CN208505857U - A kind of lithium ion battery separator guarantor liquid rate test device - Google Patents
A kind of lithium ion battery separator guarantor liquid rate test device Download PDFInfo
- Publication number
- CN208505857U CN208505857U CN201820776605.3U CN201820776605U CN208505857U CN 208505857 U CN208505857 U CN 208505857U CN 201820776605 U CN201820776605 U CN 201820776605U CN 208505857 U CN208505857 U CN 208505857U
- Authority
- CN
- China
- Prior art keywords
- membrane
- wraping plate
- lithium ion
- test device
- liquid rate
- 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.)
- Expired - Fee Related
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Classifications
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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
Abstract
The utility model discloses a kind of lithium ion battery separators to protect liquid rate test device, comprising: sets membrane, dipping tank and wraping plate shaking table, setting membrane includes the metallic sieve for placing battery diaphragm, and is fixed on one jiao of metallic sieve of hand-held rod；Dipping tank is tubular structure, and one end of tubular structure is open architecture, is equipped with inside tubular structure for impregnating the cavity for setting membrane, dipping tank is fixed with snap ring in open end side；Wraping plate shaking table is used to remove the electrolyte of battery diaphragm excess surface.The battery diaphragm of the utility model design protects liquid rate test device, using fixation, stable processing mode, realizes precise measurement, and the drawbacks of capable of obtaining reliable results need to repeatedly be measured just by avoiding, and accelerate test process, realizes quick test.
Description
Technical field
The utility model belongs to technical field of lithium ion, and in particular to a kind of lithium ion battery separator guarantor liquid rate test
Device.
Background technique
Lithium ion battery: being a kind of secondary cell (rechargeable battery), it relies primarily on lithium ion between a positive electrode and a negative electrode
Movement carrys out work.In charge and discharge process, Li+Insertion and deintercalation back and forth between two electrodes.When charging, Li+It is de- from anode
It is embedding, it is embedded in cathode by electrolyte, cathode is in lithium-rich state；It is then opposite when electric discharge.
Lithium ion battery is because having many advantages, such as that energy density is high, having extended cycle life, light weight, fast charging and discharging, in recent years
As the hot spot of novel power supply technical research, especially it is concerned in high-energy and high power field.As lithium ion battery
One of core material, its cost accounts for the 25%~30% of entire battery production cost in the production of lithium batteries, in recent years high to meet
Sci-tech product needs, it is desirable that battery diaphragm chemical stability is good, mechanical strength is big, the thickness of film is thin, breaking current, keeps electricity
Solve the advantages that liquid rate is high.But battery diaphragm keeps the performance test of electrolyte rate to add beaker mode to survey by hand by balance mostly at present
Examination, test result are not sufficiently stable, and there are certain errors, and need to repeatedly measure can just obtain reliable results, in the above context, this reality
Liquid rate test device is protected with a kind of battery diaphragm of new design.
Such as, application publication number is that the patent document of CN102901688A discloses a kind of liquid absorption rate of battery diaphragm to the prior art
Detection method, which removes membrane surface extra infiltration after the completion of diaphragm imbibition by the way of two layers of filter paper and ballast
Liquid, this method are not only easy to make diaphragm impaired, can also because of filter paper limited sorption capacity and cause membrane surface immersion fluid to be gone
The drawbacks of except testing result is not influenced completely；For another example, application publication number be CN103926185A patent document disclose lithium from
Detection device, the detection method of sub- liquid absorption rate of battery diaphragm, the patent pallet place diaphragm sample, avoid diaphragm impaired, but its
Diaphragm does not remove membrane surface excess electrolyte after soaking, and there is a problem of testing result inaccuracy.
Utility model content
The purpose of this utility model is to provide a kind of lithium ion battery separators to protect liquid rate test device, and the present apparatus is essence
Really, fast test battery diaphragm protects liquid rate and provides a kind of new way.
To achieve the above object, the measure that the utility model is taken are as follows:
A kind of lithium ion battery separator guarantor liquid rate test device, the lithium ion battery separator protect liquid rate test device and include
Set membrane, dipping tank and wraping plate shaking table, in which:
It is described to set membrane, including the metallic sieve for placing battery diaphragm, and it is fixed on one jiao of metallic sieve portable
Bar, the metallic sieve are the laminated structure that the surface with setting thickness is evenly equipped with sieve pore, and the hand-held rod upper end is equipped with curved
Folding part；
The dipping tank is tubular structure, and one end of the tubular structure is open architecture, as the leaching for setting membrane
Stain entrance, the tubular structure inside are equipped with for impregnating the cavity for setting membrane, and the inside cavity is contained with electrolyte,
The dipping tank is fixed with snap ring in open end side, and the snap ring is arranged along open architecture outer rim, and the snap ring is set with described
The bending part of membrane cooperates；
The wraping plate shaking table sets membrane after impregnating for placing, and the wraping plate shaking table persistently generates in the operating condition
The swing of specific action.
