CN109186846A - Multi-purpose battery produces gas in situ detection analytical equipment - Google Patents
Multi-purpose battery produces gas in situ detection analytical equipment Download PDFInfo
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- CN109186846A CN109186846A CN201811103271.4A CN201811103271A CN109186846A CN 109186846 A CN109186846 A CN 109186846A CN 201811103271 A CN201811103271 A CN 201811103271A CN 109186846 A CN109186846 A CN 109186846A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
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Abstract
The present invention is that a kind of multi-purpose battery produces gas in situ detection analytical equipment, is mainly made of bracket, lower cylinder body, middle cylinder circle, top cover, spring, insulated liner set, conductive spacer, thumbscrew etc., reconnection has syringe, digital display pressure sensor etc..The detection and analysis of the device compatible button cell and cylindrical battery, when the battery charging and discharging test being placed in agent set, gas pressure in agent set can be changed by digital display pressure sensor real-time display, sensor indicating value the variation of corresponding battery producing gas amount and accordingly can indirect assessment battery material stability or safety.Battery in agent set through shelving or charge and discharge cycles for a period of time after, in-situ study can will be carried out in the gas transport to gas chromatograph-mass spectrometer (GC-MS) in agent set by way of online or non-online gas phase sample introduction, and gas production number and produce the constituent of gas and depend on used in battery material, the stability or safety of battery material used can be assessed accordingly.
Description
Technical field
The present invention relates to battery detecting analysis technical fields more particularly to a kind of multi-purpose battery to produce the analysis of gas in situ detection
Device.
Background technique
It is important total that the signature of " Paris agreement " indicates that countries in the world have been reached in reduction carbon emission, Global Environmental Governance
Know, the large-scale promotion of lithium ion power battery used for electromobile is then the important embodiment of above-mentioned agreement spirit in recent years, and has
There is the high nickel power battery of higher energy density to become the key that electric car cruising ability is promoted.Lithium-ion-power cell uses
High-nickel material, including LiNi1-y-zCoyMnzO2、LiNi1-y-zCoyAlzO2Equal materials (1-y-z > 0.5), high and low pressure and/
Or side reaction and recurring structure unstability easily occurs with electrolyte under the conditions of high power charging-discharging, and may be along with oxygen, dioxy
Change the generation of carbon, low molecular weight olefins and other gaseous by-products.Further, since lithium metal have high theoretical specific capacity (~
3860 mAh/g) and low electrode potential (- 3.04 V vs. SHE), it has also become next-generation high specific energy secondary cell (such as lithium sulphur
Battery) preferred negative electrode material.Lithium metal has strong reducing property, is easy to electrolyte and side reaction occurs, generate carbon dioxide, hydrogen
The gaseous by-products such as gas, low molecular weight olefins.What electric pool gas generated will lead to battery performance decaying, and generate
Imflammable gas increases the security risk of battery.
Current battery producing gas analytical equipment mainly pass through u-tube structure [number of patent application 201210310265.2],
Simple pressure sensor [number of patent application 201610728196.5] or Archimedes's discharging liquid method [number of patent application
201810081338.2], the variation of battery gas production in cyclic process is monitored.These devices are only in limited range
The amount for generating gas in cell reaction is assessed by monitoring the pressure of gas, assesses the safety or steady of battery system indirectly
It is qualitative, and can not accomplish to the precisely analysis such as the real-time direct detection of battery producing gas situation and subsequent gas ingredients.
In addition, the utility model patent that number of patent application is 201420366797.2 also discloses that a kind of lithium ion battery produces
Gas test device, but the electrolytic cell that uses of the device and true single battery case gap are big, cannot simulate true monomer
The result reliability of cell operating conditions, detection is not high.The utility model patent that number of patent application is 201220236884.7
A kind of gas generated in lithium ion battery detection device is disclosed, but the device does not specify the structure of battery clamp, because of battery folders
The construction of tool is the determinant that cylindrical battery produces gas detection accuracy.
People are often difficult to collect in situ in charge-discharge test, detect, analyze battery producing gas process and the production of corresponding gas
Object, to make the electrode material, the electrolyte that carry out for nickelic power lithium-ion battery and metal secondary batteries production gas problem
Exploitation and modified work become difficult.Therefore, exploitation is in situ collects, transmits battery producing gas and analyze the device for producing gas situation, right
Battery security assessment, the modified work of battery seem especially urgent.
