CN218350106U - Auxiliary device for testing viscosity of electrolyte - Google Patents
Auxiliary device for testing viscosity of electrolyte Download PDFInfo
- Publication number
- CN218350106U CN218350106U CN202221864028.6U CN202221864028U CN218350106U CN 218350106 U CN218350106 U CN 218350106U CN 202221864028 U CN202221864028 U CN 202221864028U CN 218350106 U CN218350106 U CN 218350106U
- Authority
- CN
- China
- Prior art keywords
- electrolyte
- connecting wall
- laser
- viscosity
- screw
- 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
Images
Classifications
-
- 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
Abstract
The utility model discloses an auxiliary device for testing the viscosity of electrolyte, which comprises a chassis, a signal acquisition card and a display screen; the top of the base plate is provided with a sample cell and a laser; the laser is positioned right in front of the sample cell; the sample cell comprises a lower housing; the top of the lower shell is hermetically covered with an upper cover plate; the left side wall and the right side wall of the lower shell are respectively a positive connecting wall and a negative connecting wall; the positive connecting wall and the negative connecting wall are respectively connected with a battery positive pole piece and a battery negative pole piece; the bottom of the lower shell is a transparent glass sheet bottom plate; electrolyte is injected into the inner cavity of the lower shell; adding fluorescent quantum dots into the electrolyte; the laser is used for injecting laser from the bottom plate of the glass sheet; the signal acquisition card is connected with the display screen. The utility model discloses can be at the charge-discharge cycle in-process of electrolyte, through the diffusion coefficient variation condition that detects the fluorescence quantum dot in the electrolyte, supplementary researcher detects the variation condition of electrolyte viscosity fast, guides the researcher to improve the electrolyte performance.
Description
Technical Field
The utility model relates to a lithium ion battery tests technical field, especially relates to an auxiliary device for testing electrolyte viscosity.
Background
At present, lithium ion batteries have the advantages of high specific energy, many recycling times, long storage time and the like, and are widely applied to various aspects of life, including mobile phones, computers, digital cameras, electric automobiles and the like, so that the performance requirements on the lithium ion batteries are higher and higher.
The electrolyte is a key material of the lithium ion battery, and plays a role in conducting electrons between the positive electrode and the negative electrode in the battery. Along with the increase of the cycle number (namely the cycle use number) of the battery, the electrolyte is continuously consumed, the viscosity of the electrolyte is changed along with the consumption of the electrolyte, and the electrical property of the whole battery is gradually changed.
In view of the influence of the number of charge and discharge cycles (i.e., the number of cycles) of the battery on the viscosity of the electrolyte. However, there is no technology at present, which can detect the change condition of the viscosity of the electrolyte (for example, the change condition under different charge-discharge cycle turns) in real time during the charge-discharge cycle of the electrolyte, so as to guide researchers to improve the electrolyte performance in a targeted manner, thereby improving the overall electrical performance of the lithium battery.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an auxiliary device for testing electrolyte viscosity to the technical defect that prior art exists.
Therefore, the utility model provides an auxiliary device for testing the viscosity of the electrolyte, which comprises a chassis, a sample cell, a laser, a signal acquisition card and a display screen;
the top of the chassis which is horizontally distributed is provided with a sample cell and a laser;
the laser is positioned right in front of the sample cell;
the sample cell comprises a hollow lower shell with an opening at the top;
the top of the lower shell is hermetically covered with a transparent upper cover plate;
the left side wall and the right side wall of the lower shell are respectively a positive electrode connecting wall and a negative electrode connecting wall;
the positive electrode connecting wall and the negative electrode connecting wall are respectively connected with a battery positive electrode piece and a battery negative electrode piece;
the bottom of the lower shell is a transparent glass sheet bottom plate;
the top of the upper cover plate is provided with a liquid injection hole;
electrolyte with a preset volume is injected into the inner cavity of the lower shell in advance;
fluorescent quantum dots are added into the electrolyte;
the laser is used for emitting laser, and the laser is injected from a glass sheet bottom plate at the bottom of the sample cell so as to be injected into the electrolyte;
the top of the chassis is provided with a signal acquisition card and a display screen;
and the signal acquisition card is connected with the display screen and is used for acquiring the diffusion coefficient of the fluorescent quantum dots in the electrolyte in the sample cell in real time and sending the diffusion coefficient to the display screen for display.
