CN208188252U - Lithium ion battery separator breakdown voltage test system and system - Google Patents
Lithium ion battery separator breakdown voltage test system and system Download PDFInfo
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- CN208188252U CN208188252U CN201820462190.2U CN201820462190U CN208188252U CN 208188252 U CN208188252 U CN 208188252U CN 201820462190 U CN201820462190 U CN 201820462190U CN 208188252 U CN208188252 U CN 208188252U
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- breakdown voltage
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- ion battery
- battery separator
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Abstract
The utility model provides a kind of lithium ion battery separator breakdown voltage test system and system, the lithium ion battery separator breakdown voltage test system and system of the utility model can count the breakdown point generated on entire volume diaphragm by applying limiting voltage on diaphragm, the proof voltage situation that entire volume diaphragm can be confirmed by the case where statistics breakdown point, can effectively accomplish the statistics of entire volume diaphragm proof voltage situation；Meanwhile the lithium ion battery separator breakdown voltage test system and system of the utility model can also simulate failure conditions of the entire volume diaphragm under the voltage of Hi-pot test short circuit, can have preferable directiveness to diaphragm as needed of choosing.
Description
Technical field
The utility model belongs to technical field of lithium ion, more particularly to a kind of lithium ion battery separator breakdown voltage
Test device and system.
Background technique
Since with preferable chemical stability and excellent physical property, microporous polyethylene film is widely used in two
Secondary lithium ion battery, such as: battery of mobile phone, Notebook Battery, power tool battery and power vehicle battery.In lithium-ion electric
Chi Zhong, the main function of diaphragm are to separate the positive and negative anodes of battery, prevent the two poles of the earth contact and it is short-circuit；Add in general battery
During work, since the dust and burr of positive and negative anodes are all the factors for being easy to bring short circuit, therefore general lithium ion battery producer exists
After completing battery core assembling procedure, short circuit can be tested under high pressure to it, to pick out the battery core for being easy short circuit.
Previous diaphragm proof voltage test predominantly using by the way of static, on one group of metal platform placement one every
Then one piece of metal plate or rodlike metal block is being placed above again in film；Metal platform and metal plate or rodlike metal block are connected
It connects and measures the value that can puncture diaphragm on breakdown voltage tester.However, the above method can not be to the entire of diaphragm
Film surface measures, and is unable to characterize the practical proof voltage situation of entire diaphragm.
Utility model content
In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide a kind of lithium ion battery separators
Breakdown voltage test system and system, cannot be to the entire film surface of diaphragm for solving diaphragm proof voltage test in the prior art
The problem of measuring, being unable to characterize the practical proof voltage situation of entire diaphragm.
In order to achieve the above objects and other related objects, the utility model provides a kind of lithium ion battery separator breakdown voltage
Test device, the lithium ion battery separator breakdown voltage test system include at least:
First bottom plate；
At least two first support plates, parallel interval are set to the upper surface of first bottom plate；In first support plate
It is equipped with through-hole and lower through-hole, the upper through-hole and the lower through-hole run through institute along the thickness direction of first support plate
State the first support plate；
Lower shaft insulation, between two first support plates；
Upper shaft insulation between two first support plates, and is located at the top of the lower shaft insulation, the upper insulation
Axis and the lower shaft insulation are arranged in parallel and have spacing；
At least two lower bearings, the lower bearing are symmetrically disposed on the both ends of the lower shaft insulation, and the lower bearing is separate
One end of the lower shaft insulation via the lower through-hole run through first support plate, and the central axes of the lower bearing with it is described
The central axes of lower shaft insulation are located along the same line；
At least two upper bearing (metal)s, the upper bearing (metal) are symmetrically disposed on the both ends of the upper shaft insulation, and the upper bearing (metal) is separate
One end of the upper shaft insulation via the upper through-hole run through first support plate, and the central axes of the upper bearing (metal) with it is described
The central axes of upper shaft insulation are located along the same line；
Lower conductive rollers are placed on the outer wall of the lower shaft insulation；
Upper conductive rollers are placed on the outer wall of the upper shaft insulation, and are located at the surface of the lower conductive rollers；
First wire guide, the axial and described lower shaft insulation along the lower bearing axially penetrate through the lower shaft insulation and position
The lower bearing in the lower shaft insulation both ends；
Second wire guide extends to the lower shaft insulation from the surface that the lower shaft insulation is bonded with the lower conductive rollers
It is interior, and be connected with first wire guide；
Privates hole, the axial and described upper shaft insulation along the upper bearing (metal) axially penetrate through the upper shaft insulation and position
The upper bearing (metal) in the upper shaft insulation both ends；
Privates hole extends to the upper shaft insulation from the surface that the upper shaft insulation is bonded with the upper conductive rollers
It is interior, and be connected with the privates hole.
