CN108692887A - A kind of device for detecting lithium ion battery airtightness - Google Patents

A kind of device for detecting lithium ion battery airtightness Download PDF

Info

Publication number
CN108692887A
CN108692887A CN201810473538.2A CN201810473538A CN108692887A CN 108692887 A CN108692887 A CN 108692887A CN 201810473538 A CN201810473538 A CN 201810473538A CN 108692887 A CN108692887 A CN 108692887A
Authority
CN
China
Prior art keywords
detection
battery core
babinet
clamping plate
admission line
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.)
Pending
Application number
CN201810473538.2A
Other languages
Chinese (zh)
Inventor
王双双
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Guoxuan High Tech Power Energy Co Ltd
Original Assignee
Hefei Guoxuan High Tech Power Energy Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hefei Guoxuan High Tech Power Energy Co Ltd filed Critical Hefei Guoxuan High Tech Power Energy Co Ltd
Priority to CN201810473538.2A priority Critical patent/CN108692887A/en
Publication of CN108692887A publication Critical patent/CN108692887A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors

Abstract

The invention discloses a kind of devices for detecting lithium ion battery airtightness, including detection babinet, admission line, detection pipeline and detector;It detects babinet and is equipped with opening, opening is equipped with drop front, and mobile clamping plate is equipped in detection case body, and detection babinet is equipped with the mechanical valve that mobile clamping plate is connect and controlled with mobile clamping plate in detection box house movement;Admission line is connected to detection box house, and admission line is equipped with the first regulating valve;Detection pipeline is connected to detection box house, and detection pipeline is equipped with the second regulating valve;Detector is connect with detection pipeline.The present invention judges battery core air-tightness, it can be achieved that more battery cores while detecting and be non-destructive testing by bringing pressure to bear on finished product battery core detection electrolysis liquid hold-up, therefore can realize the batch detection to finished product battery core.

