CN207351943U - Detection device for detecting dispersion degree of CMC glue solution - Google Patents
Detection device for detecting dispersion degree of CMC glue solution Download PDFInfo
- Publication number
- CN207351943U CN207351943U CN201721380019.9U CN201721380019U CN207351943U CN 207351943 U CN207351943 U CN 207351943U CN 201721380019 U CN201721380019 U CN 201721380019U CN 207351943 U CN207351943 U CN 207351943U
- Authority
- CN
- China
- Prior art keywords
- cmc
- detection device
- container
- vacuum
- glue solution
- 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.)
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- 239000003292 glue Substances 0.000 title claims abstract description 38
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 239000006185 dispersion Substances 0.000 title abstract 2
- 238000003760 magnetic stirring Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 5
- 239000012780 transparent material Substances 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 abstract description 6
- 238000012546 transfer Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 239000002002 slurry Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model provides a detection device for detecting CMC glue solution dispersion degree, including the vacuum storehouse with vacuum pump connection, the bottom end of the vacuum storehouse is equipped with magnetic stirrers admittedly, and the magnetic stirrers is put on the upper frame and is equipped with the water bath, the water bath embeds has the container that is used for splendid attire CMC glue solution; and an electrode for detecting the conductivity of the CMC glue solution is arranged in the container. The utility model discloses a vacuum chamber links to each other with the vacuum pump among the detection device, can make and keep certain vacuum in the vacuum chamber to detach and wait to examine the bubble in the CMC glue solution. And the temperature is changed through the water bath kettle, so that the heat transfer is rapid and uniform. And detecting the conductivity of the glue solution through the electrode so as to determine the gluing end point.
Description
Technical field
It the utility model is related to lithium ion battery and close slurry technical field, and in particular to one kind is disperseed for detecting CMC glues
The detection device of degree.
Background technology
Lithium ion battery is a kind of new environmentally protective electrochmical power source, it has, and voltage is high, discharge voltage bigger than energy
Steadily, good cycle, security performance be excellent and storage and the advantages that long working life, is the newest of current electrochmical power source industry
One of developing direction.It is the first step in lithium ion battery manufacturing process to close slurry, and the quality of stock quality directly affects lithium ion
The performance of battery.During anode closes slurry, the first step is exactly gluing, i.e., dispersing agent C MC is dispersed in glue, if
The gluing time is too short, and CMC disperses inequality, can cause slurry bad dispersibility, so as to cause that coated face density uniformity is poor, pole piece stripping
, internal resistance big a series of problems, such as low from intensity, directly affect the quality of battery；And the gluing time is too long, then efficiency, shadow can be reduced
Production capacity is rung, is unfavorable for enterprise development.Therefore, judge that the terminal of gluing is most important for anode conjunction slurry process exactly.But lose
Regret, have no at present can easy quick detection glue degree of scatter device, although having reported in literature to cross before this uses electrical conductivity
To judge the method for glue degree of scatter, but do not applied in lithium electricity industry.In addition, though electrical conductivity, which can react glue, disperses journey
Degree, but influenced by very many, such as：First, the CMC glues of producing line, due to that in the system quickly stirred, can contain big
Bubble is measured, seriously affects testing result；Secondly as the shear shinning effect of Polymer Solution, shear rate is again by stirring speed
Rate determines, therefore the viscosity of glue changes with stir speed (S.S.), and viscosity can change the resistance of ion motion, so as to change conductance
Rate；Finally, the diffusion rate of ion is also affected by temperature, and causes electrical conductivity to increase with the rise of temperature.Therefore, for glue
The detection of liquid not only needs influence that is fast and convenient, but also excluding bubble, stir speed (S.S.) and temperature, will so as to reach accuracy rate
Ask.
Utility model content：
The utility model aim is a kind of detection device for being used to detect CMC glue degrees of scatter, improves the accurate of detection
Property.
The technical solution of the utility model is as follows：
A kind of detection device for being used to detect CMC glue degrees of scatter, including the vacuum storehouse being connected with vacuum pump are described true
Hole capital after selling all securities bottom is installed with magnetic stirring apparatus, and water-bath is provided with magnetic stirring apparatus, and the water-bath is built-in with for containing CMC
The container of glue；The electrode of detection CMC glue electrical conductivity is equipped with the container.
Further scheme, is equipped with temperature sensor in the container, the top in the vacuum storehouse is equipped with control panel, described
Temperature sensor and electrode are connected by cable with control panel.
Further scheme, the temperature sensor and electrode are connected on the inner wall of vacuum storehouse by stent, its bottom point
Wei Yu not be in container under the liquid level of CMC glues.
Further scheme, the vacuum storehouse are equipped with visual door；The water-bath and container are that transparent material is made.
Vacuum storehouse is connected with vacuum pump in the detection device of the utility model, can make to keep certain vacuum in vacuum storehouse
Degree, to remove the bubble in CMC glues to be checked.And the door in vacuum storehouse is embedded with transparent glass, tester is facilitated to observe sample situation.
Magnetic stirring apparatus is controllable temperature, and sample can be made to keep constant temperature, and the magneton in container is stirred with fixed rate, is ensured
Sample has constant shear rate.Container is placed in water-bath, changes temperature by water-bath, makes heat transfer rapid and equal
It is even.And water-bath and container make tester to observe glue by visual door, judge that bubble is all made of transparent material
It is no to eliminate.
The electrode and temperature sensor are to be fixed on by stent on the inner wall of vacuum storehouse, it is highly adjustable, and passes through
Conducting wire is connected with control panel, control panel be it is existing be built in controller, can be set by button when vacuumizing, stirring
Between.Electrode is placed in below liquid level to be measured with temperature sensor, its electrode ability within the scope of certain temperature is controlled by control panel
Start to be detected the electrical conductivity of glue, stop stirring while detection, if vacuumizing at this time and mixing time is not up to set
Definite value, then continue to vacuumize and stir, and after setting time, then starts to detect.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
In figure：1- vacuum storehouse, the visual doors of 2-, 3- magnetic stirring apparatus, 4- water-baths, 5- vacuum pumps, 6- containers, 7- temperature
Sensor, 8- electrodes, 9- control panels, 10- stents.
Embodiment
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described.
As shown in Figure 1, a kind of be used to detect the detection devices of CMC glue degrees of scatter, including it is connected with vacuum pump 5 true
Hole capital after selling all securities 1,1 bottom of vacuum storehouse are installed with magnetic stirring apparatus 3, and water-bath 4, the water-bath 4 are provided with magnetic stirring apparatus 3
It is built-in with the container 6 for containing CMC glues；The electrode 8 of detection CMC glue electrical conductivity is equipped with the container 6.
Further scheme, is equipped with temperature sensor 7 in the container 6, and the top in the vacuum storehouse 1 is equipped with control panel 9,
The temperature sensor 7 and electrode 8 are connected by cable with control panel 9.
Further scheme, the temperature sensor 7 and electrode 8 are connected on 1 inner wall of vacuum storehouse by stent 10, its bottom
End is located in container 6 under the liquid level of CMC glues respectively.
Further scheme, the vacuum storehouse 1 are equipped with visual door 2；The water-bath 4 and container 6 are transparent material system
Into.
In practical operation, CMC glues 20ml in conjunction slurry cylinder is taken to be placed in the container beaker in this detection device every 40min
In, door is closed, opens vacuum pump to being vacuumized in vacuum storehouse, while opens water-bath and magnetic stirring apparatus progress work
Make, electrode and temperature sensor are placed under glue liquid level.Vacuumize and be arranged to 10min with mixing time.Work as temperature sensing
After device detects that the temperature of glue reaches the temperature range specified, magnetic stirring apparatus stops, and electrode starts to detect the conductance of glue
Rate, and directly showing numerical value on conductivity meter, the electrical conductivity such as measured is followed successively by 2045,2242,2404,2519,
2622nd, 2681 μ s, the degree of scatter of CMC are judged further according to the change of electrical conductivity, so that it is determined that gluing terminal.
The above descriptions are merely preferred embodiments of the present invention, and not the utility model is made in any form
Limitation, although the utility model has been disclosed with preferred embodiment as above, but be not limited to the present invention, it is any to be familiar with sheet
Technical professional, is not departing from the range of technical solutions of the utility model, when the technology contents work using the disclosure above
Go out a little change or be modified to the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solutions of the utility model,
Any simple modification, equivalent change and modification made according to the technical essence of the utility model to above example, still belongs to
In the range of technical solutions of the utility model.
Claims (4)
- A kind of 1. detection device for being used to detect CMC glue degrees of scatter, it is characterised in that：Including with vacuum pump（5）Connection Vacuum storehouse（1）, the vacuum storehouse（1）Bottom is installed with magnetic stirring apparatus（3）, magnetic stirring apparatus（3）On be provided with water-bath （4）, the water-bath（4）It is built-in with the container for containing CMC glues（6）；The container（6）It is interior to be equipped with detection CMC glues The electrode of electrical conductivity（8）.
- A kind of 2. detection device for being used to detect CMC glue degrees of scatter according to claim 1, it is characterised in that：Institute State container（6）In be equipped with temperature sensor（7）, the vacuum storehouse（1）Top be equipped with control panel（9）, the temperature sensing Device（7）And electrode（8）Pass through cable and control panel（9）Connection.
- A kind of 3. detection device for being used to detect CMC glue degrees of scatter according to claim 2, it is characterised in that：Institute State temperature sensor（7）And electrode（8）Pass through stent（10）It is connected to vacuum storehouse（1）On inner wall, its bottom is respectively positioned at appearance Device（6）Under the liquid level of middle CMC glues.
- A kind of 4. detection device for being used to detect CMC glue degrees of scatter according to claim 1, it is characterised in that：Institute State vacuum storehouse（1）Equipped with visual door（2）；The water-bath（4）And container（6）It is that transparent material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721380019.9U CN207351943U (en) | 2017-10-17 | 2017-10-17 | Detection device for detecting dispersion degree of CMC glue solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721380019.9U CN207351943U (en) | 2017-10-17 | 2017-10-17 | Detection device for detecting dispersion degree of CMC glue solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207351943U true CN207351943U (en) | 2018-05-11 |
Family
ID=62355778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721380019.9U Active CN207351943U (en) | 2017-10-17 | 2017-10-17 | Detection device for detecting dispersion degree of CMC glue solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207351943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752416A (en) * | 2019-03-20 | 2019-05-14 | 宁波石墨烯创新中心有限公司 | Slurry uniformity detection method and application |
-
2017
- 2017-10-17 CN CN201721380019.9U patent/CN207351943U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752416A (en) * | 2019-03-20 | 2019-05-14 | 宁波石墨烯创新中心有限公司 | Slurry uniformity detection method and application |
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