A kind of preferred embodiment of lithium ion battery separator breakdown voltage test system as the utility model, leads under described
Electric roller is placed on the middle part of the lower shaft insulation, and the upper conductive rollers are placed on the middle part of the upper shaft insulation.
A kind of preferred embodiment of lithium ion battery separator breakdown voltage test system as the utility model is described lower logical
The central axes in hole are located along the same line with the central axes of the lower bearing and the central axes of the lower shaft insulation, the upper through-hole
Central axes be located along the same line with the central axes of the upper bearing (metal) and the central axes of the upper shaft insulation.
A kind of preferred embodiment of lithium ion battery separator breakdown voltage test system as the utility model, it is described exhausted
Edge axis and the lower shaft insulation are Teflon axis, and the upper conductive rollers and the lower conductive rollers are conducting rubber roller.
A kind of preferred embodiment of lithium ion battery separator breakdown voltage test system as the utility model, described first
The perpendicular on the surface of support plate and first bottom plate.
A kind of preferred embodiment of lithium ion battery separator breakdown voltage test system as the utility model, described first
Support plate includes:
Lower supporting plate is set to the upper surface of first bottom plate；
Upper backup pad is set to the top of the lower supporting plate；
The lower through-hole is located in the lower supporting plate, and the upper through-hole is located in the upper backup pad.
The utility model also provides a kind of lithium ion battery separator breakdown voltage test macro, the lithium ion battery separator
Breakdown voltage test macro includes at least:
The lithium ion battery separator breakdown voltage test system as described in above-mentioned either a program；
Unwinding rack, positioned at the side of the lithium ion battery separator breakdown voltage test system, the unwinding rack is at least wrapped
It includes and unreels disk, the end face for unreeling disk is parallel with the end face of the end face of the lower shaft insulation and the upper shaft insulation；
Rolling frame, positioned at the side of the lithium ion battery separator breakdown voltage test system far from the unwinding rack, institute
Rolling frame is stated including at least closed reel, the end face of the closed reel is parallel with the end face for unreeling disk.
A kind of preferred embodiment of lithium ion battery separator breakdown voltage test macro as the utility model, it is described to unreel
The width of the width of disk and the closed reel be more than or equal to the upper conductive rollers width and the lower conductive rollers it is of same size,
And described unreel disk and the closed reel and the upper conductive rollers and the lower conductive rollers are unreeling disk, the upper conduction along described
It is correspondingly arranged on the arragement direction of roller and the closed reel.
A kind of preferred embodiment of lithium ion battery separator breakdown voltage test macro as the utility model, it is described to unreel
Frame further include:
Second bottom plate；
Second support plate is set to the upper surface of second bottom plate, and parallel with first support plate；
First rotating shaft positioned at the side of second support plate, and vertical with second support plate is connect；
The disk that unreels is placed in the first rotating shaft, and the side of the end face for unreeling disk and second support plate
Face is parallel.
A kind of preferred embodiment of lithium ion battery separator breakdown voltage test macro as the utility model, the winding
Frame further include:
Third bottom plate；
Third support plate is set to the upper surface of the third bottom plate, and parallel with first support plate；
Second shaft positioned at the side of the third support plate, and extends vertically through the third support plate；
The closed reel is placed in second shaft, and the side of the end face of the closed reel and the third support plate
Face is parallel；
Rocking bar, positioned at the side of the third support plate far from the closed reel, and with second shaft far from described
One end of closed reel is connected.
A kind of preferred embodiment of lithium ion battery separator breakdown voltage test macro as the utility model, the lithium from
Sub- battery diaphragm breakdown voltage test system further include:
Breakdown voltage test system；
Conducting wire runs through first wire guide, second wire guide, the privates hole and the privates
Hole, the conducting wire are connected with the breakdown voltage test system, the lower conductive rollers and the upper conductive rollers.
