CN104568324A - Detecting method for flexible package battery packaging effect - Google Patents

Detecting method for flexible package battery packaging effect Download PDF

Info

Publication number
CN104568324A
CN104568324A CN201410798413.9A CN201410798413A CN104568324A CN 104568324 A CN104568324 A CN 104568324A CN 201410798413 A CN201410798413 A CN 201410798413A CN 104568324 A CN104568324 A CN 104568324A
Authority
CN
China
Prior art keywords
battery
plastic film
aluminum plastic
packaging effect
detection method
Prior art date
Application number
CN201410798413.9A
Other languages
Chinese (zh)
Other versions
CN104568324B (en
Inventor
关成善
宗继月
张敬捧
朱波青
Original Assignee
山东神工海特电子科技有限公司
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 山东神工海特电子科技有限公司 filed Critical 山东神工海特电子科技有限公司
Priority to CN201410798413.9A priority Critical patent/CN104568324B/en
Publication of CN104568324A publication Critical patent/CN104568324A/en
Application granted granted Critical
Publication of CN104568324B publication Critical patent/CN104568324B/en

Links

Abstract

The invention discloses a detecting method for a flexible package battery packaging effect, and provides a detecting method for the flexible package battery packaging effect. The detecting method adopting the technical scheme comprises the following steps: (1) taking a battery cell welded with a tab, placing the battery cell in an aluminum plastic film for packaging the battery cell, and reserving an air bag in the aluminum plastic film; (2) setting parameters of a top side sealing machine, packaging the battery cell, and not packaging one side of the air bag as a liquid injection hole; (3) performing insulation detection on the heat-sealed battery, if the impedance is higher than 200 Momega, then going to the next step, or taking smaller- top side sealing parameters; (4) injecting an electrolyte solution, and sealing the aluminum plastic film; (5) forming the battery according to the actual production technology; (6) placing the formed battery in a cold pressing plate of a cold-hot pressing machine to be pressed, and if the liquid is leaked, then taking larger top side sealing parameters. The detecting method is to simulate the link in which the aluminum plastic film is expanded most easily in the battery manufacturing process in advance, and detect the aluminum plastic film packaging effect; in the simulation process, the battery core is made of an inferior pole shoe or an unqualified pole shoe, so that the cost is low, and the operation is convenient and simple.

Description

A kind of detection method of flexible-packed battery packaging effect

Technical field

The present invention relates to technical field of lithium-ion battery, particularly relate to a kind of detection method of flexible-packed battery packaging effect.

Background technology

Lithium ion soft-package battery refers to the battery packing lithium-ion electric core with aluminum plastic film, needs to encapsulate the aluminum plastic film of packaging in production run.The encapsulation of aluminum plastic film utilizes end socket high-temperature heating aluminum plastic film, makes its PP layer be fused into fluidised form, then with end socket pressure, the PP layer of two-layer aluminum plastic film fused, be just bonded together after cooling, clump and play sealing effectiveness.

General packaging effect can be detected by equipment such as puller systems.Some battery stands intact after encapsulation, but battery is when injecting electrolytic solution and changing into, a certain amount of gas can be produced, if now adopt pressurization chemical synthesis technology, and produce gas flow larger time, just may, at this pressure by aluminum plastic film distending, particularly at lug place distending, leakage and battery be caused to be scrapped.Therefore a kind of method studying effective detection flexible-packed battery packaging effect is needed.

China Patent Publication No. CN 103424227A, publication date on Dec 4th, 2013, discloses a kind of control method of aluminum plastic film soft-package battery heat seal quality.First produce simulated battery, then root adopts extruding test and Insulation test to judge heat-sealing effect, thus adjustment hot sealing process parameter.Its limitation be the squeeze test that makes of extruder can not concora crush to whole battery surface, and do not simulate battery change into gas generation process, and the gas that this process produces pressurization change into or cold-hot pressure effect under be the one of the main reasons causing battery leakage by aluminum plastic film distending.

Summary of the invention

The invention provides a kind of detection method of flexible-packed battery packaging effect, by doing insulativity test to the battery encapsulated, situation when simulated battery pressurizes after changing into aerogenesis, according to test result adjusting process parameter in advance, ensureing actual production quality.

For achieving the above object, the present invention is by the following technical solutions:

A detection method for flexible-packed battery packaging effect, described detection method mainly comprises following steps:

(1) get the battery core that has been welded lug, put well in the aluminum plastic film of packaging battery core, aluminum plastic film leaves airbag;

(2) set the parameter of top side seal machine, encapsulate battery core, airbag side does not encapsulate as liquid injection port;

(3) insulativity detection is carried out to the battery sealed, if impedance is greater than 200M Ω, then enter next step, otherwise turn closedtop parameter down;

(4) inject electrolytic solution, aluminum plastic film is sealed;

(5) battery is changed into by production actual process;

(6) exert pressure under the battery after changing into being placed in the cold pressing plate of cold and hot press, observe whether leakage and leakage position, if leakage, tune up top side seal parameter.