Preferably, the top of the chassis is arranged right behind the sample cell and provided with a signal acquisition card;
the top of the base plate is arranged on the right side of the sample pool and is provided with a display screen.
Preferably, the laser outlet at the rear end of the laser is positioned right below the bottom plate of the glass sheet.
Preferably, the laser is a continuous laser generator or a femtosecond pulse laser generator.
Preferably, the wavelength of the laser light emitted by the laser is matched with the excitation wavelength of the fluorescent quantum dots in the electrolyte.
Preferably, the concentration of the fluorescent quantum dots in the electrolyte is 10 -8 mol/L。
Preferably, the whole of the positive electrode connecting wall is an aluminum block, or a part of the positive electrode connecting wall is provided with the aluminum block;
the whole negative electrode connecting wall is a copper block, or the part of the negative electrode connecting wall is provided with the copper block.
Preferably, the four corners of the upper cover plate are respectively connected with the four corners of the top of the lower shell through a screw;
the four corners of the upper cover plate are respectively provided with a reserved first threaded hole;
the four corners of the top of the lower shell are respectively provided with a reserved second threaded hole;
each screw passes through the first threaded hole from top to bottom and then is connected with the second threaded hole.
Preferably, when the whole of the positive connecting wall is an aluminum block and the whole of the negative connecting wall is a copper block, the front end and the rear end of the top of the positive connecting wall and the front end and the rear end of the top of the negative connecting wall are respectively provided with a second threaded hole;
two second threaded holes at the top of the positive connecting wall are respectively connected with a first threaded hole at the corresponding position of the upper cover plate through a screw, a battery positive pole piece is clamped between one screw and the top of the positive connecting wall, one end of the battery positive pole piece is provided with a first screw through hole, and the screw penetrates through the first screw through hole;
two second screw holes at the top of the negative connecting wall are respectively connected with the first screw holes at the corresponding positions of the upper cover plate through a screw, a battery negative pole piece is clamped between one screw and the top of the negative connecting wall, a second screw through hole is formed in one end of the battery negative pole piece, and the screw penetrates through the second screw through hole.
Preferably, the thickness of the glass sheet base plate is 50 to 170 micrometers;
the thickness of the positive electrode connecting wall and the negative electrode connecting wall is 5-10 mm.
By above the utility model provides a technical scheme is visible, compare with prior art, the utility model provides an auxiliary device for testing electrolyte viscosity, its design science can be at the charge-discharge cycle in-process of electrolyte, through the diffusion coefficient variation condition that detects the fluorescence quantum dot in the electrolyte, supplementary researcher detects the variation condition (for example the variation condition under the different charge-discharge cycle number of turns) of electrolyte viscosity fast to guide the researcher to improve the electrolyte performance with pertinence, and then promote the whole electrical property of lithium cell, great practical significance has.
The utility model discloses a device for the diffusion coefficient variation through the fluorescence quantum dot in the detection electrolyte, the viscosity of electrolyte under different battery cycle number of turns is evaluated in help changes. Under different cycle numbers, the electrolyte can generate side reaction with the positive and negative pole pieces, lithium salt and additives in the electrolyte are consumed, the components of the electrolyte body are changed, the understanding of researchers on the participation of the electrolyte in electrochemical reaction can be promoted by detecting the viscosity of the electrolyte in real time, and the formula of the electrolyte and the performance of the battery are improved conveniently.
