CN109814038A - A kind of novel lithium-air battery multipurpose test system - Google Patents
A kind of novel lithium-air battery multipurpose test system Download PDFInfo
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- CN109814038A CN109814038A CN201811654029.6A CN201811654029A CN109814038A CN 109814038 A CN109814038 A CN 109814038A CN 201811654029 A CN201811654029 A CN 201811654029A CN 109814038 A CN109814038 A CN 109814038A
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Abstract
The invention discloses a kind of novel lithium-air battery multipurpose test systems.In the multipurpose test system, seal cavity is tubular housing, and seal cavity has at least two flange-interfaces；One of flange-interface is connected by seal assembly with ventilation sealing joint, remaining flange-interface is connected by seal assembly with test interface sealing；The ontology of interface of ventilating is flange plate, is opened up on ontology there are two through-hole, and air inlet pipe and exhaust pipe protrude into seal cavity after being each passed through two through-holes, and the intake valve and exhaust valve of control are respectively provided in air inlet pipe and exhaust pipe；The ontology of test interface is flange plate, offers at least four through-holes on ontology, a binding post is installed in each through-hole；Battery to be tested is placed in inside seal cavity, and is connected by binding post with external electrochemical test system.The device favorable expandability, easy to operate, good airproof performance are suitable for the test of lithium-air battery charge-discharge performance and electrochemical in-situ test.
Description
Technical field
The invention belongs to battery test apparatus fields, are related to a kind of novel lithium-air battery multipurpose test system.
Background technique
In today's society, with the extensive utilization of fossil energy, greenhouse effects, air pollution and its is non-renewable
The problems such as caused by extensive concern.Conventional lithium ion battery is widely applied due to its advantage such as environmentally friendly, convenient
In portable electronic device and electric car.But compared with fossil energy, lower energy density limits lithium ion
Development of the battery as new energy.However, based on inexhaustible oxygen in air as positive electrode, lithium metal is made
For the lithium-air battery of negative electrode material, theoretical energy density is up to 3860Wh/kg, can almost compare favourably with gasoline.Therefore
Lithium-air battery development prospect is huge, becomes the hot spot studied at present.
Existing lithium-air battery mainly includes three parts, respectively air pole, electrolyte, cathode of lithium.Due to lithium air
Battery is an open electrochemical system, and the superoxide radical generated in discharge process can be anti-with each section in battery
It answers, therefore the electrochemical kinetics of lithium-air battery and electrode process are extremely complex.Therefore it needs through control variable
Method, to study the stability and electrochemical reaction of battery various pieces.Specifically, being made by using high purity oxygen gas instead of air
It even can include nitrogen and lithium air electricity to avoid moisture in air, carbon dioxide for the positive electrode active materials of lithium-air battery
Pond negative metal lithium and the reaction of anode reaction product lithium peroxide.Meanwhile the oxygen atmosphere of stabilized seal is kept, it is that each research is small
It can be with the necessary condition of comparison electrode material property between group.
Existing lithium-air battery test device can be generally divided into: swagelok pattern tool, organic glass test box, glass
Glass bottle test device.Above-mentioned test device generally has the disadvantages that production is cumbersome, at high cost, complicated for operation, and air-tightness
Not high, experiment operability is lower.Both simultaneously below, material mechanical strength is low, can only be passed through the oxygen of an atmospheric pressure；Expand
Malleability is poor, it is difficult to the variation of atmosphere in situ detection lithium-air battery electrochemical process.Therefore, a kind of production is simple, operates
Novel lithium-air battery convenient, that cost is relatively low, air-tightness height, high mechanical strength, good corrosion resistance, scalability are good is multi-functional
Test device is the optimal selection for studying lithium-air battery.
Summary of the invention
Present invention aims at a kind of novel lithium-air battery multipurpose test system is provided, realize a kind of air-tightness
Good, easy to operate, high mechanical strength, corrosion resistance be strong, favorable expandability multipurpose test system, being capable of extraordinary holding lithium
Pure oxygen atmosphere needed for air cell test, while atmosphere in in-situ monitoring lithium-air battery electrochemical process may be implemented and become
Change, study other gases and the multifunctional testings purposes such as influence, be applied in combination on lithium-air battery performance.
