CN206906306U - A kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ - Google Patents
A kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ Download PDFInfo
- Publication number
- CN206906306U CN206906306U CN201720702540.3U CN201720702540U CN206906306U CN 206906306 U CN206906306 U CN 206906306U CN 201720702540 U CN201720702540 U CN 201720702540U CN 206906306 U CN206906306 U CN 206906306U
- Authority
- CN
- China
- Prior art keywords
- electrode
- lithium battery
- annulus
- electrolyser
- laminated type
- 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.)
- Active
Links
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
A kind of device for lithium battery test chemical in situ is the utility model is related to, belongs to lithium battery material assessment technique field.This patent discloses a kind of electrode electrolyser of laminated type three of lithium battery electrochemical in-situ test, it includes working electrode base, reference electrode annulus fixed seat and to electrode top cover three parts, the apparatus structure simulates the button-type battery of CR20 series different-thickness, reduce electrolytic cell internal resistance, and reference electrode is added in the structure, so as to effectively monitor charge and discharge process in test electrode structure and performance change, realize it is comprehensive, observe electrochemical process with multi-angle.The device invented can accurately and efficiently evaluate the electrochemistry and battery performance of the parts such as electrode of lithium cell, electrolyte and barrier film.
Description
Technical field
A kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ is the utility model is related to, belongs to lithium
Cell evaluation test device technical field.
Background technology
For lead-acid battery, ickel-cadmium cell and metal Ni-H cell, lithium battery has high operating voltage, length
Cycle life, preferable power density and energy density, and it is environment-friendly, therefore lithium battery is as main secondary electricity
Pond is widely used.But with the extensive use of lithium battery, requirement of the people to lithium battery improves constantly, novel electrode material
The research and development of material and electrolyte are carried out extensively.A kind of composition letter that can be used in electrode material and electrolyte electrochemical performance evaluation
Single, easy to operate electrolytic cell turn into current industry there is an urgent need to.
At present, lithium battery Chemical Evaluation method mainly has two methods, i.e. CR20 series button-type battery and electrolyte
The electrode electrolyser of immersion three.CR20 series button-type battery is two electrode systems, therefore may only carry out charge-discharge performance
Test, it is difficult to the current potential of accurate control working electrode, it is not possible to be accurately used for cyclic voltammetric and impedance behavior test；Electrolyte
The electrode electrolyser of immersion three typically uses the container of plastic products, and working electrode, lithium metal conduct are used as by the use of electrode material
Reference electrode and sealed to electrode, and with rubber stopper, because interelectrode distance is larger, therefore electrolytic cell contact resistance is larger, with
Certain deviation be present in CR20 series button-type battery test results；And the sealing of electrolytic cell directly affects chemical property
The accuracy of measure.
Laminated type three electrode electrolyser described in the utility model for lithium battery test chemical in situ can simulate
CR20 series button-type batteries, reduce electrolytic cell internal resistance, and add reference electrode in the structure, so as to which effectively monitoring is filled
Electrode structure and electrode performance change, comprehensive, multi-angle observation electrochemical process in discharge process.Can be accurately and efficiently
Evaluate the chemical property change of lithium battery constituent material.
The content of the invention
The utility model, which mainly solves now widely used CR20 series button-type battery, can not carry out three-electrode system
The problem of evaluation and the electrode Simple electrolytic tank internal resistance of now widely used electrolyte immersion three it is larger and sealing the problem of, carry
For a kind of structure is similar to CR20 series button-type battery structures, internal resistance is smaller and can be used for two electrodes simultaneously and three electrodes are surveyed
The electrolytic cell assembly of examination.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is as follows：
A kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ, it is characterised in that include：Work
Electrodes base, reference electrode annulus fixed seat and to 3 parts of electrode top cover；
The working electrode base portion is made up of working electrode base and polytetrafluoroethylene (PTFE) annular thin slice, working electrode
Base contacts with pole piece, while utilizes polytetrafluoroethylene (PTFE) annular thin slice by working electrode base and reference electrode annulus fixed seat
Isolation；
The reference electrode annulus fixed seat fixes spiral shell by Metal Flake annulus, reference electrode lead, reference electrode lead
Silk, reference electrode lead fixed dam, and connect working electrode base portion and to electricity with fixing reference electrode and having concurrently
The insulating polymer annulus cylinder composition of pole header field effect, Metal Flake annulus is sheets of conductive annulus, is welded with wire, together
Shi Liyong insulating polymer annulus cylinders are isolated with working electrode base and to electrode header field；
It is described electrode header field to be included to electrode contact nahlock, anti-skidding gim peg, to electrode top cover and binding post；
The electrode electrolyser of lithium battery use for electrochemical tests laminated type three in situ described in the utility model, filled carrying out battery
During discharge test, it is connected by working electrode, to electrode with charge-discharge test instrument；Carrying out cyclic voltammetric, electrochemical AC impedance
During Deng testing, by working electrode, reference electrode and electrode is connected with electrochemical workstation.
