CN108776311A - A kind of quadrate lithium battery inflatable detection device and detection method - Google Patents
A kind of quadrate lithium battery inflatable detection device and detection method Download PDFInfo
- Publication number
- CN108776311A CN108776311A CN201810934468.6A CN201810934468A CN108776311A CN 108776311 A CN108776311 A CN 108776311A CN 201810934468 A CN201810934468 A CN 201810934468A CN 108776311 A CN108776311 A CN 108776311A
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- Prior art keywords
- plane clamping
- clamping plate
- battery
- digital display
- display dial
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Links
- 238000001514 detection method Methods 0.000 title claims abstract description 26
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 22
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000008602 contraction Effects 0.000 claims abstract description 25
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 abstract description 9
- 238000012360 testing method Methods 0.000 abstract description 9
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 230000010261 cell growth Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention relates to a kind of quadrate lithium battery inflatable detection devices, including U-shaped pedestal, it is arranged with plane clamping plate in the U-shaped pedestal, battery to be detected is placed between two plane clamping plates, and the distance between two plane clamping plates are less than the thickness of battery to be detected, the plane clamping plate is connect by spring contraction bar with the side of U-shaped pedestal, the U-shaped pedestal left and right sides symmetrically connect digital display dial gauge, the measurement head of the digital display dial gauge is contacted with the side of plane clamping plate, and the measurement axis of the digital display dial gauge is vertical with the side of plane clamping plate.The present invention can accurate, real time monitoring lithium battery thickness change, the drawbacks of avoiding visually observing cell expansion, and timely can intuitively show the thickness change of battery bulging, corresponding treating method is made in time, to ensure the accuracy of test data, while ensureing test safety.
Description
Technical field
The present invention relates to technical field of lithium batteries, and in particular to a kind of quadrate lithium battery inflatable detection device and detection side
Method, for instructing lithium battery to design and manufacturing process.
Background technology
With the energy density of power battery, safety requirement be continuously improved, as simultaneously take into account energy density and peace
The power market of the big share of ternary material tabernacle of full property, ternary material nickel content ratio are consequently increased.As a height
The substance of alkalinity, strong absorptive easily causes battery core drying due to factors such as environment, processing procedure controls in cell production process
It absorbs water again after roasting and causes the battery bulging in charge and discharge process.In the prior art, rectangular cell inflatable mainly passes through extremely
Vernier caliper test or visually observe whether bulging, and when thickness change is smaller, above two method can not be accurately positioned
Inflatable degree.Inflatable battery will cause the deformation of battery case, size to change, and influence subsequent PACK assemblings, while inflatable
There is certain pressure inside battery case, chemical property and the safety of battery will be influenced.
Invention content
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of quadrate lithium battery inflatable detection device and detection sides
Method, can accurate, real time monitoring lithium battery thickness change ensure that battery is every to instruct lithium battery to design and manufacture process control
Performance.
The object of the present invention is achieved like this：
A kind of quadrate lithium battery inflatable detection device, including U-shaped pedestal are arranged with plane clamping plate in the U-shaped pedestal, to be checked
It surveys battery to be placed between two plane clamping plates, and the distance between two plane clamping plates are less than the thickness of battery to be detected, it is described
Plane clamping plate is connect by spring contraction bar with the side of U-shaped pedestal, and the U-shaped pedestal left and right sides symmetrically connect digital display thousand
Point table, the measurement head of the digital display dial gauge are contacted with the side of plane clamping plate, the measurement axis of the digital display dial gauge with put down
The side of face clamping plate is vertical.
Preferably, the side of the U-shaped pedestal corresponds to spring contraction bar and is equipped with through-hole, and the plane clamping plate corresponds to spring receipts
Contracting bar is equipped with counterbore, and the counterbore connect by the first screw with spring contraction bar, one end correspondence of the spring contraction bar the
One screw is equipped with screw hole.