Drawings
Fig. 1 is a schematic overall structure diagram of an auxiliary device for testing the viscosity of an electrolyte according to the present invention;
fig. 2 is a schematic structural diagram of a sample cell in an auxiliary device for testing viscosity of an electrolyte provided by the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 and 2, the utility model provides an auxiliary device for testing the viscosity of electrolyte, which comprises a chassis 1, a sample cell 2, a laser 3, a signal acquisition card 4 and a display screen 5;
the top of the chassis 1 which is horizontally distributed is provided with a sample pool 2 and a laser 3;
the laser 3 is positioned right in front of the sample cell 2;
wherein, the sample cell 2 comprises a hollow lower shell 201 with an open top;
a transparent upper cover plate 202 is hermetically covered and arranged on the top of the lower shell 201;
the left and right side walls of the lower case 201 are respectively a positive electrode connecting wall 2011 and a negative electrode connecting wall 2012;
the positive electrode connecting wall 2011 and the negative electrode connecting wall 2012 are respectively connected with a battery positive electrode piece and a battery negative electrode piece;
the bottom of the lower shell 201 is a transparent glass bottom plate 2013;
the top of the upper cover plate 202 is provided with a liquid injection hole 2020;
electrolyte with a preset volume is injected into the inner cavity of the lower shell 201 in advance;
fluorescent quantum dots are added into the electrolyte;
the laser 3 is used for emitting laser, and the laser is emitted from a glass sheet bottom plate 2013 at the bottom of the sample cell 2, so that the laser is emitted into the electrolyte;
the top of the chassis 1 is provided with a signal acquisition card 4 and a display screen 5;
and the signal acquisition card 4 is connected with the display screen 5 (establishes data communication) and is used for acquiring the diffusion coefficient of the fluorescent quantum dots in the electrolyte in the sample cell 2 in real time and sending the diffusion coefficient to the display screen 5 (such as a liquid crystal display screen or other conventional display modules) for display.
In the utility model, the signal acquisition card 4 is used for acquiring the diffusion coefficient of the quantum dots in the electrolyte in real time and reading the diffusion coefficient in real time through the display screen 5, so that the staff can acquire the diffusion coefficient D of the fluorescent quantum dots in the electrolyte in real time through the display screen; then, the worker can obtain the viscosity eta of the electrolyte according to the existing calculation mode.
The existing calculation method is as follows: substituting the diffusion coefficient D of the fluorescent quantum dots in the electrolyte into the lower Stokes-Einstein equation (namely the Einstein-Stokes equation):
D＝kT/3ηπd；
d is the diffusion coefficient of the fluorescent quantum dots in the electrolyte, k is the Boltzmann constant, T is the absolute temperature, eta is the viscosity of the electrolyte, and D is the hydrodynamic diameter. The viscosity η of the electrolyte can be determined by the above formula.
It should be noted that fluorescence correlation spectroscopy is used for measuring the diffusion coefficient of the fluorescent quantum dots, which is a method for calculating the liquid viscosity by using the diffusion rate of the test fluorescent ions (fluorescent quantum dots) in the laser region. The method is simple and convenient, and can be suitable for testing the viscosity of the electrolyte.
In the utility model, in the concrete implementation, the top of the chassis 1 is arranged right behind the sample cell 2, and a signal acquisition card 4 is arranged;
the top of the base plate 1 is arranged on the right side of the sample pool 2 and is provided with a display screen 5.
In the present invention, in the specific implementation, the laser emitting port at the rear end of the laser 3 is located right below the glass sheet bottom plate 2013 of the sample cell 2;
the laser 3 is used to emit laser light toward the electrolyte in the rear-upper direction.
The utility model discloses in, on specifically realizing, the laser instrument specifically can adopt current continuous laser generator or femto second pulse laser generator.
In particular, the laser emitted by the laser 3 is continuous laser or femtosecond pulse laser;
the wavelength of the continuous laser or the femtosecond pulse laser is matched with (e.g., the same as) the excitation wavelength of the fluorescent quantum dots in the electrolyte.
The utility model discloses in, on specifically realizing, chassis 1's material adopts stainless steel or high aluminum alloy.
In the present invention, it should be noted that the liquid injection hole 2020 is used for injecting the electrolyte and the fluorescent quantum dots (i.e., quantum dots having the fluorescent characteristic) into the inner cavity of the lower housing 201 (i.e., the inner cavity of the sample cell 2). The volume of the electrolyte may be 80% of the volume of the inner cavity of the lower case 201, or other volume ratios required by experimental tests.
It should be noted that, in the present invention, the added fluorescent quantum dots are the existing fluorescent quantum dots that do not react with all the materials (including the electrolyte) on the sample cell 2, such as ZnSe quantum dots, cuInSe quantum dots 2 Quantum dots, and the like.