Preferably, the metallic sieve is corrosion resistant stainless steel material, and the setting of the metallic sieve is with a thickness of 0.24
~0.50mm, the screen-aperture of the metallic sieve are 0.125~0.180mm.
The thickness of metallic sieve is set so that membrane overall weight is set in optimum range, convenient for setting the flexible behaviour of membrane
Make, metallic sieve screen-aperture setting not only can avoid small volume battery diaphragm fall, can also reduce battery diaphragm with
The contact area of metallic sieve increases the infiltrating area of electrolyte, accelerates the impregnating speed of battery diaphragm.
Preferably, the height of the hand-held rod is 20~35cm.
Preferably, the specific action of the wraping plate shaking table are as follows: wraping plate swing speed is 45~60rad/min, the wraping plate amplitude of oscillation
For 20~30mm, duration of oscillation is 2.5~5min.
The utility model is dipped to during last weighing from battery diaphragm, using setting membrane placing battery diaphragm, nothing
Tweezers or human contact's battery diaphragm need to be used, can avoid generating liquid quality in diaphragm because appliance causes diaphragm to be squeezed
It reduces and influences test result, while avoid makes it lead to the problem of damage because external force excessively acts on battery diaphragm.?
In diaphragm soaking process, position is carried out using the snap ring mutual cooperation of the bending part and dipping tank of hand-held rod and is fixed, can not only be kept away
Exempt to be easy to produce shake when hand-held, there is battery diaphragm to expose electrolyte and cause battery diaphragm part that can not impregnate imbibition
The drawbacks of, the stabilization of battery diaphragm in imbibition process can be also kept, avoids influencing imbibition effect.It is completed in battery diaphragm imbibition
Afterwards, excess electrolyte in battery diaphragm is removed using wraping plate shaking table, and the processing mode of wraping plate shaking table is fixed, and is avoided traditional artificial
Liquid drip-dry mode influence factor is more and easily causes liquid and removes the problem of not influencing test result completely.
The battery diaphragm of the utility model design protects liquid rate test device, using fixation, stable processing mode, realizes essence
Really measurement, the drawbacks of capable of obtaining reliable results need to repeatedly be measured just by avoiding, and accelerate test process, realize quick test.
Detailed description of the invention
Fig. 1 is the top view that the utility model sets membrane；
Fig. 2 is the side view that the utility model sets membrane；
Fig. 3 is that the utility model sets the schematic diagram that membrane is placed on wraping plate shaking table.
Fig. 4 is the structural schematic diagram of the utility model dipping tank.
Specific embodiment
Technical solutions of the utility model are described in further details with reference to the accompanying drawings and examples, and following embodiment is not
Constitute the restriction to the utility model.
Embodiment 1:
The present embodiment provides a kind of lithium ion battery separators to protect liquid rate test device, including sets membrane, dipping tank 4 and wraping plate
Shaking table 3.
Referring to Fig.1, Fig. 2, setting membrane includes the metallic sieve 1 for placing battery diaphragm, and is fixed on metallic sieve 1 one
The hand-held rod 2 at angle, metallic sieve 1 are the laminated structure that the surface with setting thickness is evenly equipped with sieve pore, and 2 upper end of hand-held rod is equipped with
Bending part 21.
In the present embodiment, metallic sieve 1 is corrosion resistant stainless steel material, the setting of metallic sieve 1 with a thickness of 0.32mm,
The screen-aperture of metallic sieve 1 is 0.150mm；Hand-held rod 2 in order to improve the stability set when membrane is hung up, in the present embodiment
Using rectangular parallelepiped structure, and hand-held rod 2 is fixed with metallic sieve 1 to be vertical, and the height of hand-held rod 2 is 25cm.In other implementations
In, the parameter of metallic sieve 1 and hand-held rod 2 can adjust according to actual needs.
Referring to Fig. 4, dipping tank 4 is tubular structure, and one end of tubular structure is open architecture, as setting being impregnated into for membrane
Mouthful, it is equipped with inside tubular structure for impregnating the cavity 41 for setting membrane, inside cavity is contained with electrolyte, and dipping tank 4 is being open
End side is fixed with snap ring 42, and snap ring 42 is arranged along 41 outer rim of cavity, and snap ring 42 cooperates with the bending part 21 for setting membrane.
In the present embodiment, dipping tank 4 is specifically equipped with opening, circle using cylindrical structure and in the upper bottom surface of cylindrical structure
Column body is equipped with cylindrical shape cavity, and snap ring 42 is arranged along the rims of cylindrical body upper bottom surface.
Referring to Fig. 3, wraping plate shaking table 3, which is used to place after impregnating, sets membrane, and wraping plate shaking table 3 persistently generates under the transition that works
The swing of specific action.The specific action of wraping plate shaking table 3 in the present embodiment are as follows: wraping plate swing speed is 45~60rad/min, is stuck up
The plate amplitude of oscillation is 20~30mm, and duration of oscillation is 2.5~5min.Wraping plate shaking table 3 in the present apparatus uses existing component, such as: SK-
The wraping plate shaking table of the models such as R330-Pro, SK-R1807-S, SK-R1807-E, therefore no longer the structure of wraping plate shaking table is carried out herein
It repeats.
