CN207317960U - Test substrate, septum clip and diaphragm closed pore temperature and broken film temperature test system - Google Patents
Test substrate, septum clip and diaphragm closed pore temperature and broken film temperature test system Download PDFInfo
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- CN207317960U CN207317960U CN201721251324.8U CN201721251324U CN207317960U CN 207317960 U CN207317960 U CN 207317960U CN 201721251324 U CN201721251324 U CN 201721251324U CN 207317960 U CN207317960 U CN 207317960U
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Abstract
The utility model provides a kind of test substrate, septum clip and diaphragm closed pore temperature and broken film temperature test system, and the test substrate includes：Base main body, including opposite first surface and second surface；The first surface of the base main body includes metallic region and the insulating regions positioned at metallic region periphery；Metal strip, is embedded in the base main body, and one end is connected with the metallic region, and the other end extends to the outside of the base main body；Wherein, the surface of the metal strip, the metallic region surface and the insulating regions the equal flush in surface.The test substrate of the utility model can be used for the test of diaphragm closed pore temperature and broken film temperature, have test accuracy height, advantages of simple structure and simple.
Description
Technical field
The utility model belongs to technical field of lithium batteries, is closed more particularly to one kind test substrate, septum clip and membrane
Hole temperature and broken film temperature test system.
Background technology
In recent years, people propose electronic product the requirement of higher, the super long standby time time of such as mobile phone electronic equipment；It is mixed
The popularization of the green energy resource power-equipments such as power electric car, electric automobile is closed, therefore there is high gravimetric energy density and volume energy
The lithium rechargeable battery of density is more paid close attention to, particularly large capacity, can fast charging and discharging high-performance lithium battery more
Favored, but further paid attention to the problems such as the safety problem brought with this, particularly batteries caught fire, battery explosion.
Lithium battery is mainly made of cathode, anode, membrane three parts.The performance of lithium battery diaphragm directly affects battery
Internal resistance, interfacial structure, capacity, cycle performance, security performance etc..High molecular material has the advantage of its own as battery diaphragm,
Such as excellent electrical insulator, can prevent to cause the decline of battery capacity by penetrating for electronics, performance stabilization, excellent processing performance
Deng.
Temperature when closed pore temperature is micropore closure, when exothermic reaction self-heating occurs for inside battery, overcharge or battery outside
When portion is short-circuit, these situations can all produce substantial amounts of heat.After membrane melting, inside battery heat is not off, with temperature
Rise, the violent thermal contraction of membrane, until positive and negative anodes directly contact and produce violent reaction, the fusing point and material of membrane after rupture of membranes
Material property directly contacts, so if the closed pore temperature of membrane and the gap of broken film temperature are bigger, the security of lithium battery
It is higher.It is usually relatively low in view of the decomposition temperature of electrolyte, and in heating process, there is necessarily unstable in its component
Property, therefore change of the battery core inner case measuring diaphragm internal resistance with electrolyte is directly simulated, and the closed pore temperature of membrane is judged with this
Degree or broken film temperature can there are certain error so that measurement result is not accurate enough.
Utility model content
In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide one kind test substrate, membrane
Fixture and diaphragm closed pore temperature and broken film temperature test system, for solving in the prior art by directly simulating feelings inside battery core
The internal resistance of condition measuring diaphragm is with the change of electrolyte, and judged with this existing for the closed pore temperature or broken film temperature of membrane can there are one
Fixed error so that the problem of measurement result is not accurate enough.
To achieve the above object and other related purposes, the utility model provide a kind of test substrate, the test substrate
Including：
Base main body, including opposite first surface and second surface；The first surface of the base main body includes metal
Region and the insulating regions positioned at metallic region periphery；
Metal strip, is embedded in the base main body, and one end is connected with the metallic region, and the other end extends to described
The outside of base main body；Wherein, the surface on the surface of the metal strip, the surface of the metallic region and the insulating regions is equal
Flush.
As a kind of preferred solution of the utility model, the metallic region is located in the base main body first surface
The heart.
As a kind of preferred solution of the utility model, installation through-hole is additionally provided with the base main body.
As a kind of preferred solution of the utility model, the installation through-hole is tapped through hole.