In the above-mentioned technical solutions, the material of working electrode base is in non-magnetic austenitic stainless steels, aluminium, copper
One kind, it is provided for connecting the hole of binding clip in Qi Bishang.
In the above-mentioned technical solutions, the external diameter of polytetrafluoroethylene (PTFE) annular thin slice is consistent with working electrode base inner diameter, circle
Ring width is more than Metal Flake annulus.
In the above-mentioned technical solutions, the Metal Flake annulus material is non-magnetic austenitic stainless steels, aluminium, copper etc.
One kind in high conductivity metal, the groove for contributing to metal lithium bands reference electrode to adhere to simultaneously is set（13）, external diameter and width
It is slightly less than insulating polymer annulus cylinder, and is embedded in the insulating polymer annulus cylinder bottom.
In the above-mentioned technical solutions, the material of insulating polymer annulus cylinder is in polytetrafluoroethylene (PTFE), polyether-ether-ketone, acrylic
One kind.
In the above-mentioned technical solutions, reference electrode lead passes through inside insulating polymer annulus cylinder, utilizes conductive lead wire
Fixed screw and lead fixed dam fasten to form reference electrode binding post.
In the above-mentioned technical solutions, insulating polymer annulus cylinder is more than to the total height of electrode header field, installed successively
To electrode contact nahlock, anti-skidding gim peg, to electrode top cover and binding post.
In the above-mentioned technical solutions, screwed hole is provided with to electrode top cover upper end to electrode header field, for connecing
Terminal；Lower end is provided with cylindrical inner groovy, is connected by anti-skidding gim peg with contacting nahlock to electrode.
In the above-mentioned technical solutions, pole piece is more than to the diameter that nahlock is contacted to electrode of electrode header field.
In the above-mentioned technical solutions, working electrode base, reference electrode annulus fixed seat and to 3 parts of electrode top cover it
Between be connected through a screw thread, fasten.
A kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ, specific work step of testing is including following
Step：
A. the preparation of working electrode
Weigh active material, binding agent and conductive carbon black by a certain percentage, using roll, two pairs of rollers the methods of prepare pole piece
Film, then prepare a diameter of 12mm electrode slice using sheet-punching machine and be depressed on collector, working electrode is made；
B. electro-chemical measuring apparatus assembles
By the working electrode prepared, impregnation electrolyte glassine paper and polytetrafluoroethylene (PTFE) annular thin slice, order is pacified respectively
Working electrode base center and edge are placed on, laminates neatly, appropriate electrolyte is added dropwise, it is flooded working electrode and is attached to gold
Belong to the annular lithium piece on sheet annulus, then barrier film be placed in the cellophane surfaces for facing working electrode, at the same with work
Make the relative position of electrode place with working electrode lithium piece of the same size, using as one end of the wire of reference electrode lead with
Reference electrode metal ring is connected by spot welding, in the hole of other end insertion insulating polymer annulus cylinder, and will be used as reference electricity
The ring-type lithium band thin slice of pole is adhering closely to reference electrode annulus and has fluted side, and reference electrode fixed seat annulus cylinder is pacified
On working electrode base, screw thread, then install to electrode contact nahlock, anti-skidding gim peg and to electrode top cover, rotation
Tight screw thread；
C. electrochemical property test
By the working electrode of the electrode electrolyser of electro-chemical measuring apparatus laminated type three assembled, reference electrode and to electrode
Binding post corresponding to electrochemical workstation is connected respectively, carries out the electro-chemical test under the conditions of three-electrode system, such as exchanges
Impedance, cyclic voltammetric etc.；By working electrode, to electrode, binding post corresponding to charge-discharge test instrument is connected respectively, is filled
Discharge test.
