CN208367118U - It is a kind of for detecting the device of diaphragm electrical property - Google Patents
It is a kind of for detecting the device of diaphragm electrical property Download PDFInfo
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- CN208367118U CN208367118U CN201820931144.2U CN201820931144U CN208367118U CN 208367118 U CN208367118 U CN 208367118U CN 201820931144 U CN201820931144 U CN 201820931144U CN 208367118 U CN208367118 U CN 208367118U
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- pressing plate
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- electrical property
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Abstract
The utility model discloses a kind of for detecting the device of diaphragm electrical property, including the first pressing plate and the second pressing plate, first pressing plate and the second pressing plate pre-determined distance, for accommodating diaphragm to be measured between first pressing plate and the second pressing plate, first pressing plate and the second pressing plate can move toward one another, first pressing plate and the second pressing plate are made of conductive material, and the first pressing plate is equipped with first terminal, and the second pressing plate is equipped with Second terminal；The utility model proposes for detecting the device of diaphragm electrical property, this device can be used in combination with spreader bar, during use, spreader bar can apply different pressure to the first pressing plate, when pressure reaches certain critical value, the gap of diaphragm and plate is infinitely small, can exclude influence of the air to experimental result, obtains the exact numerical that test needs.
Description
Technical field
The utility model relates to battery technology fields more particularly to a kind of for detecting the device of diaphragm electrical property.
Background technique
Lithium ion battery is a kind of secondary cell, is widely used in the life such as mobile phone, computer, mobile power source, electric car
Every field, lithium ion battery is mainly made of positive electrode, negative electrode material, diaphragm, electrolyte and shell, wherein positive material
Material and negative electrode material are by septum barrier, and diaphragm is made of the insulating materials with micropore, its presence has blocked positive and negative
The conduction of pole directly contacted with electronics, but allow passing through for lithium ion, therefore whether diaphragm has uniform micropore and thickness
There is important influence to the performance of diaphragm.
The defect of burr present in the manufacturing process of battery, dust and diaphragm itself, if not in manufacturing process
In detected, diaphragm may be caused to lose insulation performance in the subsequent use process, cause short circuit of positive and negative anodes etc. great
Problem, and excessive detection voltage can cause certain damage to diaphragm, therefore the electrical property of diaphragm is detected and simulated
Diaphragm injury experiment that may be present is just necessary in core；Currently, the detection to diaphragm also rests on diaphragm appearance, film
Volume appearance, thickness deviation, width difference, curvature, tensile strength, extension at break degree, ionic conductivity, air permeability, aperture are equal
Even property, closed pore temperature etc., for simulation diaphragm inside core different conditions and various sizes of external foreign matter to every
The tooling that film electrical property influences is fewer.
Utility model content
To solve technical problem present in background technique, the utility model proposes a kind of for detecting diaphragm electrical property
Device.
The utility model proposes it is a kind of for detecting the device of diaphragm electrical property, including the first pressing plate and the second pressing plate；
First pressing plate and the second pressing plate pre-determined distance, for accommodating diaphragm to be measured between the first pressing plate and the second pressing plate, the
One pressing plate and the second pressing plate can move toward one another, and the first pressing plate and the second pressing plate are made of conductive material；
First pressing plate is equipped with first terminal, and the second pressing plate is equipped with Second terminal.
Preferably, the first pressing plate close to the second pressing plate side area less than the second pressing plate close to the face of the first pressing plate side
Product.
Preferably, the first pressing plate and the second pressing plate opposite side are smoothly arranged.
Preferably, the first pressing plate and the second pressing plate opposite side are formed with concave-convex particle.
Preferably, concave-convex granular size reaches nanoscale.
In the utility model, the device for detecting diaphragm electrical property proposed can be used in combination with spreader bar, make
During, spreader bar can apply different pressures to the first pressing plate, when pressure reaches certain critical value, diaphragm and plate
Gap is infinitely small, can exclude influence of the air to experimental result, obtains the exact numerical that test needs.If the first pressing plate and
Second clamp surface is smooth, can be tested with the defect of analog detection diaphragm and aperture, if the first pressing plate and the second clamp surface
With concave-convex particle, state of the diaphragm in core can be simulated, experimental data is made to be more nearly theoretical case.