The utility model also provides a kind of septum clip, and the septum clip includes：Two pieces of test substrates, the test base
Plate includes：
Base main body, including opposite first surface and second surface；The first surface of the base main body includes metal
Region and the insulating regions positioned at metallic region periphery；
Metal strip, is embedded in the base main body, and one end is connected with the metallic region, and the other end extends to described
The outside of base main body；Wherein, the surface on the surface of the metal strip, the surface of the metallic region and the insulating regions is equal
Flush；Wherein,
Two pieces of test substrate-parallels post together, and the first surface of two pieces of test substrates is to post face.
As a kind of preferred solution of the utility model, correspondence is set the metallic region of two pieces of test substrates up and down
Put.
As a kind of preferred solution of the utility model, the metallic region is located in the base main body first surface
The heart.
As a kind of preferred solution of the utility model, installation through-hole, and two pieces of institutes are additionally provided with the base main body
The installation through-hole in base main body is stated to be correspondingly arranged up and down；The septum clip further includes fixing device, the fixed dress
Put and fix two pieces of test substrates via the installation through-hole.
As a kind of preferred solution of the utility model, the installation through-hole is threaded hole；The fixing device is bolt.
The utility model also provides a kind of diaphragm closed pore temperature and broken film temperature test system, the diaphragm closed pore temperature and
Broken film temperature test system includes：
Heat pressue device；
Such as the septum clip described in above-mentioned either a program, heated positioned at described in pressue device；
Membrane, is held between two pieces of test substrates of the septum clip；
Electrolyte, drop is between the metallic region of the membrane and the test substrate；
For testing the measurement of resistance and the membrane temperature between two pieces of metallic regions for testing substrate
Device；The measuring device is connected with the metal strip；
Data acquisition processing device, is electrically connected with the measuring device.
As a kind of preferred solution of the utility model, the heating pressue device includes：
Pressurised chamber；
Presser unit, in the pressurised chamber；
Two pieces of heating plates, one piece of heating plate are located at the top of the pressurised chamber, and another piece of heating plate is positioned at described
The top of presser unit；The septum clip is between two pieces of heating plates；
Pressure gauge, is arranged on the outside of the pressurised chamber, and is connected with the presser unit；
Temperature controller, is connected with the heating plate.
As a kind of preferred solution of the utility model, the heating pressue device includes：
Pressurised chamber；
Presser unit, in the pressurised chamber；
Two pieces of heating plates, one piece of heating plate are located at the bottom of the pressurised chamber, and another piece of heating plate is positioned at described
The bottom of presser unit；The septum clip is between two pieces of heating plates；
Pressure gauge, is arranged on the outside of the pressurised chamber, and is connected with the presser unit；
Temperature controller, is connected with the heating plate.
As a kind of preferred solution of the utility model, the heating pressue device further includes high-temperature resistant rubber pad, described
High-temperature resistant rubber pad is arranged between the heating plate and the septum clip.
As a kind of preferred solution of the utility model, the measuring device includes：
Resistance measuring module, is electrically connected with the metal strip and the data acquisition processing device；
Temperature-measuring module, is electrically connected with the data acquisition processing device.
As described above, test substrate, septum clip and diaphragm closed pore temperature provided by the utility model and broken film temperature are surveyed
Test system, has the advantages that：The test substrate of the utility model can be used for diaphragm closed pore temperature and broken film temperature
Test, has test accuracy height, advantages of simple structure and simple；Closed pore temperature and broken film temperature the test system of the utility model can
The accurate test that resistance between the metallic region of realization test substrate described to two pieces varies with temperature, passes through resistance
The turning point of value change can react the closed pore temperature and broken film temperature of membrane exactly, avoid to the direct engaged test of membrane
When error that may be present so that measurement result has higher accuracy；Meanwhile closed pore temperature of the present invention and broken film temperature are surveyed
Test system also has the advantages that of simple structure and low cost, easy to operation.
Brief description of the drawings
Fig. 1 is shown as the overlooking the structure diagram of the test substrate provided in the utility model embodiment one.
Fig. 2 is shown as the dimensional structure diagram of the septum clip provided in the utility model embodiment two.
Fig. 3 to 4 is shown as the diaphragm closed pore temperature provided in the utility model embodiment three and broken film temperature test system
Structure diagram.
Fig. 5 is shown as the diaphragm closed pore temperature provided in the utility model embodiment three and broken film temperature test system carries out
The curve map that resistance during test between the metallic region of two pieces of test substrates varies with temperature.
Reference numerals explanation
1 septum clip
11 test substrates
111 base main bodies
112 metallic regions
113 insulating regions
114 metal strips
115 installation through-holes
12 bolts
2 resistance tests press from both sides
3 heating pressue devices
31 pressurised chambers
32 presser units
33 heating plates
34 pressure gauges
35 temperature controllers
36 high-temperature resistant rubber pads
4 membranes
5 measuring devices
51 resistance test modules
52 temperature test modules
6 data acquisition processing devices
Embodiment
Illustrate the embodiment of the utility model below by way of specific instantiation, those skilled in the art can be by this theory
Content disclosed by bright book understands the further advantage and effect of the utility model easily.The utility model can also be by addition
Different embodiments are embodied or practiced, and the various details in this specification can also be based on different viewpoints with answering
With carrying out various modifications or alterations under the spirit without departing from the utility model.
Please refer to Fig.1 to Fig. 5.It should be noted that the diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of utility model, though when only display is with related component in the utility model rather than according to actual implementation in diagram
Component count, shape and size are drawn, and form, quantity and the ratio of each component can be a kind of random change during its actual implementation
Become, and its assembly layout form may also be increasingly complex.
Embodiment one
Referring to Fig. 1, the utility model provides a kind of test substrate 11, the test substrate 11 includes：Base main body
111, the base main body 111 includes opposite first surface and second surface；The first surface of the base main body 111 includes
Metallic region 112 and the insulating regions 113 positioned at the periphery of metallic region 112；Metal strip 114, the metal strip 114 are inlayed
In in the base main body 111, one end of the metal strip 114 is connected with the metallic region 112, and the other end extends to institute
State the outside of base main body 111；Wherein, the surface of the metal strip 114, the surface of the metallic region 112 and the insulation
The equal flush in surface in region 113.
In one example, the base main body 111 is insulating body, and the metallic region 112 is in the base main body
One metallic region of 111 first surface plating.
In another example, the base main body 111 can be the main body of any one material, the base main body 111
First surface the metallic region 112 can be formed by electroplating metal material, and in the first table of the base main body 111
Face is by the process deposits insulating materials such as depositing to form the insulating regions 113.
As an example, the metallic region 112 can be in the optional position of 111 first surface of base main body, preferably
Ground, in the present embodiment, the metallic region 112 is located at the center of 111 first surface of base main body.
As an example, mirror surface treatment is passed through on the surface of the metallic region 112, the metallic region so can ensure that
112 surface is sufficiently flat smooth, it is ensured that will not cause membrane ruptures in the pressure process of follow-up test.
As an example, be additionally provided with installation through-hole 115 in the base main body 111, the installation through-hole 115 can be but not
It is only limitted to tapped through hole.
Embodiment two
Referring to Fig. 2, the utility model also provides a kind of septum clip 1, the septum clip 1 includes：Two pieces of test bases
Plate 11, the test substrate 11 include：Base main body 111, the base main body 111 include opposite first surface and the second table
Face；The first surface of the base main body 111 includes metallic region 112 and the insulation layer positioned at the periphery of metallic region 112
Domain 113；Metal strip 114, the metal strip 114 are embedded in the base main body 111, one end of the metal strip 114 and institute
State metallic region 112 to be connected, the other end extends to the outside of the base main body 111；Wherein, the table of the metal strip 114
Face, the metallic region 112 surface and the insulating regions 113 the equal flush in surface；Wherein, two pieces of test substrates
11 it is parallel post together, and the first surfaces of two pieces of test substrates 11 is post face.
In one example, the base main body 111 is insulating body, and the metallic region 112 is in the base main body
One metallic region of 111 first surface plating.
In another example, the base main body 111 can be the main body of any one material, the base main body 111
First surface the metallic region 112 can be formed by electroplating metal material, and in the first table of the base main body 111
Face is by the process deposits insulating materials such as depositing to form the insulating regions 113.
As an example, the metallic region of two pieces of test substrates 11 is correspondingly arranged about 112, it is preferable that this reality
Apply in example, the metallic region 112 of two pieces of test substrates 11 is located at the center of 111 first surface of base main body.
As an example, mirror surface treatment is passed through on the surface of the metallic region 112, the metallic region so can ensure that
112 surface is sufficiently flat smooth, it is ensured that will not cause membrane ruptures in the pressure process of follow-up test.
As an example, installation through-hole 115 is additionally provided with the base main body 111, and in two pieces of base main bodies 111
The installation through-hole is correspondingly arranged about 115；The septum clip 1 further includes fixing device, and the fixing device is via described
Installation through-hole 115 fixes two pieces of test substrates 11.
As an example, the installation through-hole can be but be not limited only to threaded hole；The fixing device can be but not only
It is limited to bolt 12.
It should be noted that when the septum clip 1 is used for the closed pore temperature of membrane 4 and broken film temperature is tested, it is described
Membrane 4 corresponds to the metallic region 112 of the base main body 111 between two pieces of test substrates 11.
Embodiment three
Fig. 3 and Fig. 4 is referred to, the utility model also provides a kind of diaphragm closed pore temperature and broken film temperature test system, institute
Stating diaphragm closed pore temperature and broken film temperature test system includes：Heat pressue device 3；Such as the septum clip described in embodiment two
1, the septum clip 1 is in the heating pressue device 3；Membrane 4, the membrane 4 are held on the two of the septum clip 1
Tested described in block between substrate 11；Electrolyte (not shown), the electrolyte are at least dripped arranged on 4 and one test of membrane
Between the metallic region 112 of substrate 11；For testing between the metallic region 112 of two pieces of test substrates 11
The measuring device 5 of the temperature of resistance and the membrane 4；The measuring device 5 is connected with the metal strip 114；Data acquisition
Processing unit 6, the data acquisition processing device 6 are electrically connected with the measuring device 5.
In one example, as shown in figure 3, the heating pressue device 3 includes：Pressurised chamber 31；Presser unit 32, it is described
Presser unit 32 is located in the pressurised chamber 31, for applying required pressure to the membrane 4 in test；Two pieces of heating
Plate 33, one piece of heating plate 33 are located at the top of the pressurised chamber 31, and another piece of heating plate 33 is located at the presser unit
32 top, for being heated in test for the membrane 4；The septum clip 1 positioned at two pieces of heating plates 33 it
Between；Pressure gauge 34, the pressure gauge 34 are arranged on the outside of the pressurised chamber 31, and are connected with the presser unit 32
Connect, the pressure on the membrane 4 is put on for presser unit described in detecting real-time 32, for ensuring that the presser unit 32 is applied
The pressure on the membrane 4 is added in be within suitable pressure limit, place put on pressure on the membrane 4 it is excessive and
Cause the rupture of the membrane 4；Temperature controller 35, the temperature controller 35 is connected with the heating plate 32, for controlling
Make the heating-up temperature of the heating plate 32.
In another example, as shown in figure 4, the heating pressue device 3 includes：Pressurised chamber 31；Presser unit 32, institute
State presser unit 32 to be located in the pressurised chamber 31, for applying required pressure to the membrane 4 in test；Two pieces add
Hot plate 33, one piece of heating plate 33 are located at the bottom of the pressurised chamber 31, and another piece of heating plate 33 is single positioned at the pressurization
The bottom of member 32；The septum clip 1 is between two pieces of heating plates 33, for being carried out in test for the membrane 4
Heating；Pressure gauge (not shown), the pressure gauge are arranged on the outside of the pressurised chamber 31, and with the presser unit 32
It is connected；Temperature controller 35, the temperature controller 35 are connected with the heating plate 33, for controlling the heating plate 32
Heating-up temperature.
As an example, the presser unit 32 can be but be not limited only to jack.
As an example, please continue to refer to Fig. 3 and Fig. 4, the heating pressue device 3 further includes high-temperature resistant rubber pad 36, institute
State high-temperature resistant rubber pad 36 to be arranged between the heating plate 33 and the septum clip 1, for protecting the septum clip 1.
As an example, the measuring device 5 includes：Resistance measuring module 51, the resistance measuring module 51 and the gold
Belong to bar 114 and the data acquisition processing device 6 is electrically connected；Temperature-measuring module 52, the temperature-measuring module 52 with it is described
Data acquisition processing device 6 is electrically connected, and certainly, the temperature-measuring module 52 can also directly be in contact with the membrane 4, with
Measure the temperature of the membrane 4.
