CN201289523Y - Tri-electrode system for analog buckle type lithium ion cell - Google Patents
Tri-electrode system for analog buckle type lithium ion cell Download PDFInfo
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- CN201289523Y CN201289523Y CNU2008202105120U CN200820210512U CN201289523Y CN 201289523 Y CN201289523 Y CN 201289523Y CN U2008202105120 U CNU2008202105120 U CN U2008202105120U CN 200820210512 U CN200820210512 U CN 200820210512U CN 201289523 Y CN201289523 Y CN 201289523Y
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- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 30
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000003792 electrolyte Substances 0.000 claims abstract description 9
- 239000012528 membrane Substances 0.000 claims abstract 18
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 23
- 229910052744 lithium Inorganic materials 0.000 claims description 20
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 14
- 239000010935 stainless steel Substances 0.000 claims description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 1
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 18
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 description 24
- 238000011056 performance test Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 239000008151 electrolyte solution Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000007599 discharging Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
本实用新型公开了一种模拟扣式锂离子电池三电极体系，包括：设有空腔的上膜具，密封安装于所述空腔一端的正极柱，下膜具，参比电极柱，以及放置于空腔中的正极片、隔膜、负极片、电解液，其中，在上膜具空腔中的正极片与正极柱电连接，上膜具侧壁上开有一通孔，参比电极柱密封安装于通孔中并与电解液接触，下膜具与负极片电连接并将上膜具中的空腔密封。本实用新型可以测试扣式电池式双电极性能，制备简单，测试便捷，可重复使用。
The utility model discloses a three-electrode system for a simulated button-type lithium ion battery, which comprises: an upper membrane tool provided with a cavity, a positive pole column sealed and installed at one end of the cavity, a lower membrane tool, a reference electrode column, and The positive electrode sheet, diaphragm, negative electrode sheet, and electrolyte placed in the cavity, wherein the positive electrode sheet in the upper membrane tool cavity is electrically connected to the positive electrode column, and a through hole is opened on the side wall of the upper membrane tool, and the reference electrode column The seal is installed in the through hole and is in contact with the electrolyte, the lower membrane tool is electrically connected with the negative plate and seals the cavity in the upper membrane tool. The utility model can test the double-electrode performance of the button battery type, has simple preparation, convenient testing and can be used repeatedly.
Description
Technical field
The utility model relates to a kind of secondary cell chemical property proving installation, particularly a kind of simulation buckle type lithium-ion battery three-electrode system.
Background technology
Lithium ion battery has advantages such as volume is little, energy density big, environmentally safe, has been applied to each electronic product more and more widely.Along with each electronic product function constantly increases, the performance requirement to lithium ion battery also improves constantly accordingly.Along with deepening continuously that battery is studied, also more and more for the research work of its material, performance and security problems.
The process of working when the lithium ion battery charge and discharge process is positive and negative electrodes in same, in order to simplify battery performance research, wish usually battery plus-negative plate is studied respectively, determine performance characteristic separately, could go deep into so effectively understanding battery operated state, have at improve battery performance.
CN201038264Y discloses one piece of patent of inventor's application in 2007, a kind of simulation lithium ion battery three-electrode system, it is provided with a simulated battery base with concave domain, contain the electrolytic solution that electric core and submergence should the electricity cores in this concave domain, it is characterized in that: this simulated battery base top is provided with a simulated battery cover plate that removably seals this concave domain, side on this simulated battery base is provided with the positive pole ear with electric core, the positive joint pin that negative lug removably connects respectively, negative joint pin, this positive joint pin, negative joint pin respectively with a positive terminal that exports to the simulated battery base exterior, negative terminal links to each other, offer a through hole that is connected with described concave domain on this simulated battery base, this through hole be equipped with sealedly with concave domain in the contacted contrast electrode of electrolytic solution.This piece patent provides a kind of simulation lithium ion rectangular cell three-electrode system, but its preparation process is comparatively complicated, and cost is higher.
