CN109932313A - A kind of test method of quick judgement oil system positive/negative pole piece adhesive property - Google Patents
A kind of test method of quick judgement oil system positive/negative pole piece adhesive property Download PDFInfo
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- CN109932313A CN109932313A CN201811639115.XA CN201811639115A CN109932313A CN 109932313 A CN109932313 A CN 109932313A CN 201811639115 A CN201811639115 A CN 201811639115A CN 109932313 A CN109932313 A CN 109932313A
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- pole piece
- negative pole
- positive
- adhesive property
- peeling
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Abstract
The present invention relates to technical field of lithium ion, to solve the problems, such as that the adhesive property test technology between pole coating and foil is complicated for operation, time-consuming, it provides one kind and quickly judges that oil is the test method of positive/negative pole piece adhesive property, formation testing system positive/negative pole piece to be measured is immersed in the ethanol solution that volume fraction is 50 ~ 90%, the time of origin for recording formation testing system positive/negative pole piece peeling to be measured or peeling judges formation testing system positive/negative pole piece adhesive property to be measured according to the time of origin length of peeling or peeling.The present invention selects the aqueous solution of common alcohol, can quickly and easily judge the superiority and inferiority of fuel-displaced system's positive/negative pole piece adhesive property in a short time, easy to operate efficient, practical.
Description
Technical field
The present invention relates to technical field of lithium ion, more particularly to one kind quickly to judge that oil system positive/negative pole piece is bonded
The test method of performance.
Background technique
In order to test pole piece adhesive property, the test method generally taken is adhesive tape peel test or pole piece is immersed in electricity
It solves in liquid, is placed in progress long-time standing under room temperature or hot environment, then observes the bonding situation of coating and foil.Adhesive tape
Peel test can quickly judge the adhesive strength of coating and foil after coating, but can not judge to apply after electrolyte impregnates
Adhesive property between layer and foil, electrolyte Soak Test is complicated for operation, time-consuming, needs pole piece and electrolyte being encapsulated into aluminium
In plastic-film packing bag, room temperature or quiescence in high temperature time a few hours.
Disclosed in Chinese patent literature " a method of the bonding agent adhesive property for sheet substrate is tested ", it is public
Announcement number is CN 105067518A, which ensure that by the certain thickness sheet substrate being bonded in aluminium alloy loading blocks
Test specimen is not in bending deformation in test loading procedure, and the load acted on bonding plane keeps constant constant, Neng Gouyou
Certain bonding agent of the test of effect is evaluated relative to the adhesive property between sheet substrate, and to it.But the invention is tested
Complex steps can not achieve the quick judgement of the adhesive strength of pole coating and foil.
Summary of the invention
The present invention in order to overcome the above-mentioned problems of the prior art of tradition, provide a kind of quickly judgement oil system just/
The test method of cathode pole piece adhesive property selects the aqueous solution of common alcohol, can quickly and easily judge in a short time
The superiority and inferiority of fuel-displaced system's positive/negative pole piece adhesive property.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of test method of quick judgement oil system positive/negative pole piece adhesive property immerses formation testing system positive/negative pole piece to be measured
In the ethanol solution that volume fraction is 50 ~ 90% (pole piece is completely covered in liquid level), formation testing system positive/negative pole piece peeling to be measured is recorded
Or the time of origin of peeling, formation testing system positive/negative pole to be measured is judged according to the time of origin length of peeling or peeling
Piece adhesive property.The purity suggested range of the aqueous solution of alcohol is 50 ~ 90%, and purity is lower, makes pole piece that peeling or removing occur
Ability is stronger, can select purity according to actual needs.
Wherein, peeling is generated in 3min or peeling, the adhesive property of formation testing system positive/negative pole piece to be measured are poor；
Peeling is generated in 3min ~ 10min or peeling, the adhesive property of formation testing system positive/negative pole piece to be measured are good；
10min or more generates peeling or peeling, the adhesive property of formation testing system positive/negative pole piece to be measured are preferable.
Preferably, the time that peeling or peeling occurs is longer, the adhesive property of formation testing system positive/negative pole piece to be measured
Better.
Preferably, the oil system positive/negative pole piece is to use N-Methyl pyrrolidone molten as dispersing in homogenization process
The positive/negative pole piece of agent.In contrast, water is used to be known as water system pole piece as dispersion solvent.
Preferably, adhesive strength of the adhesive property between pole coating and foil.Adhesive strength refers to unit
The bonding force born on bonding plane, adhesive strength mainly include bonding strong between the cohesive strength of glue-line and glue-line and sticky surface
Degree.
Preferably, test temperature control is at -10 ~ 45 DEG C.
It therefore, can be in a short time the invention has the following beneficial effects: the aqueous solution that the present invention selects common alcohol
Quickly and easily judge the superiority and inferiority of fuel-displaced system's positive/negative pole piece adhesive property, it is easy to operate efficient, it is practical.
Specific embodiment
Below by specific embodiment, the technical solutions of the present invention will be further described.