Description

A kind of device for detecting lithium ion battery airtightness
Technical field
The present invention relates to technical field of lithium ion more particularly to a kind of dresses for detecting lithium ion battery airtightness It sets.
Background technology
To ensure the electrical property and long circulation life of battery core, initial stage is designed in battery core, to the side such as material system, structure design The optimization in face is key component;In battery core procedure for producing, the control of battery core production environment and making technology is key component;It is right In the battery core that production process is completed, the detection for its quality is also critical process.Ensure the quality of battery core product, at present The project that finished product battery core predominantly detects includes voltage, internal resistance, thickness, quality etc., main for the detection of battery core air-tightness It is in core winding into shell and laser shell postwelding progress air-leakage test, general fashion is that liquid injection hole is directed at air-tightness detection device, Judging whether gas leakage by the instruction of gas gauge, the test method is only applicable to the battery not sealed at present, for The finished product battery core for having completed partial volume process cannot achieve detection.And for the air-leakage test mode of finished product battery core, generally all It is destructive testing method, needs to carry out the gas leakage situation that punching judges by the variation of pressure finished battery in shell, it cannot It realizes to finished product battery core batch detection, detection can only be sampled to battery core.
The air-tightness of battery core is bad to will appear leakage flatulence to influence electrical property and cycle life using process, therefore right It is critically important in the detection of finished product battery core air-tightness, especially single battery core PACK in groups when need to apply certain pressure and carry out about Beam, the probability that leakage occurs in battery core under the action of fettering pressure will increase, and airtight for laser shell shell postwelding battery core at present Property detection be to carry out in the case of electroless liquid, occur after charging with practical battery core and with the presence of battery core in the case of electrolyte The case where leakage, is different, in the case of especially applying certain constraint pressure, it is therefore desirable to a kind of side of pressurization in groups simulation PACK The device that finished product lithium ion battery airtightness is detected under formula, the battery core for having leakage problem could be rejected, battery product is avoided to make With occurring leakage problem in the process.
Invention content
To solve technical problem present in background technology, the present invention proposes a kind of for detecting lithium ion battery airtightness Device.
It is proposed by the present invention a kind of for detecting the device of lithium ion battery airtightness, including detection babinet, admission line, Detect pipeline and detector;It detects babinet and is equipped with opening, opening is equipped with drop front, mobile folder is equipped in detection case body Plate, detection babinet are equipped with the mechanical valve that mobile clamping plate is connect and controlled with mobile clamping plate in detection box house movement;Air inlet Pipeline is connected to detection box house, and admission line is equipped with the first regulating valve;Detection pipeline is connected to detection box house, is examined Test tube road is equipped with the second regulating valve;Detector is connect with detection pipeline.
Preferably, further include the outlet pipe being connected to detection box house, outlet pipe is equipped with third regulating valve.
In the present invention, a kind of device for detecting lithium ion battery airtightness proposed passes through mechanical valve control machine Tool pressure size realizes that admission line is passed through inert gas to battery core a degree of extruding, takes away in detection case body because squeezing Whether gas caused by leakage wherein contains bath composition by detector analysis, judges the gas of battery core into detection pipeline Close property;The present invention realizes pressurization by the way that mechanical valve is arranged, but pressure control can be in tolerance range in battery core, and the setting of pressure value can It is this by applying certain pressure or so, it is easier to will to have air-tightness depending on the pressure born when being packaged according to practical module Problem battery core is rejected;The present invention realizes the detection of leakage battery by admission line with detection pipeline effect, passes through admission line For the inert gas being passed through by seal case because the bath composition of battery core leakage is brought into detection pipeline, detection process is not right Battery core damages, and realizes non-destructive testing;Moveable mobile clamping plate is arranged in the present invention in detection case body, according to battery core specification And quantity carries out side movement clamping plate and adjusts, and is suitable for the detection of different battery core specifications and battery core quantity, it can be achieved that finished product electricity The batch detection of core;The present invention closes detection pipeline, opens outlet pipe, pass through by the way that outlet pipe is arranged after the completion of detection Admission line realizes the cleaning to seal case with outlet pipe convection action, and whether this effect work step can go out according to upper batch There is leakage problem in existing leakage problem flexible modulation, batch battery core as above, and the inert gas being passed through by admission line will be because of leakage Bath composition caused by liquid clears, and the interference of upper and lower batch battery core testing result, batch battery core as above is avoided not to occur leakage Problem, this effect work step can omit.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for detecting the device of lithium ion battery airtightness proposed by the present invention.
Specific implementation mode
As shown in FIG. 1, FIG. 1 is a kind of structures of device for detecting lithium ion battery airtightness proposed by the present invention to show It is intended to.
Referring to Fig.1, a kind of device for detecting lithium ion battery airtightness proposed by the present invention, including detection babinet 1, Admission line 2, detection pipeline 3, outlet pipe 8 and detector 4.It detects babinet 1 and is equipped with opening, opening is equipped with drop front 5, detection babinet 1 is interior to be equipped with mobile clamping plate 6, and detection babinet 1 is equipped with to connect with movement clamping plate 6 and control mobile clamping plate 6 and examine The mobile mechanical valve 7 in 1 inside of measuring tank body.Admission line 2 is connected to 1 inside of detection babinet, and admission line 2 is equipped with first and adjusts Valve 201.Detection pipeline 3 is connected to 1 inside of detection babinet, and detection pipeline 3 is equipped with the second regulating valve 301.Outlet pipe 8 and inspection The 1 inside connection of measuring tank body, outlet pipe 8 are equipped with third regulating valve 801.Detector 4 is connect with detection pipeline 3.
The course of work of the present invention is as follows:Open the drop front 5 of detection babinet 1, it would be desirable to which the battery being detected is put Enter to detect in babinet 1, be then shut off drop front 5 and be sealed, is adjusted and moved by mechanical valve 7 according to the quantity of battery core and specification The position of dynamic clamping plate 6, to apply convenient pressure in battery core, the first regulating valve 201 of opening starts to be passed through inert gas, simultaneously The second regulating valve 301 is opened, bath composition brings detection pipe into simultaneously caused by inert gas will detect 1 internal cause leakage battery core of babinet It is transmitted to detector 4, whether there is or not bath compositions to judge that this batch battery whether there is leakage battery core by the analysis of detector 4, waits for After testing result output, the second valve 301 is closed;It opens drop front 5 to take out this batch of battery, is then shut off drop front 5, third valve 801 is opened, the entrained electrolyte in babinet 1 will be detected by the convection action of admission line 2 and outlet pipe 8 Ingredient cleans, and avoids the interference effect between batch testing result, batch battery core detection as above without leakage problem, this cleaning work step without It needs to carry out, so far work step completes the detection and cleaning to a batch battery core, and rear batch is carried out according to same steps.
In battery core actual production process, there are the general negligible amounts of battery core of leakage problem, therefore can be same by several batteries When be put into the present apparatus and be detected;If one batch battery core of detection has leakage, problem battery core generally can observe after taking out battery There is an electrolyte spilling on surface, such as cannot the battery core of decision problem in time, doubtful problem battery core can be collected, adjust and move after quantity is more The position of dynamic clamping plate 6, to carry out the detection of single battery core.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (2)