As described above, the utility model provides a kind of lithium ion battery separator breakdown voltage test system and system, have
Below the utility model has the advantages that the lithium ion battery separator breakdown voltage test system and system of the utility model can be by diaphragms
Apply the breakdown point generated on limiting voltage statistics entire volume diaphragm, entire volume diaphragm can be confirmed by the case where statistics breakdown point
Proof voltage situation, can effectively accomplish the statistics of entire volume diaphragm proof voltage situation；Meanwhile the lithium ion battery of the utility model
Diaphragm breakdown voltage test system and system can also simulate failure conditions of the entire volume diaphragm under the voltage of Hi-pot test short circuit,
There can be preferable directiveness to diaphragm as needed of choosing.
Detailed description of the invention
Fig. 1 is shown as the vertical of the lithium ion battery separator breakdown voltage test system provided in the utility model embodiment one
Body structural schematic diagram.
Fig. 2 is shown as in the lithium ion battery separator breakdown voltage test system provided in the utility model embodiment one
The schematic perspective view of lower shaft insulation and lower bearing.
Fig. 3 is shown as in the lithium ion battery separator breakdown voltage test system provided in the utility model embodiment one
The schematic perspective view of upper shaft insulation and upper bearing (metal).
Fig. 4 is shown as the vertical of the lithium ion battery separator breakdown voltage test macro provided in the utility model embodiment two
Body structural schematic diagram.
Component label instructions
1 lithium ion battery separator breakdown voltage test system
11 first bottom plates
12 first support plates
121 lower through-holes
Through-hole on 122
123 lower supporting plates
124 upper backup pads
13 lower shaft insulations
Shaft insulation on 14
15 lower bearings
16 upper bearing (metal)s
17 lower conductive rollers
Conductive rollers on 18
191 first wire guides
192 second wire guides
193 privates holes
194 privates holes
2 unwinding racks
21 unreel disk
22 second bottom plates
23 second support plates
24 first rotating shafts
3 rolling frames
31 closed reels
32 third bottom plates
33 third support plates
34 second shafts
35 rocking bars
Specific embodiment
Illustrate the embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this theory
Content disclosed by bright book understands other advantages and effect of the utility model easily.The utility model can also be by addition
Different specific embodiments are embodied or practiced, and the various details in this specification can also be based on different viewpoints and answer
With carrying out various modifications or alterations under the spirit without departing from the utility model.
It please refers to Fig.1 to Fig.4.It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to
Cooperate the revealed content of specification, so that those skilled in the art understands and reads, is not intended to limit the utility model
Enforceable qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or size
Adjustment, in the case where not influencing the effect of the utility model can be generated and the purpose that can reach, should all still fall in the utility model
Revealed technology contents obtain in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower", " left side ",
The term on " right side ", " centre " and " one " etc. is merely convenient to being illustrated for narration, rather than enforceable to limit the utility model
Range, relativeness are altered or modified, under the content of no substantial changes in technology, enforceable when being also considered as the utility model
Scope.