According to described detection method, battery is not toasted before step (4) fluid injection; When sealing aluminum plastic film, not to battery vacuum-pumping, to ensure that the inside has gas to retain.

According to described detection method, time in step (5) to Battery formation, pressurization is not taked to change into.

According to described detection method, be 1500-1800kg to battery applied pressure in step (6).

According to described detection method, the amplitude of the adjustment parameter in step (3) and step (6): the amplitude of adjustment temperature is 5 DEG C of integral multiples, adjustment pressure is 0.05Mpa integral multiple.

The invention has the beneficial effects as follows: by the link of the easiest distending of aluminum plastic film in simulated battery making in advance, inspection aluminum plastic film packaging effect, adjusting process parameter, guarantees the quality of production in advance.The battery core that simulation process adopts, can make of inferior pole piece or bad pole piece, with low cost, and simply easy to operate.

Embodiment

A detection method for flexible-packed battery packaging effect, described detection method mainly comprises following steps.

(1) get the battery core that has been welded lug, put well in the aluminum plastic film of packaging battery core, aluminum plastic film leaves airbag.

(2) set the parameter of top side seal machine, encapsulate battery core, airbag side does not encapsulate as liquid injection port.

(3) insulativity detection is carried out to the battery sealed, if impedance is greater than 200M Ω, then enter next step, otherwise turn closedtop parameter down.Battery after top side seal, if heat-sealing pressure is excessive or heat-sealing temperature is too high, easily contacts lug with aluminum plastic film aluminium lamination, thus to cause between positive and negative lug short circuit or lug and aluminum plastic film short circuit.Therefore, impedance does not reach requirement, needs hot-blast pressure or heat-sealing temperature to turn down.

(4) inject appropriate electrolytic solution, aluminum plastic film is sealed.Battery is not toasted before this step, to ensure gas production rate when changing into.

(5) battery is changed into by production actual process.Change into actual production technique, for ensureing the gas production rate that simulation is actual.

(6) exert pressure with certain pressure under the battery after changing into being placed in the cold pressing plate of cold and hot press.Observe whether leakage and leakage position, if leakage, tune up top side seal parameter.

When sealing aluminum plastic film in described step (4), not to battery vacuum-pumping, to ensure that the inside has gas to retain.For ensureing to simulate the more situation of Battery formation aerogenesis, do not vacuumize during the encapsulation of this step.

Time in described step (5) to Battery formation, pressurization is not taked to change into.

Be [b1] to battery applied pressure in described step (6).When this pressure is actual production, pressurization changes into and pressure limit during cold-hot pressure.

The amplitude of adjustment parameter to be temperature the be integral multiple of 5 DEG C in described step (3) and step (6), pressure is the integral multiple of 0.05Mpa.

Embodiment

Below in conjunction with specific embodiment, the content of the present invention of explanation clearly, but enforcement of the present invention is not limited to following embodiment.

Embodiment 1

Get one and welded lug by the ready-made battery core of inferior pole piece, put well in the aluminum plastic film of packaging battery core, aluminum plastic film leaves the wide airbag of 60mm.Set the parameter of top side seal machine, closedtop temperature 170 DEG C, side seal temperature 170 DEG C, closedtop pressure 0.4Mpa, side seal pressure 0.4Mpa, closedtop time 3S, side seal time 3S.Encapsulate battery core, airbag side does not encapsulate as liquid injection port.Insulativity detection is carried out to the battery sealed, obtains impedance and be greater than 200M Ω.Inject 100g electrolytic solution, to aluminum plastic film sealing, do not vacuumize during sealing.Battery is changed into by production actual process, does not pressurize when changing into.Under battery after changing into is placed in the cold pressing plate of cold and hot press, adjustment force value is 1800kg, and then pressing plate declines and exerts pressure, and observing battery has a small amount of leakage at negative lug place.Explanation package quality is defective, is closedtop temperature 175 DEG C by parameter adjustment, closedtop pressure 0.45Mpa, closedtop time 4S, and after technical arrangement plan, again do this experiment, package quality is qualified.

Embodiment 2

The experimentation of embodiment 2 is identical with embodiment 1 with result, and difference is, during adjustment parameter, is closedtop temperature 180 DEG C by parameter adjustment, closedtop pressure 0.45Mpa, closedtop time 3S, side seal parameter constant.After parameter change, again do this experiment, package quality meets the demands.

Embodiment 3

The experimentation of embodiment 3 is identical with embodiment 1 with result, and difference is, during adjustment parameter, is closedtop temperature 170 DEG C by parameter adjustment, closedtop pressure 0.5Mpa, closedtop time 4S, side seal parameter constant.After parameter change, when battery is exerted pressure under being placed in the cold pressing plate of cold and hot press, the distending leakage of battery pole ear place.Package quality is defective, illustrates that this optimum configurations is less than normal.

