CN109827862A - Experimental device for quantitative test electrolyte infiltration nature - Google Patents
Experimental device for quantitative test electrolyte infiltration nature Download PDFInfo
- Publication number
- CN109827862A CN109827862A CN201910227696.4A CN201910227696A CN109827862A CN 109827862 A CN109827862 A CN 109827862A CN 201910227696 A CN201910227696 A CN 201910227696A CN 109827862 A CN109827862 A CN 109827862A
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- China
- Prior art keywords
- electrolyte
- bottle
- air
- pole piece
- battery pole
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 52
- 238000012113 quantitative test Methods 0.000 title claims description 12
- 238000001764 infiltration Methods 0.000 title abstract description 10
- 230000008595 infiltration Effects 0.000 title abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000012360 testing method Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 abstract description 6
- 238000005303 weighing Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Secondary Cells (AREA)
Abstract
The invention discloses an experimental device for quantitatively testing the wettability of electrolyte, which comprises a bracket formed by connecting a cross beam and a vertical beam, wherein a sealing bottle for containing electrolyte to be tested is arranged in the bracket, a sealing mechanism is assembled at the top of the sealing bottle, and a battery pole piece for testing the wettability of the electrolyte to be tested is arranged in the sealing bottle; the battery pole piece is connected with a balance device which is erected on a support above the sealing bottle and used for measuring the weight change of the battery pole piece through an inelastic rope penetrating through the sealing mechanism. According to the invention, the pole pieces are connected through the non-elastic ropes, and the electronic balance is adopted for weighing, so that the infiltration amount and the infiltration speed of the electrolyte of the battery pole piece in the electrolyte infiltration process are measured, and therefore, the electrolyte infiltration performance is tested.
Description
Technical field
The present invention relates to lithium battery checking equipment technical field, especially a kind of experiment dress for testing electrolyte wellability
It sets.
Background technique
In recent years, with the development of new energy technology and market, lithium battery has become the most important power of electric car
One of power supply.Lithium battery generally comprises four pole plate, electrolyte, diaphragm and shell parts, and diaphragm is generally arranged at the two of battery
Between a pole plate, main function is to prevent positive and negative interpolar from forming electronic conduction circuit, while can have again allows ion to be connected, pole
Plate and diaphragm are soaked in the electrolyte in shell, and electrolyte refers to the important performance that the wellability of diaphragm and pole plate is battery
One of mark.
In the prior art, the test of electrolyte wellability is relatively complicated, and in the experimental facilities of electrolyte seal aspect
It is complex, it is very inconvenient when leading to experimental implementation.In the chemical journal of 2010 68 (10) phases of document, exert beautiful Yan Nazhu's
" diaphragm is to magnesium deposition-dissolving out capability influence in BMImBF4 il electrolyte " text, discloses by measuring material pair
The absorbency of electrolyte speculates that electrolyte to the wellability of material, material is impregnated in the electrolytic solution, title is utilized with fluidity is held
Weight method calculates the difference percentage for impregnating front and back material weight.The above method by judging indirectly, come by the method for range estimation or timing
Judge the wellability of electrolyte, error is larger, and accuracy is low, and the positive and negative pole material by being tested in powder state not
The ingredients such as conductive agent, binder are added, therefore actual battery electrolyte inside cannot be simulated to the impregnation process of pole plate and diaphragm.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of realities for operating convenient and fast quantitative test electrolyte wellability
Experiment device, to improve the accuracy of working efficiency and measurement.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
A kind of experimental provision of quantitative test electrolyte wellability, including the bracket connected and composed by crossbeam and vertical beam, branch
It is provided with the air-tight bottle for containing electrolyte to be tested in frame, is fitted with sealing mechanism at the top of air-tight bottle, air-tight bottle is built-in with reality
Test the battery pole piece of electrolyte wellability to be tested；The nonelastic rope that the battery pole piece passes through sealing mechanism by one connects
It one is erected on air-tight bottle overhead support, the balance unit for measuring battery pole piece weight change.
A kind of experimental provision of above-mentioned quantitative test electrolyte wellability, the sealing mechanism include being fitted in air-tight bottle top
The annular bottle cap at end offers annular groove on the top end face of annular bottle cap, is fitted with sealing cover in annular groove；The no bullet
Property rope pass through the through-hole in the middle part of sealing cover and annular bottle cap after extend into air-tight bottle.
A kind of experimental provision of above-mentioned quantitative test electrolyte wellability is filled with Seal Oil in the annular groove.
The experimental provision of above-mentioned quantitative test electrolyte wellability a kind of, the balance unit are used and are weighed with lower draw-bar
Electronic balance.
Due to using above technical scheme, the invention technological progress is as follows.