Embodiment one
It please refers to Fig.1 to Fig.3, the utility model provides a kind of lithium ion battery separator breakdown voltage test system 1, described
Lithium ion battery separator breakdown voltage test system 1 includes at least: the first bottom plate 11；At least two first support plates 12, described in two
12 parallel interval of support plate is set to the upper surface of first bottom plate 11；Through-hole is equipped in first support plate 12
122 and lower through-hole 121, the thickness direction of the upper through-hole 122 and the lower through-hole 121 along first support plate 12 run through
First support plate 12；Lower shaft insulation 13, the lower shaft insulation 13 is between two first support plates 12；Upper shaft insulation
14, the upper shaft insulation 14 between two first support plates 12, and be located at the lower shaft insulation 13 top, it is described on
Shaft insulation 14 and the lower shaft insulation 13 are arranged in parallel and have spacing；At least two lower bearings 15, the lower bearing 15 is symmetrically
The both ends of the lower shaft insulation 13 are set to, the one end of the lower bearing 15 far from the lower shaft insulation 13 is via the lower through-hole
121 run through first support plate 12, and the central axes of the lower bearing 15 and the central axes of the lower shaft insulation 13 are located at together
On one straight line；At least two upper bearing (metal)s 16, the upper bearing (metal) 16 are symmetrically disposed on the both ends of the upper shaft insulation 14, the upper axis
It holds 16 one end far from the upper shaft insulation 14 and runs through first support plate 12, and the upper axis via the upper through-hole 122
It holds 16 central axes and the central axes of the upper shaft insulation 14 is located along the same line；Lower conductive rollers 17, the lower conductive rollers 17
It is placed on the outer wall of the lower shaft insulation 13；Upper conductive rollers 18, the upper conductive rollers 18 are placed on the upper shaft insulation 14
On outer wall, and it is located at the surface of the lower conductive rollers 17；Gap between the upper conductive rollers 18 and the lower conductive rollers 17
It is very small, it is preferably suitable with the thickness of diaphragm to be tested, both can ensure that the diaphragm can pass through the upper conductive rollers 18 with
The gap of the lower conductive rollers 17, but can ensure that can be right when having voltage in the upper conductive rollers 18 and the lower conductive rollers 17
The diaphragm carries out proof voltage test；First wire guide 191, first wire guide 191 along the lower bearing 15 axial direction and
The lower shaft insulation 13 axially penetrates through the lower shaft insulation 13 and the lower bearing 15 positioned at lower 13 both ends of shaft insulation；
Second wire guide 192, second wire guide 192 extend from the surface that the lower shaft insulation 13 is bonded with the lower conductive rollers 17
In to the lower shaft insulation 13, and it is connected with first wire guide 191；Privates hole 193, the privates hole
193 along the upper bearing (metal) 16 axial and described upper shaft insulation 14 axially penetrate through the upper shaft insulation 14 and be located at it is described it is upper absolutely
The upper bearing (metal) 16 at 14 both ends of edge axis；Privates hole 194, the privates hole 194 is from the upper shaft insulation 14 and institute
The surface for stating the fitting of conductive rollers 18 extends in the upper shaft insulation 14, and is connected with the privates hole 193.
As an example, the lower conductive rollers 17 are placed on the middle part of the lower shaft insulation 13, the upper conductive rollers 18 are nested with
In the middle part of the upper shaft insulation 14.
As an example, the central axes and the lower shaft insulation 13 of the central axes of the lower through-hole 121 and the lower bearing 15
Central axes be located along the same line, the central axes of the upper through-hole 122 and the central axes of the upper bearing (metal) 16 and it is described it is upper absolutely
The central axes of edge axis 14 are located along the same line.
As an example, the material of the upper shaft insulation 14 and the lower shaft insulation 13 can be selected according to actual needs
It selects, it is preferable that upper shaft insulation 14 and the lower shaft insulation 13 are Teflon axis described in the present embodiment；The upper conductive rollers 18
And the material of the lower conductive rollers 17 can be set according to actual needs, it is preferable that in the present embodiment, the upper conductive rollers
18 and the lower conductive rollers 17 be conducting rubber roller.
As an example, the perpendicular on the surface of first support plate 12 and first bottom plate 11.Certainly, at it
In his example, the surface of the surface of first support plate 12 and first bottom plate 11 can also tilt certain angle.
In one example, first support plate 12 includes: lower supporting plate 123, and the lower supporting plate 123 is set to described
The upper surface of first bottom plate 11；Upper backup pad 124, the upper backup pad 124 are set to the top of the lower supporting plate 123；Institute
It states lower through-hole 121 to be located in the lower supporting plate 123, the upper through-hole 122 is located in the upper backup pad 123.Specifically, institute
Stating upper backup pad 124 and the lower supporting plate 123 can be an integral molding structure, or be fixed on one by fixed device
The separate structure risen.Certainly, in other examples, first support plate 12 or a monolith support plate.
Embodiment two
Incorporated by reference to Fig. 1 to Fig. 3 refering to Fig. 4, the utility model also provides a kind of lithium ion battery separator breakdown voltage test
System, the lithium ion battery separator breakdown voltage test macro include at least: the lithium ion battery as described in embodiment one
Diaphragm breakdown voltage test system 1；Unwinding rack 2, the unwinding rack 2 are located at lithium ion battery separator breakdown voltage test dress
1 side is set, the unwinding rack 2 includes at least and unreels disk 21, the end of the end face for unreeling disk 21 and the lower shaft insulation 13
Face and the end face of the upper shaft insulation 14 are parallel；Rolling frame 3, the rolling frame 3 are located at lithium ion battery separator breakdown
Side of the voltage test device 1 far from the unwinding rack 2, the rolling frame 3 include at least closed reel 31, the closed reel 31
End face is parallel with the end face for unreeling disk 21.