Beneficial effect of the present utility model is：
1st, laminated type three electrode electrolyser provided by the utility model for lithium battery test chemical in situ is simulated
CR20 series button-type batteries, and reference electrode is added in battery structure, two electrode charge and discharges can be effectively carried out simultaneously
Test and the test of three electrode cycle volt-ampere, electrochemical AC impedance, effectively monitor the electrochemical process in charge and discharge process.
2nd, laminated type three electrode electrolyser provided by the utility model for lithium battery test chemical in situ, its structure
Simply, it is easy to operate, reduce the use of active material.
3rd, laminated type three electrode electrolyser provided by the utility model for lithium battery test chemical in situ can be accurate
Really, the chemical property of active electrode material is effectively evaluated, is advantageous to the comprehensive performance evaluation of electrode active material.
Brief description of the drawings
Fig. 1 structural representations of the present utility model
Fig. 2 working electrode base schematic diagrams, on：Top view, under：Front view.
Fig. 3 polytetrafluoroethylene (PTFE) annular thin slice schematic diagrames, on：Top view, under：Front view.
Fig. 4 reference electrode annulus fixed seat schematic diagrames, it is left：Front view, upper right：Top view, bottom right：Upward view
Fig. 5 reference electrode sheets of conductive annulus schematic diagrames, it is left：Front view, it is right：Upward view.
Fig. 6 electrode header field schematic diagrames, it is left：Front view, it is right：Upward view.
Reference in figure is expressed as：
1- working electrodes base, 2- polytetrafluoroethylene (PTFE) annulars thin slice, the Metal Flake annulus of 3-, 4- reference electrodes lead,
5- reference electrode leads fixed screw, 6- reference electrode leads fixed dam, 7- insulating polymer annulus cylinder, 8- contact to electrode
The anti-skidding gim peg of nahlock, 9-, 10- join to electrode top cover, 11- binding posts, 12- working electrodes wiring hole, 13- endless metal lithiums band
Adhere to groove than electrode.
Embodiment
The present utility model is described below with reference to specific embodiment.
Embodiment 1
A. the preparation of working electrode
By 7:1:2 mass ratioes weigh graphite, PTFE emulsion and conductive carbon black, using roll, two pairs of rollers the methods of prepare pole piece
Film, then prepare a diameter of 12mm electrode slice using sheet-punching machine and be depressed on nickel screen, graphite working electrode is made；
B. electro-chemical measuring apparatus assembles
By the working electrode prepared, impregnation electrolyte glassine paper and polytetrafluoroethylene (PTFE) annular thin slice, order is pacified respectively
Working electrode base center and edge are placed on, laminates neatly, appropriate electrolyte is added dropwise, it is flooded working electrode and is attached to gold
Belong to the annular lithium piece on sheet annulus, then PP/PE porous septums are placed in the cellophane surfaces for facing working electrode, together
The relative position of Shi Yu working electrodes is placed and working electrode lithium piece of the same size, using as the wire of reference electrode lead
One end be connected with reference electrode metal ring by spot welding, the other end insertion insulating polymer annulus cylinder hole in, and will make
The fluted side of reference electrode annulus tool is adhering closely to for the ring-type lithium band thin slice of reference electrode, by reference electrode fixed seat
Annulus cylinder is arranged on working electrode base, screw thread, is then installed and nahlock, anti-skidding gim peg is contacted to electrode and to electrode
Top cover, screw thread；
C. electrochemical property test
By the working electrode of the electrode electrolyser of electrochemical measurement laminated type three assembled, reference electrode and electrode is distinguished
Binding post corresponding to electrochemical workstation is connected, carry out three-electrode system under the conditions of electro-chemical test, as AC impedance,
Cyclic voltammetric etc.；By working electrode, to electrode, binding post corresponding to charge-discharge test instrument is connected respectively, carries out charge and discharge electrical measurement
Examination.
