CN206774612U - Efficient collapsible lithium battery diaphragm - Google Patents
Efficient collapsible lithium battery diaphragm Download PDFInfo
- Publication number
- CN206774612U CN206774612U CN201720467195.XU CN201720467195U CN206774612U CN 206774612 U CN206774612 U CN 206774612U CN 201720467195 U CN201720467195 U CN 201720467195U CN 206774612 U CN206774612 U CN 206774612U
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- China
- Prior art keywords
- folding line
- septum body
- lithium battery
- battery diaphragm
- folding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model belongs to lithium battery manufacturing technology field, more particularly to efficient collapsible lithium battery diaphragm, including septum body, the one side of the septum body is provided with some parallel and equally distributed first folding line, first folding line is made up of some folding line grooves along linear interval distribution, the position of the another side of the septum body and the line correspondences where first folding line is provided with the second folding line, second folding line is made up of some folding line grooves along linear interval distribution, and the folding line groove of first folding line is not overlapping with the folding line groove of the second folding line.By setting the first folding line and the second folding line respectively on the two sides of septum body, to facilitate septum body to be folded as needed along the first folding line or the second folding line in any one side, the folding efficiency of septum body is effectively improved, so as to improve the production efficiency of lithium battery.Simultaneously because the first folding line and the second folding line form by the folding line groove of Disjunct distribution, to reduce influence of the folding line to septum body intensity.
Description
Technical field
The utility model belongs to lithium battery manufacturing technology field, and in particular to efficient collapsible lithium battery diaphragm.
Background technology
Battery diaphragm is used between the positive and negative electrode of battery, plays fixed electrolyte, ensures that electric current is passed through and prevented
A variety of important function such as contact short circuit between positive and negative electrode.
Common lithium ion battery has coiled battery and laminated battery plate, and the molding mode of lithium battery is different, battery diaphragm
Structure also differs used by film.For coiled battery, battery diaphragm also uses takeup type knot with positive plate and negative plate
Structure；For laminated battery plate, the general battery diaphragm folded using bag-type battery barrier film or "the" shape, examined for process costs
Consider, the battery diaphragm that "the" shape folds is more common relative to bag-type battery barrier film.
In the prior art exist to battery diaphragm one side first manufacture folding line technique, with facilitate along folding line position to every
Film is folded, and to improve production efficiency, but only facilitates barrier film to fold in one direction in the folding line that one side is set, and into bar
Folding line into barrier film weakness, easily cause barrier film breakage.
Utility model content
The purpose of this utility model is：In view of the shortcomings of the prior art, there is provided a kind of efficiently collapsible lithium battery diaphragm,
To improve the production efficiency of manufacture lithium ion battery.
To achieve these goals, the utility model adopts the following technical scheme that：
Efficient collapsible lithium battery diaphragm, including septum body, the one side of the septum body be provided with it is some parallel and
Equally distributed first folding line, first folding line are made up of some folding line grooves along linear interval distribution, the septum body
Another side is provided with the second folding line, the position correspondence of second folding line and the straight line where first folding line, and described second
Folding line is made up of some folding line grooves along linear interval distribution, and the folding line groove of first folding line and the folding line groove of the second folding line are not
It is overlapping.
As the improvement of efficiently collapsible lithium battery diaphragm described in the utility model, the folding line flute length of same first folding line
Spend identical, and be equally spaced.
For the improvement of efficiently collapsible lithium battery diaphragm described in the utility model, the length of the folding line groove of same first folding line
Spend 1/4~1/2 that sum is septum body width.
For the improvement of efficiently collapsible lithium battery diaphragm described in the utility model, the folding line slot length of same second folding line
It is identical, and be equally spaced.
For the improvement of efficiently collapsible lithium battery diaphragm described in the utility model, the length of the folding line groove of same second folding line
Spend 1/4~1/2 that sum is septum body width.
The beneficial effects of the utility model are：Efficiently collapsible lithium battery diaphragm is provided, including septum body, it is described every
The one side of membrane body is provided with some parallel and equally distributed first folding line, and first folding line is by some folding line grooves along straight line
Composition is spaced apart, the position of the another side of the septum body and the line correspondences where first folding line is provided with second
Folding line, second folding line is made up of some folding line grooves along linear interval distribution, and the folding line groove and second of first folding line
The folding line groove of folding line is not overlapping.By setting the first folding line and the second folding line respectively on the two sides of septum body, to facilitate barrier film
Body folds along the first folding line or the second folding line in any one side as needed, effectively improves the folding efficiency of septum body,
So as to improve the production efficiency of lithium battery.Simultaneously because the first folding line and the second folding line form by the folding line groove of Disjunct distribution,
To reduce influence of the folding line to septum body intensity.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is a face structural representation of the utility model septum body.