Preferably, the digital display dial gauge is fixed on fixing piece, and the U-shaped pedestal corresponds to fixing piece and is equipped with mounting hole,
The mounting hole passes through the second screw connection with fixing piece.
Preferably, it is evenly equipped with heat emission hole on the plane clamping plate.
Preferably, there are four the spring contraction bar between the plane clamping plate and U-shaped pedestal of homonymy is set, the plane clamping plate pair
Each spring contraction bar is answered to be equipped with counterbore, the counterbore is distributed on the surrounding of planar side plates, the spring contraction bar and digital display thousand
Divide the measurement axis of table parallel.
A kind of quadrate lithium battery inflatable detection method, using above-mentioned detection device, detection method includes the following steps：
Step 1: battery to be detected is placed between two plane clamping plates；
Step 2: the measurement head of two digital display dial gauges to be peaked to the outside of plane clamping plate, by two digital display dial gauges before measuring
Scale returns to zero；
Step 3: battery to be detected is carried out charge and discharge, battery squeezes plane clamping plate with expansion outward, digital display dial gauge
Numerical value changes therewith；
Step 4: the status data and cell thickness delta data of acquisition battery, draw difference curve；
Step 5: analyzing each item data by comparing, inflatable judgement is carried out to battery to be detected.
Preferably, the cell thickness delta data of the step 4 is by two digital display dial gauges the two of the same period
A data are added.
The beneficial effects of the invention are as follows：
The present invention can accurate, real time monitoring lithium battery thickness change, the drawbacks of avoiding visually observing cell expansion, and can be timely
The intuitive thickness change for showing battery bulging, corresponding treating method is made in time, to ensure the accurate of test data
Property, while ensureing test safety.
Description of the drawings
Fig. 1 is the front view of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the assembling schematic diagram of Fig. 1.
Wherein：Detect battery 1；U-shaped pedestal 2；Through-hole 21；Mounting hole 22；Plane clamping plate 3；Counterbore 31；Heat emission hole 32；The
One screw 33；Spring contraction bar 4；Screw hole 41；Digital display dial gauge 5；Fixing piece 51；Second screw 52.
Specific implementation mode
It is described U-shaped the present invention relates to a kind of quadrate lithium battery inflatable detection device, including U-shaped pedestal 2 referring to Fig. 1-Fig. 4
Pedestal 2 is S201 or S304 stainless steels, it is desirable that bottom level, both sides and bottom are in 90 ° of right angles, right in the U-shaped pedestal 2
Claim to be equipped with plane clamping plate 3, the plane clamping plate 3 is PP resin materials, and each edge is equipped with chamfering, and battery 1 to be detected is placed in two
Between plane clamping plate 3, the distance between two plane clamping plates 3 are less than the thickness of battery 1 to be detected, the height of the plane clamping plate 3
Degree is the 2/3 of 1 height of battery to be detected, and the plane clamping plate 3 is connect by spring contraction bar 4 with the side of U-shaped pedestal 2, institute
It states 2 left and right sides of U-shaped pedestal and symmetrically connects digital display dial gauge 5, measurement head and the plane clamping plate 3 of the digital display dial gauge 5
Side contacts, and the measurement axis of the digital display dial gauge 5 is vertical with the side of plane clamping plate 3；The test of the digital display dial gauge 5
Distance is 0.001-3mm, has setting time and interval writing function, and can export record data.
The side of the U-shaped pedestal 2 corresponds to spring contraction bar 4 and is equipped with through-hole 21, and the plane clamping plate 3 corresponds to spring contraction
Bar 4 is equipped with counterbore 31, and the counterbore 31 is connect by the first screw 33 with spring contraction bar 4, one end of the spring contraction bar 4
Corresponding first screw 33 is equipped with screw hole 41.
The digital display dial gauge 5 is fixed on fixing piece 51, and the U-shaped pedestal 2 corresponds to fixing piece 51 and is equipped with mounting hole 22,
The mounting hole 22 is connect with fixing piece 51 by the second screw 52.
It is evenly equipped with heat emission hole 32 on the plane clamping plate 3.32 good heat dissipation effect of the heat emission hole, effectively reduces battery and fills
The Wen Sheng generated in discharge process.
There are four spring contraction bar 4 between the plane clamping plate 3 and U-shaped pedestal of homonymy is set, the plane clamping plate 3 corresponds to often
A spring contraction bar 4 is equipped with counterbore 31, and the counterbore 31 is distributed on the surrounding of planar side plates, the spring contraction bar 4 and digital display
The measurement axis of amesdial 5 is parallel.
A kind of quadrate lithium battery inflatable detection method, using above-mentioned detection device, detection method includes the following steps：
Step 1: battery to be detected is placed between two plane clamping plates；
Step 2: the measurement head of two digital display dial gauges to be peaked to the outside of plane clamping plate, by two digital display dial gauges before measuring
Scale returns to zero；
Step 3: battery to be detected is carried out charge and discharge, battery squeezes plane clamping plate with expansion outward, digital display dial gauge
Numerical value changes therewith；
Step 4: the status data and cell thickness delta data of acquisition battery, draw difference curve；
Step 5: analyzing each item data by comparing, inflatable judgement is carried out to battery to be detected.
The cell thickness delta data is that two data by two digital display dial gauges in the same period are added.
The battery status data includes voltage, electric current and efficiency for charge-discharge, the battery status that the step 4 is acquired
Data are wherein at least one.
Embodiment 1：
Between battery to be detected is placed in two plane clamping plates, the measurement head of two digital display dial gauges is peaked at into the outer of plane clamping plate
Two digital display dial gauge scales are returned to zero before measuring in side, and battery to be detected is carried out charge and discharge, and battery is with expansion by plane clamping plate
It squeezes outward, the numerical value of digital display dial gauge changes therewith；Two status datas of cell voltage and efficiency for charge-discharge are acquired,
Two data by two digital display dial gauges in the same period are added to obtain cell thickness delta data, by real time monitoring and
Timing storage test data, can be corresponding with the variation of thickness by the variation of voltage, the relatively normal electricity of inflatable battery charging voltage
Pond charging voltage slightly fluctuates, and there are water electrolysis platforms, while entire inflatable battery charging curve voltage location will be located at just
The top of normal battery charging curve voltage.It, can be by the variation of voltage and thickness by real time monitoring and timing storage test data
Variation it is corresponding, therefore can intuitively contrast the difference of battery cell thickness under different voltage.By to battery testing
The curve of the data such as voltage, efficiency for charge-discharge and corresponding thickness are compared, to whether analyze battery due to water
Point electrolysis aerogenesis and bulging.
Since inflatable battery is in charging process, the electrolyte meeting aerogenesis of moisture, voltage platform can increase, and curve has wave
Peak occurs, and thickness also increases, and normal battery charging curve more smoothes out, and not will produce wave crest, thickness change unobvious, therefore
Inflatable cell thickness is higher than normal battery thickness, and has wave crest appearance on curve.
In addition to the implementation, all to use equivalent transformation or equivalent replacement the invention also includes there is an other embodiment
The technical solution that mode is formed should all be fallen within the scope of the hereto appended claims.
Claims (7)
1. a kind of quadrate lithium battery inflatable detection device, it is characterised in that：Including U-shaped pedestal（2）, the U-shaped pedestal（2）It is interior right
Claim to be equipped with plane clamping plate（3）, battery to be detected（1）It is placed in two plane clamping plates（3）Between, and two plane clamping plates（3）Between
Distance be less than battery to be detected（1）Thickness, the plane clamping plate（3）Pass through spring contraction bar（4）With U-shaped pedestal（2）'s
Side connects, the U-shaped pedestal（2）Left and right sides symmetrically connect digital display dial gauge（5）, the digital display dial gauge（5）Survey
Measure head and plane clamping plate（3）Side contact, the digital display dial gauge（5）Measurement axis and plane clamping plate（3）Side hang down
Directly.
2. a kind of quadrate lithium battery inflatable detection device according to claim 1, it is characterised in that：The U-shaped pedestal（2）
Side correspond to spring contraction bar（4）Equipped with through-hole（21）, the plane clamping plate（3）Corresponding spring contraction bar（4）Equipped with counterbore
（31）, the counterbore（31）Pass through the first screw（33）With spring contraction bar（4）Connection, the spring contraction bar（4）One end
Corresponding first screw（33）Equipped with screw hole（41）.
3. a kind of quadrate lithium battery inflatable detection device according to claim 1, it is characterised in that：The digital display dial gauge
（5）It is fixed on fixing piece（51）On, the U-shaped pedestal（2）Corresponding fixing piece（51）Equipped with mounting hole（22）, the mounting hole
（22）With fixing piece（51）Pass through the second screw（52）Connection.
4. a kind of quadrate lithium battery inflatable detection device according to claim 1, it is characterised in that：The plane clamping plate
（3）On be evenly equipped with heat emission hole（32）.
5. a kind of quadrate lithium battery inflatable detection device according to claim 2, it is characterised in that：The plane clamping plate of homonymy
（3）Spring contraction bar between U-shaped pedestal（4）There are four if, the plane clamping plate（3）Corresponding each spring contraction bar（4）
Equipped with counterbore（31）, the counterbore（31）It is distributed on the surrounding of planar side plates, the spring contraction bar（4）With digital display dial gauge
（5）Measurement axis it is parallel.
6. a kind of quadrate lithium battery inflatable detection method according to claim 1, it is characterised in that：Using claim 1-
Detection device described in one of 5, detection method includes the following steps：
Step 1: battery to be detected is placed between two plane clamping plates；
Step 2: the measurement head of two digital display dial gauges to be peaked to the outside of plane clamping plate, by two digital display dial gauges before measuring
Scale returns to zero；
Step 3: battery to be detected is carried out charge and discharge, battery squeezes plane clamping plate with expansion outward, digital display dial gauge
Numerical value changes therewith；
Step 4: the status data and cell thickness delta data of acquisition battery, draw difference curve；
Step 5: analyzing each item data by comparing, inflatable judgement is carried out to battery to be detected.
7. a kind of quadrate lithium battery inflatable detection method according to claim 6, it is characterised in that：
The cell thickness delta data of the step 4 is that two data by two digital display dial gauges in the same period are added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934468.6A CN108776311A (en) | 2018-08-16 | 2018-08-16 | A kind of quadrate lithium battery inflatable detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934468.6A CN108776311A (en) | 2018-08-16 | 2018-08-16 | A kind of quadrate lithium battery inflatable detection device and detection method |
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| Publication Number | Publication Date |
|---|---|
| CN108776311A true CN108776311A (en) | 2018-11-09 |
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ID=64029371
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|---|---|---|---|
| CN201810934468.6A Pending CN108776311A (en) | 2018-08-16 | 2018-08-16 | A kind of quadrate lithium battery inflatable detection device and detection method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916365A (en) * | 2019-03-15 | 2019-06-21 | 江苏中兴派能电池有限公司 | A kind of battery pack bulging protective device, detection system and detection method |
