China
- Prior art keywords
- gas
- positioning mechanism
- shell
- battery
- collecting device
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 134
- 239000000565 sealant Substances 0.000 claims abstract description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 11
- 238000005553 drilling Methods 0.000 claims description 11
- 229910052744 lithium Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 82
- 238000007789 sealing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 208000032953 Device battery issue Diseases 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000007704 transition Effects 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 present invention provides a kind of gas collecting devices for battery, are related to field of batteries.The gas collecting device includes: positioning mechanism, is set to above shell and upwardly extends, and the bottom surface of positioning mechanism and the top surface of shell paste that merga pass sealant is gas-tight seal, and positioning mechanism inner hollow is simultaneously communicated with the top surface of shell completely；Fixed mechanism, is set to the top of positioning mechanism, and with positioning mechanism is gas-tight seal docks, fixed mechanism is configured to operationally move back and forth up and down along positioning mechanism；Miniature electric drill, it is set to the inside of fixed mechanism, and is configured to the reciprocating movement with fixed mechanism and moves, Miniature electric drill has the drill bit protruded into inside positioning mechanism, to bore the shell of broken battery by drill bit when Miniature electric drill is moved down, and make the gas overflowing in battery；And gas collection unit, it is connected to by pipeline with the inside of positioning mechanism, for collecting the gas overflowed.To acquire the gas overflowed in battery and be detected.
Description
Technical field
The present invention relates to field of batteries, more particularly to a kind of gas collecting device for battery.
Background technique
As science and technology continues to develop, electric automatization has been introduced into the every aspect in life, and battery provides for it
Power just seems even more important, but battery is using after a period of time, inside be easy to produce gas, gas is adopted
Collection, and analyze it, it is just particularly important with eliminating electric pool gas generation.And for passing through stainless steel or/and aluminium
The battery that alloy shell is sealed, the internal gas generated cause electric pool gas since shell hardness and strength are very high
It is difficult to acquire.If cell shapes are irregular shape, such as cylindric, arc surface has the spy of very strong resistance external force deformation
Point causes its internal gas generated that can not almost acquire；The lithium electricity especially wrapped up by stainless steel or/and aluminum alloy casing
Pond.
And lithium battery often has gas in chemical conversion and use process and generates as the most commonly used battery.Wherein
Consuming electrolyte in Battery formation technical process and forming the production gas phenomenon that stable SEI film is occurred is normal gas producing.It is abnormal to produce
Phenomena such as gas is primarily referred to as during circulating battery, and transition consumes electrolyte release gas or positive electrode oxygen release, causes electricity
Pond internal pressure is excessive and deforms, bursts encapsulating material, internal battery core contact problems etc..The gas generated to lithium battery is determined
Property and quantitative analysis, be conducive to study internal the reason of producing gas and the factor for causing battery failure.Failure point to lithium battery
Analysis, performance improvement play an important role.
Summary of the invention
It is an object of the present invention to provide a kind of gas collecting device for battery, its external sealing is broken by boring
The stainless steel or/and aluminum alloy casing of package, to acquire the gas overflowed in battery and be detected.
A further object of the present invention is to be directed to common square body lithium battery, a kind of structure simple operations are provided just
Gas collecting device in prompt battery.
Another further object of the present invention is to protect lithium battery interior knot while drilling li battery shell
Structure, so that subsequent carry out accurate detection analysis to lithium battery interior structure.
Particularly, the present invention provides a kind of gas collecting device for battery, the battery is by stainless steel or/and aluminium
The gas-tight seal package of alloy shell, comprising:
Positioning mechanism is set to above the shell and upwardly extends, the bottom surface of the positioning mechanism and the shell
Top surface pastes that merga pass sealant is gas-tight seal, and the positioning mechanism inner hollow is simultaneously communicated with the top surface of the shell completely；
Fixed mechanism, is set to the top of the positioning mechanism, and with the positioning mechanism is gas-tight seal docks, it is described solid
Determine mechanism to be configured to operationally move back and forth up and down along the positioning mechanism；
Miniature electric drill, is set to the inside of the fixed mechanism, and be configured to the reciprocating movement of the fixed mechanism and
Mobile, the Miniature electric drill has the drill bit protruded into inside the positioning mechanism, to lead to when the Miniature electric drill moves down
It crosses the drill bit and bores the shell for breaking the battery, and make the gas overflowing in the battery；And
Gas collection unit is connected to by pipeline with the inside of the positioning mechanism, for collecting the gas overflowed
Body.