Embodiment 2:
On the basis of 1 test device of embodiment, the present embodiment provides lithium ion batteries to protect liquid rate test method, specific to grasp
Steps are as follows for work:
1) battery diaphragm sample, is taken, battery diaphragm sample quality is weighed with electronic balance, is denoted as G0；
2) battery diaphragm sample, is put in 1 upper surface of metallic sieve, and operates hand-held rod 2 for metallic sieve 1 together with battery
Diaphragm sample is put into dipping tank, and setting membrane by the bending part 21 of 2 upper end of hand-held rod, to be fixed on battery diaphragm sample complete
Position in the electrolytic solution is impregnated, battery diaphragm sample is made to be located at 6cm under liquid level of electrolyte, stands 30min；
3), after battery diaphragm sample impregnates completely, operation hand-held rod takes metallic sieve 1 together with battery diaphragm sample
Out, and it is put in 3 upper surface of wraping plate shaking table, battery diaphragm sample surfaces remnants electrolyte, control is removed by the swing of wraping plate shaking table 3
3 parameter of wraping plate shaking table processed are as follows: wraping plate swing speed is 50rad/min, and the wraping plate amplitude of oscillation is 25mm, duration of oscillation 3min；
4) after, swinging to wraping plate shaking table 3, battery diaphragm sample is placed on electronic balance together with metallic sieve 1
On weigh quality, be denoted as G1；
5) the battery diaphragm sample put on an electronic balance in step 4, is taken away with tweezers, weighs 1 mass of metallic sieve,
It is denoted as G2；
6) guarantor's liquid rate A of battery diaphragm sample, is calculated are as follows: A=(G1-G2-G0)/G0× 100%.
Wherein, the weighing accuracy of electronic balance is 0.01mg.
Above embodiments are only to illustrate the technical solution of the utility model rather than are limited, without departing substantially from this reality
In the case where novel spirit and its essence, those skilled in the art are various corresponding when that can be made according to the utility model
Change and modification, but these corresponding changes and modifications all should belong to the protection model of the utility model the attached claims
It encloses.
Claims (4)
1. a kind of lithium ion battery separator protects liquid rate test device, which is characterized in that the lithium ion battery separator is protected liquid rate and surveyed
Trial assembly is set including setting membrane, dipping tank and wraping plate shaking table, in which:
It is described to set membrane, including the metallic sieve for placing battery diaphragm, and it is fixed on one jiao of metallic sieve of hand-held rod, institute
Stating metallic sieve is the laminated structure that the surface with setting thickness is evenly equipped with sieve pore, and the hand-held rod upper end is equipped with bending part；
The dipping tank is tubular structure, and one end of the tubular structure is open architecture, sets being impregnated into for membrane as described
Mouthful, it is equipped with inside the tubular structure for impregnating the cavity for setting membrane, the inside cavity is contained with electrolyte, described
Dipping tank is fixed with snap ring in open end side, and the snap ring is arranged along open architecture outer rim, and the snap ring sets membrane with described
Bending part cooperate；
The wraping plate shaking table sets membrane after impregnating for placing, and the wraping plate shaking table persistently generates specific in the operating condition
The swing of movement.
2. lithium ion battery separator as described in claim 1 protects liquid rate test device, which is characterized in that the metallic sieve is
Corrosion resistant stainless steel material, the setting of the metallic sieve is with a thickness of 0.24~0.50mm, the sieve pore hole of the metallic sieve
Diameter is 0.125~0.180mm.
3. lithium ion battery separator as described in claim 1 protects liquid rate test device, which is characterized in that the height of the hand-held rod
Degree is 20~35cm.
4. lithium ion battery separator as described in claim 1 protects liquid rate test device, which is characterized in that the wraping plate shaking table
Specific action are as follows: wraping plate swing speed be 45~60rad/min, the wraping plate amplitude of oscillation be 20~30mm, duration of oscillation be 2.5~
5min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820776605.3U CN208505857U (en) | 2018-05-23 | 2018-05-23 | A kind of lithium ion battery separator guarantor liquid rate test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820776605.3U CN208505857U (en) | 2018-05-23 | 2018-05-23 | A kind of lithium ion battery separator guarantor liquid rate test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208505857U true CN208505857U (en) | 2019-02-15 |
Family
ID=65293725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820776605.3U Expired - Fee Related CN208505857U (en) | 2018-05-23 | 2018-05-23 | A kind of lithium ion battery separator guarantor liquid rate test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208505857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879651A (en) * | 2020-06-28 | 2020-11-03 | 深圳市星源材质科技股份有限公司 | Method for testing liquid absorption rate and liquid retention rate of diaphragm |
-
2018
- 2018-05-23 CN CN201820776605.3U patent/CN208505857U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879651A (en) * | 2020-06-28 | 2020-11-03 | 深圳市星源材质科技股份有限公司 | Method for testing liquid absorption rate and liquid retention rate of diaphragm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 Termination date: 20210523 |