In the present invention, the concentration of the fluorescent quantum dots in the electrolyte is 10 -8 mol/L。
The utility model discloses in, on specifically realizing, annotate liquid hole 2020 and go up sealing installation and have a sealing plug.
The utility model discloses in, on specifically realizing, the whole of positive pole connecting wall 2011 is the aluminium pig, perhaps, the part of positive pole connecting wall 2011 has the aluminium pig, for example: the positive connecting wall 2011 is a corrosion-resistant plastic block that does not react with the electrolyte, and an aluminum block is hermetically provided on an opening of the positive connecting wall.
Specifically, when the anode connecting wall 2011 has an aluminum block locally, the aluminum block faces one side of the electrolyte direction and is in direct contact with the electrolyte;
the side of the aluminum block, which is far away from the electrolyte, is in conductive connection with the positive pole piece of the battery.
The utility model discloses in, specifically realize last, the whole of negative pole connective wall 2012 is the copper billet, perhaps, the part of negative pole connective wall 2012 has the copper billet, for example: the negative connecting wall 2012 is a corrosion-resistant plastic block that does not react with the electrolyte, and a copper block is hermetically disposed on an opening of the plastic block.
Specifically, when the local part of the negative electrode connecting wall 2012 has the copper block, the copper block faces one side of the electrolyte direction and is in direct contact with the electrolyte;
the copper block is away from one side of the electrolyte and is in conductive connection with the negative pole piece of the battery.
In the present invention, in the specific implementation, the four corners of the upper cover plate 202 are respectively connected to the four corners of the top of the lower housing 201 through a screw 203;
in specific implementation, the four corners of the upper cover plate 202 are respectively provided with a reserved first threaded hole;
four corners at the top of the lower casing 201 are respectively provided with a reserved second threaded hole;
each screw 203 passes through the first threaded hole from top to bottom and then is connected with the second threaded hole.
In the present invention, in a specific implementation, when the whole of the positive connecting wall 2011 is an aluminum block and the whole of the negative connecting wall 2012 is a copper block, the front and rear ends of the top of the positive connecting wall 2011 and the front and rear ends of the top of the negative connecting wall 2012 are respectively provided with a second threaded hole;
two second threaded holes at the top of the positive electrode connecting wall 2011 are respectively connected with first threaded holes at corresponding positions of the upper cover plate 202 through a screw 203, a battery positive electrode piece is clamped between one screw 203 and the top of the positive electrode connecting wall 2011, one end of the battery positive electrode piece is provided with a first screw through hole, and the screw 203 penetrates through the first screw through hole;
two second threaded holes at the top of the negative connecting wall 2012 are respectively connected with the first threaded holes at the corresponding positions of the upper cover plate 202 through a screw 203, a battery negative pole piece is clamped between one of the screws 203 and the top of the negative connecting wall 2012, one end of the battery negative pole piece is provided with a second screw through hole, and the screw 203 passes through the second screw through hole;
therefore, based on the above structural design, the positive electrode connecting wall 2011 and the negative electrode connecting wall 2012 are respectively and reliably connected with the battery positive electrode piece and the battery negative electrode piece.
The utility model discloses in, on specifically realizing, battery positive pole piece and battery negative pole piece on positive pole connecting wall 2011 and the negative pole connecting wall 2012 are connected with the anodal port and the negative pole port of current battery charge and discharge instrument respectively for charge and discharge circulates through the charge and discharge instrument. The existing battery charging and discharging apparatus may be, for example, a battery charging and discharging device of a CT3002N model manufactured by blue electronic corporation, wuhan city, a positive electrode port and a negative electrode port of the battery charging and discharging device are electrically connected to a positive electrode plate of a battery on the positive electrode connecting wall 2011 and a negative electrode plate of a battery on the negative electrode connecting wall 2012, and the positive electrode and the negative electrode are subjected to charging and discharging cycles through the charging and discharging device. Of course, other existing battery charging and discharging devices can be adopted according to actual needs.
In a particular implementation of the present invention, the glass sheet base plate 2013 is a quartz or glass sheet.