To achieve the goals above, present invention employs following technical solutions:
A kind of novel lithium-air battery multipurpose test system, including seal cavity, ventilation interface, test interface and sealing
Component；The seal cavity is tubular housing, and seal cavity has at least two flange-interfaces, remaining position in addition to flange-interface
It is closed；One of flange-interface is connected by seal assembly with ventilation sealing joint, remaining flange-interface passes through sealing group
Part connects with test interface sealing；The first noumenon of the ventilation interface is flange plate, opens up that there are two logical on the first noumenon
Hole, air inlet pipe and exhaust pipe protrude into seal cavity after being each passed through two through-holes, are respectively equipped with use on air inlet pipe and exhaust pipe
In the intake valve and exhaust valve of control gas path on-off；Second ontology of the test interface is flange plate, is opened on the second ontology
A binding post is installed with equipped at least four through-holes, in each through-hole；Battery to be tested is placed in inside seal cavity, and
It is connected by binding post with external electrochemical test system.
Further, the flange-interface using KF flange-interface, CF flange-interface, ISO-K large flange interface or
ISO-F large flange interface, preferably standard vacuum flange-interface KF40 interface.
Further, in the ventilation interface, the first noumenon is with certain thickness KF40 flange plate, and material is
Polypropylene material, stainless steel, aluminium alloy, copper alloy, titanium alloy, polyethylene, polystyrene, organic glass, nylon66 fiber or ABS tree
Rouge.
Further, in the test interface, the second ontology is with certain thickness KF40 flange plate, and material is
Polypropylene material, polyethylene, polystyrene, organic glass, nylon66 fiber, ABS resin.
Further, the binding post material is copper, copper alloy, aluminium alloy, stainless steel material, or uses multicore vacuum
Hermetically sealed connector, Aviation Connector, radio-frequency joint.
Further, the intake valve and exhaust valve use ball valve or needle-valve, the air inlet pipe and exhaust pipe and first
Pass through silicone rubber seal between ontology.
Further, the seal assembly include clip and O circle, O circle by clip be clamped in two sides flange face it
Between, form sealing.
Further, the flange-interface quantity in the seal cavity can need to be extended according to test.
Further, the battery to be tested is installed on battery testing seat, and the positive and negative anodes of battery testing seat are logical
Conducting wire is crossed to be connected with the inside of binding post.
Further, the binding post quantity on second ontology can need to be adjusted according to test.
Multipurpose test system of the invention is easy to operate, mechanical strength is big, good airproof performance, at low cost, and it is empty to be suitable for lithium
Gas battery charging/discharging performance testing and electrochemical in-situ test.
Detailed description of the invention
Fig. 1 is the foundation structure schematic diagram of novel lithium-air battery multipurpose test system of the invention；
Fig. 2 is the top view and sectional view of test interface ontology and ventilation interface body of the invention；
Fig. 3 is the schematic diagram of internal structure of novel lithium-air battery multipurpose test system of the invention；
Fig. 4 is the structural schematic diagram after the extension of novel lithium-air battery multipurpose test system of the invention；
Fig. 5 is a kind of expanded application schematic diagram of novel lithium-air battery multipurpose test system of the invention；
Fig. 6 is the air tightness test result of ventilation interface of the invention, test interface, stainless steel cover board；
Fig. 7 is the electrification that two lithium-air batteries are tested using novel lithium-air battery multipurpose test system of the invention
Learn impedance stability result；
Fig. 8 is the cycle charge discharge using novel lithium-air battery multipurpose test system test lithium-air battery of the invention
Electrical test results.
Specific embodiment
Below with reference to attached drawing, a detailed description of the technical solution in the embodiment of the present invention is provided.
As shown in Figure 1, mainly including seal chamber for the novel lithium-air battery multipurpose test system in one embodiment
Body 1, ventilation interface 2, test interface 3, seal assembly 4.Seal cavity 1 is the hollow cylindrical of stainless steel material in the present embodiment
Cavity can also use aluminium alloy, copper alloy, titanium alloy, polytetrafluoroethylene (PTFE), polypropylene, polyethylene, organic in other embodiments
Glass, polyamide, glass material are prepared.