The utility model diaphragm closed pore temperature and broken film temperature test system operation principle be：By on the membrane 4
Electrolyte is put into togerther the suitable pressure of selection in the heating pressue device 3 in drop after being fixed on the septum clip 1
Pressurized, heated is carried out, with the rise of temperature, the membrane 4 can gradual closed pore melt fracture.Among the septum clip 1
The embedded metallic region 112 contacts the membrane 4, by connect the metal strip 114 of the metallic region 112 come
Connection resistance folder 2 carrys out test resistance.When heating-up temperature is heated to certain temperature, 4 closed pore of membrane, will obstruct up and down at this time
The metallic regions 112 in two pieces of test substrates 11, between electric current conduction, resistance will rise to one moment very
Big numerical value；When 4 rupture of membranes of membrane, contact short circuit is caused resistance to become very small by the upper and lower two test substrate 11,
Data are acquired in test process, each temperature spot corresponds to a point of resistance, since resistance can be with prominent in test process
The form of change becomes larger or diminishes, therefore data point collection is very intensive, therefore selects the speed of 10 points per second to adopt
Collect data, be capable of the situation of change of accurate collecting temperature resistance.Shown data acquisition processing device 6 makes temperature and resistance data
Curve map, as shown in figure 5, when testing a kind of membrane 4, temperature when resistance jumps is 136 DEG C or so, resistance
Bust temperature is 146 DEG C or so, that is, closed pore temperature, about at 136 DEG C, broken film temperature is about at 146 DEG C or so.
In conclusion the utility model provides a kind of test substrate, septum clip and diaphragm closed pore temperature and broken film temperature
Test system, the test substrate include：Base main body, including opposite first surface and second surface；The base main body
First surface include metallic region and the insulating regions positioned at metallic region periphery；Metal strip, is embedded in the substrate
In main body, one end is connected with the metallic region, and the other end extends to the outside of the base main body；Wherein, the metal
The surface of bar, the metallic region surface and the insulating regions the equal flush in surface.The test substrate of the utility model
It can be used for the test of diaphragm closed pore temperature and broken film temperature, there is test accuracy height, advantages of simple structure and simple；This practicality is new
Closed pore temperature and broken film temperature the test system of type can be realized between the metallic region of test substrate described to two pieces
The accurate test that resistance varies with temperature, by the turning point of resistance change can react exactly membrane closed pore temperature and
Broken film temperature, avoids error that may be present during engaged test direct to membrane so that measurement result has higher accurate
Property；Meanwhile closed pore temperature of the present invention and broken film temperature test system are also with of simple structure and low cost, easy to operation etc. excellent
Point.
The above embodiments are only illustrative of the principle and efficacy of the utility model, new not for this practicality is limited
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
God and all equivalent modifications completed under technological thought or change, should be covered by the claim of the utility model.
Claims (14)
1. one kind test substrate, it is characterised in that the test substrate includes：
Base main body, including opposite first surface and second surface；The first surface of the base main body includes metallic region
And the insulating regions positioned at metallic region periphery；
Metal strip, is embedded in the base main body, and one end is connected with the metallic region, and the other end extends to the substrate
The outside of main body；Wherein, the surface on the surface of the metal strip, the surface of the metallic region and the insulating regions is equal
Together.
2. test substrate according to claim 1, it is characterised in that the metallic region is located at the base main body first
The center on surface.
3. test substrate according to claim 1 or 2, it is characterised in that it is logical that installation is additionally provided with the base main body
Hole.
4. test substrate according to claim 3, it is characterised in that the installation through-hole is tapped through hole.
5. a kind of septum clip, it is characterised in that the septum clip includes：Two pieces of test substrates, the test substrate include：
Base main body, including opposite first surface and second surface；The first surface of the base main body includes metallic region
And the insulating regions positioned at metallic region periphery；
Metal strip, is embedded in the base main body, and one end is connected with the metallic region, and the other end extends to the substrate
The outside of main body；Wherein, the surface on the surface of the metal strip, the surface of the metallic region and the insulating regions is equal
Together；Wherein,
Two pieces of test substrate-parallels post together, and the first surface of two pieces of test substrates is to post face.
6. septum clip according to claim 5, it is characterised in that in the metallic region of two pieces of test substrates
Under be correspondingly arranged.