Summary of the invention
The purpose of the present invention is producing the deficiency of gas collection, transmission and analytical equipment for current battery, propose that one kind can
To battery in the device stood, the production gas situation of battery is tested and analyzed in charge and discharge process, specifically a kind of Multipurpose electric
Pond produces gas in situ detection analytical equipment.The compatible cylindrical battery of apparatus of the present invention and button cell, delicate structure, are expected to be nickelic
Lithium ion batteries such as power battery, lithium-sulfur cell and other metals are secondary or the safety evaluation of primary battery and changing for battery material
Sex work provides powerful tool.
For cylindrical battery, the present invention is achieved through the following technical solutions:
A kind of multi-purpose battery production gas in situ detection analytical equipment, including bracket, the screw top of bracket is connected with can be upper and lower
Mobile thumbscrew, the bottom terminal ends of thumbscrew, which are closely fitted into, abrasion-proof insulating ball；The lower slide of bracket is installed with down
Cylinder body is mounted with middle cylinder circle at the top cylinder mouth of lower cylinder body and is provided with lower gasket between, the top circle mouth of middle cylinder circle
Place is mounted with top cover and is provided with upper gasket between, and thumbscrew is set by the abrasion-proof insulating top dome of its bottom in top cover
Top center at；Opened up on the lateral wall of top cover there are three connecting hole, the bottom hole of each connecting hole offer in top cover
The deep hole that portion space communicates a, wherein connecting hole is connected with syringe by stopcock, a connecting hole passes through screw thread adapter
It is connected with digital display pressure sensor, the last one connecting hole is only connected with stopcock；Center in top cover is connected with spring；Top
The crocodile clip interface connecting with battery test system is separately provided on the lateral wall of lid, middle cylinder circle and lower cylinder body.
When being used to analyze cylindrical battery, centre be via design lower gasket be placed in lower cylinder body and middle cylinder circle it
Between, play the role of insulation and sealing；Cylindrical battery is placed in lower cylinder body and passes through lower gasket and middle cylinder circle, cylindrical type electricity
The positive terminal in pond resists the intracavity bottom in lower cylinder body, the negative pole end aperture of cylindrical battery, and aperture is 1-2 mm, cylindrical type electricity
The negative pole end in pond is placed upward and resists the spring on top cover.It, can be by screwing thumbscrew after cylindrical battery places
To enhance the pressure of compressed spring, to compress cylindrical battery, battery is compressed without additional hydraulic press.Top cover and lower cylinder
Crocodile clip interface on body connects battery test system, to carry out battery charging and discharging test.
For button cell, the present invention is achieved through the following technical solutions:
A kind of multi-purpose battery production gas in situ detection analytical equipment, including bracket, the screw top of bracket is connected with can be upper and lower
Mobile thumbscrew, the bottom terminal ends of thumbscrew, which are closely fitted into, abrasion-proof insulating ball；The lower slide of bracket is installed with down
Cylinder body is mounted with middle cylinder circle at the top cylinder mouth of lower cylinder body and is provided with lower gasket between, the top circle mouth of middle cylinder circle
Place is mounted with top cover and is provided with upper gasket between, and thumbscrew is set by the abrasion-proof insulating top dome of its bottom in top cover
Top center at；Opened up on the side wall of top cover there are three connecting hole, the bottom hole of each connecting hole offer with inside top cover
The deep hole that space communicates a, wherein connecting hole is connected with syringe, a connecting hole by stopcock and is connected by screw thread adapter
It is connected to digital display pressure sensor, the last one connecting hole is only connected with stopcock；Center in top cover is connected with spring；Top
The crocodile clip interface connecting with battery test system is separately provided on the lateral wall of lid, middle cylinder circle and lower cylinder body；In
Insulated liner set is installed, the bottom in insulated liner set is mounted with conductive spacer in the duct of cylinder circle.
When being used to analyze button cell, the intermediate lower gasket without through-hole is placed between lower cylinder body and middle cylinder circle, is played
The effect of insulation and sealing；Conductive spacer is placed in the sets of holes of insulated liner set, and button cell is placed in insulated liner sets of holes
Conductive spacer on；The positive terminal aperture of button cell, aperture 1-2mm, the positive terminal of button cell are placed and are resisted upward
Spring on top cover, negative pole end are placed downward and resist conductive spacer.It, can be by screwing butterfly spiral shell after button cell places
Nail, to compress button cell, compresses battery without additional hydraulic press to enhance the pressure of compressed spring.Top cover and middle cylinder
Crocodile clip interface on circle connects battery test system, to carry out battery charging and discharging test.
