CN209312945U - A kind of novel low discharge lithium ion battery diaphragm - Google Patents
A kind of novel low discharge lithium ion battery diaphragm Download PDFInfo
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- CN209312945U CN209312945U CN201920069320.0U CN201920069320U CN209312945U CN 209312945 U CN209312945 U CN 209312945U CN 201920069320 U CN201920069320 U CN 201920069320U CN 209312945 U CN209312945 U CN 209312945U
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- Prior art keywords
- diaphragm
- diaphragm base
- septum body
- lithium ion
- ion battery
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a kind of novel low discharge lithium ion battery diaphragms, including shell, first diaphragm base and connecting band, anode posts are installed on the inside of the shell, and anode is wound in anode posts, cathode and septum body, anode is connected on the outside of the septum body, and cathode is provided on the inside of septum body, first diaphragm base is located at the middle part of septum body, and the two sides of septum body have been coated with enhancement layer, the second diaphragm base is provided with over and under first diaphragm base, and first diaphragm base by adhesive-layer and the second diaphragm base interconnection, refractory layer is provided in second diaphragm base, the connecting band is fixed on the top of septum body.The novel low discharge lithium ion battery diaphragm, it is not easy to occur wearing and rupture, to promote the service life of the lithium battery, when being wound, the relative position of the battery diaphragm and anode and cathode will not shift.
Description
Technical field
The utility model relates to lithium ion battery technical field, specially a kind of novel low discharge lithium ion battery diaphragm.
Background technique
Lithium ion battery diaphragm is the dress for separating the anode and cathode of lithium ion battery in lithium ion battery
It sets, so that lithium electronics is round-trip between positive and negative anodes, completes the process of charge and discharge, however there are following for existing electronic cell diaphragm
Problem.
1. intensity is lower, it is easy to appear abrasion and rupture, causes the service life of lithium ion battery diaphragm lower, thus shadow
Ring the service life of lithium battery；
2. lithium ion battery diaphragm is easy to appear offset, shadow when being wound, between battery diaphragm and anode and cathode
Ring the production and processing of lithium ion battery.
In view of the above-mentioned problems, being badly in need of carrying out innovative design on the basis of original lithium ion battery diaphragm.
Utility model content
The purpose of this utility model is to provide a kind of novel low discharge lithium ion battery diaphragms, to solve above-mentioned background skill
The existing lithium ion battery diaphragm intensity that art proposes is lower, is easy to appear abrasion and rupture, when being wound, is easy to appear offset shadow
The problem of ringing the production and processing of lithium ion battery.
To achieve the above object, the utility model provides the following technical solutions: a kind of novel low discharge lithium ion battery every
Film, including shell, the first diaphragm base and connecting band are equipped with anode posts on the inside of the shell, and are wound in anode posts
Anode, cathode and septum body are connected with anode on the outside of the septum body, and are provided with cathode on the inside of septum body,
First diaphragm base is located at the middle part of septum body, and the two sides of septum body have been coated with enhancement layer, described first every
The second diaphragm base is provided with over and under film base, and the first diaphragm base passes through adhesive-layer and the second diaphragm base
It is connected with each other, is provided with refractory layer in second diaphragm base, the connecting band is fixed on the top of septum body, and diaphragm
Micropore is offered on ontology, and convex block is connected at the top of connecting band.
Preferably, the anode posts and shell perforation connect, and setting is bonded to each other on the inside of anode posts and cathode.
Preferably, second diaphragm base is symmetrically arranged with 2, and first about the central axis of the first diaphragm base
Diaphragm base and the second diaphragm base are all made of PE material.
Preferably, the septum body and connecting band, which are pasted, connects, and central axis pair of the connecting band about septum body
Title is provided with 2.
Preferably, the micropore equal equidistantly distributed in the first diaphragm base and the second diaphragm base, and micropore and
One diaphragm base and the perforation setting of the second diaphragm base.
Preferably, the cross section of the convex block is designed as trapezium structure, and convex block equidistantly distributed in connecting band.