Usually, another common research method is to adopt both positive and negative polarity as working electrode with as the lithium metal of electrode is made button cell, in addition, this button cell is made simple, make and the test duration weak point, improve the progress of research work greatly, have the low advantage of cost simultaneously.But because button cell only assembles electrode with a certain working electrode and lithium, only utilize button cell can not understand completed cell internal work situation fully, its test result also only can be reacted the unitary electrode performance.If make button cell with the both positive and negative polarity that normal battery is identical, two kinds of electrodes influence each other, and the performance evaluation meeting is very chaotic.
The utility model content
In order to overcome the confusion of using performance evaluation in the button cell test process that normal both positive and negative polarity makes, the utility model provides a kind of novel analog buckle type lithium-ion battery three-electrode system of simple in structure, easy to make and good airproof performance.
The technical solution adopted in the utility model is:
A kind of simulation buckle type lithium-ion battery three-electrode system comprises:
Be provided with the top die of cavity, be seal-installed on the positive terminal of described cavity one end, following film tool, the contrast electrode post, and be positioned over positive plate, barrier film, negative plate, electrolytic solution in the cavity, it is characterized in that, described positive plate in described cavity is electrically connected with described positive terminal, have a through hole on the described top die sidewall, described contrast electrode column sealing is installed in the through hole and with electrolytic solution and contacts, and described film tool down is electrically connected with described negative plate and described cavity is sealed.
Described contrast electrode post comprises lithium metal and seal, and described lithium metal contacts with electrolytic solution in through hole inside, and described seal is electrically connected and seals through hole with lithium metal, and described seal can be screw, bolt etc.
Also be provided with a liquid injection hole that is used to inject electrolytic solution on the described mold, described liquid injection hole uses the seal sealing, and described seal can be screw, bolt etc.Described top die and described film tool mutual insulating down, described top die can be made for the insulation material, and described film tool down can be made for metal material.
Described film tool down is provided with a boss, and described boss cooperates Bing to be electrically connected described negative plate with described cavity.Also be provided with a negative terminal on the film tool under described.
Between described positive terminal and the described cavity, and seal by O-ring seal between described film tool down and the mold, described top die and described film tool down are fastening by securing member, and described securing member can be screw, bolt etc.
In the described cavity, between described positive terminal and described positive plate, also be provided with a presser device, described presser device comprises cruciform metal column, metal spring, metal disk, and described metal spring is enclosed within on the described cruciform metal column, and described metal disk is pressed on the described metal spring; Described cruciform metal column upper end is electrically connected with described positive terminal, and described metal disk is electrically connected with described positive plate.
Described film tool, positive terminal, negative terminal, contrast electrode post, presser device down are by a kind of the making in stainless steel, aluminium, the aluminium alloy; Described top die is by teflon, makes on a kind of or a kind of in the high density polyethylene.
Than prior art, advantage of the present utility model is: simulation buckle type lithium-ion battery three-electrode system provided by the utility model, and with respect to button cell, it can test the chemical property of both positive and negative polarity simultaneously; Test with respect to making rectangular cell, its pole piece is the individual layer pole piece, and preparation is easy, and test period is short, and its easy operating, and whole process can complete in glove box fully, reduces the bad reaction of electric core and air.Research range is extensive in addition, can test various materials, comprises various positive and negative pole materials and electrolytic solution etc., can also reuse.
Description of drawings
Fig. 1 is the side cutaway view of the utility model specific embodiment simulation buckle type lithium-ion battery three-electrode system.
Fig. 2 is the vertical view of the utility model specific embodiment simulation buckle type lithium-ion battery three-electrode system.
Fig. 3 is the charge-discharge performance test curve of the utility model Comparative Examples button cell.
Fig. 4 is the charge-discharge performance test curve of the utility model specific embodiment simulation buckle type lithium-ion battery three-electrode system.
Fig. 5 is the cycle performance test curve of the utility model Comparative Examples button cell.
Fig. 6 is the cycle performance test curve of the utility model specific embodiment simulation buckle type lithium-ion battery three-electrode system.