Fig. 3 is the another side structural representation of the utility model septum body.
Wherein, 1. septum body, 2. first folding lines, 3. second folding lines, 4. folding line grooves.
Embodiment
The utility model and its advantage are made below in conjunction with embodiment and Figure of description further detailed
Describe in detail bright, still, specific embodiment of the present utility model is not limited thereto.
As shown in Figures 1 to 3, there is provided efficient collapsible lithium battery diaphragm, including septum body 1, the one of the septum body 1
Face is provided with some parallel and equally distributed first folding line 2, and first folding line 2 is divided by some folding line grooves 4 along linear interval
Cloth forms, and the another side of the septum body 1 is provided with the second folding line 3, second folding line 3 and the place of the first folding line 2
Straight line position correspondence, second folding line 3 is made up of some folding line grooves 4 along linear interval distribution, and first folding line 2
Folding line groove 4 it is not overlapping with the folding line groove 4 of the second folding line 3.By setting the He of the first folding line 2 respectively on the two sides of septum body 1
Second folding line 3, to facilitate septum body 1 to be folded as needed along the first folding line 2 or the second folding line 3 in any one side, effectively
The folding efficiency of septum body 1 is improved, so as to improve the production efficiency of lithium battery.Simultaneously because the first folding line 2 and the second folding line 3
Formed by the folding line groove 4 of Disjunct distribution, to reduce influence of the folding line to the intensity of septum body 1.
Preferably, the length of folding line groove 4 of same first folding line 2 is identical, and it is equally spaced, and same first folding line 2
The length sum of folding line groove 4 is the 1/4~1/2 of the width of septum body 1.
Preferably, the length of folding line groove 4 of same second folding line 3 is identical, and it is equally spaced, and same second folding line 3
The length sum of folding line groove 4 is the 1/4~1/2 of the width of septum body 1.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned realities
The mode of applying is changed and changed.Therefore, the utility model is not limited to above-mentioned embodiment, every this area skill
It is new that art personnel any conspicuously improved, replacement or modification made on the basis of the utility model belong to this practicality
The protection domain of type.In addition, although used some specific terms in this specification, but these terms are intended merely to conveniently say
It is bright, any restrictions are not formed to the utility model.
Claims (5)
1. efficient collapsible lithium battery diaphragm, it is characterised in that：Including septum body, if the one side of the septum body is provided with
Dry parallel and equally distributed first folding line, first folding line are made up of some folding line grooves along linear interval distribution, it is described every
The another side of membrane body is provided with the second folding line, the position correspondence of second folding line and the straight line where first folding line,
Second folding line is made up of some folding line grooves along linear interval distribution, and the folding line groove of first folding line and the second folding line
Folding line groove is not overlapping.
2. efficiently collapsible lithium battery diaphragm according to claim 1, it is characterised in that：The folding line groove of same first folding line
Length is identical, and is equally spaced.
3. efficiently collapsible lithium battery diaphragm according to claim 1, it is characterised in that：The folding line groove of same first folding line
Length sum be septum body width 1/4~1/2.
4. efficiently collapsible lithium battery diaphragm according to claim 1, it is characterised in that：The folding line groove of same second folding line
Length is identical, and is equally spaced.
5. efficiently collapsible lithium battery diaphragm according to claim 1, it is characterised in that：The folding line groove of same second folding line
Length sum be septum body width 1/4~1/2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720467195.XU CN206774612U (en) | 2017-04-28 | 2017-04-28 | Efficient collapsible lithium battery diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720467195.XU CN206774612U (en) | 2017-04-28 | 2017-04-28 | Efficient collapsible lithium battery diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206774612U true CN206774612U (en) | 2017-12-19 |
Family
ID=60635689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720467195.XU Active CN206774612U (en) | 2017-04-28 | 2017-04-28 | Efficient collapsible lithium battery diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206774612U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355120A (en) * | 2020-11-17 | 2021-02-12 | 深圳吉阳智能科技有限公司 | Pole piece pressing and cutting device |
| CN112787038A (en) * | 2021-02-20 | 2021-05-11 | 天津谦同新能源科技有限公司 | Post-treatment method of lithium ion battery spinning diaphragm and spinning diaphragm |
-
2017
- 2017-04-28 CN CN201720467195.XU patent/CN206774612U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355120A (en) * | 2020-11-17 | 2021-02-12 | 深圳吉阳智能科技有限公司 | Pole piece pressing and cutting device |
| CN112787038A (en) * | 2021-02-20 | 2021-05-11 | 天津谦同新能源科技有限公司 | Post-treatment method of lithium ion battery spinning diaphragm and spinning diaphragm |
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