CN104181208B - A kind of cell size test device - Google Patents
A kind of cell size test device Download PDFInfo
- Publication number
- CN104181208B CN104181208B CN201410361639.2A CN201410361639A CN104181208B CN 104181208 B CN104181208 B CN 104181208B CN 201410361639 A CN201410361639 A CN 201410361639A CN 104181208 B CN104181208 B CN 104181208B
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- cylinder
- conducting strip
- slurry
- container
- test device
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Abstract
The present invention relates to a kind of cell size test device, including a container for being used to accommodate slurry, the container has the slurry inlet of top, is arranged at intervals with upper and lower conducting strip up and down in container intracavity, the terminals for connecting wire are respectively connected with upper and lower conducting strip.The stability for the electrical conductivity indirectly testing slurry that the present invention passes through testing size, test electrode is setting up and down, for accurate testing conductivity.
Description
Technical field
The present invention relates to a kind of cell size test device, particularly lithium battery Stability of Slurry to test.
Background technology
In the production of current driving force lithium battery, all the performance of slurry is judged by detecting the viscosity of slurry, and slurry is glutinous
Degree is influenceed by conditions such as temperature, humidity and conjunction slurry operating modes again, even if the viscosity of different batches slurry is identical, it is also difficult to sentence
The property of disconnected different batches slurry is identical；Therefore, it is badly in need of a kind of detection method in industry, can truly reflects the uniform of slurry
Property, stability, uniformity.
The content of the invention
It is an object of the invention to provide a kind of cell size test device, to solve prior art testing size stability
There is no the problem of appropriate method.
To achieve the above object, the solution of the present invention includes：
A kind of cell size test device, including one be used to accommodating the container of slurry, what the container had a top enters slurry
Material mouth, between the upper and lower every being fixedly installed upper and lower conducting strip in container intracavity, it is respectively connected with upper and lower conducting strip and is led for connection
The terminals of line.
The inner chamber of the container is up big and down small stepped cavity, and container body includes what the corresponding stepped cavity was wholely set
Upper end cylinder (5) and lower end barrel (6), the opening of upper end cylinder (5) is slurry inlet.
Upper end cylinder (5) upper end is provided with a removable cylinder (1), upper end cylinder (5) and the fixed company of removable cylinder (1)
Connect, the support for being used for fixed upper conducting strip (21) is provided with upper end cylinder (5) inwall.
After upper end cylinder (5) and removable cylinder (1) fixing assembling, the upper conducting strip (21) is in the stepped cavity upper end
It is more than face (30)；The terminals of the upper conducting strip (21) are set upward.
Along being provided with fixed pin jack (4) on upper end cylinder (5) outer wall, for the pin in removable cylinder (1) lower edge
The corresponding assembling of nail.
The lower end of lower end barrel (6) is provided with opening, and end cap (8) is installed with opening, the lower conduction is set in end cap (8)
Piece (20).
The terminals of the lower conducting strip (20) are set down；End cap (8) bottom is provided with cable-through hole (9), for wearing
Go out the terminals of the lower conducting strip (20) of connection.
The stability for the electrical conductivity indirectly testing slurry that the present invention passes through testing size.Test electrode is setting up and down,
It is easier to embody deposition properties in testing conductivity.
Further, using the up big and down small inner chamber in inner chamber, " upper big " is easy to pour into slurry from above, and " under small " can save
Test slurry.
Further, the upper and lower of container is respectively formed split-type structural, is easy to the assembling and fixation of electrode.
Brief description of the drawings
Fig. 1 is slurry test system structure figure；1 removable cylinder, 2 supports, 3 steady pins, 4 fix pin jack, 5 upper end cylinders
Body, 6 lower end barrels, 7 connecting portions, 8 end caps, 9 cable-through holes, 11 wires, 12 direct current resistance measurers, conducting strip on 20, lead under 21
Electric piece, 30 upper surfaces.
Embodiment
The present invention will be further described in detail below in conjunction with the accompanying drawings.
The basic scheme of the present invention is：A kind of cell size test device, including a container for being used to accommodate slurry,
The container has a slurry inlet of top, is arranged at intervals with upper and lower conducting strip in container intracavity up and down, on upper and lower conducting strip
It is connected with the terminals for connecting wire.
Further, the inner chamber of container is up big and down small stepped cavity.
Further, the upper and lower of container is respectively formed split-type structural, is easy to the assembling and fixation of electrode.
Specifically, test system as shown in Figure 1, including test device and with precision direct current resistance tester 12, tester
12 pass through the upper and lower conducting strip 21,20 of the connecting test device of wire 11.
