CN105699456A - Three-electrode testing device and three-electrode testing method - Google Patents
Three-electrode testing device and three-electrode testing method Download PDFInfo
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- CN105699456A CN105699456A CN201610196574.XA CN201610196574A CN105699456A CN 105699456 A CN105699456 A CN 105699456A CN 201610196574 A CN201610196574 A CN 201610196574A CN 105699456 A CN105699456 A CN 105699456A
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- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
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Abstract
The invention discloses a three-electrode testing device and a three-electrode testing method. The three-electrode testing device comprises a main body part, three electrode bolts, three electrode connecting posts and three electrodes, wherein a T-shaped through hole is formed on the main body part, adjusting structures are arranged at three ends of the T-shaped through hole respectively, and the three electrode bolts are screwed into the T-shaped through hole through three ends of the T-shaped through hole by the adjusting structures respectively; the three electrode connecting posts are fixed in three electrode bolts in a penetrating manner and define first end surfaces respectively, the first end surface is an end surface where three electrode connecting posts are located in the T-shaped through hole respectively; the three electrodes are fixedly connected with the first end surfaces of three electrode connecting posts respectively, and the relative distance between the three electrodes can be controlled by rotating adjustment of the relative distance between the three electrode bolts. According to the three-electrode testing device and the three-electrode testing method, the technical problem that the three-electrode testing device in the prior art has large testing error is solved and technical effect of improving the accuracy of the testing result is achieved.
Description
Technical field
The present invention relates to technical field of measurement and test, particularly relate to a kind of three electrode testing devices and method。
Background technology
Along with the development of new material, the Electrochemical Properties of new material is also on the increase。Owing to three electrode test technology can measure electric current and current potential simultaneously, and certainty of measurement is also significantly high, therefore three electrode test technology are as one important aspect of electro-chemical test, are subject to every field researcher and pay close attention to widely。
About three electrode test technology, existing researcher is test inside beaker mostly, this appearance resulting in many problems all can cause the error of test result, the effective area of such as electrode is too little, each interelectrode relative position cannot regulate, the problems such as range estimation cannot accurately be known, test environment is uncontrollable can only be leaned in position between electrode。
It is to say, there is the technical problem that test error is bigger in three electrode testing devices of the prior art。
Summary of the invention
The present invention, by providing a kind of three electrode testing devices and method, solves three electrode testing devices of the prior art and there is the technical problem that test error is bigger。
On the one hand, the embodiment of the present application provides following technical scheme:
A kind of three electrode testing devices, described device includes:
Main part, described main part offers T-shaped through hole；Three ends of described T-shaped through hole are provided with adjustment structure；
Three electrode bolts, by described adjustment structure, screw in described T-shaped through hole from three ends of described T-shaped through hole respectively；
Three electrode joint pins, wear respectively and are fixed in described three electrode bolts, and described three electrode joint pins define one first end face respectively, and described first end face is that described three electrode joint pins lay respectively at the end face in described T-shaped through hole；
Three electrodes, fix with the first end face of described three electrode joint pins respectively and are connected, and make described three interelectrode relative distances can pass through to rotate the relative distance regulating described three electrode bolts and control。
Optionally, three ends of described T-shaped through hole are particularly as follows: the first end, the second end and the 3rd end；Described second end is relative with described 3rd end；Described first end is relative with the inwall of described T-shaped through hole, for injecting electrolyte to be detected。
Optionally, the clear size of opening of described first end of described T-shaped through hole is more than the size of the solid electrolyte that need to test。
Optionally, described device also includes: guard block, is arranged at the one end being fixed with described electrode on described electrode joint pin。
Optionally, the outer surface of described electrode bolts offers endless groove；Described endless groove is embedded is cased with sealed loop。
Optionally, described three electrodes are pellet electrode。
Optionally, described device also includes: block, and described block is bolted on the outer surface of described main part；Described block laminating is set in described electrode bolts, with the port with T-shaped through hole described in described electrode bolts fitted seal。
On the other hand, it is provided that a kind of three electrode test methods, described method is applied to three electrode testing devices described in one side, and described method includes:
Screw out the electrode bolts of the first end being positioned at described T-shaped through hole；Described first end is relative with the inwall of described T-shaped through hole；
Electrolyte is injected from described first end；
Described electrode bolts is screwed in described first end；