1. a kind of device for detecting lithium ion battery airtightness, which is characterized in that including detection babinet (1), admission line (2), detection pipeline (3) and detector (4);It detects babinet (1) and is equipped with opening, opening is equipped with drop front (5), detection case Mobile clamping plate (6) is equipped in body (1), detection babinet (1), which is equipped with to connect with mobile clamping plate (6) and control mobile clamping plate (6), to exist Detect mechanical valve (7) mobile inside babinet (1);It is connected to inside admission line (2) and detection babinet (1), on admission line (2) Equipped with the first regulating valve (201);It is connected to inside detection pipeline (3) and detection babinet (1), detection pipeline (3) is equipped with second and adjusts Save valve (301);Detector (4) is connect with detection pipeline (3).
2. the device according to claim 1 for detecting lithium ion battery airtightness, which is characterized in that further include and examine The outlet pipe (8) being connected to inside measuring tank body (1), outlet pipe (8) are equipped with third regulating valve (801).
CN201810473538.2A 2018-05-17 2018-05-17 A kind of device for detecting lithium ion battery airtightness Pending CN108692887A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810473538.2A CN108692887A (en) 2018-05-17 2018-05-17 A kind of device for detecting lithium ion battery airtightness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810473538.2A CN108692887A (en) 2018-05-17 2018-05-17 A kind of device for detecting lithium ion battery airtightness

Publications (1)

Publication Number Publication Date
CN108692887A true CN108692887A (en) 2018-10-23

Family

ID=63847618

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810473538.2A Pending CN108692887A (en) 2018-05-17 2018-05-17 A kind of device for detecting lithium ion battery airtightness

Country Status (1)

Country Link
CN (1) CN108692887A (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101034032A (en) * 2007-04-27 2007-09-12 天津力神电池股份有限公司 Accurate detecting method for cavity leakage of lithium-ion battery and device thereof
CN201876343U (en) * 2010-11-23 2011-06-22 天津力神电池股份有限公司 Lithium ion battery leakage detecting device
CN202453159U (en) * 2011-12-27 2012-09-26 力神迈尔斯动力电池系统有限公司 Detection device for air tightness of high-capacity lithium ion battery
CN202614481U (en) * 2012-02-21 2012-12-19 上海航天电源技术有限责任公司 Positive voltage leakage detection apparatus of lithium ion battery
CN105181250A (en) * 2015-08-10 2015-12-23 安徽普为智能科技有限责任公司 Safety detection method of lithium battery airtightness
CN105823607A (en) * 2016-03-14 2016-08-03 中航锂电(洛阳)有限公司 Airtightness detection apparatus of power supply module
CN205748838U (en) * 2016-07-06 2016-11-30 河北工业大学 A kind of detector for lithium cell seal property
CN106525999A (en) * 2016-09-27 2017-03-22 重庆渝久环保产业有限公司 Gas chromatographic detection method for gas
CN206134848U (en) * 2016-10-14 2017-04-26 中航锂电(洛阳)有限公司 Lithium ion battery module baling equipment
CN107727756A (en) * 2017-09-12 2018-02-23 东莞市迈科新能源有限公司 The gas-chromatography test device and method in situ of gas caused by inside lithium ion cell
CN207123455U (en) * 2017-09-21 2018-03-20 四川科伦药业股份有限公司 A kind of detection means being pressurized for infusion bag with leakage defect

