CN201014975Y - Lithium battery septum permeability testing device - Google Patents
Lithium battery septum permeability testing device Download PDFInfo
- Publication number
- CN201014975Y CN201014975Y CNU2007201183236U CN200720118323U CN201014975Y CN 201014975 Y CN201014975 Y CN 201014975Y CN U2007201183236 U CNU2007201183236 U CN U2007201183236U CN 200720118323 U CN200720118323 U CN 200720118323U CN 201014975 Y CN201014975 Y CN 201014975Y
- Authority
- CN
- China
- Prior art keywords
- air chamber
- lithium battery
- air
- proving installation
- battery diaphragm
- 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 - Lifetime
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to an air permeability testing device for the membrane of a lithium battery, and comprises a first air chamber, an air intake mechanism connected with the first air chamber, a second air chamber and a gas flowmeter. The membrane to be tested is arranged between the first air chamber and the second chamber, and used to separate the first air chamber and the second chamber. Air permeates the membrane to enter the second air chamber from the first air chamber, and the gas flowmeter is used to measure the corresponding air flow. Then, the measured data are calculated to reach the time coefficient indicator about the air permeability of the membrane tested. The utility model is simple in operation, accurate in data measurement, high in working efficiency, and low in cost.
Description
Skill this area
The utility model relates to a kind of lithium battery field tests, is meant a kind of lithium battery diaphragm air permeability proving installation especially.
Background technology
Lithium battery diaphragm is used for separating the both positive and negative polarity of battery, can allow the conducting medium ion pass through again, is the pith of decision lithium battery overall performance.The passage that microcellular structure on the barrier film allows these conducting medium ions pass through smoothly just, its permeability directly affects the charge-discharge performance of lithium battery.The barrier film air permeability is an important indicator of check membrane properties, is meant that a certain amount of air is by the needed time of barrier film under certain condition (pressure, mensuration area).At present, ASTM and JIS testing standard are arranged, but need to buy specific testing apparatus at the test of barrier film air permeability, and the test process complexity, the expense height.
The utility model content
Technical problem to be solved in the utility model is: the device that a kind of simple in structure, easy to operate test barrier film air permeability is provided.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of lithium battery diaphragm air permeability proving installation, comprise first air chamber, the admission gear that connects first air chamber, second air chamber and the gas meter that is connected with second air chamber, barrier film to be measured is installed between described first air chamber and second air chamber.
The beneficial effects of the utility model are: isolate first air chamber and second air chamber by barrier film to be measured, gas enters second air chamber from first air chamber by described barrier film to be measured, record corresponding gas flow by described gas meter, and the time coefficient index of the air permeability that can obtain weighing barrier film to be measured of converting, easy and simple to handle, test data is accurate, high efficiency, and installation cost is lower.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the stereographic map of the utility model lithium battery diaphragm air permeability proving installation.
Fig. 2 is the front view of the utility model lithium battery diaphragm air permeability proving installation.
Fig. 3 is the vertical view of the utility model lithium battery diaphragm air permeability proving installation.
Fig. 4 is the rear view of the utility model lithium battery diaphragm air permeability proving installation
Fig. 5 is the cut-open view along the A-A face among Fig. 3.
Embodiment
To shown in Figure 5, the utility model lithium battery diaphragm air permeability proving installation comprises casing 10 and work top 20, comprises admission gear and gas meter in the casing 10, establishes mechanism for testing 50 on the work top 20 as Fig. 1.
Admission gear comprises the intake interface 12 that is arranged on below, left side, casing 10 surface, the common gases reduction valve that is connected with intake interface, accurate gas pressure reducer that is connected with common gases reduction valve gas outlet and the accurate air pressure test chart that is connected with accurate gas pressure reducer gas outlet, it is the accurate air pressure test chart of 0.005MPa that the utility model preferably adopts minimum scale, the endpiece of air pressure test chart connects Gas flow-limiting valve 13, Gas flow-limiting valve 13, the common gases reduction valve, the knob 14 of accurate gas pressure reducer, 16,18, and the index dial 19 of air pressure test chart is installed on the working panel 22 of work top 20.
