CN202614643U - System for measuring permeability of battery diaphragm - Google Patents
System for measuring permeability of battery diaphragm Download PDFInfo
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- CN202614643U CN202614643U CN 201220199556 CN201220199556U CN202614643U CN 202614643 U CN202614643 U CN 202614643U CN 201220199556 CN201220199556 CN 201220199556 CN 201220199556 U CN201220199556 U CN 201220199556U CN 202614643 U CN202614643 U CN 202614643U
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- gas
- battery diaphragm
- air permeability
- permeability
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Abstract
The utility model relates to a system for measuring permeability of a battery diaphragm. The system comprises a permeability testing device, a timing device and a data processing device, wherein the timing device is connected with the permeability testing device and is used for receiving a gas pressure signal and a gas flow signal of the permeability testing device; and the data processing device is connected with the timing device and is used for receiving a time signal of the timing device, a gas pressure signal and a gas flow signal. According to the system, the permeability of the battery diaphragm is measured under certain gas pressure and certain gas flow by the permeability testing device so that gas pressure data and gas flow data are obtained; time which is spent during the measuring process can be obtained by the timing device; and the permeability of the battery diaphragm can be obtained by the data processing device. By the system, the time for a certain gas flow under certain gas pressure to pass through the battery diaphragm is taken as a measurement index of the permeability, and the system is simple in a testing process, accurate in a testing result and low in cost.
Description
Technical field
The utility model relates to the battery diaphragm detection range, relates in particular to a kind of measuring system of battery diaphragm air permeability.
Background technology
Gas penetration potential is an important indicator of battery diaphragm (being microporous barrier).Good permeability, then the ionic flux through microporous barrier is big more in the unit interval, helps dashing, discharging of lithium ion battery; In addition, the microporous barrier good permeability, can reduce to a certain extent ion through the time resistance, reduce cell resistance.Powerful lithium ion battery is just higher for the requirement of battery diaphragm gas penetration potential.
Generally speaking, the microporous barrier aperture is big, and perhaps the porosity of microporous barrier is high, all helps to improve its permeability.But the gas penetration potential of microporous barrier is too high, then can reduce its mechanical property (like pulling strengrth etc.), finally influences the security performance of battery.
In the prior art, the method for testing that the air permeability proving installation mainly adopts is, makes vertical steady air current through sample at a constant flow, is determined at the pressure reduction of sample both sides under this condition, calculates parameters such as circulation of air resistance.This method is comparatively complicated, and its test result is directly perceived inadequately.
The utility model content
To above-mentioned technical matters, the utility model has been designed and developed the measuring system of battery diaphragm air permeability.In the utility model; Utilize the air permeability measurement mechanism that battery diaphragm is carried out permeability measurement under certain gaseous tension and conditions of certain gas flow; Obtain gaseous tension and gas data on flows; Through time set, then can obtain accomplishing the time that above-mentioned measuring process spends, then can obtain the air permeability of battery diaphragm through data processing equipment.The utility model conditions of certain gas flow sees through the measurement index of the time of battery diaphragm as air permeability with certain gaseous tension, and test process is simple, and test result is accurate, and is with low cost.
The technical scheme of the utility model is:
A kind of measuring system of battery diaphragm air permeability comprises:
The air permeability proving installation;
Time set, it is connected with said air permeability proving installation, receives the gaseous tension signal and the gas flow signal of said air permeability measurement mechanism;
Data processing equipment, it is connected with said time set, receives the time signal of said time set, and receiver gases pressure signal and gas flow signal.
Preferably, in the measuring system of described battery diaphragm air permeability, said data processing equipment is a computing machine.
Preferably, the measuring system of described battery diaphragm air permeability also comprises:
Printer, it is connected with said data processing equipment.
