CN211528117U - Solid content testing device for lithium ion battery slurry - Google Patents
Solid content testing device for lithium ion battery slurry Download PDFInfo
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- CN211528117U CN211528117U CN201921930159.8U CN201921930159U CN211528117U CN 211528117 U CN211528117 U CN 211528117U CN 201921930159 U CN201921930159 U CN 201921930159U CN 211528117 U CN211528117 U CN 211528117U
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- Prior art keywords
- lithium ion
- ion battery
- slurry
- solid content
- lower die
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- 239000002002 slurry Substances 0.000 title claims abstract description 71
- 239000007787 solid Substances 0.000 title claims abstract description 38
- 238000012360 testing method Methods 0.000 title claims abstract description 36
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 29
- 238000005485 electric heating Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 16
- 239000000126 substance Substances 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000001035 drying Methods 0.000 description 17
- 239000011888 foil Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000001802 infusion Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model relates to a lithium ion battery prepares the field, discloses a lithium ion battery thick liquids solid content testing arrangement, and it mainly includes the bed die, goes up the mould go up be provided with one on the mould and fill the mouth, work as it is in to go up the mould lock when the bed die is last form a cavity between last grinding apparatus, the bed die, the cavity depth everywhere is unanimous, fill the mouth with the cavity intercommunication. The method for preparing the slurry film layer by applying the embodiment in the solid substance content test of the slurry can determine the uniformity of the thickness of the slurry film layer, is simple to operate, is beneficial to reducing the operation errors of personnel, improves the test precision of the solid substance content test of the slurry, and further improves the consistency of the lithium ion battery.
Description
Technical Field
The utility model relates to a lithium ion battery preparation field discloses a lithium ion battery thick liquids solid content testing arrangement.
Background
The slurry is a core material in the lithium ion battery, and when the positive plate and the negative plate are prepared, the polar material is required to be prepared into the slurry, and the slurry is coated on the foil to form the pole piece. The solid matter content of the slurry is a key index influencing the pole piece coating process. Therefore, when preparing the slurry, the solid content of the current slurry needs to be tested to ensure the consistency of the solid content of each batch of slurry of the battery.
In the prior art, the determination of the solid matter content of the slurry is mainly to pour the slurry to be determined on the surface of a foil, so that the slurry can be automatically leveled on the surface of the foil or can be leveled by adopting vibration, a slurry film layer can be formed on the surface of the foil, then the foil (together with the leveled slurry film layer thereon) is placed in a drying chamber to be dried for a preset time, the foil is taken out, the dried mass is weighed, and the solid matter content of the current slurry can be obtained by comparing the mass of the slurry before drying and the mass of the dried film layer.
However, in the process of research of the invention, the following defects are found in the prior art:
1. in the prior art, the uniformity of the thickness of a slurry film layer formed on the surface of a foil is difficult to control, so that the drying uniformity is poor, and the content precision of the solid substance of the obtained current slurry is poor.
2. In the prior art, the sampling quantity of the slurry to be measured sampled in each batch is inconsistent, however, the precision of the quality measuring instrument is a fixed parameter, and the sampling quantity is different each time, so that the solid substance content precision of the slurry measured each time is inconsistent.
The consistency of the slurry adopted by each batch of lithium ion batteries is influenced, and the consistency of the batteries is further influenced.
Disclosure of Invention
An object of the embodiment of the utility model is to provide a lithium ion battery thick liquids solid content testing arrangement uses this embodiment membrane device preparation thick liquids rete in the solid state material content test of thick liquids, and easy operation is favorable to reducing personnel misoperation, improves the measuring accuracy of the solid state material content test of thick liquids, and then improves lithium ion battery's uniformity.
In a first aspect, an embodiment of the present invention provides a lithium ion battery slurry solid content testing device, include:
a lower die;
the upper die is provided with a pouring opening, when the upper die is buckled on the lower die, a cavity is formed between the upper die and the lower die, the depth of each part of the cavity is consistent, and the pouring opening is communicated with the cavity.
Optionally, the top surface of the lower mold is a plane, and the bottom surface of the upper mold is a plane.
Optionally, a container is arranged on the top of the lower die,
when the upper die is hermetically buckled on the lower die, the bottom surface of the upper die is hermetically buckled at the top of the edge of the container.
Optionally, the bottom surface of the upper mold is a smooth surface.
Optionally, the inner surface of the container is smooth.
Optionally, a convex rib protruding from the bottom surface is formed at the bottom of the upper die,
the lower die is provided with a raised platform, the convex edge of the upper die is buckled on the periphery of the raised platform in a sealing manner, and the cavity is formed between the raised platform and the bottom surface of the upper die and the convex edge.
Optionally, a convex rib protruding from the bottom surface is formed at the bottom of the upper die,
the lower die is provided with a raised platform, the convex edge of the upper die is hermetically buckled on the top surface of the raised platform, and the cavity is formed between the raised platform and the bottom surface of the upper die and the convex edge.
Optionally, the top surface of the lower die and/or the bottom surface of the lower die are smooth surfaces; alternatively, the first and second electrodes may be,
the top surface of the lower die and/or the bottom surface of the lower die are rough surfaces.
Optionally, an electric heating device is further arranged below the top surface of the lower die.
Optionally, an electronic scale is further disposed at the bottom of the lower mold, and the lower mold is placed on the electronic scale.
It can be seen from the above that, the application principle of this embodiment technical scheme is that, when testing, will go up the mould lock on the bed die, form the fixed cavity of this embodiment, fill lithium ion battery thick liquids to the cavity through the infusion mouth of last mould, wherein this thick liquids can be anodal thick liquids or negative pole thick liquids. When the cavity is filled with the slurry and reaches the pouring opening, the pouring is stopped, and the thickness of the slurry in the cavity is consistent, so that the drying uniformity is improved, and the testing consistency of the slurry in each batch is ensured.
In conclusion, the technical scheme of the embodiment is applied to the solid content test of the lithium ion battery slurry, and has the following beneficial effects:
1. the measured slurry is the volume of the chamber 4, so that the consistency of the measured slurry amount can be ensured, the consistency of each measurement can be improved, and the difference of error ranges of each measurement caused by inconsistent measuring amount can be avoided.
2. The thickness of the slurry film layer formed by the scheme of the embodiment is uniform, the drying uniformity is higher, and the accuracy of testing the solid substance content of the slurry is improved.
3. By applying the technical scheme of the embodiment, the method is also beneficial to convenient and quick test, reduces personnel errors and improves the test stability of the solid substance content of the slurry.
Drawings
Fig. 1 is a schematic view of an assembly structure of a device for testing solid content of slurry of a lithium ion battery provided in embodiment 1 of the present invention;
FIG. 2 is a schematic view of the use configuration of FIG. 1;
fig. 3 is a schematic view of an assembly structure of another apparatus for testing solid content of slurry for lithium ion battery provided in embodiment 1 of the present invention;
fig. 4 is a schematic diagram of the use structure of fig. 3.
Reference numerals:
1: a lower die; 2: an upper die; 3: an infusion port; 4: a chamber; 5: a container; 6: a raised platform; 7: a rib; 8: an electric heating device; 9: an electronic scale.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided to explain the invention, but not to limit the invention.
Example 1:
referring to fig. 1 to 4, the present embodiment provides a device for testing solid content of slurry of a lithium ion battery, which mainly includes: the lower mold 1 is located below the upper mold 2 is located above the lower mold 1, wherein the upper mold 2 includes a base, and a pouring opening 3 is provided on the upper mold 2, wherein the pouring opening 3 can be but is not limited to be formed on the top of the upper mold 2, when the upper mold 2 is fastened on the lower mold 1, a cavity 4 is formed between the lower mold 1 and the bottom surface of the upper mold 2, the depth of the cavity 4 is consistent, and the pouring opening 3 is communicated with the cavity 4.