The present invention connects pole piece by nonelastic rope, using electronic balance weighing, soaks to measure battery pole piece in electrolyte
The infiltration amount and wetting velocity of electrolyte in profit, to test the wellability of electrolyte, structure is simple, easy to operate, tests number
According to accuracy height, there is very high practicability.The equipped sealing mechanism in air-tight bottle top, can be effectively prevented electrolysis in the present invention
The volatilization of liquid improves the accuracy of experimental data.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Wherein: 1. electronic balances, 2. nonelastic ropes, 3. brackets, 4. sealing covers, 5. battery pole pieces, 6. electrolyte, 7. sealings
Bottle, 8. annular bottle caps, 9. Seal Oils.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in further detail.
A kind of experimental provision of quantitative test electrolyte wellability, as shown in Figure 1, including bracket, balance unit and sealing
Bottle, balance unit are erected on bracket 3, and sealing bottle is located in the bracket below balance, are contained in air-tight bottle to be measured
It tries electrolyte and tests the battery pole piece 5 of electrolyte, wherein battery pole piece is connect by nonelastic rope 2 with balance unit.
The structure of bracket 3 by crossbeam and vertical beam as shown in Figure 1, connected and composed.
Sealing bottle includes air-tight bottle 7 and sealing mechanism, and air-tight bottle 7 and sealing mechanism are all made of anti-corrosion material production,
Air-tight bottle 7 is located at the underface of balance unit, and sealing mechanism is fitted in the top of air-tight bottle 7.Air-tight bottle 7 is to be tested for containing
Electrolyte, battery pole piece 5 is immersed in electrolyte to be tested, for testing the wellability of electrolyte to be tested.
The structure of sealing mechanism as shown in Figure 1, for playing sealing function to the electrolyte to be tested in air-tight bottle, including
It is fitted in the annular bottle cap 8 on air-tight bottle top, annular groove is offered on the top end face of annular bottle cap, is fitted in annular groove
Seal Oil 9 is filled in 4 annular groove of sealing cover.The nonelastic rope is passed through from top to bottom in the middle part of sealing cover and annular bottle cap
Through-hole after extend into air-tight bottle.
Balance unit uses the electronic balance weighed with lower draw-bar, for measuring the variation of battery pole piece weight, further
The wetting velocity and infiltration amount of electrolyte to be tested is calculated.
For convenience of experimental implementation, nonelastic rope can be divided into two sections, wherein one section of hook for being fixedly connected with electronic balance and
When the length of sealing cover, this section of nonelastic rope seals to air-tight bottle with sealing mechanism at sealing cover to electronic balance hook
Length；A suspension hook is fixedly installed in the lower section of sealing cover, and the top of second segment is nonelastic rope and suspension hook below sealing cover are solid
Fixed connection, the other end are then used to connect experiment battery pole piece.
Electrolyte to be tested in use, be injected into air-tight bottle, then in the bottom end of nonelastic rope company by the present invention first
Experiment battery pole piece is connect, and is put it into electrolyte.In the moment that battery pole piece is put into electrolyte, nonelastic rope by
When power, electronic balance numerical value is reset, starts timing at this time, the time records quality registration in certain intervals, until matter
Amount does not terminate to record in variation, can analyze by the data of record and calculates the total infiltration amount of electrolyte and electrolyte in electricity
Wetting velocity on the pole piece of pond, to carry out the comparison of wellability to different electrolyte using the two data.
In the present invention, the setting of nonelastic rope and sealing mechanism can make electronic balance accurately show electrolyte infiltration amount
Quality, so that the infiltration amount of quantitative accurate measurement electrolyte, substantially increases the accuracy of experiment.
Claims (4)
1. a kind of experimental provision of quantitative test electrolyte wellability, it is characterised in that: including being connected and composed by crossbeam and vertical beam
Bracket (3), be provided with the air-tight bottle (7) for containing electrolyte to be tested in bracket, air-tight bottle is fitted with sealer at the top of (7)
Structure, air-tight bottle are built-in with the battery pole piece (5) for testing electrolyte wellability to be tested；The battery pole piece (5) is worn by one
Nonelastic rope (2) connection one for crossing sealing mechanism is erected on air-tight bottle overhead support, for measuring battery pole piece weight change
Balance unit.
2. a kind of experimental provision of quantitative test electrolyte wellability according to claim 1, it is characterised in that: described close
Sealing mechanism includes the annular bottle cap (8) for being fitted in air-tight bottle top, offers annular groove on the top end face of annular bottle cap, annular
Sealing cover (4) are fitted in groove；The nonelastic rope extend into close after the through-hole in the middle part of sealing cover and annular bottle cap
It seals in bottle.
3. a kind of experimental provision of quantitative test electrolyte wellability according to claim 2, it is characterised in that: the ring
Seal Oil (9) are filled in connected in star.