Embodiment 4

The experimentation of embodiment 4 is identical with embodiment 1 with result, and difference is, during adjustment parameter, is closedtop temperature 185 DEG C by parameter adjustment, closedtop pressure 0.5Mpa, closedtop time 3S, side seal parameter constant.When insulativity detection is carried out to packaged battery, obtain impedance and be less than 200M Ω.Illustrate that encapsulation parameter is arranged excessive.

Embodiment 5

The experimentation of embodiment 5 is identical with embodiment 1 with result, and difference is, during adjustment parameter, is closedtop temperature 175 DEG C by parameter adjustment, closedtop pressure 0.55Mpa, closedtop time 3S, side seal parameter constant.After parameter change, package quality meets the demands.

Claims (5)

1. a detection method for flexible-packed battery packaging effect, is characterized in that, described detection method mainly comprises following steps:
(1) get the battery core that has been welded lug, put well in the aluminum plastic film of packaging battery core, aluminum plastic film leaves airbag;
(2) parameter setting top side seal machine encapsulates battery core, closedtop temperature 170 DEG C, side seal temperature 170 DEG C, closedtop pressure 0.4Mpa, side seal pressure 0.4Mpa, closedtop time 3S, side seal time 3S, and airbag side does not encapsulate as liquid injection port;
(3) insulativity detection is carried out to the battery sealed, if impedance is greater than 200M Ω, then enter next step, otherwise turn closedtop parameter down;
(4) inject electrolytic solution, aluminum plastic film is sealed;
(5) battery is changed into by production actual process;
(6) exert pressure under the battery after changing into being placed in the cold pressing plate of cold and hot press, observe whether leakage and leakage position, if leakage, tune up top side seal parameter.
2. the detection method of flexible-packed battery packaging effect according to claim 1, is characterized in that, does not toast before step (4) fluid injection to battery; When sealing aluminum plastic film, not to battery vacuum-pumping, to ensure that the inside has gas to retain.
3. the detection method of flexible-packed battery packaging effect according to claim 1, is characterized in that, time in step (5) to Battery formation, does not take pressurization to change into.
4. the detection method of flexible-packed battery packaging effect according to claim 1, is characterized in that, is 1500-1800kg to battery applied pressure in step (6).
5. the detection method of flexible-packed battery packaging effect according to claim 1, is characterized in that, the amplitude of the adjustment parameter in step (3) and step (6): the amplitude of adjustment temperature is 5 DEG C of integral multiples, and adjustment pressure is 0.05Mpa integral multiple.
CN201410798413.9A 2014-12-20 2014-12-20 A kind of detection method of flexible-packed battery packaging effect CN104568324B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410798413.9A CN104568324B (en) 2014-12-20 2014-12-20 A kind of detection method of flexible-packed battery packaging effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410798413.9A CN104568324B (en) 2014-12-20 2014-12-20 A kind of detection method of flexible-packed battery packaging effect

Publications (2)

Publication Number Publication Date
CN104568324A true CN104568324A (en) 2015-04-29
CN104568324B CN104568324B (en) 2017-03-15

Family

ID=53084905

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410798413.9A CN104568324B (en) 2014-12-20 2014-12-20 A kind of detection method of flexible-packed battery packaging effect

Country Status (1)

Country Link
CN (1) CN104568324B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106711512A (en) * 2017-02-21 2017-05-24 山东玉皇新能源科技有限公司 Method for producing soft pack batteries based on measurable battery internal temperature device
CN107631844A (en) * 2016-07-18 2018-01-26 万向二三股份公司 A kind of method for conducting leak test of soft package lithium battery
CN107946652A (en) * 2017-11-07 2018-04-20 江苏金坛绿能新能源科技有限公司 A kind of flexible-packed battery aluminum plastic film encapsulation performance detection method
CN107966400A (en) * 2017-11-29 2018-04-27 天津力神电池股份有限公司 The detection method of aluminum plastic film packaging effect
CN108615944A (en) * 2016-12-10 2018-10-02 深圳格林德能源有限公司 A kind of polymer Li-ion battery aluminum plastic film package quality judgement technique

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU847544A1 (en) * 1979-04-04 1981-07-15 Предприятие П/Я А-3325 Device for checking electric parameters of printed-circuit boards
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
CN201984128U (en) * 2011-01-26 2011-09-21 深圳市东方华联科技有限公司 Soft package lithium ion battery insulation test device
WO2011158878A1 (en) * 2010-06-17 2011-12-22 日産自動車株式会社 Air tightness test method and air tightness test device for sealed batteries
CN102914409A (en) * 2012-08-14 2013-02-06 昆山兴能能源科技有限公司 Method for testing air tightness quality of flexibly packaged lithium ion battery
CN103424227A (en) * 2012-05-22 2013-12-04 万向电动汽车有限公司 Method for controlling heat sealing quality of aluminum plastic film soft package battery