For above-mentioned two technical solution, it is preferred that bracket includes rear support riser, and the bottom of rear support riser is equipped with the
One support foot, the top of rear support riser is extended forward front support beam, and vertical bolt hole, butterfly are offered in front support beam
Shape screw thread is connected in vertical threaded hole；The lower part two sides of rear support riser are respectively forwardly extended supporting table, two branch
The front end of support platform is extended separately down the second support foot and third support foot；The two sides of the bottom of lower cylinder body are equipped with and prop up on bracket
The card slot that support platform matches, lower cylinder body are installed in the supporting table of bracket by card slot sliding thereon.
For above-mentioned two technical solution, it is preferred that be equipped with recessed and energy and abrasion-proof insulating at the top center of top cover
The semi-circular recesses that ball matches.
For above-mentioned two technical solution, it is preferred that connecting hole for being only connected with stopcock on top cover passes through thereon
Stopcock is connected with gas chromatograph-mass spectrometer (GC-MS).
For above-mentioned two technical solution, it is preferred that the diameter of the deep hole on top cover is 1-3mm.
For above-mentioned second technical solution, it is preferred that the interior jacket wall bottom of insulated liner set is equipped with a circle and supports terrace with edge,
Conductive spacer is placed on support terrace with edge.
The test philosophy of apparatus of the present invention are as follows: when the battery being placed in apparatus of the present invention is being shelved or in harsh item
When carrying out charge-discharge test under part such as high temperature, high low pressure and/or high magnification, a certain amount of combustion-supporting or combustible gas volume can be generated
Gather in agent set, gas pressure can be by digital display pressure sensor real-time display, and (such as different tests are warm at different conditions
Degree, different multiplying, different charge and discharge potential, different circulations are shelved the time) produced by gas component can by it is online or it is non-
The mode of line gas phase sample introduction, which is sent in gas chromatograph-mass spectrometer (GC-MS), carries out original position or ex situ analysis, and gas production, production gas
Composition depend greatly on high nickel-based battery, lithium-sulfur cell electrode material, electrolyte and its method of modifying etc. it is a variety of because
Element, therefore apparatus of the present invention can be used for assessing the safety of button, cylindrical battery, and can be used for the modification work of battery material
Make, there is great practical application meaning.
The compatible button cell of the device and cylindrical battery, when the battery charging and discharging test being placed in agent set,
Gas pressure in agent set can change corresponding battery producing gas amount by digital display pressure sensor real-time display, sensor indicating value
Variation and accordingly can indirect assessment battery material stability or safety.Battery is in agent set by shelving or charge and discharge
It, can be by way of online or non-online gas phase sample introduction by the gas transport gas phase color in agent set after electricity circulation a period of time
Carry out in-situ study in spectrum mass spectrometer, and gas production number and produce the constituent of gas and depend on used in battery material,
The stability or safety of battery material used can be assessed accordingly.
Apparatus of the present invention structure is compact to design flexibly, not only external to occupy little space, light and handy portable, and internal chimeric tight
It is close, it is ensured that dead volume minimizes, conducive to accurately measuring.For function, apparatus of the present invention can be compatible with a variety of different size batteries
Use, and may be implemented in the easy switching between a variety of uses or analytical model, such as online or non-on-line analysis, air pressure list
Solely analysis, air pressure-gas component Synchronization Analysis, monocell analysis, replacement single electrode analysis.In short, the invention device is with more
Purposes feature cooperates corresponding accessory, is able to satisfy the use demand of different mode or scene.
Detailed description of the invention
Attached drawing herein is used to provide to further explanation of the invention, constitutes part of this application, of the invention shows
Meaning property embodiment and its explanation are used to explain the present invention, not constitute improper limitations of the present invention.
Fig. 1 is the planar structure schematic diagram one of apparatus of the present invention.
Fig. 2 is the A-A cross-sectional view in Fig. 1.
Fig. 3 is the planar structure schematic diagram one of apparatus of the present invention.
Fig. 4 is the B-B cross-sectional view in Fig. 3.
Fig. 5 is the schematic perspective view of apparatus of the present invention.