The polytetrafluoroethylene film may be replaced by polyether-ether-ketone or other chemistry and electrification in the above-described embodiments
Have good stability, high temperature-resistant polymer membrane material, and the collector of the working electrode can also use carbon cloth or wire netting
It can be circular, square etc. Deng, the electrode shape, no longer enumerate here.
Obviously, above-described embodiment is only to clearly explain how one made using the present utility model device
Citing, and the restriction not to embodiment.For those of ordinary skill in the field, on the basis of the above description
It can also make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.And
Thus within the protection domain that the obvious changes or variations extended out is created still in the present utility model.
Claims (10)
1. a kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ, it is characterised in that include：Work electricity
Pole base, reference electrode annulus fixed seat and to 3 parts of electrode top cover；
The working electrode base portion is by working electrode base (1）And polytetrafluoroethylene (PTFE) annular thin slice（2）Composition, work electricity
Pole base（1）Contacted with pole piece, while utilize polytetrafluoroethylene (PTFE) annular thin slice（2）Isolate with reference electrode annulus fixed seat；
The reference electrode annulus fixed seat is by Metal Flake annulus（3）, reference electrode lead（4）, reference electrode lead fixes
Screw（5）, reference electrode lead fixed dam（6）, and with fixed reference electrode and have connection working electrode base portion concurrently
The insulating polymer annulus cylinder for dividing and acting on electrode header field（7）Composition, Metal Flake annulus（3）Justify for sheets of conductive
Ring, with reference electrode lead（4）Welding, while utilize insulating polymer annulus cylinder（7）With working electrode base（1）With to electrode
Header field is isolated；
It is described that electrode header field is included to contact nahlock to electrode（8）, anti-skidding gim peg（9）, to electrode top cover（10）With connect
Terminal（11）；
The electrode electrolyser of lithium battery test chemical laminated type three in situ, when carrying out battery charging and discharging test, by working electrode,
Electrode is connected with charge-discharge test instrument；When carrying out the test such as cyclic voltammetric, electrochemical AC impedance, by working electrode, ginseng
It is connected than electrode and to electrode with electrochemical workstation.
2. a kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ according to claim 1, its
It is characterised by, working electrode base（1）Material be non-magnetic austenitic stainless steels, aluminium, one kind in copper, on its wall
It is provided for connecting the hole of binding clip（12）.
3. a kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ according to claim 1, its
It is characterised by, polytetrafluoroethylene (PTFE) annular thin slice（2）External diameter and working electrode base（1）Internal diameter is consistent, and annular width is more than
Metal Flake annulus（3）.
4. a kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ according to claim 1, its
It is characterised by, the Metal Flake annulus（3）Material is the high conductivity metals such as non-magnetic austenitic stainless steels, aluminium, copper
In one kind, simultaneously set contribute to metal lithium bands reference electrode adhere to groove（13）, the external diameter and width of annulus be smaller
In insulating polymer annulus cylinder（7）, and it is embedded in the insulating polymer annulus cylinder bottom.
5. a kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ according to claim 1, its
It is characterised by, insulating polymer annulus cylinder（7）Material be polytetrafluoroethylene (PTFE), polyether-ether-ketone, one kind in acrylic.
6. a kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ according to claim 1, its
It is characterised by, reference electrode lead（4）From insulating polymer annulus cylinder（7）Inside passes through, and utilizes conductive lead wire fixed screw（5）
And lead fixed dam（6）Fastening forms reference electrode binding post.
7. a kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ according to claim 1, its
It is characterised by, insulating polymer annulus cylinder is more than to the total height of electrode header field（7）, install successively and nahlock contacted to electrode
（8）, anti-skidding gim peg（9）, to electrode top cover top cover（10）And binding post（11）.
8. a kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ according to claim 1, its
It is characterised by, to electrode header field to electrode top cover（10）Upper end is provided with screwed hole, for connecting binding post（11）；Lower end
Provided with cylindrical inner groovy, pass through anti-skidding gim peg（9）Nahlock is contacted with to electrode（8）It is connected.