7. septum clip according to claim 6, it is characterised in that the metallic region is located at the base main body first
The center on surface.
8. septum clip according to claim 5, it is characterised in that installation through-hole is additionally provided with the base main body,
And the installation through-hole in two pieces of base main bodies is correspondingly arranged up and down；The septum clip further includes fixing device, institute
Fixing device is stated to fix two pieces of test substrates via the installation through-hole.
9. septum clip according to claim 8, it is characterised in that the installation through-hole is threaded hole；The fixed dress
It is set to bolt.
10. a kind of diaphragm closed pore temperature and broken film temperature test system, it is characterised in that diaphragm closed pore temperature and the rupture of membranes temperature
Degree test system includes：
Heat pressue device；
Septum clip as any one of claim 5 to 9, in the heating pressue device；
Membrane, is held between two pieces of test substrates of the septum clip；
Electrolyte, drop is between the metallic region of the membrane and the test substrate；
For testing the measuring device of resistance and the membrane temperature between two pieces of metallic regions for testing substrate；
The measuring device is connected with the metal strip；
Data acquisition processing device, is electrically connected with the measuring device.
11. diaphragm closed pore temperature according to claim 10 and broken film temperature test system, it is characterised in that the heating
Pressue device includes：
Pressurised chamber；
Presser unit, in the pressurised chamber；
Two pieces of heating plates, one piece of heating plate are located at the top of the pressurised chamber, and another piece of heating plate is located at the pressurization
The top of unit；The septum clip is between two pieces of heating plates；
Pressure gauge, is arranged on the outside of the pressurised chamber, and is connected with the presser unit；
Temperature controller, is connected with the heating plate.
12. diaphragm closed pore temperature according to claim 10 and broken film temperature test system, it is characterised in that the heating
Pressue device includes：
Pressurised chamber；
Presser unit, in the pressurised chamber；
Two pieces of heating plates, one piece of heating plate are located at the bottom of the pressurised chamber, and another piece of heating plate is located at the pressurization
The bottom of unit；The septum clip is between two pieces of heating plates；
Pressure gauge, is arranged on the outside of the pressurised chamber, and is connected with the presser unit；
Temperature controller, is connected with the heating plate.
13. diaphragm closed pore temperature and broken film temperature test system according to claim 11 or 12, it is characterised in that described
Heating pressue device further includes high-temperature resistant rubber pad, and the high-temperature resistant rubber pad is arranged at the heating plate and the septum clip
Between.
14. diaphragm closed pore temperature according to claim 10 and broken film temperature test system, it is characterised in that the measurement
Device includes：
Resistance measuring module, is electrically connected with the metal strip and the data acquisition processing device；
Temperature-measuring module, is electrically connected with the data acquisition processing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721251324.8U CN207317960U (en) | 2017-09-27 | 2017-09-27 | Test substrate, septum clip and diaphragm closed pore temperature and broken film temperature test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721251324.8U CN207317960U (en) | 2017-09-27 | 2017-09-27 | Test substrate, septum clip and diaphragm closed pore temperature and broken film temperature test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207317960U true CN207317960U (en) | 2018-05-04 |
Family
ID=62428314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721251324.8U Active CN207317960U (en) | 2017-09-27 | 2017-09-27 | Test substrate, septum clip and diaphragm closed pore temperature and broken film temperature test system |
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| Country | Link |
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| CN (1) | CN207317960U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406006A (en) * | 2018-10-20 | 2019-03-01 | 武汉惠强新能源材料科技有限公司 | Lithium battery diaphragm closed pore, broken film temperature test device |
-
2017
- 2017-09-27 CN CN201721251324.8U patent/CN207317960U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406006A (en) * | 2018-10-20 | 2019-03-01 | 武汉惠强新能源材料科技有限公司 | Lithium battery diaphragm closed pore, broken film temperature test device |
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Effective date of registration: 20180606 Address after: 519000 Zhongda innovation Valley F area F5, building 2233, Ping Dong Road, Ping Sha town, Zhuhai, Guangdong Patentee after: Zhuhai nzechet Mstar Technology Ltd Address before: 201399 No. 155 South Lu highway, Pudong New Area, Pudong New Area, Shanghai. Patentee before: Shanghai Enjie New Material Technology Co.,Ltd. |