CN101504378A - Lithium ion battery electro-chemical test box used for on-site X-ray diffraction analysis - Google Patents
Lithium ion battery electro-chemical test box used for on-site X-ray diffraction analysis Download PDFInfo
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- CN101504378A CN101504378A CNA2008101909251A CN200810190925A CN101504378A CN 101504378 A CN101504378 A CN 101504378A CN A2008101909251 A CNA2008101909251 A CN A2008101909251A CN 200810190925 A CN200810190925 A CN 200810190925A CN 101504378 A CN101504378 A CN 101504378A
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Abstract
The invention relates to a lithium ion battery electrochemical test box for field X-ray diffraction analysis, which mainly comprises a working chamber cover plate and a main body of the test box, wherein the packaging of the working chamber cover plate and the box body is realized by screws, the working chamber cover plate is provided with an X-ray window with the area equivalent to that of an X-ray diffraction incidence beam, the inside of the main body of the test box is provided with a working chamber of which one end is provided with an opening, the area of the opening is equivalent to that of the X-ray diffraction incidence beam; and a gasket is placed on the bottom of the main body of the test box, the bottom of the main body of the test box is provided with a through hole for an electrode post to insert, a sealing ring is placed in the middle of the hole, the upper part of the electrode post is provided with an electrode post bracket, the electrode post bracket and the box body are riveted by riveting screws, the electrode post support moves up and down under the action of external pressure to push the gasket to move up and down within certain spacial range; and the working chamber cover plate is connected with an external circuit through a conductive fixture. The test box has the advantages that the test box has low cost and simple operation, can be assembled and used in the glove box, and is suitable for various small laboratories.
Description
Technical field
The present invention relates to a kind of lithium-ion battery system proving installation, specifically relate to realize the electro-chemical test box of the lithium ion battery simulated battery of the all-sealed structure that on-the-spot X-ray analysis electrode microstructure changes.
Background technology
In recent years, along with the depletion of earth resources and the enhancing of social enviroment protection consciousness, green clean energy resource has become the important directions in energy storage and Conversion of energy field.Electrochmical power source has become necessary part in production and the life as basic energy reserve and reforming unit, and is especially in today of portable electric appts high speed development, more and more to the demand of chargeable Green Chemistry power supply.Secondary cells such as more traditional NI-G, plumbic acid, lithium ion battery have characteristics such as its high-energy-density, long-life and environmentally safe, have been widely used as the electrical source of power of portable electric appts at present.For the further light weight miniaturization development of satisfying electronic equipment and the electric automobile widespread demand to the large-capacity high-power electrochmical power source, the new lithium ion battery electrode material system of exploitation and research becomes the focus in Study on Li-ion batteries using field unavoidablely.The electrochemical characteristic of further investigation novel electrode material, the essence of destructing electrode process has become requisite link of exploitation new material undoubtedly.The structural transformation feature of electrode material in charge and discharge process is the key factor that influences chemical property, and how effectively and accurately structural change is characterized is a difficult problem in the electrode material research process.
X-x ray diffraction X-Ray Diffraction is analytical test means commonly used such as the crystal structure, phase composition of research material.In the research of electrode material, X-x ray diffraction is the composition that characterizes electrode material, and the important research method of the crystalline structure variation of material under different removal lithium embedded states.But because general X-x ray diffractometer x itself does not have galvanochemistry on-the-spot test assembly, and lithium ion battery must could operate as normal in the environment of anhydrous, anaerobic.The chemical property of the material of different removal lithium embedded states is very active, and the structural stability of galvanochemistry removal lithium embedded product in atmospheric environment of its electrode is not good.This is information gatherings such as material structure sign in the electrochemical process, crystalline state transformation and has brought difficulty.Therefore, usually, for this class testing, many researchists have to take intermittently stop electro-chemical test, take out the method that electrode material carries out non-at-scene test separately and carry out structural characterization.In addition, this non-at-scene method must adopt a plurality of samples repeatedly to test, the information that the difference collection structure changes, and this obviously can cause certain deviation.
Summary of the invention
The object of the present invention is to provide and a kind ofly can realize on-the-spot X-x ray diffraction analysis x electrode microstructure lithium ion battery electro-chemical test box that change, all-sealed structure.This is a kind of battery case of simulated battery.This electro-chemical test box is an all-sealed structure, and the Experimental cell conversion zone occurs in the cavity of sealing, links to each other with external circuit by metallic conductor, to carry out electrochemical reaction.This electro-chemical test box has the X ray incidence window, by this window, can realize that simulated battery carries out the X-ray diffraction on-the site analysis in electrochemical reaction process, thereby the essential characteristic of structural transformation in the announcement electrochemical reaction process, for the approach that further investigation electrode material, announcement electrochemical process essence provide science to test, more research and develop new material simple and effective householder method is provided.
Technical scheme of the present invention is: the lithium ion battery electro-chemical test box that is used for on-the-spot X-x ray diffraction analysis x, this testing cassete mainly comprises working chamber cover plate and testing cassete main body, the working chamber cover plate is realized encapsulation by screw and box body, have an X ray form suitable on the working chamber cover plate with X-ray diffraction incident beam area, the testing cassete body interior is provided with the working chamber of an end opening, and is suitable with the area of X-ray diffraction incident beam; Pad is inserted in bottom in the testing cassete main body, the testing cassete bottom part body has the perforation duct that power supply utmost point pole inserts, O-ring seal is inserted at the middle part, duct, make to contact between working chamber and the electrode pole closely, realize tightly encapsulation, electrode pole top is provided with the pole holder, between pole holder and the box body by riveted screw riveted, the electrode pole moves up and down by the effect of external pressure, promotes pad and moves up and down in certain spatial dimension, and the working chamber cover plate links to each other by conductive fixture with external circuit.The testing cassete main body is a polytetrafluoroethylmaterial material, and electrode pole and pad are stainless steel.
The invention has the beneficial effects as follows: operate very simply, cost is low, not only can be used as common simulated battery testing cassete, also can be as the X-ray diffraction on-the site analysis in the electro-chemical test process.The cavity in box body internal electrical chemical reaction zone has flexible controllability, is applicable to that the pole piece of various different-thickness carries out electro-chemical test and on-the-spot X-ray diffraction analysis.
Description of drawings
The present invention is described in detail with embodiment in conjunction with the accompanying drawings for face.
Fig. 1 is a section assembling synoptic diagram of the present invention
Fig. 2 is an one-piece construction perspective diagram of the present invention
Among the figure: 1, working chamber cover plate, 2, the testing cassete main body, 3, screw, 4, O-ring seal, 5, the pole holder, 6, the riveted screw, 7, the electrode pole, 8, pad.
Embodiment
The present invention mainly comprises working chamber cover plate 1 and testing cassete main body 2, working chamber cover plate 1 is realized encapsulation by four screws 3 and box body, have an X ray form suitable on the working chamber cover plate 1, can shine to greatest extent on the electrode plane that needs test with the energy that guarantees X ray with X-ray diffraction incident beam area.Because it is simple as much as possible and practical that the assembly of box body needs, this cover plate adopts stainless steel, by with the tight purpose that reaches afflux that contacts of survey pole piece.Therefore, another effect of this cover plate is the collector of working electrode, can link to each other by conductive fixture with external circuit.Testing cassete main body 2 is a rectangular structure, and inside is provided with the working chamber of an end opening, and is suitable with the area of X-ray diffraction incident beam; Insert pad 8 in the bottom of testing cassete main body 2, pad 8 plays a part collector, in addition also as the support pad of regulating cavity chamber volume.During electro-chemical test, work pole piece, barrier film, electrode plates is stacked gradually on pad 8, and inside cavity is full of electrolytic solution.Testing cassete main body 2 bottoms have the perforation duct that power supply utmost point pole 7 inserts, O-ring seal 4 is inserted at duct middle part, makes between working chamber 2 and the electrode pole 7 contact closely, and realization tightly encapsulates, convenient for what process, electrode pole 7 tops are provided with pole holder 5 with the fixing locus of pole.Between pole holder 5 and the box body by riveted screw 6 riveteds, electrode pole 7 can move up and down by the effect of external pressure, promote pad 8 and in certain spatial dimension, move up and down, reaching the tight assembling between each assembly of simulated battery, thereby electrochemical reaction is carried out smoothly.Testing cassete main body 2 is a polytetrafluoroethylmaterial material, and electrode pole 7 and pad 8 are stainless steel.
Claims (3)
1, the lithium ion battery electro-chemical test box that is used for on-the-spot X-x ray diffraction analysis x, it is characterized in that, this testing cassete mainly comprises working chamber cover plate (1) and testing cassete main body (2), working chamber cover plate (1) is realized encapsulation by four screws (3) and box body, have an X ray form suitable with X-ray diffraction incident beam area on the working chamber cover plate (1), testing cassete main body (2) inside is provided with the working chamber of an end opening, and is suitable with the area of X-ray diffraction incident beam; Insert pad (8) in the bottom of testing cassete main body (2), testing cassete main body (2) bottom has the perforation duct that power supply utmost point pole (7) inserts, O-ring seal (4) is inserted at the middle part, duct, electrode pole (7) top is provided with pole holder (5), go out riveted screw (6) riveted between pole holder (5) and the box body, working chamber cover plate (1) links to each other by conductive fixture with external circuit.
2, the lithium ion battery electro-chemical test box that is used for on-the-spot X-x ray diffraction analysis x according to claim 1 is characterized in that described testing cassete main body (2) is a polytetrafluoroethylmaterial material.
3, the lithium ion battery electro-chemical test box that is used for on-the-spot X-x ray diffraction analysis x according to claim 1 is characterized in that, described electrode pole (7) and pad (8) are stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101909251A CN101504378A (en) | 2008-12-30 | 2008-12-30 | Lithium ion battery electro-chemical test box used for on-site X-ray diffraction analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101909251A CN101504378A (en) | 2008-12-30 | 2008-12-30 | Lithium ion battery electro-chemical test box used for on-site X-ray diffraction analysis |
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| Publication Number | Publication Date |
|---|---|
| CN101504378A true CN101504378A (en) | 2009-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101909251A Pending CN101504378A (en) | 2008-12-30 | 2008-12-30 | Lithium ion battery electro-chemical test box used for on-site X-ray diffraction analysis |
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| CN (1) | CN101504378A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995009A (en) * | 2014-05-06 | 2014-08-20 | 黄冈师范学院 | Scanning electron microscope dedicated battery test sealing box |
| CN105319230A (en) * | 2015-12-10 | 2016-02-10 | 黄冈师范学院 | In-situ XRD battery test sealing box |
| CN113009355A (en) * | 2021-02-10 | 2021-06-22 | 北京理工大学 | Method for representing microstructure evolution of battery pole piece in real environment of whole life cycle |
-
2008
- 2008-12-30 CN CNA2008101909251A patent/CN101504378A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995009A (en) * | 2014-05-06 | 2014-08-20 | 黄冈师范学院 | Scanning electron microscope dedicated battery test sealing box |
| CN105319230A (en) * | 2015-12-10 | 2016-02-10 | 黄冈师范学院 | In-situ XRD battery test sealing box |
| CN113009355A (en) * | 2021-02-10 | 2021-06-22 | 北京理工大学 | Method for representing microstructure evolution of battery pole piece in real environment of whole life cycle |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090812 |