In figure: under 1- bracket, 2- thumbscrew, 3- abrasion-proof insulating ball, 4- lower cylinder body, 5- middle cylinder circle, 6- lower gasket, 6 '-
Gasket, 7- top cover, 8- upper gasket, 9- connecting hole, 10- deep hole, 11- syringe, 12- digital display pressure sensor, 13- gas phase color
Spectrum-mass spectrometer, 14- spring, 15- battery test system, 16- crocodile clip interface, 17- insulated liner set, 18- conductive pad
Piece, 19- cylindrical battery, 20- button cell.
Specific embodiment
Following embodiment is to be described further to the content of present invention using as the explaination to the technology of the present invention content, but this
The substantive content of invention includes and is not limited to described in following embodiment, the common or professional technician of this field can with and also answer
Protection model of the presently claimed invention should all be belonged to when understanding thoroughly any simple modification based on true spirit, changing or replace
It encloses.
Embodiment 1
A kind of multi-purpose battery production gas in situ detection analytical equipment for testing and analyzing cylindrical battery, including bracket 1, bracket
1 includes rear support riser, and the bottom of rear support riser is equipped with the first support foot, and the top of rear support riser is extended forward preceding branch
Crossbeam to be supportted, offers vertical bolt hole in front support beam, the lower part two sides of rear support riser are respectively forwardly extended supporting table,
The front end of two supporting tables is extended separately down the second support foot and third support foot；The two sides of the bottom of lower cylinder body 4 be equipped with
The card slot that supporting table matches on bracket 1, lower cylinder body 4 are installed in the supporting table of bracket 1 by card slot sliding thereon；Bracket
The having literary or intellectual fame bolt hole internal screw thread of 1 front support beam is connected with the thumbscrew 2 that can be moved up and down, the bottom end of thumbscrew 2
End, which is closely fitted into, abrasion-proof insulating ball 3；The lower slide of bracket 1 is installed with lower cylinder body 4, it may be assumed that in two supporting tables of bracket 1
Sliding is installed with lower cylinder body 4, and the two sides of the bottom of lower cylinder body 4 are equipped with the card slot matched with two supporting tables, and lower cylinder body 4 passes through it
On card slot sliding be installed in two supporting tables of bracket 1；Lower cylinder body 4 is internally provided with the chamber for inserting cylindrical battery
Body is mounted with middle cylinder circle 5 at the top cylinder mouth of lower cylinder body 4 and is provided with lower gasket 6 between, the top circle of middle cylinder circle 5
Top cover 7 is mounted at mouthful and is provided with upper gasket 8 between, and thumbscrew 2 passes through 3 overhead of abrasion-proof insulating ball of its bottom
At the top center of top cover 7；Semicircle that is recessed and can matching with abrasion-proof insulating ball 3 is equipped at the top center of top cover 7
Connected in star opens up on the lateral wall of top cover 7 there are three connecting hole 9, the bottom hole of each connecting hole 9 offer with inside top cover 7
The diameter that space communicates is the deep hole 10 of 1-3mm, wherein a connecting hole 9 is connected with syringe 11, one connections by stopcock
Hole 9 is connected with digital display pressure sensor 12 by screw thread adapter, the last one connecting hole is only connected with stopcock, specific implementation
When, which also can connect gas chromatograph-mass spectrometer (GC-MS) 13；Center in top cover 7 is connected with spring 14；Top cover 7,
The crocodile clip interface 16 connecting with battery test system 15 is separately provided on the lateral wall of middle cylinder circle 5 and lower cylinder body 4.
Device carries out test analysis to cylindrical battery through the invention, and specific method is as follows: apparatus of the present invention structure
As shown in Figures 1 to 4, the structure that agent set is connected with user equipment is as shown in figure 5, first by aperture cylindrical type electricity to be measured
Pond should be poured in electrolyte in glove box (water, oxygen content are respectively less than 0.1ppm), and intermediate porose lower gasket 6 is placed in lower cylinder body
Between 4 and middle cylinder circle 5, insulation and sealing function are played；Cylindrical battery passes through lower gasket 6 and is placed in the interior intracavitary of lower cylinder body 4, and
And positive terminal resists the bottom of cavity；Cylindrical battery negative pole end open pore size 1-2 mm, places upward and resists on top cover 7
Spring 14；By closing 7 side opening stopcock of top cover, abrasion-proof insulating ball 3 is directed at the hemispherical groove on top cover 7, screws butterfly spiral shell
Nail 2, so that top cover 7, upper gasket 8, middle cylinder circle 5, lower gasket 6, lower cylinder body 4 and bracket 1 fit closely, to guarantee that main body fills
The air-tightness set；In argon gas glove box, one of connecting hole of top cover 7 is connected into syringe 11, another by stopcock in advance
An outer connecting hole connects digital display pressure sensor 12 by screw thread adapter, the last one connecting hole only connects stopcock, connects
After close all stopcocks；Device is transferred out from glove box, is placed in the perseverance equipped with gas chromatograph-mass spectrometer (GC-MS) 13
In warm battery testing room, the crocodile clip interface 16 on crocodile clip interface 16 and lower cylinder body 4 on top cover 7 passes through power supply line respectively
Battery test system 15 is connected, charge-discharge test is carried out to battery under prescribed conditions；After the certain number of circulating battery, it can carry out
Non- online sample introduction is evacuated agent set by the stopcock of a connecting hole on top cover 7 with gas phase sample introduction needle, then
The stopcock on the connecting hole is closed immediately, and gas phase sample introduction needle is penetrated in the sample introduction pad of gas chromatograph-mass spectrometer (GC-MS) 13；Or
Online sample introduction can also be carried out, i.e., only the stopcock of a connecting hole on top cover 7 need to be passed through air circuit connection to gas chromatography-mass spectrum
The gas phase injection port of combined instrument 13, then by pushing syringe 11 that the gas in agent set is sent into gas chromatography-mass spectrum
In the quantitative loop of combined instrument 13, the constituent of gas produced by then can testing and analyzing.Can every certain cycle-index, into
The same operation of row is changed with monitoring battery in the production gas of charge and discharge process.Digital display pressure sensor 12 can also real-time display main body
The variation of gas pressure in device can pull syringe 11 to discharge partial pressure if pressure is excessive.Gas pressure in agent set
The variation of power and constituent can be used for evaluating the stability and safety of battery material used.Without analyzing produced gas group
When at ingredient, the agent set after connection syringe 11, digital display pressure sensor 12 and battery test system 15 can also be transported independently
Row only passes through the stability or safety of 12 indirect assessment battery system of digital display pressure sensing.
Embodiment 2
A kind of multi-purpose battery production gas in situ detection analytical equipment for testing and analyzing button cell, including bracket 1, bracket 1
Including rear support riser, the bottom of rear support riser is equipped with the first support foot, and the top of rear support riser is extended forward preceding branch
Crossbeam to be supportted, offers vertical bolt hole in front support beam, the lower part two sides of rear support riser are respectively forwardly extended supporting table,
The front end of two supporting tables is extended separately down the second support foot and third support foot；The two sides of the bottom of lower cylinder body 4 be equipped with
The card slot that supporting table matches on bracket 1, lower cylinder body 4 are installed in the supporting table of bracket 1 by card slot sliding thereon；Bracket
The having literary or intellectual fame bolt hole internal screw thread of 1 front support beam is connected with the thumbscrew 2 that can be moved up and down, the bottom end of thumbscrew 2
End, which is closely fitted into, abrasion-proof insulating ball 3；The lower slide of bracket 1 is installed with lower cylinder body 4, it may be assumed that in two supporting tables of bracket 1
Sliding is installed with lower cylinder body 4, and the two sides of the bottom of lower cylinder body 4 are equipped with the card slot matched with two supporting tables, and lower cylinder body 4 passes through it
On card slot sliding be installed in two supporting tables of bracket 1；Middle cylinder circle 5 is mounted at the top cylinder mouth of lower cylinder body 4 and two
It is provided with lower gasket 6 ' between person, the insulation for disposing the insulated liner of button cell to cover 17 is installed in the duct of middle cylinder circle 5
Bottom in the sets of holes of neck bush 17 is mounted with conductive spacer 18, specifically: jacket wall bottom is set in the sets of holes of insulated liner set 17
There is a circle to support terrace with edge, conductive spacer 18 is placed on the support terrace with edge in sets of holes；The top ring edge position of middle cylinder circle 5 is mounted with top
Lid 7 and it is provided with upper gasket 8 between, thumbscrew 2 is by 3 overhead of abrasion-proof insulating ball of its bottom on the top of top cover 7
At portion center；Semi-circular recesses that are recessed and can matching with abrasion-proof insulating ball 3, top cover 7 are equipped at the top center of top cover 7
Lateral wall on open up there are three connecting hole 9, the bottom hole of each connecting hole 9 offer communicated with 7 inner space of top cover it is straight
Diameter is the deep hole 10 of 1-3mm, wherein a connecting hole 9 is connected with 11, connecting holes 9 of syringe by stopcock and passes through screw thread
Adapter is connected with digital display pressure sensor 12, the last one connecting hole is only connected with stopcock, when it is implemented, the stopcock can also
To connect gas chromatograph-mass spectrometer (GC-MS) 13；Center in top cover 7 is connected with spring 14；Top cover 7, middle cylinder circle 5 and lower cylinder
The crocodile clip interface 16 connecting with battery test system 15 is separately provided on the lateral wall of body 4.