| CN109959360A (en) * | 2019-03-20 | 2019-07-02 | 上海卡耐新能源有限公司 | A kind of measuring system and method for soft package lithium battery cathode expansion rate |
| CN109974655A (en) * | 2019-02-27 | 2019-07-05 | 天津锦美碳材科技发展有限公司 | A kind of apparatus and method for of online no pressure detection lithium battery silicon-carbon cathode pole piece expansion |
| CN109994784A (en) * | 2019-02-28 | 2019-07-09 | 天津力神电池股份有限公司 | A kind of polymer core coil needle debugging tool |
| CN110319794A (en) * | 2019-05-30 | 2019-10-11 | 常州金标轨道交通技术服务有限公司 | Dalle all-round property testing method |
| CN110947640A (en) * | 2019-12-13 | 2020-04-03 | 西安锐驰电器有限公司 | Battery gas expansion detection system and detection method |
| CN111602704A (en) * | 2020-05-15 | 2020-09-01 | 天津农学院 | Fish body cuts open cuts dirty device |
| CN113543543A (en) * | 2021-06-04 | 2021-10-22 | 安徽千航新能源科技有限公司 | Lithium battery test explosion-proof device |
| CN113624275A (en) * | 2021-07-20 | 2021-11-09 | 浙江南都电源动力股份有限公司 | Test detection method for multiple states in lithium battery cycle test |
| CN113654615A (en) * | 2021-07-20 | 2021-11-16 | 北京理工大学 | Device and method for testing real-time gas production rate in battery |
| CN114440974A (en) * | 2022-01-18 | 2022-05-06 | 上海工程技术大学 | Battery expansion displacement and temperature in-situ measuring device |
| CN114739444A (en) * | 2022-04-13 | 2022-07-12 | 江苏海基新能源股份有限公司 | Method for judging state of winding core |
| WO2023003730A1 (en) * | 2021-07-23 | 2023-01-26 | Celgard, Llc | Improved batteries, cells, components, and testing thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974655A (en) * | 2019-02-27 | 2019-07-05 | 天津锦美碳材科技发展有限公司 | A kind of apparatus and method for of online no pressure detection lithium battery silicon-carbon cathode pole piece expansion |
| CN109994784A (en) * | 2019-02-28 | 2019-07-09 | 天津力神电池股份有限公司 | A kind of polymer core coil needle debugging tool |
| CN109916365A (en) * | 2019-03-15 | 2019-06-21 | 江苏中兴派能电池有限公司 | A kind of battery pack bulging protective device, detection system and detection method |
| CN109959360A (en) * | 2019-03-20 | 2019-07-02 | 上海卡耐新能源有限公司 | A kind of measuring system and method for soft package lithium battery cathode expansion rate |
| CN109959360B (en) * | 2019-03-20 | 2021-06-04 | 上海卡耐新能源有限公司 | System and method for measuring expansion rate of negative electrode of soft package lithium battery |
| CN110319794A (en) * | 2019-05-30 | 2019-10-11 | 常州金标轨道交通技术服务有限公司 | Dalle all-round property testing method |
| CN110947640A (en) * | 2019-12-13 | 2020-04-03 | 西安锐驰电器有限公司 | Battery gas expansion detection system and detection method |
| CN111602704A (en) * | 2020-05-15 | 2020-09-01 | 天津农学院 | Fish body cuts open cuts dirty device |
| CN113543543A (en) * | 2021-06-04 | 2021-10-22 | 安徽千航新能源科技有限公司 | Lithium battery test explosion-proof device |
| CN113624275A (en) * | 2021-07-20 | 2021-11-09 | 浙江南都电源动力股份有限公司 | Test detection method for multiple states in lithium battery cycle test |
| CN113654615A (en) * | 2021-07-20 | 2021-11-16 | 北京理工大学 | Device and method for testing real-time gas production rate in battery |
| WO2023003730A1 (en) * | 2021-07-23 | 2023-01-26 | Celgard, Llc | Improved batteries, cells, components, and testing thereof |
| CN114440974A (en) * | 2022-01-18 | 2022-05-06 | 上海工程技术大学 | Battery expansion displacement and temperature in-situ measuring device |
| CN114440974B (en) * | 2022-01-18 | 2024-01-19 | 上海工程技术大学 | Battery expansion displacement and temperature in-situ measurement device |
| CN114739444A (en) * | 2022-04-13 | 2022-07-12 | 江苏海基新能源股份有限公司 | Method for judging state of winding core |
| CN114739444B (en) * | 2022-04-13 | 2024-04-26 | 江苏海基新能源股份有限公司 | Method for judging state of winding core |
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