As an example, the disk 21 that unreels is mainly used for placing the diaphragm of entire volume, convenient for unreeling for the diaphragm；The receipts
Reel 31 is mainly used for the diaphragm after winding test, while diaphragm being driven to advance.
As an example, the width of the width for unreeling disk 21 and the closed reel 31 is more than or equal to the upper conductive rollers 18
Width and the lower conductive rollers 17 it is of same size, i.e., the width of the described diaphragm is greater than width and the institute of the upper conductive rollers 18
The width of lower conductive rollers 17 is stated, can be gone on smoothly with ensuring to test；It is described unreel disk 21 and the closed reel 31 and it is described on
Conductive rollers 18 and the lower conductive rollers 17 are along the arrangement side for unreeling disk 21, the upper conductive rollers 18 and the closed reel 31
It is correspondingly arranged upwards, may insure the diaphragm for unreeling the releasing of disk 21 by the upper conductive rollers 18 and the lower conduction in this way
After testing between roller 17 during the entire process of winding to the closed reel 31, the diaphragm is linearly moved.
As an example, the unwinding rack 2 further include: the second bottom plate 22；Second support plate 23, second support plate 23 are set
It is placed in the upper surface of second bottom plate 22, and parallel with first support plate 12；First rotating shaft 24, second shaft
24 be located at second support plate 23 side, and it is vertical with second support plate 23 connect, specifically, second shaft
24 one end can be set in the one side of second support plate 23；The disk 21 that unreels is placed in the first rotating shaft
24, and the end face for unreeling disk 21 is parallel with the side of second support plate 23.
As an example, the rolling frame 3 further include: third bottom plate 32；Third support plate 33, the third support plate 33 are set
It is placed in the upper surface of the third bottom plate 32, and parallel with first support plate 12；Second shaft 34, second shaft
34 are located at the side of the third support plate 33, and extend vertically through the third support plate 33；The closed reel 31 is placed on institute
It states in the second shaft 34, and the end face of the closed reel 31 is parallel with the side of the third support plate 33；Rocking bar 35, it is described
Rocking bar 35 is located at side of the third support plate 33 far from the closed reel 31, and with second shaft 34 far from the receipts
One end of reel 31 is connected.
As an example, the lithium ion battery separator breakdown voltage test system further include: breakdown voltage tester (does not show
Out)；Conducting wire (not shown), the conducting wire run through first wire guide 191, second wire guide 192, the privates
Hole 193 and the privates hole 194, the conducting wire and the breakdown voltage tester, the lower conductive rollers 17 and it is described on
Conductive rollers 18 are connected.
As an example, the breakdown voltage test system may include breakdown voltage tester and breakdown voltage resistant equipment.
The lithium ion battery separator breakdown voltage test macro of the utility model can be used for the breakdown point under limiting voltage
Test, method particularly includes: it tests to obtain using diaphragm progress breakdown voltage of the breakdown voltage tester to different model different
Breakdown voltage resistant equipment is connected via the conducting wire with the upper conductive rollers 18 and the lower conductive rollers 17 by breakdown voltage value
It connects, using the constant pressure test function in breakdown voltage resistant equipment, different model diaphragm is tested under corresponding voltage, complete
Diaphragm after removing test from the closed reel 31 afterwards, the breakdown point on the diaphragm after lamp box and microscopically observation test
Quantity and size can be seen if the length of the diaphragm after test is longer on the online defect inspection instrument of CCD (charge coupled cell)
The quantity of breakdown point on diaphragm after examining test.With the diaphragm with a thickness of 16 μm and 20 μm as an example, test after data such as
Shown in following table:
| Membrane thicknesses (limiting voltage) | Voltage breakdown in diaphragm unit length counts (a/m) |
| 20μm(2000V) | 354 |
| 16μm(1800V) | 483 |
Upper right table is it is found that the lithium ion battery separator breakdown voltage test macro using the utility model can be convenient fast
Ground obtains characteristic of the diaphragm of different model under corresponding limiting voltage.