There are two flange-interfaces for 1 both ends of seal cavity tool, remaining position is closed in addition to flange-interface.One of flange
Interface 12 is connected by seal assembly 4 with the ventilation sealing of interface 2, another flange-interface 13 is connect by seal assembly 4 with test
3 sealing of mouth connects.As shown in the right figure of Fig. 2, the first noumenon 21 of ventilation interface 2 is flange plate, is opened up on the first noumenon 21
There are two through-hole, air inlet pipe 221 and exhaust pipe 231 protrude into seal cavity 1 after being each passed through two through-holes, 221 He of air inlet pipe
The intake valve 222 and exhaust valve 232 of control gas path on-off are respectively provided on exhaust pipe 231.As shown in the left figure of Fig. 2, survey
The second ontology 31 of mouth 3 of trying is flange plate, is opened up on the second ontology 31 there are four through-hole, is installed with one in each through-hole
Binding post 32.Two binding posts 32 are one group of connection, one group of battery to be tested.Battery is placed in inside seal cavity 1, and is led to
Binding post 32 is crossed to be connected with external electrochemical test system.
In the present embodiment, flange-interface 12 and flange-interface 13 use standard vacuum flange-interface --- KF40 interface, greatly
The leakproofness for improving multipurpose test system greatly greatly reduces the dress due to having used commercialized KF40 flange assembly
The cost of manufacture set.KF flange-interface, CF flange-interface, ISO-K large flange can also be used as needed in other embodiments
Interface or ISO-F large flange interface, while the flange-interface of two sides may be different type and size, to meet test need
It wants.
In the ventilation interface 2 of the present embodiment, the first noumenon 21 is the KF40 flange with certain thickness polypropylene material
Cover board.Use the KF40 flange-interface of polypropylene plastics standard out easy to process；Unlike polytetrafluoroethylene (PTFE), polypropylene is more
Easily it is connected with stainless steel tracheae and copper binding post, seals.Polypropylene material has good insulating properties simultaneously, prevents copper from connecing
It is short-circuit between terminal.Polyacrylic high mechanical strength, good corrosion resistance, so that the service life of multipurpose test system increases
Add, while influence of the air pressure to lithium-air battery performance can also be studied.Certainly material is also an option that in other embodiments
For stainless steel, aluminium alloy, copper alloy, titanium alloy, polyethylene, polystyrene, organic glass, nylon66 fiber or ABS resin.
In the test interface 3 of the present embodiment, the second ontology 31 is also using the KF40 with certain thickness polypropylene material
Flange plate.Material also can choose polyethylene, polystyrene, organic glass, nylon66 fiber, ABS resin in other embodiments.
The body flange the size of the cover plate of ventilation interface 2 and test interface 3 needs and corresponding flange-interface type and size
It needs unanimously, in order to seal linking.
In the present embodiment, 32 material of binding post is copper, copper alloy, aluminium alloy, stainless steel material, or close using multicore vacuum
Seal connector, Aviation Connector, radio-frequency joint (testing for high-frequency electrochemical).For large-sized flange-interface, can also increase
Add the binding post quantity on the second ontology 31, to increase the quantity of test lithium-air battery.
In the present embodiment, intake valve 222 and exhaust valve 232 use ball valve or needle-valve, air inlet pipe 221 and exhaust pipe 231 with
Pass through silicone rubber seal between the first noumenon 21.Battery to be tested can be installed on battery testing seat matched with battery,
And the positive and negative anodes of battery testing seat are connected by conducting wire with the inside of binding post 32.
As shown in figure 3, seal assembly 4 includes that clip and O are enclosed, O circle is clamped between the flange face of two sides by clip, shape
At sealing.In the present embodiment, seal assembly 4 encloses 413 and 412, first including two KF40 clips 423 and 422, two KF40O
KF40O circle 412 is placed between ontology 21 and flange-interface 12, then passes through 422 banding of KF40 clip；Second ontology 31 and flange
KF40O circle 413 is placed between interface 13, then passes through 423 banding of KF40 clip.