4. a kind of experimental provision of quantitative test electrolyte wellability according to claim 1, it is characterised in that: the day
Leveling device uses the electronic balance weighed with lower draw-bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910227696.4A CN109827862A (en) | 2019-03-25 | 2019-03-25 | Experimental device for quantitative test electrolyte infiltration nature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910227696.4A CN109827862A (en) | 2019-03-25 | 2019-03-25 | Experimental device for quantitative test electrolyte infiltration nature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109827862A true CN109827862A (en) | 2019-05-31 |
Family
ID=66872084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910227696.4A Pending CN109827862A (en) | 2019-03-25 | 2019-03-25 | Experimental device for quantitative test electrolyte infiltration nature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109827862A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487665A (en) * | 2019-08-23 | 2019-11-22 | 深圳市比克动力电池有限公司 | A kind of wellability detection method of pole piece |
| CN111562193A (en) * | 2020-05-14 | 2020-08-21 | 惠州亿纬锂能股份有限公司 | Evaluation method for liquid retention effect of material for lithium ion battery |
| CN116008117A (en) * | 2023-03-28 | 2023-04-25 | 宁德时代新能源科技股份有限公司 | Battery infiltration test method, test equipment, device and computer equipment |
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| CN201928947U (en) * | 2011-01-20 | 2011-08-17 | 蓝秀宏 | Environment-friendly pickle jar cover |
| CN202047431U (en) * | 2011-04-30 | 2011-11-23 | 云南省建筑科学研究院 | Water seal type inspection well cover |
| CN202421021U (en) * | 2012-01-13 | 2012-09-05 | 北京化学试剂研究所 | Device for measuring wetting property of battery electrolyte to battery material |
| CN203238246U (en) * | 2013-05-26 | 2013-10-16 | 河北衡水老白干酒业股份有限公司 | Stainless steel cover body for sealing liquor fermentation tank |
| CN103512821A (en) * | 2013-09-13 | 2014-01-15 | 深圳市星源材质科技有限公司 | Method for testing liquid absorption rate of battery diaphragm |
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| CN206930555U (en) * | 2017-07-19 | 2018-01-26 | 天津市捷威动力工业有限公司 | Lithium battery diaphragm pole piece wet-out rate test device |
| CN108663279A (en) * | 2018-04-27 | 2018-10-16 | 中航锂电（洛阳）有限公司 | A kind of measurement device of battery pole piece absorbency |
| CN209707298U (en) * | 2019-03-25 | 2019-11-29 | 湖州昆仑动力电池材料有限公司 | A kind of experimental provision of quantitative test electrolyte wellability |
-
2019
- 2019-03-25 CN CN201910227696.4A patent/CN109827862A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201928947U (en) * | 2011-01-20 | 2011-08-17 | 蓝秀宏 | Environment-friendly pickle jar cover |
| CN202047431U (en) * | 2011-04-30 | 2011-11-23 | 云南省建筑科学研究院 | Water seal type inspection well cover |
| CN202421021U (en) * | 2012-01-13 | 2012-09-05 | 北京化学试剂研究所 | Device for measuring wetting property of battery electrolyte to battery material |
| CN203238246U (en) * | 2013-05-26 | 2013-10-16 | 河北衡水老白干酒业股份有限公司 | Stainless steel cover body for sealing liquor fermentation tank |
| CN103512821A (en) * | 2013-09-13 | 2014-01-15 | 深圳市星源材质科技有限公司 | Method for testing liquid absorption rate of battery diaphragm |
| CN205808865U (en) * | 2016-07-01 | 2016-12-14 | 合肥国轩高科动力能源有限公司 | A kind of device for evaluating electrodes of lithium-ion batteries absorbent |
| CN206930555U (en) * | 2017-07-19 | 2018-01-26 | 天津市捷威动力工业有限公司 | Lithium battery diaphragm pole piece wet-out rate test device |
| CN108663279A (en) * | 2018-04-27 | 2018-10-16 | 中航锂电（洛阳）有限公司 | A kind of measurement device of battery pole piece absorbency |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487665A (en) * | 2019-08-23 | 2019-11-22 | 深圳市比克动力电池有限公司 | A kind of wellability detection method of pole piece |
| CN111562193A (en) * | 2020-05-14 | 2020-08-21 | 惠州亿纬锂能股份有限公司 | Evaluation method for liquid retention effect of material for lithium ion battery |
| CN116008117A (en) * | 2023-03-28 | 2023-04-25 | 宁德时代新能源科技股份有限公司 | Battery infiltration test method, test equipment, device and computer equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 313103 South Industrial Functional Zone of Heping Town, Changxing County, Huzhou City, Zhejiang Province Applicant after: Huzhou Kunlun yienke battery material Co.,Ltd. Address before: 313103 South Industrial Functional Zone of Heping Town, Changxing County, Huzhou City, Zhejiang Province Applicant before: HUZHOU KUNLUN POWER BATTERY MATERIAL Co.,Ltd. |
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| CB02 | Change of applicant information |