The lithium ion battery separator breakdown voltage test macro of the utility model can be used under Hi-pot test short-circuit voltage
Breakdown point test, method particularly includes: by breakdown voltage resistant equipment via the conducting wire and the upper conductive rollers 18 and it is described under
Conductive rollers 17 are connected, using the constant pressure test function in breakdown voltage resistant equipment, to different model diaphragm 200V, 500V,
Tested under the voltage of 1000V and 1500V, the diaphragm after removing test from the closed reel 31 after the completion, in lamp box and
The quantity and size of breakdown point on diaphragm after microscopically observation test, if the length of the diaphragm after test is longer, Ke Yi
CCD (charge coupled cell) observes the quantity of breakdown point on the diaphragm after test on line defect inspection instrument.With a thickness of 7 μm, 9
μm, 12 μm, the diaphragms of 16 μm and 20 μm is as an example, the data after test are as shown in the table:
As seen from the above table, it can be convenient fast using the lithium ion battery separator breakdown voltage test macro of the utility model
Ground obtains characteristic of the diaphragm of different model under otherwise limit voltage: the thicker diaphragm of thickness needs to apply bigger voltage side
Short-circuit conditions can be tested out, can effectively know and use the biggish diaphragm of thickness when testing breakdown voltage using biggish
Pressure；Meanwhile needing to carry out detailed assessment for the diaphragm of thinner thickness and can carry out importing design, to prevent safety
Accident.
In conclusion the utility model provides a kind of lithium ion battery separator breakdown voltage test system and system, it is described
Lithium ion battery separator breakdown voltage test system includes at least: the first bottom plate；At least two first support plates, parallel interval setting
In the upper surface of first bottom plate；It is equipped with through-hole and lower through-hole in first support plate, the upper through-hole and described
Lower through-hole runs through first support plate along the thickness direction of first support plate；Lower shaft insulation is located at two described first
Between support plate；Upper shaft insulation, between two first support plates, and be located at the lower shaft insulation top, it is described on
Shaft insulation and the lower shaft insulation are arranged in parallel and have spacing；At least two lower bearings, the lower bearing are symmetrically disposed on institute
The both ends of lower shaft insulation are stated, the one end of the lower bearing far from the lower shaft insulation runs through described first via the lower through-hole
Fagging, and the central axes of the lower bearing and the central axes of the lower shaft insulation are located along the same line；At least two upper bearing (metal)s, institute
The both ends that upper bearing (metal) is symmetrically disposed on the upper shaft insulation are stated, the one end of the upper bearing (metal) far from the upper shaft insulation is via institute
Through-hole is stated through first support plate, and the central axes of the upper bearing (metal) and the central axes of the upper shaft insulation are positioned at same
On straight line；Lower conductive rollers are placed on the outer wall of the lower shaft insulation；Upper conductive rollers are placed on the outer wall of the upper shaft insulation
On, and it is located at the surface of the lower conductive rollers；First wire guide, along the axis of the axial and described lower shaft insulation of the lower bearing
To the lower bearing through the lower shaft insulation and positioned at the lower shaft insulation both ends；Second wire guide, from the lower insulation
The surface that axis is bonded with the lower conductive rollers extends in the lower shaft insulation, and is connected with first wire guide；Third
Wire guide, along the upper bearing (metal) axial and described upper shaft insulation axially penetrate through the upper shaft insulation and be located at the upper insulation
The upper bearing (metal) at axis both ends；Privates hole extends to institute from the surface that the upper shaft insulation is bonded with the upper conductive rollers
It states in shaft insulation, and is connected with the privates hole.The lithium ion battery separator breakdown voltage of the utility model is tested
Apparatus and system can count the breakdown point generated on entire volume diaphragm by applying limiting voltage on diaphragm, be punctured by statistics
The case where point, can confirm the proof voltage situation of entire volume diaphragm, can effectively accomplish the statistics of entire volume diaphragm proof voltage situation；
Meanwhile the lithium ion battery separator breakdown voltage test system and system of the utility model can also simulate entire volume diaphragm in high pressure
The failure conditions under the voltage of short circuit are tested, there can be preferable directiveness to diaphragm as needed of choosing.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (11)