Rotate the relative distance regulating described three electrode bolts, drive the relative distance controlled between described three electrodes to preset value, and make described three electrode slices all with described electrolyte contact；
Carry out three electrode tests。
The one or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage:
1, the device and method that the embodiment of the present application provides, main part arranges T-shaped through hole, and electrode bolts is set electrode joint pin is screwed in is fixed on three ends of described T-shaped through hole, to realize can passing through to rotate the relative distance regulating described three electrode bolts, drive the relative distance between described three electrodes controlling to be connected with described three electrode joint pins, to improve the accuracy of test result。
2, the device and method that the embodiment of the present application provides, the electrode slice of the fixing lamellar of end face at electrode joint pin, during to increase test, electrode and electrolytical contact area, improve test result accuracy。
3, the device and method that the embodiment of the present application provides, is added the electrolyte that need to test, improves safety and the convenience of test by through hole；Again through electrode bolts, the assembling of electrode joint pin, the cavity forming relative closure at main part houses electrolyte, reduces the impact of external environment, improves the accuracy of test result。
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided。
Fig. 1 is the structure chart of three electrode testing devices in the embodiment of the present application；
Fig. 2 is the profile of three electrode testing devices in the embodiment of the present application；
Fig. 3 is the flow chart of three electrode test methods in the embodiment of the present application。
Detailed description of the invention
The embodiment of the present application, by providing a kind of three electrode testing devices and method, solves three electrode testing devices of the prior art and there is the technical problem that test error is bigger。Achieve the technique effect of the accuracy improving test result。
For solving above-mentioned technical problem, the general thought of the embodiment of the present application offer technical scheme is as follows:
The application provides a kind of three electrode testing devices, including:
Main part, described main part offers T-shaped through hole；Three ends of described T-shaped through hole are provided with adjustment structure；
Three electrode bolts, by described adjustment structure, screw in described T-shaped through hole from three ends of described T-shaped through hole respectively；
Three electrode joint pins, wear respectively and are fixed in described three electrode bolts, and described three electrode joint pins define one first end face respectively, and described first end face is that described three electrode joint pins lay respectively at the end face in described T-shaped through hole；
Three electrodes, fix with the first end face of described three electrode joint pins respectively and are connected, and make described three interelectrode relative distances can pass through to rotate the relative distance regulating described three electrode bolts and control。
Be can be seen that by foregoing, main part arranges T-shaped through hole, and electrode bolts is set electrode joint pin is screwed in is fixed on three ends of described T-shaped through hole, to realize can passing through to rotate the relative distance regulating described three electrode bolts, drive the relative distance between described three electrodes controlling to be connected with described three electrode joint pins, to improve the accuracy of test result。
In order to be better understood from technique scheme, below in conjunction with Figure of description and specific embodiment, technique scheme is described in detail, the specific features being to be understood that in the embodiment of the present invention and embodiment is the detailed description to technical scheme, rather than the restriction to technical scheme, when not conflicting, the embodiment of the present application and the technical characteristic in embodiment can be mutually combined。
Embodiment one
In the present embodiment, it is provided that a kind of three electrode testing devices, refer to Fig. 1 and Fig. 2, Fig. 1 is the structure chart of three electrode testing devices in the embodiment of the present application, Fig. 2 is the profile of three electrode testing devices in the embodiment of the present application, and as depicted in figs. 1 and 2, described device includes:
Main part 101, described main part 101 offers T-shaped through hole 102；Three ends of described T-shaped through hole 102 are provided with adjustment structure 103；
Three electrode bolts 104, by described adjustment structure 103, screw in described T-shaped through hole 102 from three ends of described T-shaped through hole 102 respectively；
Three electrode joint pins 105, wear respectively and are fixed in described three electrode bolts 104, and described three electrode joint pins 105 define one first end face respectively, and described first end face is that described three electrode joint pins 105 lay respectively at the end face in described T-shaped through hole 102；
Three electrodes 106, fix with the first end face of described three electrode joint pins 105 respectively and are connected, and make the relative distance between described three electrodes 106 can pass through to rotate the relative distance regulating described three electrode bolts 104 and control。
Specifically, after injecting electrolyte from the first end 1021 of described T-shaped through hole 102, by rotating the relative distance regulating described three electrode bolts 104, drive the relative distance regulated between described three electrode joint pins 105, thus realizing when described electrolyte is carried out three electrode tests, control the relative distance between described three electrodes 106。
In specific implementation process, described electrolyte can be: electrolyte, solid electrolyte or gel state electrolyte, does not limit at this。