Compared with prior art, the utility model has the beneficial effects that the novel low discharge lithium ion battery diaphragm, does not allow
Easily occurs wearing and rupture, so that the service life of the lithium battery is promoted, when being wound, the battery diaphragm and positive and cathode
Relative position will not shift；
1. the outer surface of the first diaphragm base is coated with the enhancement layer that nitridation silicon ion is constituted, to enhance the lithium electronics electricity
The intensity in pond makes the diaphragm be not easy to occur wearing and rupture, and extends the service life of lithium ion battery diaphragm, should to be promoted
The service life of lithium battery；
2. being pasted with connecting band in septum body, it is fixed with convex block in connecting band, makes between diaphragm and anode and cathode
Frictional force, when being wound the battery diaphragm, the relative position of the battery diaphragm and anode and cathode will not shift.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model the first diaphragm base and the second diaphragm base attachment structure schematic diagram；
Fig. 3 is the utility model septum body schematic cross-sectional view；
Fig. 4 is the utility model micropore overlooking structure diagram；
Fig. 5 is that the utility model convex block installs side structure schematic view；
Fig. 6 is that the utility model connecting band installs overlooking structure diagram.
In figure: 1, shell；2, anode posts；3, positive；4, cathode；5, septum body；6, the first diaphragm base；7, viscose glue
Layer；8, the second diaphragm base；9, enhancement layer；10, refractory layer；11, connecting band；12, micropore；13, convex block.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-6 is please referred to, the utility model provides a kind of technical solution: a kind of novel low discharge lithium ion battery diaphragm,
Including shell 1, anode posts 2, anode 3, cathode 4, septum body 5, the first diaphragm base 6, adhesive-layer 7, the second diaphragm base 8,
Enhancement layer 9, refractory layer 10, connecting band 11, micropore 12 and convex block 13, the inside of shell 1 are equipped with anode posts 2, and in anode posts 2
It is wound with anode 3, cathode 4 and septum body 5, the outside of septum body 5 is connected with anode 3, and the inside setting of septum body 5
There is cathode 4, the first diaphragm base 6 is located at the middle part of septum body 5, and the two sides of septum body 5 have been coated with enhancement layer 9, the
The over and under of one diaphragm base 6 is provided with the second diaphragm base 8, and the first diaphragm base 6 passes through adhesive-layer 7 and second
Diaphragm base 8 is connected with each other, and is provided with refractory layer 10 in the second diaphragm base 8, connecting band 11 is fixed on the top of septum body 5
Portion, and septum body 5 on offer micropore 12, and the top of connecting band 11 is connected with convex block 13；
Anode posts 2 and the perforation of shell 1 connect, and the inside of anode posts 2 and cathode 4 is bonded to each other setting, and anode posts 2 can
Support is provided to the installation of anode 3, cathode 4 and septum body 5, is capable of fixing anode 3, cathode 4 and septum body 5 in shell
1 inside；
Second diaphragm base 8 is symmetrically arranged with 2, and the first diaphragm base 6 about the central axis of the first diaphragm base 6
It is all made of PE material with the second diaphragm base 8, there is the first diaphragm base 6 of refractory layer 10 in painting portion, can carry out to the diaphragm resistance to
Thermal protection prevents the diaphragm from damaging at high temperature, and PE material sexual valence is relatively high, reduces the production cost of the diaphragm；
Septum body 5 and connecting band 11, which are pasted, to be connected, and connecting band 11 is symmetrical arranged about the central axis of septum body 5
There are 2, be capable of fixing connecting band 11 in septum body 5, fall connecting band 11 will not from septum body 5, make to connect
Setting with 11 can increase the frictional force of septum body 5 and anode 3 and cathode 4, make septum body 5 and anode 3 and cathode 4 will not
It shifts；
The equal equidistantly distributed in the first diaphragm base 6 and the second diaphragm base 8 of micropore 12, and micropore 12 and the first diaphragm
Base 6 and the perforation setting of the second diaphragm base 8, enable lithium electronics to pass through in the first diaphragm base 6 and the second diaphragm base 8
Micropore 12 moves between anode 3 and cathode 4, to complete the charge and discharge of lithium electronics；
The cross section of convex block 13 is designed as trapezium structure, and the equidistantly distributed in connecting band 11 of convex block 13,13 energy of convex block
Enough increase the frictional force between septum body 5 and anode 3 and cathode 4, makes septum body 5 will not be with anode during winding
3 and cathode 4 occur relative displacement.