Specific embodiments
Below in conjunction with the drawings and specific embodiments the utility model is elaborated:
As shown in Figure 1, present embodiment provides a kind of embodiment of the present utility model, a kind of simulation buckle type lithium-ion battery three-electrode system, comprise positive terminal (1), O-ring seal (2), top die (3), liquid injection hole (14), presser device (5), contrast electrode post (6), bed die (7), negative terminal (8), positive plate (9), barrier film (10), negative plate (11).Be provided with a cavity (12) in the top die (3), positive terminal (1) is assemblied in the upper end of cavity (12) by O-ring seal (2).Top die (3) sidewall is provided with through hole (13) and liquid injection hole (14).Presser device (5) is made up of the stainless steel column of cruciform, stainless steel spring, stainless steel disk, and stainless steel spring is enclosed within on the stainless steel column of cruciform, and the stainless steel wafer presser is on stainless steel spring; The stainless steel column of cruciform upper end contacts with positive terminal (1), and positive plate (9) is pressed on the stainless steel disk.Following film tool (7) is provided with a boss (16), and cavity (12) lower end in this boss (16) and the top die (3) closely cooperates.This bed die (7) sidewall also is provided with a negative terminal (8).
Wherein, top die (3) can use insulating material to make, and this insulating material does not influence test process with respect to electrode, electrolyte stable, and as teflon, materials such as high density polyethylene are made.This specific embodiment uses teflon to make.Bed die (7), positive terminal (1), negative pole are lived (8), presser device (5), contrast electrode post (6) and are used with respect to materials such as the metal material of research electrode, electrolyte stable such as stainless steel, aluminium, aluminium alloy, inert metals and make, and this specific embodiment is made by stainless steel.
But the material of top die, following film tool is not limited to above-mentioned being selected from the invention of the present utility model, can top die be that metal material, following film tool are made for the insulation material yet.
The concrete assembling process of this specific embodiment simulation buckle type lithium-ion battery three-electrode system is as follows:
At first, lithium metal is pressed in the through hole (13) of top die (3) sidewall, the lithium sheet is wipeed the inner to the surface off with instruments such as blades to be no more than the shell inwall for well, the outside is screwed into contrast electrode post (6), and contrast electrode post (6) closely cooperates with through hole (13) and seals.Secondly, (11 are placed in the cavity (12) of top die (3) successively with working electrode positive plate (9), barrier film (10), negative plate.Top die (3) and following film tool (7) are buckled well, boss (16) is pressed in the cavity (12), and fastening airtight with screw again.Wherein, following film tool (7) upper surface also is provided with O-ring seal (2).Inject the electrolyte in the cavity (12) by liquid injection hole (14) at last, and use bolt seal liquid injection hole (14).
In the glove box of argon shield,, assemble, make 3 simulation buckle type lithium-ion battery three-electrode system A1, A2, A3 according to above-mentioned simulation button lithium battery assembling process.
About the plant bulk of the simulation lithium ion battery three-electrode system that utility model provided, do not do concrete restriction, the researchist can carry out its apparent size of appropriate design according to different test requests or by the personal inclination.
Comparative Examples
Utilize and the identical working electrode positive plate of simulation button lithium battery three electrodes, negative plate, electrolytic solution and barrier film, make 10 button cells of assembling according to this area conventional process, after the test voltage, select 5 button cells that voltage is normal and stable, be labeled as T1, T2, T3, T4, T5.
Battery performance test
A. charge-discharge performance test
Button cell T1, T2, T3, T4, T5 that lithium battery three-electrode system A1, A2, A3 and the Comparative Examples that embodiment is made made, under normal temperature condition, with 2mA (1C) current charges to 4.2V cut-off current is 0.2mA (0.1C), record battery capacity this moment, be discharged to 3V, logging test results with 2mA (1C) then.
B. cycle performance test
Button cell T1, T2, T3, T4, T5 that lithium battery three-electrode system A1, A2, A3 and the Comparative Examples that embodiment is made made, under normal temperature condition, with 2mA (1C) current charges to 4.2V cut-off current is 0.2mA (0.1C), record battery capacity this moment, be discharged to 3V with 2mA (1C) then, repeat above-mentioned charging and discharging process and promptly circulate logging test results for 50 times 50 times.
Test result
The electrochemical property test result of embodiment and Comparative Examples is respectively as Fig. 3-6, and wherein Fig. 3 is the charge-discharge performance test curve of Comparative Examples button cell, and Fig. 4 is the charge-discharge performance test curve of simulation button cell three-electrode system; Fig. 5 is the cycle performance test curve of button cell, and Fig. 6 is the cycle performance test curve of simulation button lithium battery.
Interpretation of result
The charge-discharge performance test curve of simulating the button cell three-electrode system by Fig. 4 as can be seen, the charging and discharging curve of the positive pole-contrast electrode before and after the circulation overlaps substantially, the charging and discharging curve of the negative pole-contrast electrode before and after the circulation also overlaps substantially.Electromotive forces anodal and negative pole circulation front and back are stable in charge and discharge process, illustrate that the electromotive force difference of contrast electrode before and after circulation is little, and comparison diagram 3, that Fig. 4 simulates discharging and recharging of three electrode charging and discharging curve of button lithium battery and button cell as can be seen is basic identical, illustrate that also the metal contrast electrode does not change before and after circulation, illustrate that introducing contrast electrode does not have influence to last test result, the three electrode charging and discharging curve of simulation button lithium battery is real battery charging and discharging curve.Like this, utilize simulation button lithium battery three-electrode system clearly to study simultaneously to the both positive and negative polarity performance of battery.
Fig. 5 and Fig. 6 are respectively button cell and 50 volume change figure of simulation button lithium battery three-electrode system charge and discharge cycles, contrast two figure as can be seen, utilizing button simulation three-electrode system of the present utility model to carry out 50 circulation back capacity on average keeps more than 85% at least, and after the common button cell circulation 20 times, rapid decay of capacity and curve are unsmooth, compare the simulation buckle type lithium-ion battery three-electrode system stable performance that two figure illustrate that the utility model provides, the test result good stability.
The building block of the simulation button lithium battery three-electrode system device that the utility model proposes in addition, can Reuse, also can not add the reference electrode post, be assembled into two terminal battery. It is than the button electricity The pond owing to reusing, has the lower remarkable advantage that waits of cost.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNU2008202105120U CN201289523Y (en) | 2008-08-23 | 2008-08-23 | Tri-electrode system for analog buckle type lithium ion cell |
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| CNU2008202105120U CN201289523Y (en) | 2008-08-23 | 2008-08-23 | Tri-electrode system for analog buckle type lithium ion cell |
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| CN201289523Y true CN201289523Y (en) | 2009-08-12 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149192A (en) * | 2013-02-22 | 2013-06-12 | 厦门大学 | In-situ electrochemical-Raman combined testing device for non-aqueous system |
| CN103293482A (en) * | 2013-05-21 | 2013-09-11 | 上海交通大学 | Simple buckle-typed lithium air cell testing device |
| CN106018528A (en) * | 2016-05-11 | 2016-10-12 | 中国科学院电工研究所 | Lithium flow cell electrode slurry electrochemical performance testing device |
| CN107102041A (en) * | 2017-06-16 | 2017-08-29 | 济南大学 | It is a kind of to be used for the electrode electrolyser of laminated type three of lithium battery test chemical in situ |
| CN105676031B (en) * | 2016-02-05 | 2018-09-21 | 株洲升华科技有限公司 | Lithium ion battery electrode material electric performance testing device and battery production method |
| CN109116256A (en) * | 2018-09-20 | 2019-01-01 | 昆明云大新能源有限公司 | A kind of electrochemical test device for three-electrode system and its electrochemical test method |