1. a kind of lithium ion battery separator breakdown voltage test system, which is characterized in that the lithium ion battery separator breakdown potential
Compression testing device includes at least:
First bottom plate；
At least two first support plates, parallel interval are set to the upper surface of first bottom plate；It is all provided in first support plate
There are upper through-hole and a lower through-hole, the upper through-hole and the lower through-hole are along the thickness direction of first support plate through described the
One support plate；
Lower shaft insulation, between two first support plates；
Upper shaft insulation, between two first support plates, and be located at the lower shaft insulation top, the upper shaft insulation with
The lower shaft insulation is arranged in parallel and has spacing；
At least two lower bearings, the lower bearing are symmetrically disposed on the both ends of the lower shaft insulation, and the lower bearing is far from described
One end of lower shaft insulation via the lower through-hole run through first support plate, and the central axes of the lower bearing and it is described it is lower absolutely
The central axes of edge axis are located along the same line；
At least two upper bearing (metal)s, the upper bearing (metal) are symmetrically disposed on the both ends of the upper shaft insulation, and the upper bearing (metal) is far from described
One end of upper shaft insulation via the upper through-hole run through first support plate, and the central axes of the upper bearing (metal) and it is described it is upper absolutely
The central axes of edge axis are located along the same line；
Lower conductive rollers are placed on the outer wall of the lower shaft insulation；
Upper conductive rollers are placed on the outer wall of the upper shaft insulation, and are located at the surface of the lower conductive rollers；
First wire guide, along the lower bearing axial and described lower shaft insulation axially penetrate through the lower shaft insulation and be located at institute
State the lower bearing at lower shaft insulation both ends；
Second wire guide extends in the lower shaft insulation from the surface that the lower shaft insulation is bonded with the lower conductive rollers, and
It is connected with first wire guide；
Privates hole, along the upper bearing (metal) axial and described upper shaft insulation axially penetrate through the upper shaft insulation and be located at institute
State the upper bearing (metal) at shaft insulation both ends；
Privates hole extends in the upper shaft insulation from the surface that the upper shaft insulation is bonded with the upper conductive rollers, and
It is connected with the privates hole.
2. lithium ion battery separator breakdown voltage test system according to claim 1, it is characterised in that: the lower conduction
Roller is placed on the middle part of the lower shaft insulation, and the upper conductive rollers are placed on the middle part of the upper shaft insulation.
3. lithium ion battery separator breakdown voltage test system according to claim 1, it is characterised in that: the lower through-hole
Central axes be located along the same line with the central axes of the lower bearing and the central axes of the lower shaft insulation, the upper through-hole
Central axes are located along the same line with the central axes of the upper bearing (metal) and the central axes of the upper shaft insulation.
4. lithium ion battery separator breakdown voltage test system according to any one of claim 1 to 3, feature exist
It is Teflon axis in: the upper shaft insulation and the lower shaft insulation, the upper conductive rollers and the lower conductive rollers are conduction
Rubber rollers.
5. lithium ion battery separator breakdown voltage test system according to claim 1, it is characterised in that: described first
The perpendicular on the surface of fagging and first bottom plate.
6. lithium ion battery separator breakdown voltage test system according to claim 1, it is characterised in that: described first
Fagging includes:
Lower supporting plate is set to the upper surface of first bottom plate；
Upper backup pad is set to the top of the lower supporting plate；
The lower through-hole is located in the lower supporting plate, and the upper through-hole is located in the upper backup pad.
7. a kind of lithium ion battery separator breakdown voltage test macro, which is characterized in that the lithium ion battery separator breakdown potential
Pressure test macro includes at least:
Such as lithium ion battery separator breakdown voltage test system described in any one of claims 1 to 6；
Unwinding rack, positioned at the side of the lithium ion battery separator breakdown voltage test system, the unwinding rack is included at least and is put
Reel, the end face for unreeling disk are parallel with the end face of the end face of the lower shaft insulation and the upper shaft insulation；
Rolling frame, positioned at the side of the lithium ion battery separator breakdown voltage test system far from the unwinding rack, the receipts
It rolls up frame and includes at least closed reel, the end face of the closed reel is parallel with the end face for unreeling disk.