Test device main body is a container, and for the ease of production and processing, container uses cylindrical shape.The inner chamber of container is
Up big and down small stepped cavity, corresponding with stepped cavity, container body includes the upper end cylinder 5 being wholely set and lower end barrel 6, on
The end diameter of cylinder 5 is more than the diameter of lower end barrel 6, and the opening of upper end cylinder 5 is slurry inlet.
Container body upper end is provided with a removable cylinder 1, and upper end cylinder 5 is fixedly connected with removable cylinder 1, upper end cylinder
The support for being used for fixed upper conducting strip 21 is provided with 5 inwalls, upper conducting strip 21 is fixed on middle position.Such as Fig. 1, support 2 is
It is a kind of it is symmetrically arranged "" shape shoestring, being capable of conducting strip 21 in support.Cylinder 5 and the removable fixing assembling of cylinder 1 in upper end
Afterwards, upper conducting strip 21 is in stepped cavity upper surface more than 30, to ensure that upper conducting strip 21 will not stop that slurry flows into the cavity of lower section.
The terminals of upper conducting strip 21 are set upward, are easy to the introducing of wire.Along fixed pin jack 4 is provided with the outer wall of upper end cylinder 5, use
In assembling corresponding with the pin in the removable lower edge of cylinder 1.
The lower end of lower end barrel 6 is provided with opening, and end cap 8 is installed with opening, and lower conducting strip 20 is set in end cap 8.End cap 8
Inside outer wall face, the lateral surface of connecting portion 7 of lower end barrel 6 are provided with screw thread, for realizing spinning.The terminals court of lower conducting strip 20
Lower setting；The bottom of end cap 8 is provided with cable-through hole 9, for passing the terminals of the lower conducting strip 20 of connection.
Whole container is process with polytetrafluoro material.Conducting strip uses copper test electrode, and lower conducting strip and end cap are close
Envelope coordinates.
Test process is as follows：
The oral area that slurry is had to the upper end cylinder of slurry detection means slowly pours into, and slurry will be filled with slurry detection dress
Put, until slurry floods the circular copper test electrode that upper end cylinder is fixed, then using conductivity measurement testing size
Electrical conductivity.
Slurry is poured into slurry detection means, slurry electrical conductivity is measured in different time points, observes slurry conductivity variations,
Due to phenomena such as slurry can reunite in placement process, settle, solute segregation, the electrical conductivity of slurry can also have therewith
Rule changes, therefore can judge the stability of slurry accordingly；It is tested respectively to same batch, the different slurries for closing pulp grinder preparation
Electrical conductivity, the uniformity of slurry can be judged according to conductivity data；For same batch, the same same kettle for closing pulp grinder and preparing
Slurry can detect conductivity in the more sub-samplings of diverse location, it can be determined that same batch, same conjunction pulp grinder prepare same
The uniformity of one kettle slurry.
An example given below：
The removable internal diameter 50mm of cylinder 1, wall thickness 5mm, height 30mm；Support 2 height 20mm, width 18mm；Cylinder needle-like
Thing 3, diameter 3mm, height 15mm；The internal diameter 50mm of upper end cylinder 5, wall thickness 5mm, height 30mm, the internal diameter 16mm of lower end barrel 6, wall
Thick 5mm, height 300mm；The fixed diameter 3.2mm of pin jack 4, height 16mm, disclosure satisfy that pin 3 is fully-inserted；In connecting portion 7
Footpath 16mm, wall thickness 2.5mm, height 100mm, its outer wall open silk；The external diameter 21mm of end cap 8, wall thickness 2.5mm, height 100mm, in it
Wall opens silk；The diameter 2mm of cable-through hole 9；Conducting strip 21,20 diameter 17mm；Wire 11 uses 1mm2Copper cash；Precision direct current resistance is surveyed
The range for measuring instrument 12 is 0~2000 Ω, precision 0.1%.
The LiFePO4 aqueous slurry just synthesized using the apparatus measures, slurry is slowly filled into survey from cylindrical tube 1
Trial assembly is put, until slurry floods and is fixed on circular electric pole piece on fixed support, and exceeds about 10mm, then opens precision DC electricity
Resistance measuring instrument measures.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.The base of the present invention
This thinking is above-mentioned basic scheme, for those of ordinary skill in the art, according to the teachings of the present invention, designs various changes
The model of shape, formula, parameter simultaneously need not spend creative work.It is right without departing from the principles and spirit of the present invention
The change, modification, replacement and modification that embodiment is carried out are still fallen within protection scope of the present invention.