Device button type battery carries out test analysis through the invention, and specific method is as follows:
The structure of apparatus of the present invention as shown in Figures 1 to 4 shown in, structure that agent set is connected with user equipment as shown in figure 5,
Aperture button cell to be measured should assemble in glove box (water, oxygen content should be respectively less than 0.1ppm) first, and button cell is by just
Extremely direction upward is placed in the sets of holes of insulated liner set 17, and the negative pole end of button cell downward and resists conductive spacer
18, the positive terminal aperture diameter of button cell is the hole of 1-2mm and positive terminal resists the spring 14 on top cover 7；By closing top cover 7
Abrasion-proof insulating ball 3 is directed at the hemispherical groove on top cover 7, thumbscrew 2 is screwed, so that top cover 7, upper gasket by side opening stopcock
8, middle cylinder circle 5, lower gasket 6 ', lower cylinder body 4 and bracket 1 fit closely, to guarantee the air-tightness of agent set；By screwing
Button cell can tightly be clipped between conductive spacer 18 and spring 14 without additional hydraulic press and compress by thumbscrew 2
Battery；In argon gas glove box, a connecting hole on top cover 7 is connected into 11, connecting holes of syringe by stopcock in advance
Digital display pressure sensor 12 is connected by screw thread adapter, the last one connecting hole only connects stopcock, and connection is closed after finishing
All stopcocks；Device is transferred out from glove box, is placed in the constant-temperature battery test equipped with gas chromatograph-mass spectrometer (GC-MS) 13
Within doors, the crocodile clip interface 16 on top cover 7 connect battery testing by power supply line respectively with the crocodile clip interface 16 on middle cylinder circle 5
System 15, button type battery carries out charge-discharge test under prescribed conditions；After battery shelves the certain number of circulation, can carry out it is non-
Line sample introduction is evacuated agent set by the stopcock of a connecting hole on top cover 7 with gas phase sample introduction needle, immediately
The stopcock on the connecting hole is closed, gas phase sample introduction needle is penetrated in the sample introduction pad of gas chromatograph-mass spectrometer (GC-MS) 13；Or it can also
Online sample introduction is carried out, i.e., only the stopcock of a connecting hole on top cover 7 need to be passed through air circuit connection to gas chromatography-mass spectrography
The gas phase injection port of instrument 13, then by pushing syringe 11 that the gas in agent set is sent into gas chromatography-mass spectrography
In the quantitative loop of instrument 13, the constituent of gas produced by then can testing and analyzing.It can be carried out same every certain cycle-index
Sample operation, to monitor the production gas variation of battery charge and discharge process.Digital display pressure sensor 12 can gas in real-time display agent set
The variation of body pressure.The variation of gas pressure and constituent can be used for evaluating the stability of battery material used in agent set
And safety.When without analyzing produced gas composition ingredient, connection syringe 11, digital display pressure sensor 12 and battery testing
Agent set after system 15 can also independent operating, i.e., only pass through the stability of 12 indirect assessment battery system of digital display pressure sensing
Or safety.
Preferred specific embodiment is described in detail above.It should be understood that the common or professional technique people of this field
Member according to the present invention can conceive without creative work to make many modifications and changes.Therefore, in all this fields
Technical staff's design according to the invention is on the basis of existing by imitating shape, logical analysis, reasoning, or a limited experiment
Available apparatus structure or technical solution, all should be within the scope of protection determined by the claims.