In the specific implementation of the present invention, the glass sheet bottom plate 2013 functions as a light-transmitting sheet, and the thickness thereof is 50 to 170 μm;
the utility model discloses in, on specifically realizing, the thickness of positive pole connecting wall 2011 and negative pole connecting wall 2012 is 5 ~ 10mm.
The utility model discloses in, in the concrete realization, the material of positive pole connecting wall 2011 and negative pole connecting wall 2012 (be promptly as metal positive pole and metal negative pole), is stainless steel or aluminum alloy.
The utility model discloses in, on specifically realizing, signal acquisition card 4, for current signal acquisition card, as long as can gather the diffusion coefficient information of the fluorescence quantum dot in the electrolyte, then transmit to the display screen receive can. The signal acquisition card generally comprises a single photon detector and a data conversion system, and can convert a fluorescence signal into an electric signal to acquire diffusion information in the electrolyte.
The signal acquisition card 4 has the function of single photon detection and conversion, and can convert the acquired fluorescence signal into an electric signal, and obtain the diffusion of the fluorescence quantum dots and the viscosity change information of the electrolyte through internal processing correlation analysis and fitting. The utility model discloses in, the signal acquisition card 4 that adopts is the mature signal acquisition card of prior art, for example can be the IR928 type photon detector of the production of Japan hamamatsu photonics photoelectric semiconductor, can be through the exciting light of collecting fluorescence quantum dot, can accurately collect and change.
It should be noted that the fluorescent quantum dots emit light after being excited by laser light, and the light can penetrate through the transparent upper cover plate 202 and be detected by a nearby signal acquisition card (specifically, an IR928 type photon detector).
The utility model discloses in, on specifically realizing, display screen 5 specifically can adopt LCD for the diffusion information (the diffusion coefficient of fluorescence quantum dot in the electrolyte promptly) that the display signal acquisition card acquireed.
It should be noted that the utility model discloses can utilize sample cell 2's casing, isolate external moisture and oxygen in the charge-discharge cycle in-process to the interference of electrolyte, can utilize non-light tight glass piece bottom plate 2013 simultaneously, will be used for measuring the laser of electrolyte viscosity change and introduce to let the staff can accomplish the real-time detection of electrolyte viscosity.
In order to understand the technical solution of the present invention more clearly, the following describes the operation process of the present invention.
For the real-time test of the viscosity change of the electrolyte in the circulation process, firstly, fixing a battery positive pole piece and a battery negative pole piece (or two lithium pieces) to a positive connecting wall 2011 and a negative connecting wall 2012 respectively to realize conductive connection;
then, an electrolyte is injected into the lower case 201, and fluorescent quantum dots for detecting viscosity of the electrolyte are added to the electrolyte, the concentration of the fluorescent quantum dots being 10 -8 And (5) fixing the upper cover plate by using screws.
Then, incident laser with the wavelength of 532nm is incident into the electrolyte from the transparent glass sheet bottom plate 2013, the fluorescent quantum dots added into the electrolyte are excited, self-diffused signals can be collected by the signal acquisition card, and the signal acquisition card can display the collected diffused signals (namely diffusion coefficient information of the fluorescent quantum dots in the electrolyte) on a display screen in real time, so that a worker can obtain the viscosity of the electrolyte.
To sum up, compare with prior art, the utility model provides a pair of an auxiliary device for testing electrolyte viscosity, its design science can be at the charge-discharge cycle in-process of electrolyte, through the diffusion coefficient variation condition that detects the fluorescence quantum dot in the electrolyte, and the auxiliary research personnel detects the variation condition (for example the variation condition under the different charge-discharge cycle number of turns) of electrolyte viscosity fast to guide the researcher to improve the electrolyte performance pertinence, and then promote the whole electrical property of lithium cell, have great practical meaning.