In specific implementation process, the material of described main part 101 can be politef material, does not limit at this。
In specific implementation process, described adjustment structure is specially helicitic texture or bayonet arrangement, and this is not restricted。
Below, the structure of described three electrode testing devices is discussed in detail。
In the embodiment of the present application, three ends of described T-shaped through hole 102 are particularly as follows: described first end the 1021, second end and the 3rd end；Described second end is relative with described 3rd end；Described first end 1021 is relative with the inwall of described T-shaped through hole, for injecting electrolyte to be detected。
Further, the through-hole diameter of described first end 1021 of described T-shaped through hole 102 is more than preset value, in order to put into solid electrolyte。
Specifically, the device that the application provides may be used for conventional lithium ion battery, gel electrolyte battery and all-solid-state battery etc., therefore uses scope more extensive。
In the embodiment of the present application, as shown in Figure 1, it is embedded in three electrodes corresponding to described three electrode joint pins 105 in described three electrode bolts 104 particularly as follows: Electrode 201, auxiliary electrode 202 and reference electrode 203, described Electrode 201 and auxiliary electrode 202 insert from described second end of described T-shaped through hole 102 and described 3rd end respectively, and described reference electrode 203 inserts from described first end 1021。
In specific implementation process, can research electrode 201 or auxiliary electrode 202 rotation fixed motionless, the distance that degree controls between electrode is screwed in by regulating other electrode, the occurrence of described distance can be known by screw-in degree, certainly, yardstick mark can also be set in electrode bolts 104, assist in the distance between electrode, do not limit at this。
In the embodiment of the present application, described device also includes:
Guard block 107, is arranged at the one end being fixed with described electrode 106 on described electrode joint pin 105, to reduce the physical damage to described electrode 106。
In the embodiment of the present application, described electrode 106 is pellet electrode。
Specifically, the electrode slice of the fixing lamellar of end face at electrode joint pin, electrode and electrolytical contact area during test can be increased; improve test result accuracy; but pellet electrode is easy to wear, therefore increases guard block 107 and can extend the service life of electrode slice 106, improve reliability。
Further, described guard block 107 is arranged at the electrode 106 of auxiliary electrode 202 correspondence and the connecting portion of electrode joint pin 105。
In the embodiment of the present application, the outer surface of described electrode bolts 104 offers endless groove；Described endless groove is embedded is cased with sealed loop 108。
In specific implementation process, as it is shown in figure 1, each described electrode bolts 104 can arrange multiple sealed loop 108, to strengthen the sealing in space in main part 101, reduce outer bound pair and test electrolytical impact, improve test accuracy。
In the embodiment of the present application, described device also includes:
Block 109, described block 109 is bolted on the outer surface of described main part 101；Described block 109 laminating is set in described electrode bolts 104, with the port with T-shaped through hole described in described electrode bolts 104 fitted seal。
Specifically, the sealing in space in main part 101 can be strengthened further by described block 109, reduce outer bound pair and test electrolytical impact, improve test accuracy。Additionally, in the three-electrode system of lithium battery, electrolyte is often multiple organic solvent, readily volatilized, flammable, corrosion and toxic, therefore arrange available bolt close the first end 1021 as entrance, and provide sealing ring 108 and block 109 to strengthen sealing, it is possible to improve test and add electrolytical convenience, and improve Security of test。
Based on same inventive concept, the method that present invention also provides embodiment one correspondence, detailed in Example two。
Embodiment two
Providing a kind of three electrode test methods in the present embodiment, described method is applied to three electrode testing devices described in embodiment one, as it is shown on figure 3, described method includes:
Step S301, screws out the electrode bolts of the first end being positioned at described T-shaped through hole；Described first end is relative with the inwall of described T-shaped through hole；
Step S302, injects electrolyte from described first end；
Step S303, screws in described first end by described electrode bolts；
Step S304, rotates the relative distance regulating described three electrode bolts, drives the relative distance controlled between described three electrode slices to preset value, and make described three electrodes all with described electrolyte contact；
Step S305, carries out three electrode tests。
Illustrate that the present embodiment provides the detailed description of the invention of method for gel electrolyte below:
First, Electrode 201 and auxiliary electrode 202 are screwed in described second end of described T-shaped through hole 102 and described 3rd end respectively through electrode bolts 104, corresponding electrode joint pin 105 and electrode slice 106 to be extend into the cavity inside of main part 101；
Rotation electrode bolt 104 is to correct position, to control the distance determining Electrode 201 with auxiliary electrode 202；
Passage again through the first end 1021 of reference electrode 203 correspondence injects quantitative gel electrolyte, fills inside body cavity。
The electrode joint pin 105 of reference electrode 203 correspondence and electrode slice 106 are inserted passage, and the electrode slice 106 of reference electrode is extend into cavity inside, after contacting with gel electrolyte, fixed electrode fixture spiral shell electrode bolts 104, thus completing the assembling of simulation three electrode lithium ion battery three-electrode systems；