The novel lithium-air battery multipurpose test system of base in this present embodiment can carry out different battery testing examinations
It tests.In test, ventilation interface 2 is connected with seal cavity using KF40 clip 422 and KF40O circle 412, and close intake valve
222 and exhaust valve 232, test interface is not connected with seal cavity at this time.Then, all components are put into glove box, will assembled
Good CR2025 button lithium-air battery is put into button cell test bench 331 and button cell test bench 332 on test interface 2
On.Then, by using in seal assembly 4 remaining KF40 clip 423 and KF40O circle 413 by test interface 3 and seal chamber
Body is tightly connected.At this point, the atmosphere in novel lithium-air battery multipurpose test system of the invention is high-purity in glove box
Argon gas.The novel lithium-air battery multipurpose test system being sealed is taken out from glove box.High purity oxygen gas is passed through into gas
Flowmeter is passed through in novel lithium-air battery multipurpose test system with the Ventilation Rate of 0.5L/min from intake valve 222；Device
In gas be discharged from device by exhaust valve 232, drexel bottle.It is ventilating after ten minutes, is closing oxygen cylinder, closes intake valve
222, exhaust valve 232 is closed.Finally, lithium-air battery test equipment can test the electricity of lithium sky battery by connection binding post 32
Chemical property.
In addition, above-described embodiment shows that only there are two the apparatus structures of flange-interface in seal cavity 1, but it is only
The case where when basic test, can be expanded when needed, and flange-interface can increase to required number or be applied in combination.Such as
Shown in Fig. 4, the case where for the present invention is extended to totally 4 flange-interfaces, a flange-interface connection ventilation interface 2 at this time,
Excess-three flange-interface connecting test interface 3, can carry out multiple groups test simultaneously, develop expansion of the invention.Such as Fig. 5 institute
Showing, remaining interface can be used for being connected with a series of analytical and testing instruments such as difference electrochemistry mass spectrograph, pressure gage, moisture meters,
The amount and type of gas are generated for in-situ characterization lithium-air battery electrochemical process.Remaining interface can also study other gas
Influence of the body to lithium air electrochemical process, for example it is passed through the oxygen etc. containing micro-moisture.Therefore the multipurpose test system
KF40 flange-interface can be increased, be connected between each other by KF40 threeway or four-way, can be surveyed simultaneously under same atmosphere
Any number of lithium-air battery is tried, therefore develops favorable expandability of the invention.
Fig. 6 be to ventilation interface of the invention, test interface, stainless steel cover board air tightness test as a result, showing the dress
The air-tightness set is preferable, is able to satisfy use demand.Fig. 7 is to be surveyed using novel lithium-air battery multipurpose test system of the invention
Electrochemical impedance of two lithium-air batteries under different time is tried as a result, Fig. 8 is to test novel novel lithium air using this
Battery multipurpose test system tests the cyclic charging and discharging test of lithium-air battery as a result, showing that the present invention can be preferably applicable in
In the test of lithium-air battery charge-discharge performance and electrochemical in-situ test.
Above-described embodiment should not be construed as the essence of the present invention and range simply to illustrate that embodiments of the present invention
Restriction, any those skilled in the art make various modifications to the present invention alternatively, belonging to the model protected of the present invention
It encloses.
Claims (10)
1. a kind of novel lithium-air battery multipurpose test system, which is characterized in that including seal cavity (1), ventilation interface
(2), test interface (3) and seal assembly (4)；The seal cavity (1) is tubular housing, and seal cavity (1) has at least two
A flange-interface, remaining position is closed in addition to flange-interface；One of flange-interface is connect by seal assembly (4) with ventilation
Mouth (2) sealing connects, remaining flange-interface is connected by seal assembly (4) with test interface (3) sealing；
The first noumenon (21) of ventilation interface (2) is flange plate, opens up that there are two through-hole, air inlets on the first noumenon (21)
Pipe (221) and exhaust pipe (231) protrude into seal cavity (1) after being each passed through two through-holes, air inlet pipe (221) and exhaust pipe
(231) intake valve (222) and exhaust valve (232) of control gas path on-off are respectively provided on；
The second ontology (31) of the test interface (3) is flange plate, and the second ontology offers at least four through-holes on (31),
A binding post (32) is installed in each through-hole；It is internal that battery to be tested is placed in seal cavity (1), and passes through binding post
(32) it is connected with outside electrochemical test system.