Further, mutually matched gas-tight thread is respectively formed at the positioning mechanism and at the fixed mechanism,
So that the fixed mechanism with the positioning mechanism is gas-tight seal docks.
Further, the gas collection unit includes closed container, and the closed container is by conduit and the positioning
Mechanism connection, to hold the gas flowed into it；
The gas collecting device further includes vacuum evacuation device, and the vacuum evacuation device is connect with the conduit, by institute
It states and is vacuumized in closed container, the inside of the positioning mechanism and the conduit.
Further, the closed container is connected to gas chromatograph, and its connectivity part is equipped with third switch valve；
The gas collection unit further include:
Tee tube, the first end of intercommunication to third end respectively with the conduit, the vacuum evacuation device and described closed
Reservoir；And
Check valve is installed between the tee tube and the conduit, so that the gas can only flow to the closed appearance
Device；
Wherein, the connectivity part of the tee tube and the vacuum evacuation device is equipped with first switch valve, the tee tube with
The closed container connectivity part is equipped with second switch valve.
Further, the inside of the positioning mechanism is formed with the top surface phase made at the top of the positioning mechanism with the shell
The cavity of connection,
The side wall of the positioning mechanism is formed with rotary table, and the side wall of the rotary table is the conical surface, and the top surface of the rotary table is formed
There is the through-hole being connected to the cavity, the rotary table is inserted into one end of the conduit and is bonded with its side wall.
Further, the top surface of the shell is horizontally disposed plane, and the bottom surface of the positioning mechanism is plane.
Further, the shell of the battery is square body.
Further, the battery case is the cylindrical body extended along horizontal direction, and the outer casing top surface is arc surface,
The bottom surface of the positioning mechanism is arc surface.
Further, the drill bit is 0.8mm to 1.2mm to the drilling depth of the shell, and the drill bit is cone mill
Sand drill bit after the drill bit drills the plane of the shell, forms 0.5mm to the poroid portion of 1mm diameter, the poroid portion is logical
Cross colorful adhesive tape sealing.
Further, the battery is lithium battery.
Present techniques effect:
Since positioning mechanism bottom surface is bonded completely with battery case top surface, so that positioning mechanism and battery case positioning are quasi-
Really, gas-tight seal by sealant, it on the one hand can prevent outside the gas diffusion to positioning mechanism overflowed, it is fixed on the other hand to make
Position mechanism is kept fixed with battery case.Miniature electric drill for boring brokenly shell is held in electricity by positioning mechanism and fixed mechanism
The top in pond, and fixed mechanism is configured to operationally move back and forth up and down along positioning mechanism, so no matter battery case
For which kind of shape, due to its shell be kept fixed with drill bit moving direction it is constant, so that drill bit be driven to bore broken stainless steel or/and aluminium
The shell that alloy is constituted.
In addition, the gas collecting device structure of the application is simple, core component be mainly positioning mechanism, fixed mechanism and
Miniature electric drill does not detect whether to drill on shell in addition to the motor of Miniature electric drill using any senser element, but sharp
With structure in battery case, battery and drill bit in lost motion, the hardness and intensity that drill bit is experienced are entirely different, and this
Hardness and intensity difference by operate fixed mechanism can be collected the feel of personnel by, then judge drill bit whether with shell
Contact, and whether break outer shell auger.It can both guarantee to bore brokenly battery case in this way, come substantially further through the simple mode of structure
Degree reduces cost, to kill two birds with one stone.
Further, since the bottom surface of positioning mechanism is plane, all outer surfaces of square casing are plane, therefore fixed
Position mechanism can be contacted with any one position of any one plane of battery case.In this way, when some for observing shell
Plane be in outer gibbosity, and need to the plane carry out drilling when, can to the position plane carry out drilling, without by any limit
System.It is very convenient to acquire gas.