Detailed description of the invention
Fig. 1 be the utility model proposes it is a kind of for detecting the structural schematic diagram of the device of diaphragm electrical property.
Specific embodiment
As shown in FIG. 1, FIG. 1 is the utility model proposes it is a kind of for detecting the structural representation of the device of diaphragm electrical property
Figure.
Referring to Fig.1, the utility model proposes it is a kind of for detecting the device of diaphragm electrical property, including 1 He of the first pressing plate
Second pressing plate 2；
First pressing plate 1 and the second pressure are cube structure, and the first cube and the second cube are arranged in parallel, the first pressure
2 pre-determined distance of plate 1 and the second pressing plate, for accommodating diaphragm to be measured between the first pressing plate 1 and the second pressing plate 2, the first pressing plate 1 and the
The distance of two pressing plates 2 is adjustable, and the first pressing plate 1 and the second pressing plate 2 are made of conductive material；
First pressing plate 1 is equipped with first terminal 3, and the second pressing plate 2 is equipped with Second terminal 4；First terminal 3 and Second terminal
4 are respectively used to connect with extraneous short-circuit instrument.
The device for detecting diaphragm electrical property that the present embodiment proposes can be used in combination with spreader bar, in the process used
In, spreader bar can apply different pressures to the first pressing plate, and when pressure reaches certain critical value, the gap of diaphragm and plate is unlimited
It is small, influence of the air to experimental result can be excluded, the exact numerical that test needs is obtained.
In the present embodiment, the first pressing plate 1 close to 2 side of the second pressing plate area less than the second pressing plate 2 close to the first pressing plate 1
The area of side avoids the first pressing plate 1 and the contact of the second pressing plate 2 in detection process from causing short circuit phenomenon.
First pressing plate 1 and 2 opposite side surface of the second pressing plate can be smoothly arranged, can with the defect of analog detection diaphragm and
Aperture experiment.
First pressing plate 1 and 2 opposite side of the second pressing plate also could be formed with concave-convex particle, and concave-convex granular size reaches nanometer
Grade, can simulate state of the diaphragm in core, experimental data is made to be more nearly theoretical case.
The first pressing plate and the second pressing plate in the present embodiment is mountable in the executing agency of spreader bar, spreader bar driving the
2 relative motion of one pressing plate 1 and the second pressing plate, it is different to obtain to change the pressure between the first pressing plate 1 and the second pressing plate 2
Experimental data.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of for detecting the device of diaphragm electrical property, which is characterized in that including the first pressing plate (1) and the second pressing plate (2)；
First pressing plate (1) and the second pressing plate (2) pre-determined distance, it is to be measured for accommodating between the first pressing plate (1) and the second pressing plate (2)
Diaphragm, the first pressing plate (1) and the second pressing plate (2) can move toward one another, and the first pressing plate (1) and the second pressing plate (2) use conductive material
It is made；
First pressing plate (1) is equipped with first terminal (3), and the second pressing plate (2) is equipped with Second terminal (4).
2. according to claim 1 for detecting the device of diaphragm electrical property, which is characterized in that the first pressing plate (1) is close
The area of the second pressing plate (2) side is less than the second pressing plate (2) close to the area of the first pressing plate (1) side.
3. according to claim 1 for detecting the device of diaphragm electrical property, which is characterized in that the first pressing plate (1) and the
Two pressing plates (2) opposite side is smoothly arranged.
4. according to claim 1 for detecting the device of diaphragm electrical property, which is characterized in that the first pressing plate (1) and the
Two pressing plates (2) opposite side is formed with concave-convex particle.
5. according to claim 4 for detecting the device of diaphragm electrical property, which is characterized in that concave-convex granular size reaches
Nanoscale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820931144.2U CN208367118U (en) | 2018-06-15 | 2018-06-15 | It is a kind of for detecting the device of diaphragm electrical property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820931144.2U CN208367118U (en) | 2018-06-15 | 2018-06-15 | It is a kind of for detecting the device of diaphragm electrical property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208367118U true CN208367118U (en) | 2019-01-11 |
Family
ID=64929108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820931144.2U Active CN208367118U (en) | 2018-06-15 | 2018-06-15 | It is a kind of for detecting the device of diaphragm electrical property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208367118U (en) |
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2018
- 2018-06-15 CN CN201820931144.2U patent/CN208367118U/en active Active
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