Claims (7)
1. a kind of multi-purpose battery produces gas in situ detection analytical equipment, it is characterised in that: including bracket (1), the top of bracket (1)
It is threaded with the thumbscrew (2) that can be moved up and down, the bottom terminal ends of thumbscrew (2), which are closely fitted into, abrasion-proof insulating ball
(3)；The lower slide of bracket (1) is installed with lower cylinder body (4), be mounted at the top cylinder mouth of lower cylinder body (4) middle cylinder circle (5) and
It is provided therebetween lower gasket (6), the top ring edge position of middle cylinder circle (5) is mounted with top cover (7) and is provided between
Upper gasket (8), thumbscrew (2) is by abrasion-proof insulating ball (3) overhead of its bottom at the top center of top cover (7)；Top cover
(7) it is opened up on lateral wall there are three connecting hole (9), the bottom hole of each connecting hole (9) offers and top cover (7) inner space
The deep hole (10) communicated a, wherein connecting hole (9) is connected with syringe (11) by stopcock, a connecting hole (9) passes through spiral shell
Line adapter is connected with digital display pressure sensor (12), the last one connecting hole is only connected with stopcock；Centre bit in top cover (7)
It sets and is connected with spring (14)；It is separately provided on the lateral wall of top cover (7), middle cylinder circle (5) and lower cylinder body (4) and battery
The crocodile clip interface (16) of test macro (15) connection.
2. a kind of multi-purpose battery produces gas in situ detection analytical equipment, it is characterised in that: including bracket (1), the top of bracket (1)
It is threaded with the thumbscrew (2) that can be moved up and down, the bottom terminal ends of thumbscrew (2), which are closely fitted into, abrasion-proof insulating ball
(3)；The lower slide of bracket (1) is installed with lower cylinder body (4), be mounted at the top cylinder mouth of lower cylinder body (4) middle cylinder circle (5) and
It is provided therebetween lower gasket (6 '), the top ring edge position of middle cylinder circle (5) is mounted with top cover (7) and is provided between
Upper gasket (8), thumbscrew (2) is by abrasion-proof insulating ball (3) overhead of its bottom at the top center of top cover (7)；Top cover
(7) it is opened up on side wall there are three connecting hole (9), the bottom hole of each connecting hole (9) offers and top cover (7) inner space phase
Logical deep hole (10) a, wherein connecting hole (9) is connected with syringe (11) by stopcock, a connecting hole (9) passes through screw thread
Adapter is connected with digital display pressure sensor (12), the last one connecting hole is only connected with stopcock；Center in top cover (7)
It is connected with spring (14)；It is separately provided for surveying with battery on the lateral wall of top cover (7), middle cylinder circle (5) and lower cylinder body (4)
The crocodile clip interface (16) of test system (15) connection；Insulated liner set (17), insulated liner are installed in the duct of middle cylinder circle (5)
Bottom in set (17) is mounted with conductive spacer (18).
3. multi-purpose battery according to claim 1 or 2 produces gas in situ detection analytical equipment, it is characterised in that: bracket (1)
Including rear support riser, the bottom of rear support riser is equipped with the first support foot, and the top of rear support riser is extended forward preceding branch
Crossbeam is supportted, offers vertical bolt hole in front support beam, thumbscrew (2) is threaded in vertical threaded hole；Rear support
The lower part two sides of riser are respectively forwardly extended a supporting table, the front end of two supporting tables separately down it is extended have the second support foot and
Third support foot；The two sides of the bottom of lower cylinder body (4) are equipped with the card slot matched with supporting table on bracket (1), and lower cylinder body (4) passes through
Card slot sliding thereon is installed in the supporting table of bracket (1).
4. multi-purpose battery according to claim 1 or 2 produces gas in situ detection analytical equipment, it is characterised in that: top cover (7)
Top center at be equipped with the recessed and semi-circular recesses that can match with abrasion-proof insulating ball (3).
5. multi-purpose battery according to claim 1 or 2 produces gas in situ detection analytical equipment, it is characterised in that: top cover (7)
On be only connected with that connecting hole of stopcock gas chromatograph-mass spectrometer (GC-MS) (13) be connected with by stopcock thereon.
6. multi-purpose battery according to claim 1 or 2 produces gas in situ detection analytical equipment, it is characterised in that: top cover (7)
On deep hole (10) diameter be 1-3mm.
7. multi-purpose battery according to claim 2 produces gas in situ detection analytical equipment, it is characterised in that: insulated liner set
(17) interior jacket wall bottom is equipped with a circle and supports terrace with edge, and conductive spacer (18) is placed on support terrace with edge.
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