Carry out the test of electrochemistry three-electrode system。
In view of the structure of described three electrode testing devices having been done detailed description in embodiment one, so those skilled in the art can according to the method being apparent from the present embodiment described above, succinct for description, just repeat no more at this。
Technical scheme in above-mentioned the embodiment of the present application, at least has the following technical effect that or advantage:
1, the device and method that the embodiment of the present application provides, main part arranges T-shaped through hole, and electrode bolts is set electrode joint pin is screwed in is fixed on three ends of described T-shaped through hole, to realize can passing through to rotate the relative distance regulating described three electrode bolts, drive the relative distance between described three electrodes controlling to be connected with described three electrode joint pins, to improve the accuracy of test result。
2, the device and method that the embodiment of the present application provides, the electrode slice of the fixing lamellar of end face at electrode joint pin, during to increase test, electrode and electrolytical contact area, improve test result accuracy。
3, the device and method that the embodiment of the present application provides, is added the electrolyte that need to test, improves safety and the convenience of test by through hole；Again through electrode bolts, the assembling of electrode joint pin, the cavity forming relative closure at main part houses electrolyte, reduces the impact of external environment, improves the accuracy of test result。
Although preferred embodiments of the present invention have been described, but those skilled in the art are once know basic creative concept, then these embodiments can be made other change and amendment。So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention。
Obviously, the present invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art。So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification。
Claims (8)
1. an electrode testing device, it is characterised in that described device includes:
Main part, described main part offers T-shaped through hole；Three ends of described T-shaped through hole are provided with adjustment structure；
Three electrode bolts, by described adjustment structure, screw in described T-shaped through hole from three ends of described T-shaped through hole respectively；
Three electrode joint pins, wear respectively and are fixed in described three electrode bolts, and described three electrode joint pins define one first end face respectively, and described first end face is that described three electrode joint pins lay respectively at the end face in described T-shaped through hole；
Three electrodes, fix with the first end face of described three electrode joint pins respectively and are connected, and make described three interelectrode relative distances can pass through to rotate the relative distance regulating described three electrode bolts and control。
2. device as claimed in claim 1, it is characterised in that three ends of described T-shaped through hole are particularly as follows: the first end, the second end and the 3rd end；Described second end is relative with described 3rd end；Described first end is relative with the inwall of described T-shaped through hole, for injecting electrolyte to be detected。
3. device as claimed in claim 2, it is characterised in that the clear size of opening of described first end of described T-shaped through hole is more than the size of the solid electrolyte that need to test。
4. device as claimed in claim 1, it is characterised in that also include:
Guard block, is arranged at the one end being fixed with described electrode on described electrode joint pin。
5. device as claimed in claim 1, it is characterised in that offer endless groove on the outer surface of described electrode bolts；Described endless groove is embedded is cased with sealed loop。
6. device as claimed in claim 1, it is characterised in that described three electrodes are pellet electrode。
7. the device as described in as arbitrary in claim 1-6, it is characterised in that also include:
Block, described block is bolted on the outer surface of described main part；Described block laminating is set in described electrode bolts, with the port with T-shaped through hole described in described electrode bolts fitted seal。
8. an electrode test method, it is characterised in that described method is applied to the arbitrary three described electrode testing devices of claim 1-7, and described method includes:
Screw out the electrode bolts of the first end being positioned at described T-shaped through hole；Described first end is relative with the inwall of described T-shaped through hole；
Electrolyte is injected from described first end；
Described electrode bolts is screwed in described first end；
Rotate the relative distance regulating described three electrode bolts, drive the relative distance controlled between described three electrodes to preset value, and make described three electrode slices all with described electrolyte contact；
Carry out three electrode tests。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610196574.XA CN105699456A (en) | 2016-03-31 | 2016-03-31 | Three-electrode testing device and three-electrode testing method |
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| CN201610196574.XA CN105699456A (en) | 2016-03-31 | 2016-03-31 | Three-electrode testing device and three-electrode testing method |
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Cited By (2)
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| CN110398690A (en) * | 2018-04-20 | 2019-11-01 | 昆明新能源汽车工程技术中心有限公司 | Three electrode testing devices |
| CN111929351A (en) * | 2020-09-14 | 2020-11-13 | 昆明云大新能源有限公司 | Double-sealing type multifunctional electrochemical testing device and assembling and using method thereof |
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