Preferably; In the measuring system of described battery diaphragm air permeability; Said air permeability proving installation comprises source of the gas, gas check, baroceptor and flow sensor, and wherein, said gas check is communicated with said source of the gas; So that the gas in the said source of the gas gets into said gas check; Be provided with the battery diaphragm clamping device in the said gas check, said gas check also has the gas outlet that supplied gas flows out, said gas check and said source of the gas be communicated with the both sides that position and said gas outlet are distributed in said battery diaphragm clamping device; Said baroceptor is arranged at the inside of said gas check, and said flow sensor is arranged at the junction of said gas check and said source of the gas.
In the measuring system of the described battery diaphragm air permeability of the utility model; Utilize the air permeability measurement mechanism that battery diaphragm is carried out permeability measurement under certain gaseous tension and conditions of certain gas flow; Obtain gaseous tension and gas data on flows; Through time set, then can obtain accomplishing the time that above-mentioned measuring process spends, then can obtain the air permeability of battery diaphragm through data processing equipment.The utility model conditions of certain gas flow sees through the measurement index of the time of battery diaphragm as air permeability with certain gaseous tension, and test process is simple, and test result is accurate, and is with low cost.And,, low to the improvement cost of existing equipment through connecting time set on the air permeability proving installation in the prior art.
Description of drawings
Fig. 1 is the structural representation of the measuring system of the described battery diaphragm air permeability of the utility model.
Embodiment
As shown in Figure 1, the utility model provides a kind of measuring system of battery diaphragm air permeability, comprising: the air permeability proving installation; Time set, it is connected with said air permeability proving installation, receives the gaseous tension signal and the gas flow signal of said air permeability measurement mechanism; Data processing equipment, it is connected with said time set, receives the time signal of said time set, and receiver gases pressure signal and gas flow signal.
In the measuring system of described battery diaphragm air permeability, said data processing equipment is a computing machine.
The measuring system of described battery diaphragm air permeability also comprises: printer, it is connected with said data processing equipment.
In the measuring system of described battery diaphragm air permeability; Said air permeability proving installation comprises source of the gas, gas check, baroceptor and flow sensor; Wherein, Said gas check is communicated with said source of the gas, so that the gas in the said source of the gas gets into said gas check, is provided with the battery diaphragm clamping device in the said gas check; Said gas check also has the gas outlet that supplied gas flows out; Said gas check and said source of the gas be communicated with the both sides that position and said gas outlet are distributed in said battery diaphragm clamping device, said baroceptor is arranged at the inside of said gas check, said flow sensor is arranged at the junction of said gas check and said source of the gas.
Above-mentioned air permeability proving installation is the structure that is adopted among the embodiment of the utility model.
In the utility model, being connected all between air permeability proving installation and time set and time set and the computing machine realizes through optical cable.
The course of work of the utility model is: the battery diaphragm that cuts certain size; Then battery diaphragm is sandwiched in the battery diaphragm clamping device of air permeability proving installation; Test 100ml gas sees through 1.0 square inches required time of battery diaphragm sample under the pressure of 4.88 inchess of water(in H, then the unit of battery diaphragm air permeability index is s/100ml.
Above-mentioned each embodiment only is used to explain the utility model; The structure of each parts and connected mode all can change to some extent; On the basis of the utility model technical scheme; All improvement and equivalents of the connection and the structure of individual component being carried out according to the utility model principle all should not got rid of outside the protection domain of the utility model.
Claims (4)
1. the measuring system of a battery diaphragm air permeability is characterized in that, comprising:
The air permeability proving installation;
Time set, it is connected with said air permeability proving installation, receives the gaseous tension signal and the gas flow signal of said air permeability measurement mechanism;
Data processing equipment, it is connected with said time set, receives the time signal of said time set, and receiver gases pressure signal and gas flow signal.
2. the measuring system of battery diaphragm air permeability as claimed in claim 1 is characterized in that, said data processing equipment is a computing machine.
3. the measuring system of battery diaphragm air permeability as claimed in claim 2 is characterized in that, also comprises:
Printer, it is connected with said data processing equipment.