In the present invention, if not refering in particular to, all devices and raw material is commercially available or the industry is common are following
Method in embodiment is unless otherwise instructed conventional method in that art.
Embodiment 1
(1) ethanol solution that configuration volume fraction is 80%；
(2) formation testing system to be measured anode pole piece is immersed in ethanol solution, controlled at -10 DEG C；
(3) formation testing system positive/negative pole piece to be measured is impregnating peeling in 3min, then the oil system anode pole piece adhesive property is poor.
Embodiment 2
(1) ethanol solution that configuration volume fraction is 90%；
(2) formation testing system to be measured anode pole piece is immersed in ethanol solution, controlled at 25 DEG C；
(3) formation testing system to be measured anode pole piece is impregnating peeling in 8min, then the oil system anode pole piece adhesive property is good.
Embodiment 3
(1) ethanol solution that configuration volume fraction is 50%；
(2) formation testing system to be measured anode pole piece is immersed in ethanol solution, controlled at 45 DEG C；
(3) formation testing system to be measured anode pole piece impregnate 10min in without skin effect phenomenon, then the oil system anode pole piece adhesive property compared with
It is good.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, and is not surpassing
There are also other variations and modifications under the premise of technical solution documented by claim out.
Claims (5)
1. the test method that a kind of quickly judgement oil is positive/negative pole piece adhesive property, which is characterized in that by formation testing system to be measured
Positive/negative pole piece immerses in the ethanol solution that volume fraction is 50 ~ 90%, records formation testing system positive/negative pole piece peeling to be measured or stripping
Time of origin from phenomenon judges that formation testing system positive/negative pole piece to be measured is viscous according to the time of origin length of peeling or peeling
Connect performance.
2. a kind of quickly judgement oil according to claim 1 is the test method of positive/negative pole piece adhesive property, feature
It is, the time that peeling or peeling occurs is longer, and the adhesive property of formation testing system positive/negative pole piece to be measured is better.
3. a kind of quickly judgement oil according to claim 1 is the test method of positive/negative pole piece adhesive property, feature
It is, the oil system positive/negative pole piece is to use positive/negative pole of the N-Methyl pyrrolidone as dispersion solvent in homogenization process
Piece.
4. a kind of quickly judgement oil according to claim 1 is the test method of positive/negative pole piece adhesive property, feature
It is, adhesive strength of the adhesive property between pole coating and foil.
5. a kind of quickly judgement oil according to claim 1 is the test method of positive/negative pole piece adhesive property, feature
It is, test temperature is controlled at -10 ~ 45 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639115.XA CN109932313A (en) | 2018-12-29 | 2018-12-29 | A kind of test method of quick judgement oil system positive/negative pole piece adhesive property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639115.XA CN109932313A (en) | 2018-12-29 | 2018-12-29 | A kind of test method of quick judgement oil system positive/negative pole piece adhesive property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109932313A true CN109932313A (en) | 2019-06-25 |
Family
ID=66984924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811639115.XA Pending CN109932313A (en) | 2018-12-29 | 2018-12-29 | A kind of test method of quick judgement oil system positive/negative pole piece adhesive property |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146364A (en) * | 2019-06-27 | 2019-08-20 | 华北理工大学 | A kind of evaluation method of metal hot dipping fluxing agent |
| CN112382797A (en) * | 2020-07-17 | 2021-02-19 | 万向一二三股份公司 | Method for laminating sheets |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267725A (en) * | 2013-05-03 | 2013-08-28 | 张立新 | Water environment corrosion resistance solvent-free polymer coating service lifer prediction method |
| CN104977254A (en) * | 2015-07-20 | 2015-10-14 | 深圳市华星光电技术有限公司 | Method for comparing adhesive force of composite membrane and determining qualified products |
| CN108226031A (en) * | 2017-12-29 | 2018-06-29 | 国联汽车动力电池研究院有限责任公司 | A kind of detection method of electrodes of lithium-ion batteries adhesive force |
-
2018
- 2018-12-29 CN CN201811639115.XA patent/CN109932313A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267725A (en) * | 2013-05-03 | 2013-08-28 | 张立新 | Water environment corrosion resistance solvent-free polymer coating service lifer prediction method |
| CN104977254A (en) * | 2015-07-20 | 2015-10-14 | 深圳市华星光电技术有限公司 | Method for comparing adhesive force of composite membrane and determining qualified products |
| CN108226031A (en) * | 2017-12-29 | 2018-06-29 | 国联汽车动力电池研究院有限责任公司 | A kind of detection method of electrodes of lithium-ion batteries adhesive force |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146364A (en) * | 2019-06-27 | 2019-08-20 | 华北理工大学 | A kind of evaluation method of metal hot dipping fluxing agent |
| CN110146364B (en) * | 2019-06-27 | 2022-01-21 | 华北理工大学 | Evaluation method of plating assistant agent for metal hot dipping |
| CN112382797A (en) * | 2020-07-17 | 2021-02-19 | 万向一二三股份公司 | Method for laminating sheets |
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Application publication date: 20190625 |
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| RJ01 | Rejection of invention patent application after publication |