The utility model discloses a device for the diffusion coefficient variation condition through the fluorescence quantum dot in detecting electrolyte, the help evaluates the viscosity change of electrolyte under different battery cycle numbers. Under different cycle turns, the electrolyte can generate side reaction with the positive and negative pole pieces, lithium salt and additives in the electrolyte are consumed, the components of the electrolyte body are changed, and the understanding of researchers on the participation of the electrolyte in electrochemical reaction can be improved by detecting the viscosity of the electrolyte in real time, so that the formula of the electrolyte is improved, and the performance of the battery is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An auxiliary device for testing the viscosity of electrolyte is characterized by comprising a chassis (1), a sample cell (2), a laser (3), a signal acquisition card (4) and a display screen (5);
the top of the chassis (1) which is horizontally distributed is provided with a sample cell (2) and a laser (3);
the laser (3) is positioned right in front of the sample cell (2);
wherein the sample cell (2) comprises a hollow lower shell (201) with an opening at the top;
the top of the lower shell (201) is hermetically covered with a transparent upper cover plate (202);
the left side wall and the right side wall of the lower shell (201) are respectively a positive electrode connecting wall (2011) and a negative electrode connecting wall (2012);
the positive electrode connecting wall (2011) and the negative electrode connecting wall (2012) are respectively connected with a battery positive electrode piece and a battery negative electrode piece;
the bottom of the lower shell (201) is a transparent glass sheet bottom plate (2013);
the top of the upper cover plate (202) is provided with a liquid injection hole (2020);
electrolyte with a preset volume is injected into the inner cavity of the lower shell (201) in advance;
fluorescent quantum dots are added into the electrolyte;
the laser (3) is used for emitting laser, and the laser is emitted from a glass sheet bottom plate (2013) at the bottom of the sample cell (2) so as to be emitted into the electrolyte;
the top of the chassis (1) is provided with a signal acquisition card (4) and a display screen (5);
and the signal acquisition card (4) is connected with the display screen (5) and is used for acquiring the diffusion coefficient of the fluorescent quantum dots in the electrolyte in the sample cell (2) in real time and sending the diffusion coefficient to the display screen (5) for displaying.
2. The auxiliary device for testing the viscosity of an electrolyte according to claim 1, wherein the top of the chassis (1) is provided with a signal acquisition card (4) at a position right behind the sample cell (2);
the top of the base plate (1) is arranged on the right side of the sample cell (2) and is provided with a display screen (5).
3. The auxiliary device for testing the viscosity of the electrolyte according to claim 1, wherein the laser emitting port at the rear end of the laser (3) is located right below the glass sheet bottom plate (2013).
4. The auxiliary device for testing the viscosity of an electrolyte according to claim 1, wherein the laser is a continuous laser generator or a femtosecond pulse laser generator.
5. The auxiliary device for testing the viscosity of the electrolyte as claimed in claim 1, wherein the laser (3) emits laser light with a wavelength matched with the excitation wavelength of the fluorescent quantum dots in the electrolyte.
6. The assistance apparatus for measuring viscosity of electrolyte according to claim 1, wherein concentration of fluorescent quantum dots in the electrolyte is 10 -8 mol/L。
7. The auxiliary device for testing the viscosity of the electrolyte according to claim 1, wherein the whole of the positive electrode connecting wall (2011) is an aluminum block, or a part of the positive electrode connecting wall (2011) is provided with an aluminum block;
the whole negative connecting wall (2012) is a copper block, or a part of the negative connecting wall (2012) is provided with the copper block.
8. The auxiliary device for testing the viscosity of the electrolyte according to claim 1, wherein the four corners of the upper cover plate (202) are respectively connected with the four corners of the top of the lower casing (201) through a screw (203);
the four corners of the upper cover plate (202) are respectively provided with a reserved first threaded hole;
the four corners of the top of the lower shell (201) are respectively provided with a reserved second threaded hole;
each screw (203) passes through the first threaded hole from top to bottom and then is connected with the second threaded hole.
9. The auxiliary device for testing the viscosity of the electrolyte according to claim 1, wherein when the positive connecting wall (2011) is an aluminum block and the negative connecting wall (2012) is a copper block, the front end and the rear end of the top of the positive connecting wall (2011) and the front end and the rear end of the top of the negative connecting wall (2012) are respectively provided with a second threaded hole;
two second threaded holes in the top of the positive connecting wall (2011) are respectively connected with a first threaded hole in the corresponding position of the upper cover plate (202) through a screw (203), a battery positive pole piece is clamped between one screw (203) and the top of the positive connecting wall (2011), a first screw through hole is formed in one end of the battery positive pole piece, and the screw (203) penetrates through the first screw through hole;
two second threaded holes in the top of the negative connecting wall (2012) are respectively connected with first threaded holes in corresponding positions of the upper cover plate (202) through a screw (203), a battery negative pole piece is clamped between one screw (203) and the top of the negative connecting wall (2012), one end of the battery negative pole piece is provided with a second screw through hole, and the screw (203) penetrates through the second screw through hole.