Mechanism for testing 50 comprises the gas container 52 that connects 13 outlets of Gas flow-limiting valve, and the utility model preferably adopts cylindrical container, and circular diameter is 35 millimeters in it.By being installed in two square iron hoops 51 on the work top 20 with first air chamber, the 53 end fix tightlies of gas container 52, first air chamber 53 of gas container 52 and the ring flange of second air chamber 54 all are pasted with packoff 56,57, packoff 56, the 57 preferred silicagel pad that adopt of the present utility model.The other end of second air chamber 54 of gas container 52 is a square contiguous block 58, it is inlaid into fixedly in the iron block 80, and be connected with an end of adjusting screw(rod) 82, the other end of adjusting screw(rod) 82 connects one handle 84, and by holding screw 86 fixed handles 84 and adjusting screw(rod) 82; Adjusting screw(rod) 82 fixing iron block 80 and fixedly the portion between the iron block 81 be positioned near a fixing end of iron block 81 and be provided with ring shaped step, prevent that adjusting screw(rod) 82 from moving forward and backward.
Testing agency comprises the U-tube manometer 92 that connects gas container 52 first air chambers 53, and in practical operation, the pressure control of first air chamber 53 is preferably 32 centimeter water columns at the 20-45 centimeter water column.Testing agency also comprises the gas meter 94 that is connected second air chamber 54, and the utility model gas meter 94 is a digital display type, and its display screen 96 is installed on the working panel 22.A connecting hole device 15 is also established in described 10 casing back, is used for connecting described first air chamber 53 for described pressure gauge 92.
During test, the barrier film 100 that a slice is cut out sticks on the packoff 57 of second air chamber 54, and the handle 84 of turn adjusting screw(rod) 82 is close to the ring flange of second air chamber 54 on the ring flange of first air chamber 53; Connect source of the gas and U-tube manometer 92 by intake interface 12, open source of the gas, regulate common gases reduction valve and accurate gas pressure reducer, test pressure, make its pressure stability between 0.005-0.02Mpa, behind the steady air flow, slowly open the Gas flow-limiting valve, and the pressure of U-tube manometer 92 is adjusted in 32 centimeter water columns.After U-tube manometer 92 is stable, read the numerical value of gas meter 94, by converting, can obtain weighing the time coefficient index of the air permeability of barrier film 100.
Claims (9)
1. lithium battery diaphragm air permeability proving installation, comprise first air chamber and connect the admission gear of first air chamber, it is characterized in that: also comprise second air chamber and the gas meter that is connected with second air chamber, barrier film to be measured is installed between described first air chamber and second air chamber.
2. lithium battery diaphragm air permeability proving installation according to claim 1 is characterized in that: further comprise the pressure gauge that connects described first air chamber.
3. lithium battery diaphragm air permeability proving installation according to claim 2, it is characterized in that: described admission gear comprises the intake interface of being located on the casing, and the Gas flow-limiting valve of being located at the gas pressure reducer that is connected with intake interface in the casing, the air pressure test chart that is connected with the gas pressure reducer gas outlet and being connected with the endpiece of air pressure test chart, the outlet of described Gas flow-limiting valve connects described first air chamber.
4. lithium battery diaphragm air permeability proving installation according to claim 3 is characterized in that: described first air chamber and second air chamber link to each other by ring flange, and all install packoff on the ring flange.
5. lithium battery diaphragm air permeability proving installation according to claim 4, it is characterized in that: described second air chamber is the square contiguous block away from an end of described first air chamber, it is inlaid in first fixed block that is fixed in described casing top, and be connected with an end of adjusting screw(rod), the other end of adjusting screw(rod) is established handle after second fixed block that is fixed in described casing top passes.
6. lithium battery diaphragm air permeability proving installation according to claim 5 is characterized in that: the end that the portion of described adjusting screw(rod) between first fixed block and second fixed block is positioned near second fixed block is provided with ring shaped step.
7. lithium battery diaphragm air permeability proving installation according to claim 3, it is characterized in that: the lateral surface of casing is established working panel, and the knob of gas pressure reducer, Gas flow-limiting valve, the scale dial plate and the digital display screen of air pressure test chart are installed on the described working panel.
8. lithium battery diaphragm air permeability proving installation according to claim 3 is characterized in that: a connecting hole device is established in described casing back, is used for connecting described first air chamber for described pressure gauge.
9. lithium battery diaphragm air permeability proving installation according to claim 5 is characterized in that: described first air chamber is fixed by two square iron hoops that are installed in the casing top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201183236U CN201014975Y (en) | 2007-01-29 | 2007-01-29 | Lithium battery septum permeability testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201183236U CN201014975Y (en) | 2007-01-29 | 2007-01-29 | Lithium battery septum permeability testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201014975Y true CN201014975Y (en) | 2008-01-30 |
Family
ID=39026775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201183236U Expired - Lifetime CN201014975Y (en) | 2007-01-29 | 2007-01-29 | Lithium battery septum permeability testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201014975Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102033030A (en) * | 2009-09-25 | 2011-04-27 | 莫林斯股份有限公司 | Measurement apparatus |
| CN103234731A (en) * | 2013-04-16 | 2013-08-07 | 安徽德擎电池科技有限公司 | Micropore flow performance testing equipment |
| CN108051352A (en) * | 2017-12-08 | 2018-05-18 | 成都迈德克科技有限公司 | A kind of bandage device for checking air permeability and method |
| CN108295665A (en) * | 2017-12-14 | 2018-07-20 | 洛阳双瑞风电叶片有限公司 | A kind of device and method of quantitative assessment flexibility semi-permeable membrane gas permeability |
-
2007
- 2007-01-29 CN CNU2007201183236U patent/CN201014975Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102033030A (en) * | 2009-09-25 | 2011-04-27 | 莫林斯股份有限公司 | Measurement apparatus |
| US8744792B2 (en) | 2009-09-25 | 2014-06-03 | Molins Plc | Measurement apparatus |
| CN102033030B (en) * | 2009-09-25 | 2015-06-17 | 莫林斯股份有限公司 | Measurement apparatus |
| CN103234731A (en) * | 2013-04-16 | 2013-08-07 | 安徽德擎电池科技有限公司 | Micropore flow performance testing equipment |
| CN108051352A (en) * | 2017-12-08 | 2018-05-18 | 成都迈德克科技有限公司 | A kind of bandage device for checking air permeability and method |
| CN108295665A (en) * | 2017-12-14 | 2018-07-20 | 洛阳双瑞风电叶片有限公司 | A kind of device and method of quantitative assessment flexibility semi-permeable membrane gas permeability |
| CN108295665B (en) * | 2017-12-14 | 2020-04-14 | 洛阳双瑞风电叶片有限公司 | Device and method for quantitatively evaluating gas permeability of flexible semipermeable membrane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105588796B (en) | A kind of device of accurate quick measure soil permeability coefficient | |
| CN203658217U (en) | Seepage starting pressure gradient test device | |
| CN102607990A (en) | Whole-range automatic testing method and device for gas desorbing speed of coal sample | |
| CN201014975Y (en) | Lithium battery septum permeability testing device | |
| CN102527245B (en) | A kind of device, system and method that membrane separating property is tested | |
| CN102980637B (en) | A kind of liquid level sensor liquid level demarcates pick-up unit and method | |
| CN106644605B (en) | Device and method for collecting bubble gas in geothermal water | |
| CN101696890B (en) | Method and device for calibrating flow of gas combustibility test | |
| CN205280548U (en) | Simple and easy detection device of concrete porosity of permeating water | |
| CN203594590U (en) | Detection device of oil pump | |
| CN207649856U (en) | A kind of fuel cell bipolar plate tightness detection device | |
| CN204330517U (en) | Under High Temperature High Pressure, the test of shale gas air content gathers and measuring apparatus | |
| CN203758871U (en) | True density and porosity analyzer | |
| CN209117539U (en) | A kind of device of the dirty stifled potentiality of evaluation counter-infiltration system water inlet | |
| CN213364173U (en) | Compact explosion-proof valve pressure release detector of breathing freely | |
| CN201425569Y (en) | Testing clamp with longitudinal and transverse permeating degree of testing materials and tester | |
| CN201199192Y (en) | Tester for sealing property of hydrogen-cooled generator | |
| CN114923833B (en) | High osmotic concrete osmotic coefficient's survey device | |
| CN201348602Y (en) | Carbon rod air permeability testing device | |
| CN201924910U (en) | Tank type weighing measuring device | |
| CN107677582A (en) | A kind of method of testing and its device of lithium ion battery separator transparent liquid rate | |
| CN212364012U (en) | Multifunctional permeable pavement material permeability coefficient testing instrument | |
| CN203275230U (en) | Gas fast measuring analyzer | |
| CN202735020U (en) | Pressure measuring device | |
| CN104155207A (en) | Gas content desorption testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN BANGKAI NEW ENERGY CO., LTD. Free format text: FORMER NAME: SHENZHEN BANGKAI ELECTRONICS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Guangdong city of Shenzhen province Baoan District postcode town of Longhua Dalang Village Huarong Road Hongfu Industrial Zone, 518000 Patentee after: Shenzhen B & K Rechargeable Battery Inc. Address before: Guangdong city of Shenzhen province Baoan District postcode town of Longhua Dalang Village Huarong Road Hongfu Industrial Zone, 518000 Patentee before: Bangkai Electronic Co., Ltd., Shenzhen City |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080130 |