4. the measuring system of battery diaphragm air permeability as claimed in claim 1; It is characterized in that; Said air permeability proving installation comprises source of the gas, gas check, baroceptor and flow sensor, and wherein, said gas check is communicated with said source of the gas; So that the gas in the said source of the gas gets into said gas check; Be provided with the battery diaphragm clamping device in the said gas check, said gas check also has the gas outlet that supplied gas flows out, said gas check and said source of the gas be communicated with the both sides that position and said gas outlet are distributed in said battery diaphragm clamping device; Said baroceptor is arranged at the inside of said gas check, and said flow sensor is arranged at the junction of said gas check and said source of the gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220199556 CN202614643U (en) | 2012-05-03 | 2012-05-03 | System for measuring permeability of battery diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220199556 CN202614643U (en) | 2012-05-03 | 2012-05-03 | System for measuring permeability of battery diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202614643U true CN202614643U (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220199556 Expired - Fee Related CN202614643U (en) | 2012-05-03 | 2012-05-03 | System for measuring permeability of battery diaphragm |
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| CN (1) | CN202614643U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760621A (en) * | 2014-01-14 | 2014-04-30 | 重庆工商职业学院 | Diaphragm micro-hole detection device and control system thereof |
| CN104020093A (en) * | 2014-05-20 | 2014-09-03 | 中国科学院金属研究所 | Method and device for measuring air permeability of battery diaphragm |
| CN104852095A (en) * | 2015-05-27 | 2015-08-19 | 深圳市聚和源科技有限公司 | Method and device for measuring air permeability of diaphragm paper |
| CN107515630A (en) * | 2017-09-29 | 2017-12-26 | 济南思克测试技术有限公司 | The constant-voltage equipment and air permeability instrument of a kind of air permeability instrument |
| CN107727548A (en) * | 2017-09-21 | 2018-02-23 | 东莞市创明电池技术有限公司 | Barrier film septum permeability testing device and barrier film air permeability method of testing |
| CN109374492A (en) * | 2018-09-07 | 2019-02-22 | 珠海恩捷新材料科技有限公司 | Diaphragm air permeability test macro and test method |
| CN114295527A (en) * | 2021-12-27 | 2022-04-08 | 杭州哲达科技股份有限公司 | Monitoring system for monitoring operation of membrane module in real time and analysis method |
-
2012
- 2012-05-03 CN CN 201220199556 patent/CN202614643U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760621A (en) * | 2014-01-14 | 2014-04-30 | 重庆工商职业学院 | Diaphragm micro-hole detection device and control system thereof |
| CN104020093A (en) * | 2014-05-20 | 2014-09-03 | 中国科学院金属研究所 | Method and device for measuring air permeability of battery diaphragm |
| CN104852095A (en) * | 2015-05-27 | 2015-08-19 | 深圳市聚和源科技有限公司 | Method and device for measuring air permeability of diaphragm paper |
| CN107727548A (en) * | 2017-09-21 | 2018-02-23 | 东莞市创明电池技术有限公司 | Barrier film septum permeability testing device and barrier film air permeability method of testing |
| CN107515630A (en) * | 2017-09-29 | 2017-12-26 | 济南思克测试技术有限公司 | The constant-voltage equipment and air permeability instrument of a kind of air permeability instrument |
| CN109374492A (en) * | 2018-09-07 | 2019-02-22 | 珠海恩捷新材料科技有限公司 | Diaphragm air permeability test macro and test method |
| CN109374492B (en) * | 2018-09-07 | 2021-07-20 | 珠海恩捷新材料科技有限公司 | Diaphragm air permeability testing system and testing method |
| CN114295527A (en) * | 2021-12-27 | 2022-04-08 | 杭州哲达科技股份有限公司 | Monitoring system for monitoring operation of membrane module in real time and analysis method |
| CN114295527B (en) * | 2021-12-27 | 2023-11-21 | 杭州哲达科技股份有限公司 | Monitoring system for monitoring operation of membrane module in real time and analysis method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20180720 Granted publication date: 20121219 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210720 Granted publication date: 20121219 |
|
| 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: 20121219 Termination date: 20180503 |