Claims (4)
1. a kind of cell size test device, it is characterised in that including a container for being used to accommodate slurry, the container has upper
The slurry inlet of side, between the upper and lower every being fixedly installed upper and lower conducting strip in container intracavity, use is respectively connected with upper and lower conducting strip
In the terminals of connecting wire, pass through the stability of the electrical conductivity indirectly testing slurry of testing size；
The inner chamber of the container is up big and down small stepped cavity, and container body includes the upper end that the corresponding stepped cavity is wholely set
Cylinder（5）With lower end barrel（6）, upper end cylinder（5）Diameter be more than lower end barrel（6）Diameter, upper end cylinder（5）Opening
For slurry inlet；
Upper end cylinder（5）Upper end is provided with a removable cylinder（1）, upper end cylinder（5）With removable cylinder（1）It is fixedly connected, on
Hold cylinder（5）It is provided with inwall and is used for fixed upper conducting strip（21）Support, the support is a kind of symmetrically arranged step type
Shoestring；
Lower end barrel（6）Lower end be provided with opening, be installed with end cap in opening（8）, end cap（8）It is interior that the lower conducting strip is set
（20）.
2. a kind of cell size test device according to claim 1, it is characterised in that in upper end cylinder（5）With it is removable
Cylinder（1）After fixing assembling, the upper conducting strip（21）In the stepped cavity upper surface（30）More than；The upper conducting strip（21）
Terminals set upward.
A kind of 3. cell size test device according to claim 1, it is characterised in that the upper end cylinder（5）Outer wall
Upper edge is provided with fixed pin jack（4）, for removable cylinder（1）The corresponding assembling of pin in lower edge.
A kind of 4. cell size test device according to claim 3, it is characterised in that the lower conducting strip（20）Connect
Line end is set down；The end cap（8）Bottom is provided with cable-through hole（9）, for passing the lower conducting strip of connection（20）Terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410361639.2A CN104181208B (en) | 2014-07-25 | 2014-07-25 | A kind of cell size test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410361639.2A CN104181208B (en) | 2014-07-25 | 2014-07-25 | A kind of cell size test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104181208A CN104181208A (en) | 2014-12-03 |
| CN104181208B true CN104181208B (en) | 2017-12-05 |
Family
ID=51962432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410361639.2A Expired - Fee Related CN104181208B (en) | 2014-07-25 | 2014-07-25 | A kind of cell size test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104181208B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741443A (en) * | 2017-09-08 | 2018-02-27 | 广州鹏辉能源科技股份有限公司 | A kind of evaluation method of pulp of lithium ion battery stability |
| CN109270125A (en) * | 2018-09-11 | 2019-01-25 | 惠州亿纬锂能股份有限公司 | A kind of pulp of lithium ion battery detection method and device |
| CN109828000A (en) * | 2019-03-20 | 2019-05-31 | 宁波石墨烯创新中心有限公司 | Electrocondution slurry Detection of Stability method and application |
| 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 |
| CN112179958A (en) * | 2020-09-23 | 2021-01-05 | 南京航空航天大学 | Novel characterization method for slurry stability |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202008471U (en) * | 2011-03-01 | 2011-10-12 | 惠州市博能新能源有限公司 | Device for measuring performance consistency of slurry |
| CN202606094U (en) * | 2012-06-01 | 2012-12-19 | 中国东方电气集团有限公司 | Lithium battery electrode slurry stirring device for use in laboratory |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2540253B2 (en) * | 1991-08-06 | 1996-10-02 | 品川白煉瓦株式会社 | Conductivity measurement cell |
| CN102207479A (en) * | 2010-03-31 | 2011-10-05 | 深圳市比克电池有限公司 | Method for detecting dispersing uniformity of lithium ion battery slurry |
| CN102305812B (en) * | 2011-05-25 | 2013-03-27 | 天津力神电池股份有限公司 | Method for detecting dispersion effect of lithium ion battery slurry on line |
| CN102520247B (en) * | 2011-10-26 | 2014-04-02 | 中国石油集团西部钻探工程有限公司 | Slurry resistivity measuring device |
| CN202994712U (en) * | 2012-10-24 | 2013-06-12 | 中国石油化工股份有限公司 | Gel forming time determinator |
| CN204287100U (en) * | 2014-07-25 | 2015-04-22 | 河南科技大学 | Cell size proving installation |
-
2014
- 2014-07-25 CN CN201410361639.2A patent/CN104181208B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202008471U (en) * | 2011-03-01 | 2011-10-12 | 惠州市博能新能源有限公司 | Device for measuring performance consistency of slurry |
| CN202606094U (en) * | 2012-06-01 | 2012-12-19 | 中国东方电气集团有限公司 | Lithium battery electrode slurry stirring device for use in laboratory |
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| Publication number | Publication date |
|---|---|
| CN104181208A (en) | 2014-12-03 |
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Granted publication date: 20171205 Termination date: 20180725 |