8. lithium ion battery separator breakdown voltage test macro according to claim 7, it is characterised in that: described to unreel disk
Width and the closed reel width be more than or equal to the upper conductive rollers width and the lower conductive rollers it is of same size, and
It is described to unreel disk and the closed reel and the upper conductive rollers and the lower conductive rollers are unreeling disk, the upper conductive rollers along described
And it is correspondingly arranged on the arragement direction of the closed reel.
9. lithium ion battery separator breakdown voltage test macro according to claim 7, it is characterised in that: the unwinding rack
Further include:
Second bottom plate；
Second support plate is set to the upper surface of second bottom plate, and parallel with first support plate；
First rotating shaft positioned at the side of second support plate, and vertical with second support plate is connect；
The disk that unreels is placed in the first rotating shaft, and the side phase of the end face for unreeling disk and second support plate
In parallel.
10. lithium ion battery separator breakdown voltage test macro according to claim 9, it is characterised in that: the winding
Frame further include:
Third bottom plate；
Third support plate is set to the upper surface of the third bottom plate, and parallel with first support plate；
Second shaft positioned at the side of the third support plate, and extends vertically through the third support plate；
The closed reel is placed in second shaft, and the side phase of the end face of the closed reel and the third support plate
In parallel；
Rocking bar, positioned at the side of the third support plate far from the closed reel, and with second shaft far from the winding
One end of disk is connected.
11. lithium ion battery separator breakdown voltage test macro according to claim 7, it is characterised in that: the lithium from
Sub- battery diaphragm breakdown voltage test system further include:
Breakdown voltage test system；
Conducting wire runs through first wire guide, second wire guide, the privates hole and the privates hole, institute
Conducting wire is stated to be connected with the breakdown voltage test system, the lower conductive rollers and the upper conductive rollers.
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| CN201820462190.2U CN208188252U (en) | 2018-04-03 | 2018-04-03 | Lithium ion battery separator breakdown voltage test system and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820462190.2U CN208188252U (en) | 2018-04-03 | 2018-04-03 | Lithium ion battery separator breakdown voltage test system and system |
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| CN208188252U true CN208188252U (en) | 2018-12-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111077422A (en) * | 2019-12-31 | 2020-04-28 | 河北金力新能源科技股份有限公司 | Lithium ion battery diaphragm breakdown strength testing device and testing method thereof |
| CN111812470A (en) * | 2020-07-21 | 2020-10-23 | 上海恩捷新材料科技有限公司 | Method for testing continuous voltage resistance of film |
| CN111855758A (en) * | 2019-04-25 | 2020-10-30 | 住友化学株式会社 | Method and device for manufacturing slit diaphragm |
| CN113740680A (en) * | 2021-08-26 | 2021-12-03 | 中材锂膜有限公司 | Lithium battery diaphragm electrostatic breakdown testing device |
| CN114779032A (en) * | 2022-06-22 | 2022-07-22 | 深圳市博盛新材料有限公司 | Breakdown voltage testing device for lithium ion battery diaphragm |
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2018
- 2018-04-03 CN CN201820462190.2U patent/CN208188252U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855758A (en) * | 2019-04-25 | 2020-10-30 | 住友化学株式会社 | Method and device for manufacturing slit diaphragm |
| CN111077422A (en) * | 2019-12-31 | 2020-04-28 | 河北金力新能源科技股份有限公司 | Lithium ion battery diaphragm breakdown strength testing device and testing method thereof |
| CN111812470A (en) * | 2020-07-21 | 2020-10-23 | 上海恩捷新材料科技有限公司 | Method for testing continuous voltage resistance of film |
| CN111812470B (en) * | 2020-07-21 | 2021-05-04 | 上海恩捷新材料科技有限公司 | Method for testing continuous voltage resistance of film |
| WO2022016923A1 (en) * | 2020-07-21 | 2022-01-27 | 上海恩捷新材料科技有限公司 | Method for continuous testing of voltage resistance of thin film |
| CN113740680A (en) * | 2021-08-26 | 2021-12-03 | 中材锂膜有限公司 | Lithium battery diaphragm electrostatic breakdown testing device |
| CN114779032A (en) * | 2022-06-22 | 2022-07-22 | 深圳市博盛新材料有限公司 | Breakdown voltage testing device for lithium ion battery diaphragm |
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