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU847544A1 (en) * 1979-04-04 1981-07-15 Предприятие П/Я А-3325 Device for checking electric parameters of printed-circuit boards
WO2011158878A1 (en) * 2010-06-17 2011-12-22 日産自動車株式会社 Air tightness test method and air tightness test device for sealed batteries
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
CN201984128U (en) * 2011-01-26 2011-09-21 深圳市东方华联科技有限公司 Soft package lithium ion battery insulation test device
CN103424227A (en) * 2012-05-22 2013-12-04 万向电动汽车有限公司 Method for controlling heat sealing quality of aluminum plastic film soft package battery
CN102914409A (en) * 2012-08-14 2013-02-06 昆山兴能能源科技有限公司 Method for testing air tightness quality of flexibly packaged lithium ion battery

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张敬捧 等: ""扣式锂电池新型测试模块的应用"", 《电池》 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107631844A (en) * 2016-07-18 2018-01-26 万向二三股份公司 A kind of method for conducting leak test of soft package lithium battery
CN108615944A (en) * 2016-12-10 2018-10-02 深圳格林德能源有限公司 A kind of polymer Li-ion battery aluminum plastic film package quality judgement technique
CN106711512A (en) * 2017-02-21 2017-05-24 山东玉皇新能源科技有限公司 Method for producing soft pack batteries based on measurable battery internal temperature device
CN106711512B (en) * 2017-02-21 2019-03-15 山东玉皇新能源科技有限公司 Soft-package battery production method based on measurable internal temperature of battery device
CN107946652A (en) * 2017-11-07 2018-04-20 江苏金坛绿能新能源科技有限公司 A kind of flexible-packed battery aluminum plastic film encapsulation performance detection method
CN107966400A (en) * 2017-11-29 2018-04-27 天津力神电池股份有限公司 The detection method of aluminum plastic film packaging effect
CN107966400B (en) * 2017-11-29 2020-05-19 天津力神电池股份有限公司 Method for detecting packaging effect of aluminum plastic film

Also Published As

Publication number Publication date
CN104568324B (en) 2017-03-15

Similar Documents

Publication Publication Date Title
CN104037456B (en) The quick chemical synthesis technology of ferric phosphate lithium cell
US9977090B2 (en) Insulation failure inspecting apparatus, insulation failure inspecting method using same, and method for manufacturing electrochemical cell
CN103515653A (en) Formation method of soft-packed lithium ion battery
CN104282965B (en) A kind of lithium ion battery self-heating apparatus and method
CN104596862B (en) Creep of rock seepage coupling test system
KR101691754B1 (en) Battery manufacturing method
JPWO2013191125A1 (en) Film outer battery
CN105181470A (en) Apparatus for testing bursting strength of packaging carton
CN103048376A (en) Method for detecting corrosion condition inside lithium ion battery with flexible package
JP5779291B1 (en) Composite heat seal structure adaptable to overlapping step
CN106098837A (en) Photovoltaic module production technology
JP2013191840A (en) Chip crimping device and its method
CN106876792B (en) A kind of chemical synthesizing method of soft bag lithium ionic cell electrolyte wetting method, soft bag lithium ionic cell
WO2010105565A1 (en) Method for manufacturing lithium ion battery and package bag of lithium ion battery
JP5918840B2 (en) Lithium battery
CN105762430A (en) Lithium iron phosphate power battery formation method
CN101552358A (en) Production method and encapsulating shell of lithium ion battery
CN106585052A (en) Laminating technology of solar cell module
CN104485490A (en) On-line flexible package polymer lithium battery pack monitoring system and monitoring method thereof
CN206192597U (en) Waterproof test device of IPX9
WO2011154114A3 (en) Method for producing a bilipid layer in a microstructure
CN103258977A (en) Method for preparing gel diaphragm cell by in-situ polymerization and prepared battery
CN105591160A (en) Method for verifying package reliability of soft-package battery
CN104129536A (en) Gas pressure testing device for a gas compartment portion of a bag with a gas compartment
CN102394316A (en) Packaging method of lithium ion battery, and lithium ion battery

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20170209

Address after: Five road 277800 Shandong city of Zaozhuang province Zaozhuang high tech Zone on the west side.

Applicant after: Shandong Fine Electronic Technology Co., Ltd.

Address before: High tech Zone 277800 Shandong city of Zaozhuang province Thailand five Road Industrial Park, Fuyuan Electronics Group.

Applicant before: Shandong Shengong Haite Electronic Technology Co., Ltd.

TA01 Transfer of patent application right
GR01 Patent grant
C14 Grant of patent or utility model