9. a kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ according to claim 1, its
It is characterised by, nahlock is contacted to electrode to electrode header field（8）Diameter be more than pole piece.
10. a kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ according to claim 1, its
Be characterised by, working electrode base, reference electrode annulus fixed seat and to being connected through a screw thread between 3 parts of electrode top cover,
Fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702540.3U CN206906306U (en) | 2017-06-16 | 2017-06-16 | A kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702540.3U CN206906306U (en) | 2017-06-16 | 2017-06-16 | A kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206906306U true CN206906306U (en) | 2018-01-19 |
Family
ID=61284677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720702540.3U Active CN206906306U (en) | 2017-06-16 | 2017-06-16 | A kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206906306U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109742268A (en) * | 2018-12-28 | 2019-05-10 | 蜂巢能源科技有限公司 | Reference electrode ejector |
| CN112683978A (en) * | 2020-12-18 | 2021-04-20 | 天津力神电池股份有限公司 | Electrolytic cell for testing ionic conductivity of lithium ion battery electrolyte and testing method thereof |
| CN115248236A (en) * | 2021-12-31 | 2022-10-28 | 青岛大学 | In-situ magnetoelectric test device and method |
-
2017
- 2017-06-16 CN CN201720702540.3U patent/CN206906306U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109742268A (en) * | 2018-12-28 | 2019-05-10 | 蜂巢能源科技有限公司 | Reference electrode ejector |
| CN112683978A (en) * | 2020-12-18 | 2021-04-20 | 天津力神电池股份有限公司 | Electrolytic cell for testing ionic conductivity of lithium ion battery electrolyte and testing method thereof |
| CN115248236A (en) * | 2021-12-31 | 2022-10-28 | 青岛大学 | In-situ magnetoelectric test device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107102041B (en) | Laminated three-electrode electrolytic tank for electrochemical test of in-situ lithium battery | |
| CN206906306U (en) | A kind of electrode electrolyser of laminated type three for lithium battery test chemical in situ | |
| CN103149192B (en) | In-situ electrochemical-Raman combined testing device for non-aqueous system | |
| CN208460908U (en) | For measuring the three-electrode battery of battery electrochemical specific surface area active | |
| CN101788454A (en) | Method for testing corrosion behavior under thin liquid film in gas environment | |
| CN101576607A (en) | Method for detecting nickel-hydrogen battery separator wet electric resistance and device thereof | |
| CN202949008U (en) | Triple-electrode device of lithium ion battery | |
| CN110190325A (en) | Four-electrode lithium-sulfur battery, preparation method thereof and electrode electrochemical characteristic monitoring method | |
| CN107039694A (en) | Device and method for observing electrochemical reaction process of lithium ion battery pole piece | |
| CN209356443U (en) | A kind of fixture of lithium battery diaphragm electrochemical property test | |
| CN103399274B (en) | A kind of method of testing of capacity of accumulator monolithic pole plate | |
| CN109470422A (en) | A kind of Li-ion batteries piles device for detecting sealability | |
| CN209001049U (en) | Button type lithium ion symmetrical battery | |
| CN202025833U (en) | Three-electrode button cell | |
| CN208255379U (en) | A kind of test probe for battery detecting | |
| CN107728079B (en) | Quick detecting system of photovoltaic energy storage battery | |
| CN109444746A (en) | Measure the method that battery carries out internal current size when lancing test | |
| CN213780178U (en) | Clamp for testing short circuit of button battery before liquid injection | |
| CN201110889Y (en) | Secondary batteries electrochemistry performance test apparatus | |
| CN209167509U (en) | A kind of battery mass test device | |
| CN110865102B (en) | Mold for researching metal-based water-based battery | |
| CN204903401U (en) | Lithium cell electrode material life -span detecting system based on normal position raman and electrochemistry composite algorithm | |
| CN101377539B (en) | Electrolytic cell for battery electrochemical measuring | |
| CN209606369U (en) | It is a kind of for detecting the device of electrolyte electrochemical performance | |
| CN207067048U (en) | A kind of lithium battery material high flux test platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |