CN207719317U - A kind of electrode slurry squeegee apparatus - Google Patents
A kind of electrode slurry squeegee apparatus Download PDFInfo
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- CN207719317U CN207719317U CN201720869871.6U CN201720869871U CN207719317U CN 207719317 U CN207719317 U CN 207719317U CN 201720869871 U CN201720869871 U CN 201720869871U CN 207719317 U CN207719317 U CN 207719317U
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- end plate
- solid electrolyte
- electrode slurry
- diaphragm
- baffle
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- 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
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Abstract
The utility model is related to a kind of electrode slurry squeegee apparatus, belong to Electrochemical Engineering field.The device includes substrate, left and right end plate, front and rear baffle and spreading blade；Electrode slurry is added on solid electrolyte diaphragm by solid electrolyte diaphragm as in the left and right end plate on substrate and the groove between front and rear baffle first；The height of solid electrolyte diaphragm is higher than front and rear baffle, is less than left and right end plate；Spreading blade is flattened on the end plate of left and right, electrode slurry is set to be uniformly distributed in solid electrolyte diaphragm plane by the movement of spreading blade, extra electrode slurry is struck off by front and rear baffle, and the difference in height between left and right end plate and solid electrolyte diaphragm is the coating layer thickness of electrode slurry.The difference in height between end plate, short slab and diaphragm is utilized in the device, realizes uniform coating of the electrode layer on monolithic hard diaphragm in button cell.The apparatus structure is simple, small and exquisite, easy to operate, particularly suitable for occasions such as electrode coated layers on ceramic-like solid electrolyte diaphragm.
Description
Technical field
The utility model is related to a kind of electrode slurry squeegee apparatus on ceramic-like solid electrolyte diaphragm, belong to electricity
Field of chemical engineering.
Background technology
Lithium rechargeable battery is high with voltage, higher than energy, operating temperature range is wide, specific power is big, self discharge is small, puts
The remarkable advantages such as level is steady, charge efficiency is high, has extended cycle life, it has also become electronic product, electric vehicle, aerospace,
One of main power source in the fields such as military affairs.Due to using volatile, incendive organic electrolyte, the secondary electricity of conventional lithium ion
There is the potential danger of burning and explosion in pond.Lithium ion battery of new generation, that is, so-called " all-solid-state battery ", using solid electrolyte
Instead of flammable organic electrolyte, fundamentally solves the safety problem of battery, the research of solid electrolyte diaphragm is also
As current research hotspot.
Assemble compact button cell is the substantially square of characterization electrode material and battery performance in lithium rechargeable battery research
One of method.For laboratory research lithium rechargeable battery, typically in the affluxs body surface such as the aluminium foil of larger area or copper foil
Face scratches electrode layer by special equipment, and the electrode compound with collector metal foil is then punched into the disk of certain diameter,
Diaphragm is finally sandwiched in positive and negative electrode layer, electrolyte is added dropwise, is packaged into button cell, and is tested for the property.However, right
For the assembling of " all-solid-state battery ", with Li7La3Zr2O12(LLZO) for solid electrolyte diaphragm, what is be prepared is hard
The ceramiic solid electrolyte diaphragm of matter, to improve contact of the electrode material with ceramic diaphragm, it is necessary first to (usually by electrode slurry
For positive electrode, cathode uses metal lithium sheet) it is coated uniformly on membrane surface, then further changed by modes such as high temperature co-firing knots
Other subsequent operations such as kind electrode/diaphragm interface.
The ceramic diaphragm that laboratory is prepared is usually the smaller thin slice of size, and the area of plane is usually at several squares lis
Within rice, and common electrode slurry blade coating equipment general size is larger, and needs to carry out punching shaping after coating, therefore, it is impossible to
Preparation occasion for layered ceramic membrane surface electrode layer.It is past when equally, using other easy means such as such as dropper, medicine spoons
Toward the even application of electrode slurry is difficult to realize and coating layer thickness is unable to control, this not only makes electrode material be distributed in membrane surface
Unevenness, due to surface irregularity, easily causes the rupture of ultra-thin ceramic diaphragm in the pressurization assembling process of later stage button cell,
Make battery short circuit and can not work.
Invention content
The purpose of this utility model is small size, monolithic pottery when solving using solid electrolyte diaphragm assembling button cell
It is equal to provide a kind of electrode layer simple in structure, easy to operate for the problem of surface top electrode slurry of porcelain diaphragm is difficult to uniformly coat
Even applying device.
The utility model solves the above problems the technical solution of use：The device include substrate, end plate, baffle, spreading blade,
Solid electrolyte diaphragm and electrode slurry；Solid electrolyte diaphragm is located in the groove being made of end plate and baffle on substrate；Electricity
Pole slurry is located on solid electrolyte diaphragm；Spreading blade is flattened on end plate, makes electrode slurry in solid by mobile spreading blade
It is uniformly distributed in electrolyte membrance plane, while extra electrode slurry being struck off by baffle；End plate and solid electrolyte every
Difference in height between film as scratches obtained electrode slurry coating layer thickness.
Above-mentioned electrode slurry squeegee apparatus, substrate, end plate, baffle and spreading blade are organic glass, engineering plastics or not
Become rusty the hard materials such as steel, avoids the inhomogeneities that material Zona transformans comes in knifing process.
The beneficial effects of the utility model：The device realizes button electricity using the difference in height between end plate, baffle and diaphragm
Uniform coating of the electrode layer on monolithic hard diaphragm in pond；The apparatus structure is simple, small and exquisite, easy to operate, is particularly suitable for using
In on ceramic-like solid electrolyte diaphragm electrode layer coating etc. occasions.
Description of the drawings
The vertical view structural map of Fig. 1 electrode slurry squeegee apparatus
The I--I sectional views of Fig. 2 Fig. 1
In figure：1. substrate, 2-1. end plates a, 2-2. end plate b, 3-1. baffle a, 3-2. baffle b, 4. spreading blades, 5. solids
Electrolyte membrance, 6. electrode slurrys.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and examples.
Embodiment 1
The electrode slurry squeegee apparatus includes substrate 1, end plate a 2-1, end plate b 2-2, baffle a 3-1, baffle b 3-2
It is organic glass material with spreading blade 4.When blade coating, first by a diameter of 1.2cm, the LLZO solid electricity that thickness is 0.5mm
Solution matter diaphragm 5 is placed in the groove being made of end plate a 2-1, end plate b 2-2, baffle a 3-1 and baffle b 3-2 on substrate 1,
The electrode slurry 6 containing positive active material is added dropwise on solid electrolyte diaphragm 5 using dropper；Spreading blade 4 is flattened on end plate a
On 2-1 and end plate b 2-2, electrode slurry 6 is set to be uniformly distributed in 5 plane of solid electrolyte diaphragm by the movement of spreading blade 4,
Remaining electrode slurry 6 is struck off by baffle a 3-1 or baffle b 3-2；Baffle a 3-1 and baffle b 3-2 height are
The height of 0.2mm, end plate a 2-1 and end plate b 2-2 are 0.6mm, pass through end plate a 2-1 and end plate b 2-2 and solid electrolytic
The coating layer thickness that difference in height between matter diaphragm 5 obtains electrode slurry 6 is 0.1mm.
Using the utility model proposes electrode slurry squeegee apparatus can realize small size, monolithic, on hard membrane surface
The uniform, controllable of electrode slurry coats, and device is simple and convenient to operate, small particularly suitable for ceramic-like solid electrolyte diaphragm etc.
The electrode layer of size hard material surface prepares occasion.
Claims (2)
1. a kind of electrode slurry squeegee apparatus, it is characterized in that：The device include substrate (1), end plate a (2-1), end plate b (2-2),
Baffle a (3-1), baffle b (3-2), spreading blade (4), solid electrolyte diaphragm (5) and electrode slurry (6)；Solid electrolyte diaphragm
(5) it is located in the groove being made of end plate a (2-1), end plate b (2-2), baffle a (3-1) and baffle b (3-2) on substrate (1)；Electricity
Pole slurry (6) is placed on solid electrolyte diaphragm (5)；Spreading blade (4) is flattened on end plate a (2-1) and end plate b (2-2).
2. electrode slurry squeegee apparatus according to claim 1, it is characterised in that：Substrate (1), end plate a (2-1), end plate b
(2-2), baffle a (3-1), baffle b (3-2), organic glass, engineering plastics or the stainless steel that spreading blade (4) is hard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720869871.6U CN207719317U (en) | 2017-07-18 | 2017-07-18 | A kind of electrode slurry squeegee apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720869871.6U CN207719317U (en) | 2017-07-18 | 2017-07-18 | A kind of electrode slurry squeegee apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207719317U true CN207719317U (en) | 2018-08-10 |
Family
ID=63063876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720869871.6U Active CN207719317U (en) | 2017-07-18 | 2017-07-18 | A kind of electrode slurry squeegee apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207719317U (en) |
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2017
- 2017-07-18 CN CN201720869871.6U patent/CN207719317U/en active Active
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