Further, has the characteristics that Self-locking angle using gas-tight thread, that is to say, that only when the power of the peaceful screw thread in pavilion is greater than
Its self-lock force, screw thread can be rotated, and drill bit is pushed to move down.And in rotary course, only make fixed mechanism rigid
Well can the rotation of relative positioning mechanism, that is, its rotary force just marginally larger than or corresponding equal to the Self-locking angle of gas-tight thread pushes away
Power.Whether self-locking self-lock force is occurred as reference with gas-tight thread in this way, is fully able to the drilling of control drill bit moved down
The size of power, and when shell is soon drilled out, slow down the pavilion Ning Lidu to fixed mechanism, to not destroy inside battery knot
Structure.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the structural schematic diagram of the gas collecting device according to the present invention；
Appended drawing reference in figure are as follows:
1 Miniature electric drill, 101 drill bits, 102 motors；
2 batteries, 201 shells；
3 positioning mechanisms, 301 rotary tables, 302 cavities；
4 fixed mechanisms；
5 gas-tight threads；
6 gas collection units, 601 closed containers, 602 conduits, 603 tee tubes, 604 check valves, 605 first switch valves,
606 second switch valves, 607 third switch valves；
7 vacuum evacuation devices；
8 sealants.
Specific embodiment
Referring to Fig. 1, the gas collecting device of the application includes: positioning mechanism 3, fixed mechanism 4, Miniature electric drill 1 and gas
Body collector unit 6.Wherein, battery 2 is by stainless steel or/and the gas-tight seal package of aluminum alloy casing 201.Positioning mechanism 3 is set to
The top of shell 201 simultaneously upwardly extends, and it is airtight that merga pass sealant 8 with the top surface of shell 201 is pasted in the bottom surface of positioning mechanism 3 completely
Sealing, 3 inner hollow of positioning mechanism are simultaneously communicated with the top surface of shell 201.Fixed mechanism 4 is set to the top of positioning mechanism 3, and
With positioning mechanism 3 is gas-tight seal docks, fixed mechanism 4 is configured to operationally move back and forth up and down along positioning mechanism 3.Micro electric
It bores 1 and is set to the inside of fixed mechanism 4, and be configured to move with the reciprocating movement of fixed mechanism 4, Miniature electric drill 1, which has, to be stretched
Enter the drill bit 101 inside positioning mechanism 3, to bore the shell of broken battery 2 by drill bit 101 when Miniature electric drill 1 is moved down
201, and make the gas overflowing in battery 2.Gas collection unit 6 is connected to by pipeline with the inside of positioning mechanism 3, for receiving
Collect the gas overflowed.
The use process of the gas collecting device of the application can be, first by the bottom surface of positioning mechanism 3 and 2 shell of battery
201 top surface is bonded completely, then using sealant 8 by their gas-tight seal docking, so that positioning mechanism 3 is fixed on battery 2
201 top of shell, then operates fixed mechanism 4 by collector, moves down fixed mechanism 4, be set to admittedly to drive
The Miniature electric drill 1 for determining the inside of mechanism 4 is mobile, and when drill bit 101 starts to contact with 201 surface of shell, collector passes through behaviour
Make fixed mechanism 4 and experience the reduction of 101 movement speed of drill bit, then proceed to operation fixed mechanism 4, makes 1 lower section of Miniature electric drill
Drill bit 101 moves down and bores brokenly shell 201, and makes the gas overflowing in battery 2, then gas is made to enter gas collection unit
6, after shell 201 is drilled out, since the hardness of 2 structure of battery in shell 201 is different from the hardness of shell 201, so that drill bit
101 movement speed changes and passes through operation fixed mechanism 4 and is collected human feeling and arrives.Testing staff stops operation at this time
Fixed mechanism 4, or fixed mechanism 4 is moved up, it is detached from drill bit 101 and shell 201, gas collecting process terminates.
Since 3 bottom surface of positioning mechanism is bonded completely with 2 shell of battery, 201 top surface, so that positioning mechanism 3 and 2 shell of battery
201 accurate positionings, it is gas-tight seal by sealant 8, it on the one hand can prevent outside the gas diffusion to positioning mechanism 3 overflowed,
On the other hand it is kept fixed positioning mechanism 3 with 2 shell 201 of battery.Miniature electric drill 1 for boring brokenly shell 201 passes through positioning
Mechanism 3 and fixed mechanism 4 are held in the top of battery 2, and fixed mechanism 4 is configured to operationally along positioning mechanism 3
Lower reciprocating movement, no matter which kind of shape 2 shell 201 of battery is in this way, since its shell 201 and 101 moving direction of drill bit are kept
It immobilizes, so that drill bit 101 be driven to bore the shell 201 that broken stainless steel or/and aluminium alloy are constituted.
In addition, the gas collecting device structure of the application is simple, core component is mainly positioning mechanism 3, fixed mechanism 4
With Miniature electric drill 1, in addition to the motor 102 of Miniature electric drill 1, there is no detected whether using any senser element by shell 201
It drills, but using structure in 2 shell 201 of battery, battery 2 and drill bit 101 in lost motion, drill bit 101 is experienced hard
Degree and intensity are entirely different, and this hardness and intensity difference by operate fixed mechanism 4 can be collected the feel of personnel by
It arrives, then judges whether drill bit 101 contacts with shell 201, and whether bore shell 201 broken.It can both guarantee to bore so broken
2 shell 201 of battery, significantly reduces cost further through the simple mode of structure, to kill two birds with one stone.
Sealant 8 can be solid gum.
Referring to Fig. 1, further, battery 2 can be lithium battery 2.
Referring to Fig. 1, particularly, mutually matched gas-tight thread 5 is respectively formed at positioning mechanism 3 and at fixed mechanism 4,
So that fixed mechanism 4 with positioning mechanism 3 is gas-tight seal docks.Meanwhile by rotating 4 opposing projections of fixed mechanism, and make
Fixed mechanism 4 is configured to operationally move back and forth up and down along lug boss.About gas-tight thread 5, common knowledge is already belonged to, can be joined
Examine patent CN97106725.2.
It should be noted that, although fixed mechanism 4 can be configured to operationally move back and forth up and down along lug boss, example
The fit form of sliding slot and sliding rail is such as used, still, inventors have found that since shell 201 and structure in battery 2 are not isoplassonts
Its intensity hardness of matter is entirely different, and substance is more much lower than the hardness and strength of shell 201 usually in battery 2, when drill bit 101 bores
It wears the moment of shell 201, the resistance moment that drill bit 101 is subject to reduces, so that between the operating force of collector's hand and the resistance
Balance is broken, so that operating force moment increases, according to Newton's law, the acceleration of 101 drilling of drill bit is up to infinity, makes
It obtains drill bit 101 to do great damage to structure in battery 2, this can largely effect on subsequent to structure detection in battery 2.If using
Lesser operating force, to guarantee not destroy 2 internal structure of battery, then when drill bit 101 can not be made to bore broken shell 201, or being expended
Between it is very long.So accomplishing 2 structure of lithium battery neither destroyed in shell 201, and shell 201 can be bored brokenly, become huge difficulty
Topic.
For this purpose, inventor has the characteristics that Self-locking angle using gas-tight thread 5, that is to say, that only when the peaceful gas-tight thread 5 in pavilion
Power be greater than its self-lock force, gas-tight thread 5 can just be rotated, and drill bit 101 is pushed to move down.And in rotary course,
It rotate fixed mechanism 4 can just with relative positioning mechanism 3, that is, its rotary force is just marginally larger than or equal to gas-tight thread
The corresponding thrust of 5 Self-locking angle.Whether self-locking self-lock force is occurred as reference with gas-tight thread 5 in this way, can control brill completely
The size of first 101 drill thrust moved down, and when shell 201 is soon drilled out, slow down peaceful to the pavilion of fixed mechanism 4
Dynamics, to not destroy 2 internal structure of battery.
Referring to Fig. 1, further, gas collection unit 6 includes closed container 601, and closed container 601 is by conduit 602
It is connected to positioning mechanism 3, to hold the gas flowed into it.Gas collecting device further includes vacuum evacuation device 7, vacuum evacuation device
7 connect with conduit 602, will vacuumize in closed container 601, the inside of positioning mechanism 3 and conduit 602.
Also, positioning mechanism 3 is partially sealed to the specified region progress of 201 top surface of shell, so that sealing range is small, takes out true
Empty gas is less, can either reduce the loss of vacuum evacuation device in this way, also improve the speed vacuumized.Moreover, sealing range
It is small, relative on a large scale it is gas-tight seal, the range to leak air is smaller, therefore ensure that the airtight of entire leak-tight system
Property.
It should be noted that vacuum evacuation device 7 can be vacuum pump.
Since the gas collecting device of the application constitutes gas by closed container 601, the inside of positioning mechanism 3 and conduit 602
Close sealing system, so that the incorporation of other gases in acquisition battery 2 in gas space gas is on the one hand prevented, it is on the other hand anti-
It is only spread in air by the gas overflowed in battery 2, the collection capacity of the gas is caused to be greatly reduced.
It, first will be close using vacuum evacuation device 7 since the gas collecting device of the application can be before drill bit 101 moves down
It closes in container 601,3 inside of positioning mechanism and conduit 602 and vacuumizes, on the one hand can eliminate by closed container 601, positioning mechanism
Other gaseous impurities in gas-tight seal system that 3 inside and conduit 602 are constituted, guarantee the gas purity obtained；Another party
Face due to will vacuumize in closed container 601, the inside of positioning mechanism 3 and conduit 602, and has gas in battery 2, so that
Air pressure in shell 201 is greater than the air pressure outside shell 201, so that drill bit 101 is when boring broken shell 201, under draught head effect,
Make the entrance closed container 601 that the gas in shell 201 is as whole as possible, to collect the gas flow as much as possible.
Referring to Fig. 1, further, closed container 601 is connected to gas chromatograph (attached drawing is not shown), and its connectivity part
Third switch valve 607 is installed.Gas collection unit 6 further include: tee tube 603 and check valve 604.Tee tube 603 has
The first end of intercommunication be connected to respectively with conduit 602, vacuum evacuation device 7 and closed container 601 to third end.Check valve 604 is pacified
Loaded between tee tube 603 and conduit 602, so that gas can only flow to closed container 601.Wherein, tee tube 603 with vacuumize
The connectivity part of device 7 is equipped with first switch valve 605, and tee tube 603 and 601 connectivity part of closed container are equipped with second switch valve
606。
Before acquiring gas, the first switch valve 605 of tee tube 603 and 7 junction of vacuum evacuation device is opened, and is opened
Vacuum evacuation device 7, the gas in gas bleeding acquisition device, is then shut off first switch valve 605.Start Miniature electric drill 1, slowly
Rotate the fixed device of Miniature electric drill 1, until drill bit 101 touches 201 battery of shell, 2 surface, continue slow rotating fixing machine 4 to
201 surface fracture of shell, there is gas overflowing.2 air pressure inside of battery is greater than gas collecting device air pressure inside, and gas is from battery 2
Inside outflow, is flowed into closed container 601 by conduit 602, and check valve 604 prevents gas backstreaming, so as to completely receive
Gas inside set battery 2.In this way, being carried out to all components including closed container 601 miscellaneous before acquiring the gas
Matter vacuumize process, to be further ensured that the gas purity of acquisition.
In addition, closed container 601 is connected to gas chromatograph, in order to analyze collected gas, pass through
Switch third switch valve 607 makes gas enter gas chromatograph.
Referring to Fig. 1, further, the inside of positioning mechanism 3 is formed with the top surface for making 3 top and shell 201 of positioning mechanism
The cavity 302 being connected.The side wall of positioning mechanism 3 is formed with rotary table 301, and the side wall of rotary table 301 is the conical surface, the top of rotary table 301
Face is formed with the through-hole being connected to cavity 302, and rotary table 301 is inserted into one end of conduit 602 and is bonded with its side wall.
It should be noted that rotary table 301 refers to that the plane for being parallel to circular cone bottom surface with one goes to truncated cone, bottom surface and section
Between part be called rotary table 301, rotary table 301 also has axis, bottom surface, side and bus with cylinder as circular cone.
The characteristics of due to 301 structure of rotary table, side wall are in the conical surface, have good grafting guiding performance.And its bottom is straight
Diameter is bigger, can be formed and is interference fitted with 602 inner wall of conduit, to guarantee sealing docking, so that in the gas of assembling the application
During acquisition device, rotary table 301 need to be only inserted into one end of conduit 602, just fast implement the sealing of conduit 602 Yu lug boss
Docking.
Referring to Fig. 1, further, the top surface of shell 201 is horizontally disposed plane, and the bottom surface of positioning mechanism 3 is plane.
It is curved surface that shell 201, which can be square shell or side, and the other side is the shell of plane, side here with
The other side is oppositely arranged.It is vertically arranged drill bit 101 with plane, can prevent drill bit 101 from generating offset during drilling,
To guarantee that drill bit 101 can smoothly bore brokenly 2 shell 201 of battery.
Referring to Fig. 1, further, the shell 201 of battery 2 is square body.Since the bottom surface of positioning mechanism 3 is plane, side
The all outer surfaces of shape shell are plane, therefore positioning mechanism 3 can be with times of any one plane of 2 shell 201 of battery
It anticipates the contact of position.In this way, when some plane for observing shell 201 is in outer gibbosity, and need to carry out drilling to the plane
When, drilling can be carried out to the position plane.And it is unrestricted.It is very convenient to acquire gas.
Referring to Fig. 1, further, 2 shell 201 of battery is the cylindrical body extended along horizontal direction, and 201 top surface of shell is
Arc surface, the bottom surface of positioning mechanism 3 are arc surface.It is only necessary to 2 shell of battery, 201 surface for the gas collecting device of the application
Regional area be hermetically sealed, therefore the gas vacuumized is less, forms the speed of vacuum faster.
Referring to Fig. 1, further, drill bit 101 is 0.8mm to 1.2mm to the drilling depth of shell 201, and drill bit 101 is cone
Shape frosted drill bit 101 after drill bit 101 drills the plane of shell 201, forms 0.5mm to the poroid portion of 1mm diameter, poroid portion
It is sealed by colorful adhesive tape.Preferably, colorful adhesive tape is yellow adhesive tape.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (10)
1. a kind of gas collecting device for battery, the battery by stainless steel or/and the gas-tight seal package of aluminum alloy casing,
Include:
Positioning mechanism is set to above the shell and upwardly extends, the top surface of the bottom surface of the positioning mechanism and the shell
Patch merga pass sealant completely is gas-tight seal, and the positioning mechanism inner hollow is simultaneously communicated with the top surface of the shell；
Fixed mechanism, is set to the top of the positioning mechanism, and with the positioning mechanism is gas-tight seal docks, the fixed machine
Structure is configured to operationally move back and forth up and down along the positioning mechanism；
Miniature electric drill, is set to the inside of the fixed mechanism, and is configured to move with the reciprocating movement of the fixed mechanism,
The Miniature electric drill has the drill bit protruded into inside the positioning mechanism, described to pass through when the Miniature electric drill moves down
Drill bit bores the shell for breaking the battery, and makes the gas overflowing in the battery；And
Gas collection unit is connected to by pipeline with the inside of the positioning mechanism, for collecting the gas overflowed.
2. gas collecting device according to claim 1, which is characterized in that mutually matched gas-tight thread is respectively formed in
At the positioning mechanism and at the fixed mechanism so that the fixed mechanism with the positioning mechanism is gas-tight seal docks.
3. gas collecting device according to claim 1, which is characterized in that the gas collection unit includes closed appearance
Device, the closed container are connected to by conduit with the positioning mechanism, to hold the gas flowed into it；
The gas collecting device further includes vacuum evacuation device, and the vacuum evacuation device is connect with the conduit, will be described close
It closes in container, the inside of the positioning mechanism and the conduit and vacuumizes.
4. gas collecting device according to claim 3, which is characterized in that
The closed container is connected to gas chromatograph, and its connectivity part is equipped with third switch valve；
The gas collection unit further include:
Tee tube, the first end of intercommunication to third end respectively with the conduit, the vacuum evacuation device and the closed container
Connection；And
Check valve is installed between the tee tube and the conduit, so that the gas can only flow to the closed container；
Wherein, the connectivity part of the tee tube and the vacuum evacuation device is equipped with first switch valve, the tee tube with it is described
Closed container connectivity part is equipped with second switch valve.
5. gas collecting device according to claim 4, which is characterized in that
The inside of the positioning mechanism is formed with the cavity for making to be connected at the top of the positioning mechanism with the top surface of the shell,
The side wall of the positioning mechanism is formed with rotary table, and the side wall of the rotary table is the conical surface, the top surface of the rotary table be formed with
The through-hole of the cavity connection, the rotary table are inserted into one end of the conduit and are bonded with its side wall.
6. gas collecting device according to claim 1, which is characterized in that the top surface of the shell is horizontally disposed flat
Face, the bottom surface of the positioning mechanism are plane.
7. gas collecting device according to claim 6, which is characterized in that the shell of the battery is square body.
8. gas collecting device according to claim 1, which is characterized in that the battery case is to prolong along horizontal direction
The cylindrical body stretched, the outer casing top surface are arc surface, and the bottom surface of the positioning mechanism is arc surface.
9. gas collecting device according to any one of claim 1 to 7, which is characterized in that the drill bit is to described outer
The drilling depth of shell is 0.8mm to 1.2mm, and the drill bit is taper frosted drill bit, and the drill bit bores the plane of the shell
After wearing, 0.5mm is formed to the poroid portion of 1mm diameter, the poroid portion is sealed by colorful adhesive tape.
10. gas collecting device according to any one of claim 1 to 7, which is characterized in that the battery is lithium electricity
Pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711375679.2A CN109935919B (en) | 2017-12-19 | 2017-12-19 | Gas collecting device for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711375679.2A CN109935919B (en) | 2017-12-19 | 2017-12-19 | Gas collecting device for battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109935919A true CN109935919A (en) | 2019-06-25 |
| CN109935919B CN109935919B (en) | 2022-05-17 |
Family
ID=66983821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711375679.2A Active CN109935919B (en) | 2017-12-19 | 2017-12-19 | Gas collecting device for battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109935919B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932222A (en) * | 2017-12-19 | 2019-06-25 | 中国科学院物理研究所 | It is a kind of for acquiring the gas collecting device of electric pool gas |
| US11437658B2 (en) * | 2019-05-07 | 2022-09-06 | Lg Chem, Ltd. | Apparatus for collecting gas in secondary battery |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598641A (en) * | 2009-07-30 | 2009-12-09 | 天津力神电池股份有限公司 | A kind of collection and detection device of gas generated in lithium ion battery |
| JP2011003513A (en) * | 2009-06-22 | 2011-01-06 | Kobelco Kaken:Kk | Safety evaluation testing method and testing device for the same |
| CN201820866U (en) * | 2010-10-29 | 2011-05-04 | 中航锂电（洛阳）有限公司 | Gas collection device in lithium battery |
| CN202583139U (en) * | 2012-03-06 | 2012-12-05 | 宁德新能源科技有限公司 | Gas-collecting device for gas inside cylindrical steel shell lithium ion battery |
| CN105510174A (en) * | 2014-09-23 | 2016-04-20 | 宁德时代新能源科技股份有限公司 | Apparatus and method for detecting gas inside battery |
| KR20170019663A (en) * | 2015-08-12 | 2017-02-22 | 주식회사 엘지화학 | Apparatus and method for measuring Lithium Air Battery |
| CN106525190A (en) * | 2016-12-30 | 2017-03-22 | 山东精工电子科技有限公司 | Device for detecting gas production rate of cylindrical lithium ion battery and application method thereof |
| CN206696045U (en) * | 2017-04-13 | 2017-12-01 | 中国石油天然气股份有限公司 | A kind of simulated experiment collector |
-
2017
- 2017-12-19 CN CN201711375679.2A patent/CN109935919B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011003513A (en) * | 2009-06-22 | 2011-01-06 | Kobelco Kaken:Kk | Safety evaluation testing method and testing device for the same |
| CN101598641A (en) * | 2009-07-30 | 2009-12-09 | 天津力神电池股份有限公司 | A kind of collection and detection device of gas generated in lithium ion battery |
| CN201820866U (en) * | 2010-10-29 | 2011-05-04 | 中航锂电（洛阳）有限公司 | Gas collection device in lithium battery |
| CN202583139U (en) * | 2012-03-06 | 2012-12-05 | 宁德新能源科技有限公司 | Gas-collecting device for gas inside cylindrical steel shell lithium ion battery |
| CN105510174A (en) * | 2014-09-23 | 2016-04-20 | 宁德时代新能源科技股份有限公司 | Apparatus and method for detecting gas inside battery |
| KR20170019663A (en) * | 2015-08-12 | 2017-02-22 | 주식회사 엘지화학 | Apparatus and method for measuring Lithium Air Battery |
| CN106525190A (en) * | 2016-12-30 | 2017-03-22 | 山东精工电子科技有限公司 | Device for detecting gas production rate of cylindrical lithium ion battery and application method thereof |
| CN206696045U (en) * | 2017-04-13 | 2017-12-01 | 中国石油天然气股份有限公司 | A kind of simulated experiment collector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932222A (en) * | 2017-12-19 | 2019-06-25 | 中国科学院物理研究所 | It is a kind of for acquiring the gas collecting device of electric pool gas |
| CN109932222B (en) * | 2017-12-19 | 2022-09-27 | 中国科学院物理研究所 | Gas collecting device for collecting gas in battery |
| US11437658B2 (en) * | 2019-05-07 | 2022-09-06 | Lg Chem, Ltd. | Apparatus for collecting gas in secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109935919B (en) | 2022-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108547614B (en) | Pressure-maintaining airtight coal sample collection device and collection method | |
| CN109935919A (en) | A kind of gas collecting device for battery | |
| CN113622849A (en) | Closed core drilling tool | |
| CN206540716U (en) | Gas content fixed point sampling device | |
| CN111006968B (en) | Fixed-point testing method for coal seam gas content and closed sampling device for implementing method | |
| CN216524937U (en) | Drilling and taking integrated mining airtight sampling device | |
| CN109932222A (en) | It is a kind of for acquiring the gas collecting device of electric pool gas | |
| CN114199621A (en) | Drilling and taking integrated mining airtight sampling device and sampling method | |
| CN208142272U (en) | A kind of lithium battery electrolytes attachment means | |
| CN211784414U (en) | Gas content fixed point sampling device | |
| CN216116953U (en) | Sampling device for production detection of foaming agent | |
| CN106353130B (en) | Device and method for simulating pressure-maintaining drilling coring | |
| CN206114011U (en) | Oil gas manifold pressure temperature flow detector | |
| CN207375388U (en) | A kind of steel alloy welding gas tests system overlay film component | |
| CN215262522U (en) | Core drilling and sampling equipment for external thermal insulation wall of building | |
| CN201160108Y (en) | Auxiliary device for formatting aluminum-case battery | |
| CN103245534B (en) | Vacuum fixed-depth sampler | |
| CN210571237U (en) | Battery gas tightness testing arrangement | |
| CN211235601U (en) | Electrochemical in-situ reaction cell for X-ray and neutron three-dimensional tomography imaging | |
| CN208780409U (en) | A kind of environmental experiment cabin tightness detector | |
| CN112881101A (en) | Explosion-proof type sampling device for water quality testing for water supply pipeline | |
| CN206574817U (en) | A kind of aluminum hull lithium ion flatulence battery takes gas test device | |
| CN206684087U (en) | A kind of electrolyte detection glove box | |
| CN111855450A (en) | Device for detecting strength of impeller of tidal current energy unit and using method thereof | |
| CN205449403U (en) | Getter device suitable for heat -transfer pipe helium leak test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231226 Address after: No. 1, Zhongguancun Avenue, Kunlun Street, Liyang City, Changzhou City, Jiangsu Province, 213300 Patentee after: Yangtze River Delta Physics Research Center Co.,Ltd. Address before: 100190 South Third Street, Zhongguancun, Haidian District, Haidian District, Beijing Patentee before: INSTITUTE OF PHYSICS, CHINESE ACADEMY OF SCIENCES |
|
| TR01 | Transfer of patent right |