10. The auxiliary device for testing the viscosity of an electrolyte according to any one of claims 1 to 9, wherein the thickness of the glass sheet bottom plate (2013) is 50-170 μm;
the thickness of the positive electrode connecting wall (2011) and the negative electrode connecting wall (2012) is 5-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221864028.6U CN218350106U (en) | 2022-07-20 | 2022-07-20 | Auxiliary device for testing viscosity of electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221864028.6U CN218350106U (en) | 2022-07-20 | 2022-07-20 | Auxiliary device for testing viscosity of electrolyte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218350106U true CN218350106U (en) | 2023-01-20 |
Family
ID=84912791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221864028.6U Active CN218350106U (en) | 2022-07-20 | 2022-07-20 | Auxiliary device for testing viscosity of electrolyte |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218350106U (en) |
-
2022
- 2022-07-20 CN CN202221864028.6U patent/CN218350106U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101657922B (en) | Apparatus and methods of determination of state of charge in a redox flow battery | |
| CN108736049B (en) | On-line measuring system for internal temperature and humidity of fuel cell | |
| Rudolph et al. | High resolution state of charge monitoring of vanadium electrolytes with IR optical sensor | |
| CN102236078B (en) | Method for determining cycle performance of lithium ion battery | |
| CN109507170B (en) | Miniaturized electrolyte contact glow discharge emission spectrum device | |
| CN218350106U (en) | Auxiliary device for testing viscosity of electrolyte | |
| JP3022571B2 (en) | Redox flow battery and method of measuring charge / discharge depth of redox flow battery | |
| Yamanaka et al. | In situ diagnosis of the electrolyte solution in a laminate lithium ion battery by using ultrafine multi-probe Raman spectroscopy | |
| CN213337697U (en) | Atmosphere temperature adjustable scanning electrochemistry-glove box combined device | |
| CN109765278A (en) | Electrochemical in-situ device | |
| CN112485208A (en) | Method and system for detecting solution ion migration under electric field | |
| CN112415061B (en) | Portable electrochemiluminescence detection device | |
| CN211150715U (en) | Can observe normal position optics comprehensive testing arrangement at solid-state and liquid battery interface | |
| CN101377539B (en) | Electrolytic cell for battery electrochemical measuring | |
| CN204903401U (en) | Lithium cell electrode material life -span detecting system based on normal position raman and electrochemistry composite algorithm | |
| CN218496818U (en) | Device for detecting starting potential and reaction current of hydrogen evolution and oxygen evolution reaction of battery | |
| CN105783126A (en) | Portable air purifier based on principle of differential amplification | |
| CN203376285U (en) | Electrochemistry gas sensor | |
| CN207408334U (en) | Photic electrochemical sensor | |
| CN210015210U (en) | On-off detection device for hydrogen fuel cell | |
| CN104819936A (en) | Spectroelectro-chemistry sensing composite probe for measuring colloidal quantum dot thin film | |
| CN217403568U (en) | Slurry level electric detection mechanism for lithium titanate production | |
| CN216249510U (en) | Novel oxygen concentration detection lamp | |
| CN220455489U (en) | Positive electrode composite structure obtained by graphene lithium iron phosphate battery | |
| CN220961184U (en) | Visual check out test set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230720 Address after: 266000 No. 6, Minshan Road, Huangdao District, Qingdao, Shandong Patentee after: LISHEN (QINGDAO) NEW ENERGY CO.,LTD. Patentee after: TIANJIN LISHEN NEW ENERGY TECHNOLOGY CO.,LTD. Address before: 266000 No. 6, Minshan Road, Huangdao District, Qingdao, Shandong Patentee before: LISHEN (QINGDAO) NEW ENERGY CO.,LTD. |
|
| TR01 | Transfer of patent right |