2. novel lithium-air battery multipurpose test system as described in claim 1, which is characterized in that the flange-interface
Using KF flange-interface, CF flange-interface, ISO-K large flange interface or ISO-F large flange interface, preferably standard vacuum flange
Interface KF40 interface.
3. novel lithium-air battery multipurpose test system as described in claim 1, which is characterized in that the ventilation interface
(2) in, the first noumenon (21) is with certain thickness KF40 flange plate, and material is polypropylene material, stainless steel, aluminium conjunction
Gold, copper alloy, titanium alloy, polyethylene, polystyrene, organic glass, nylon66 fiber or ABS resin, preferably polypropylene material.
4. novel lithium-air battery multipurpose test system as described in claim 1, which is characterized in that the test interface
(3) in, the second ontology (31) is with certain thickness KF40 flange plate, and material is polypropylene material, polyethylene, polyphenyl second
Alkene, organic glass, nylon66 fiber, ABS resin, preferably polypropylene material.
5. novel lithium-air battery multipurpose test system as described in claim 1, which is characterized in that the binding post
(32) material is copper, copper alloy, aluminium alloy, stainless steel material, or uses multicore vacuum sealing connector, Aviation Connector, radio frequency
Connector.
6. novel lithium-air battery multipurpose test system as described in claim 1, which is characterized in that the intake valve
(222) and exhaust valve (232) uses ball valve or needle-valve, the air inlet pipe (221) and exhaust pipe (231) and the first noumenon (21) it
Between pass through silicone rubber seal.
7. novel lithium-air battery multipurpose test system as described in claim 1, which is characterized in that the seal assembly
It (4) include clip and O circle, O circle is clamped between the flange face of two sides by clip, forms sealing.
8. novel lithium-air battery multipurpose test system as described in claim 1, which is characterized in that the seal cavity
(1) the flange-interface quantity on can need to be extended according to test.
9. novel lithium-air battery multipurpose test system as described in claim 1, which is characterized in that second ontology
(31) binding post (32) quantity on can need to be adjusted according to test.
10. novel lithium-air battery multipurpose test system as described in claim 1, which is characterized in that described is to be tested
Battery be installed on battery testing seat, and the positive and negative anodes of battery testing seat are connected by conducting wire with the inside of binding post (32).
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| CN201811654029.6A CN109814038A (en) | 2018-12-29 | 2018-12-29 | A kind of novel lithium-air battery multipurpose test system |
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| CN201811654029.6A CN109814038A (en) | 2018-12-29 | 2018-12-29 | A kind of novel lithium-air battery multipurpose test system |
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| CN106340700A (en) * | 2016-11-05 | 2017-01-18 | 北京工业大学 | Three-electrode lithium air cell test die |
| CN206292647U (en) * | 2016-08-02 | 2017-06-30 | 南京大学（苏州）高新技术研究院 | A kind of device of controllable metal-air battery electrochemical property test atmosphere |
| CN206638791U (en) * | 2017-04-06 | 2017-11-14 | 西安科技大学 | A kind of new lithium-air battery test device |
-
2018
- 2018-12-29 CN CN201811654029.6A patent/CN109814038A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654566A (en) * | 2012-05-02 | 2012-09-05 | 上海交通大学 | Novel lithium air cell mould |
| CN103293482A (en) * | 2013-05-21 | 2013-09-11 | 上海交通大学 | Simple buckle-typed lithium air cell testing device |
| CN204758798U (en) * | 2015-07-21 | 2015-11-11 | 苏州大学张家港工业技术研究院 | Lithium air battery tests mould |
| CN206292647U (en) * | 2016-08-02 | 2017-06-30 | 南京大学（苏州）高新技术研究院 | A kind of device of controllable metal-air battery electrochemical property test atmosphere |
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Application publication date: 20190528 |