The application principle of this embodiment technical scheme is that, during the test, with the sealed lock of upper mould 2 on lower mould 1, form the fixed cavity 4 of this embodiment, fill lithium ion battery thick liquids in to cavity 4 through the infusion mouth 3 of upper mould 2, wherein this thick liquids can be positive pole thick liquids or negative pole thick liquids. When the chamber 4 is filled with the slurry and reaches the pouring port 3, the pouring is stopped, and the thickness of the slurry in the chamber 4 is consistent, so that the drying uniformity is improved, and the testing consistency of the slurry in each batch is ensured.
In conclusion, the technical scheme of the embodiment is applied to the solid content test of the lithium ion battery slurry, and has the following beneficial effects:
1. the measured slurry is the volume of the chamber 4, so that the consistency of the measured slurry amount can be ensured, the consistency of each measurement can be improved, and the difference of error ranges of each measurement caused by inconsistent measuring amount can be avoided.
2. The thickness of the slurry film layer formed by the scheme of the embodiment is uniform, the drying uniformity is higher, and the accuracy of testing the solid substance content of the slurry is improved.
3. By applying the technical scheme of the embodiment, the method is also beneficial to convenient and quick test, reduces personnel errors and improves the test stability of the solid substance content of the slurry.
The upper die 2 and the lower die 1 are weighed together with the slurry in the cavity 4 as a whole, then the whole is placed into a baking chamber for baking, the slurry is uniformly baked after a preset period of time, then the whole is taken out and weighed again, and the weight of the dried slurry before and after the drying can be calculated according to the net weight of the upper die 2 and the lower die 1, so that the content of solid substances of the slurry is calculated.
Wherein, the bottom surface of mould 2, the top surface of bed die 1 respectively can be the rough surface, also preferably but not limited to be the smooth surface, adopt the smooth surface design further conveniently to take out the drier that is located cavity 4 after drying, improve the convenience of cleaning.
As an illustration of the present embodiment, but not limited to, the top surface of the lower mold 1 and the bottom surface of the upper mold 2 of the present embodiment are respectively designed to be flat surfaces, so as to form a flat cylindrical cavity 4, wherein the cross section of the cavity 4 perpendicular to the depth thereof may be circular, oval, or square or other shapes.
As an illustration of the present embodiment, the top surface of the lower mold 1 and the bottom surface of the upper mold 2 may be designed as curved surfaces having parallel shapes, respectively.
Referring to fig. 1, as an illustration of the present embodiment, a container 5 having a closed edge may be provided on the bottom of the lower mold 1, and the depth of the container 5 is uniform, so that, referring to fig. 2, when the upper mold 2 is sealingly fastened to the lower mold 1, the bottom surface of the upper mold 2 is sealingly fastened to the top of the edge of the container 5, and a cavity 4 is formed between the bottom surface of the upper mold 2 and the container 5.
In addition, the bottom surface of the upper die 2 can be designed to be a smooth surface, and after slurry is poured, the upper die 2 can be taken down, and almost no slurry is stuck to the bottom surface of the upper die 2 because the bottom surface of the upper die 2 is the smooth surface. Weighing the lower die 1 and the slurry in the container 5, then placing the lower die and the slurry in a drying chamber, drying the slurry for a preset time to uniformly dry the slurry, taking out the slurry, weighing the slurry again, and calculating the weight of the slurry before and after drying according to the net weight of the lower die 1 to obtain the content of solid substances of the slurry.
As an indication of this embodiment, the inner surface of the container 5 of the lower mold 1 may be designed to be a smooth surface, so that the dried material solidified in the container 5 can be taken out after drying, and the cleaning convenience is improved.