| CN109143086A (en) * | 2018-07-24 | 2019-01-04 | 格林美股份有限公司 | A kind of lithium battery performance testing device |
| CN109216831A (en) * | 2017-06-29 | 2019-01-15 | 中国科学院上海硅酸盐研究所 | A kind of test metal-air redox flow battery device |
| CN111413389A (en) * | 2020-03-25 | 2020-07-14 | 上海隼聚国际贸易有限公司 | Battery related material electrochemical performance testing device |
| CN111830414A (en) * | 2019-04-13 | 2020-10-27 | 南杰智汇(深圳)科技有限公司 | Device capable of testing metal air button cell |
| CN111896597A (en) * | 2020-07-06 | 2020-11-06 | 上海纳米技术及应用国家工程研究中心有限公司 | Three-electrode system detection device for detecting electrochemical performance of button cell |
| CN112335112A (en) * | 2018-03-08 | 2021-02-05 | 瓦尔达微电池有限责任公司 | Lithium-ion battery for automobile energy storage device and method for manufacturing the same |
| CN115754760A (en) * | 2022-11-08 | 2023-03-07 | 湖北亿纬动力有限公司 | Lithium battery fast charging failure analysis method and three-electrode battery |
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2008
- 2008-08-23 CN CNU2008202105120U patent/CN201289523Y/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103149192A (en) * | 2013-02-22 | 2013-06-12 | 厦门大学 | In-situ electrochemical-Raman combined testing device for non-aqueous system |
| CN103149192B (en) * | 2013-02-22 | 2015-05-13 | 厦门大学 | In-situ electrochemical-Raman combined testing device for non-aqueous system |
| CN103293482A (en) * | 2013-05-21 | 2013-09-11 | 上海交通大学 | Simple buckle-typed lithium air cell testing device |
| CN103293482B (en) * | 2013-05-21 | 2016-09-07 | 上海交通大学 | Simple button lithium-air battery test device |
| CN105676031B (en) * | 2016-02-05 | 2018-09-21 | 株洲升华科技有限公司 | Lithium ion battery electrode material electric performance testing device and battery production method |
| CN106018528A (en) * | 2016-05-11 | 2016-10-12 | 中国科学院电工研究所 | Lithium flow cell electrode slurry electrochemical performance testing device |
| CN106018528B (en) * | 2016-05-11 | 2018-08-31 | 中国科学院电工研究所 | Lithium electrode of liquid flow cell slurry electrochemical property test device |
| CN107102041A (en) * | 2017-06-16 | 2017-08-29 | 济南大学 | It is a kind of to be used for the electrode electrolyser of laminated type three of lithium battery test chemical in situ |
| CN107102041B (en) * | 2017-06-16 | 2024-01-23 | 济南大学 | Laminated three-electrode electrolytic tank for electrochemical test of in-situ lithium battery |
| CN109216831A (en) * | 2017-06-29 | 2019-01-15 | 中国科学院上海硅酸盐研究所 | A kind of test metal-air redox flow battery device |
| CN112335112A (en) * | 2018-03-08 | 2021-02-05 | 瓦尔达微电池有限责任公司 | Lithium-ion battery for automobile energy storage device and method for manufacturing the same |
| CN112335112B (en) * | 2018-03-08 | 2023-07-28 | 瓦尔达微电池有限责任公司 | Lithium ion battery for automobile energy storage device and manufacturing method thereof |
| CN109143086A (en) * | 2018-07-24 | 2019-01-04 | 格林美股份有限公司 | A kind of lithium battery performance testing device |
| CN109143086B (en) * | 2018-07-24 | 2021-02-19 | 格林美股份有限公司 | Lithium battery performance testing device |
| CN109116256A (en) * | 2018-09-20 | 2019-01-01 | 昆明云大新能源有限公司 | A kind of electrochemical test device for three-electrode system and its electrochemical test method |
| CN109116256B (en) * | 2018-09-20 | 2024-04-05 | 昆明云大新能源有限公司 | Three-electrode system electrochemical testing device and electrochemical testing method thereof |
| CN111830414A (en) * | 2019-04-13 | 2020-10-27 | 南杰智汇(深圳)科技有限公司 | Device capable of testing metal air button cell |
| CN111413389A (en) * | 2020-03-25 | 2020-07-14 | 上海隼聚国际贸易有限公司 | Battery related material electrochemical performance testing device |
| CN111896597A (en) * | 2020-07-06 | 2020-11-06 | 上海纳米技术及应用国家工程研究中心有限公司 | Three-electrode system detection device for detecting electrochemical performance of button cell |
| CN115754760A (en) * | 2022-11-08 | 2023-03-07 | 湖北亿纬动力有限公司 | Lithium battery fast charging failure analysis method and three-electrode battery |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
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