Working principle: when using the novel low discharge lithium ion battery diaphragm, first according to Fig. 1 and Fig. 4, shell 1
Anode posts 2 are internally provided with, the outside of anode posts 2 is wound with anode 3, cathode 4 and septum body 5, and the setting of septum body 5 exists
The centre of anode 3 and cathode 4 is pasted with connecting band 11 in septum body 5, convex block 13 is fixed in connecting band 11, is capable of increasing
Septum body 5 and anode 3 and cathode 4 between frictional force, make septum body 5 and anode 3 and cathode 4 during winding not
It can generate and ring opposite offset；
According to Fig. 1-5, septum body 5 is made of the first diaphragm base 6 and the second diaphragm base 8, and the first diaphragm base 6
Be connected with each other with the second diaphragm base 8 by adhesive-layer 7, the two sides up and down of the first diaphragm base 6 be coated with silicon nitride comprising from
The enhancement layer 9 of son, can promote the intensity of the device, extend the service life of the device, and be coated with and contain in the second diaphragm base 8
Zirconia oxide ion refractory layer 10 is opened up in the first diaphragm base 6 and the second diaphragm base 8 with promoting the heat resistance of the device
There is micropore 12, so that lithium ion is travelled to and fro between anode 3 and cathode 4 by the micropore 12 in septum body 5, make the lithium electronics
Battery is able to carry out charge and discharge.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into
Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all
It is included within the scope of protection of this utility model.
Claims (6)
1. a kind of novel low discharge lithium ion battery diaphragm, including shell (1), the first diaphragm base (6) and connecting band (11),
It is characterized in that: being equipped with anode posts (2) on the inside of the shell (1), and be wound with positive (3), cathode (4) in anode posts (2)
And septum body (5), positive (3) are connected on the outside of the septum body (5), and be provided on the inside of septum body (5) negative
Pole (4), first diaphragm base (6) is located at the middle part of septum body (5), and the two sides of septum body (5) have been coated with and have added
Strong layer (9) is provided with the second diaphragm base (8), and the first diaphragm base over and under first diaphragm base (6)
(6) it is connected with each other by adhesive-layer (7) and the second diaphragm base (8), is provided with refractory layer in second diaphragm base (8)
(10), the connecting band (11) is fixed on the top of septum body (5), and septum body (5) on offer micropore (12), and
And convex block (13) are connected at the top of connecting band (11).
2. a kind of novel low discharge lithium ion battery diaphragm according to claim 1, it is characterised in that: the anode posts
(2) it is connected with shell (1) perforation, and is bonded to each other setting on the inside of anode posts (2) and cathode (4).
3. a kind of novel low discharge lithium ion battery diaphragm according to claim 1, it is characterised in that: second diaphragm
Base (8) is symmetrically arranged with 2, and the first diaphragm base (6) and the second diaphragm about the central axis of the first diaphragm base (6)
Base (8) is all made of PE material.
4. a kind of novel low discharge lithium ion battery diaphragm according to claim 1, it is characterised in that: the septum body
(5) it pastes and connects with connecting band (11), and connecting band (11) is symmetrically arranged with 2 about the central axis of septum body (5).
5. a kind of novel low discharge lithium ion battery diaphragm according to claim 1, it is characterised in that: the micropore (12)
The equal equidistantly distributed in the first diaphragm base (6) and the second diaphragm base (8), and micropore (12) and the first diaphragm base (6)
It penetrates through and is arranged with the second diaphragm base (8).
6. a kind of novel low discharge lithium ion battery diaphragm according to claim 1, it is characterised in that: the convex block (13)
Cross section be designed as trapezium structure, and convex block (13) equidistantly distributed on connecting band (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920069320.0U CN209312945U (en) | 2019-01-16 | 2019-01-16 | A kind of novel low discharge lithium ion battery diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920069320.0U CN209312945U (en) | 2019-01-16 | 2019-01-16 | A kind of novel low discharge lithium ion battery diaphragm |
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| Publication Number | Publication Date |
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| CN209312945U true CN209312945U (en) | 2019-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920069320.0U Active CN209312945U (en) | 2019-01-16 | 2019-01-16 | A kind of novel low discharge lithium ion battery diaphragm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244375A (en) * | 2020-03-17 | 2020-06-05 | 江苏塔菲尔新能源科技股份有限公司 | Battery diaphragm and preparation method thereof, and power battery and preparation method thereof |
-
2019
- 2019-01-16 CN CN201920069320.0U patent/CN209312945U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244375A (en) * | 2020-03-17 | 2020-06-05 | 江苏塔菲尔新能源科技股份有限公司 | Battery diaphragm and preparation method thereof, and power battery and preparation method thereof |
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