Referring to fig. 3, as an illustration of the present embodiment, a convex rib 7 protruding to the bottom may be further designed at the bottom of the upper mold 2, and a convex platform 6 is provided on the lower mold 1. Referring to fig. 4, when the upper mold 2 is fastened to the lower mold 1, the protruding rib 7 of the upper mold 2 is sealingly fastened to the outer periphery of the raised platform 6, and the raised platform 6 of the lower mold 1, the bottom surface of the upper mold 2 and the protruding rib 7 form the cavity 4 of the present embodiment. Can be the coarse surface with the design of the top surface of the protruding platform 6 of upper die 2 in this embodiment, make thick liquids glue tightly on its surface, will go up the bottom surface of mould 2 and bead 7 and all design for the smooth surface, can take off upper die 2 when drying, put into the drying chamber with lower die 1 and the thick liquids that bond on lower die 1 and dry. However, the upper mold 2 and the lower mold 1 may be placed in a drying chamber as a whole to be dried, and the top surface of the raised platform 6 of the upper mold 2, the bottom surface of the lower mold 1, and the rib 7 may be rough surfaces or smooth surfaces.
Referring to fig. 1 to 4, as an illustration of the present embodiment, an electric heating device 8, such as but not limited to a heating wire laid under the bottom surface of the lower mold 1, may be further designed in the lower mold 1, and heat of the heating wire is transferred to the bottom surface of the lower mold 1 to bake directly on the lower mold 1 without moving the lower mold 1, so as to improve convenience of the experiment.
Referring to fig. 1-4, as an illustration of the present embodiment, an electronic scale 9 is further disposed below the lower mold 1 to weigh the weight before and after drying without moving the lower mold 1, so as to improve the convenience of the experiment.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (10)
1. A solid content testing device for lithium ion battery slurry is characterized by comprising:
a lower die;
the upper die is provided with a pouring port, when the upper die is buckled on the lower die, a cavity is formed between the upper die and the lower die, the depth of each part of the cavity is consistent, and the pouring port is communicated with the cavity.
2. The lithium ion battery slurry solid content testing device according to claim 1,
the top surface of the lower die is a plane, and the bottom surface of the upper die is a plane.
3. The lithium ion battery slurry solid content testing device according to claim 1,
a container is arranged at the top of the lower die,
when the upper die is hermetically buckled on the lower die, the bottom surface of the upper die is hermetically buckled at the top of the edge of the container.
4. The device for testing the solid content of the lithium ion battery slurry according to claim 3,
the bottom surface of the upper die is a smooth surface.
5. The device for testing the solid content of the lithium ion battery slurry according to claim 3,
the inner surface of the container is smooth.
6. The lithium ion battery slurry solid content testing device according to claim 1,
the bottom of the upper die is provided with a convex rib which is convex and has a bottom surface,
the lower die is provided with a raised platform, the convex edge of the upper die is buckled on the periphery of the raised platform in a sealing manner, and the cavity is formed between the raised platform and the bottom surface of the upper die and the convex edge.
7. The lithium ion battery slurry solid content testing device according to claim 1,
the bottom of the upper die is provided with a convex rib which is convex and has a bottom surface,
the lower die is provided with a raised platform, the convex edge of the upper die is hermetically buckled on the top surface of the raised platform, and the cavity is formed between the raised platform and the bottom surface of the upper die and the convex edge.
8. The lithium ion battery slurry solid content testing device according to claim 1,
the top surface of the lower die and/or the bottom surface of the lower die are smooth surfaces; alternatively, the first and second electrodes may be,
the top surface of the lower die and/or the bottom surface of the lower die are rough surfaces.
9. The lithium ion battery slurry solid content testing device according to claim 1,
and an electric heating device is also arranged below the top surface of the lower die.
10. The lithium ion battery slurry solid content testing device according to claim 9,
an electronic scale is further arranged at the bottom of the lower die, and the lower die is arranged on the electronic scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921930159.8U CN211528117U (en) | 2019-11-08 | 2019-11-08 | Solid content testing device for lithium ion battery slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921930159.8U CN211528117U (en) | 2019-11-08 | 2019-11-08 | Solid content testing device for lithium ion battery slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211528117U true CN211528117U (en) | 2020-09-18 |
Family
ID=72462803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921930159.8U Expired - Fee Related CN211528117U (en) | 2019-11-08 | 2019-11-08 | Solid content testing device for lithium ion battery slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211528117U (en) |
-
2019
- 2019-11-08 CN CN201921930159.8U patent/CN211528117U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200918 |