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101034032A (en) * 2007-04-27 2007-09-12 天津力神电池股份有限公司 Accurate detecting method for cavity leakage of lithium-ion battery and device thereof
CN201876343U (en) * 2010-11-23 2011-06-22 天津力神电池股份有限公司 Lithium ion battery leakage detecting device
CN202453159U (en) * 2011-12-27 2012-09-26 力神迈尔斯动力电池系统有限公司 Detection device for air tightness of high-capacity lithium ion battery
CN202614481U (en) * 2012-02-21 2012-12-19 上海航天电源技术有限责任公司 Positive voltage leakage detection apparatus of lithium ion battery
CN105181250A (en) * 2015-08-10 2015-12-23 安徽普为智能科技有限责任公司 Safety detection method of lithium battery airtightness
CN105823607A (en) * 2016-03-14 2016-08-03 中航锂电(洛阳)有限公司 Airtightness detection apparatus of power supply module
CN205748838U (en) * 2016-07-06 2016-11-30 河北工业大学 A kind of detector for lithium cell seal property
CN106525999A (en) * 2016-09-27 2017-03-22 重庆渝久环保产业有限公司 Gas chromatographic detection method for gas
CN206134848U (en) * 2016-10-14 2017-04-26 中航锂电(洛阳)有限公司 Lithium ion battery module baling equipment
CN107727756A (en) * 2017-09-12 2018-02-23 东莞市迈科新能源有限公司 The gas-chromatography test device and method in situ of gas caused by inside lithium ion cell
CN207123455U (en) * 2017-09-21 2018-03-20 四川科伦药业股份有限公司 A kind of detection means being pressurized for infusion bag with leakage defect

Similar Documents

Publication Publication Date Title
CN104236826B (en) The device for detecting sealability and method of airbag product
CN202903434U (en) A detecting device
CN201965006U (en) Lithium ion battery differential pressure formula leak hunting device
KR20040065522A (en) Method for leak testing of electrochemical elements
CN101788372A (en) Gas tightness detection device
CN105629960B (en) A kind of vehicle control unit of electric vehicle model is in ring test system and method
CN106441744B (en) A kind of lithium ion square power battery leak testing device and its test leakage technique
JP2011003513A (en) Safety evaluation testing method and testing device for the same
CN110487488A (en) The device and method of full-automation detection fuel cell pile air-tightness
CN107340101A (en) A kind of sealing device gas tiny leakage evaluating apparatus and method
CN105987855B (en) The moisture measuring method of battery battery core
CN102706752A (en) On-line soft infusion bag heat-seal strength detection device and soft infusion bag production line
CN205352643U (en) Solenoid valve leak testing device
CN102680181B (en) Method and device for testing vehicle body airtightness and fatigue of railway vehicle
CN105355994B (en) A kind of safety valve degradation detecting method and detecting tool for lead-acid accumulator
CN109959488A (en) Energy storage battery electrode column sealing device for detecting performance and its detection method
CN206269982U (en) A kind of lithium ion square electrokinetic cell leak testing device
CN102706753B (en) On-line soft infusion bag heat-seal strength detection device and soft infusion bag production line
CN108692887A (en) A kind of device for detecting lithium ion battery airtightness
CN105891429A (en) Coal and gas outburst simulation device with repeated test function and test method
CN106154166A (en) The on-line measuring device of a kind of flexible packing lithium ion battery flatulence amount and detection method
CN205593692U (en) Battery apron check out test set
CN208751811U (en) Test device for air tightness
CN208239037U (en) A kind of valve seal device for detecting performance
CN209513167U (en) Energy storage battery electrode column sealing device for detecting performance

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination