CN220429549U - Sodium battery cell protective film with strong protection - Google Patents
Sodium battery cell protective film with strong protection Download PDFInfo
- Publication number
- CN220429549U CN220429549U CN202320454950.6U CN202320454950U CN220429549U CN 220429549 U CN220429549 U CN 220429549U CN 202320454950 U CN202320454950 U CN 202320454950U CN 220429549 U CN220429549 U CN 220429549U
- Authority
- CN
- China
- Prior art keywords
- layer
- resistant
- wear
- protective film
- aluminum foil
- Prior art date
- Legal status (The legal status 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 status listed.)
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- 230000004224 protection Effects 0.000 title claims abstract description 33
- 230000001681 protective effect Effects 0.000 title claims abstract description 30
- 229910052708 sodium Inorganic materials 0.000 title claims abstract description 21
- 239000011734 sodium Substances 0.000 title claims abstract description 21
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 128
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 23
- 239000011888 foil Substances 0.000 claims abstract description 22
- 239000004677 Nylon Substances 0.000 claims abstract description 11
- 229920001778 nylon Polymers 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000011229 interlayer Substances 0.000 claims abstract description 6
- 238000005260 corrosion Methods 0.000 claims description 26
- 239000003792 electrolyte Substances 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 6
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 5
- 230000009979 protective mechanism Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 229910001415 sodium ion Inorganic materials 0.000 description 8
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a protective film of a sodium battery cell with strong protection, which relates to the field of sodium batteries; the wear-resistant mechanism is arranged on the protection mechanism and comprises a buffer component arranged on the protection mechanism and a wear-resistant component arranged on the buffer component, the buffer component comprises an elastic buffer layer arranged on the aluminum foil layer and a nylon layer arranged below the elastic buffer layer, and the wear-resistant component comprises a wear-resistant layer arranged on the elastic buffer layer; the sealing mechanism is arranged below the protection mechanism and comprises a heat-resistant interlayer arranged below the aluminum foil layer. According to the protective film for the sodium battery cell, disclosed by the utility model, the nylon layer and the elastic buffer layer are added on the aluminum foil layer to protect the aluminum foil layer, so that the protective capability of the protective film is improved, and meanwhile, the wear-resistant layer and the wear-resistant strips are added on the elastic buffer layer to improve the wear-resistant effect of the protective film.
Description
Technical Field
The utility model relates to the field of sodium batteries, in particular to a protective film for a battery cell of a sodium battery with strong protection.
Background
The sodium ion battery is a secondary battery (rechargeable battery) and mainly works by means of sodium ions moving between an anode and a cathode, and the electrode material used by the sodium ion battery is mainly sodium salt, and compared with lithium salt, the sodium ion battery is richer in storage and lower in price, and the working principle of the sodium ion battery is similar to that of the lithium ion battery. Because sodium ions are larger than lithium ions, when the requirements on weight and energy density are not high, the sodium ion battery is a cost-effective substitute, and the aluminum plastic film is a film body which integrates multiple protection functions of heat resistance, insulation, impact resistance, puncture resistance and the like on the sodium ion battery.
The battery core of the sodium battery is also required to be provided with a protective film when in use, the existing battery core is easy to wear and corrode when in use, the protection performance is poor, and the service life of the battery core is influenced.
Disclosure of Invention
The utility model aims to provide a protective film for a sodium battery cell, which overcomes the defects of the prior art, increases the wear resistance of the protective film by adding a buffer component and a wear-resistant component on the protective film, and simultaneously seals the cell by a sealing mechanism.
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
a protective film for a sodium battery cell with strong protection, which comprises
The protection mechanism comprises an aluminum foil layer;
the wear-resistant mechanism is arranged on the protection mechanism and comprises a buffer component arranged on the protection mechanism and a wear-resistant component arranged on the buffer component, the buffer component comprises an elastic buffer layer arranged on the aluminum foil layer and a nylon layer arranged below the elastic buffer layer, and the wear-resistant component comprises a wear-resistant layer arranged on the elastic buffer layer;
the sealing mechanism is arranged below the protection mechanism and comprises a heat-resistant interlayer arranged below the aluminum foil layer.
Further, the protection mechanism further comprises a first anticorrosive layer arranged on the aluminum foil layer and a second anticorrosive layer arranged below the aluminum foil layer, and the first anticorrosive layer and the second anticorrosive layer both use anticorrosive paint.
Further, the buffer component further comprises an adhesion layer arranged below the nylon layer, the adhesion layer is adhered to the first anti-corrosion layer, a third anti-corrosion layer is arranged on the elastic buffer layer, and anti-corrosion paint is also used for the third anti-corrosion layer.
Further, the wear-resistant component further comprises a wear-resistant strip arranged on the wear-resistant layer, and the wear-resistant layer is connected with the third anti-corrosion layer through an adhesion layer.
Further, the sealing mechanism further comprises an adhesion layer arranged below the heat-resistant interlayer and an electrolyte-resistant layer arranged below the adhesion layer, and the electrolyte-resistant layer is arranged below the heat-sealing inner layer.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the nylon layer and the elastic buffer layer are added on the aluminum foil layer to protect the aluminum foil layer, so that the protection capability of the protective film is improved, and meanwhile, the wear-resistant layer and the wear-resistant strips are added on the elastic buffer layer to improve the wear-resistant effect of the protective film, and the third anti-corrosion layer on the elastic buffer layer can be protected to prevent the third anti-corrosion layer from being worn, so that the protective film is corroded.
According to the utility model, the battery cell is sealed through the sealing mechanism, so that electrolyte in the battery cell is prevented from leaking, the effect of the whole sodium battery is affected, and the protective capability of the protective film is further improved.
The utility model has the characteristics of strong protection, good wear-resisting effect and long service life.
Drawings
FIG. 1 is a schematic view of the external overall structure of a protective film for a sodium cell;
FIG. 2 is a schematic diagram of a protective film of a sodium cell with high protection;
FIG. 3 is a schematic view of a partially enlarged structure of the protective film of the sodium battery cell shown in FIG. 1 at A;
fig. 4 is a schematic view of a partially enlarged structure of the protective film of the sodium battery cell at B in fig. 2.
In the figure: 100. a protective mechanism; 101. an aluminum foil layer; 102. a first corrosion protection layer; 103. a second anti-corrosion layer; 200. a wear-resistant mechanism; 201. an elastic buffer layer; 202. a nylon layer; 203. a wear-resistant layer; 204. an adhesion layer; 205. a third anti-corrosion layer; 206. wear strips; 300. a closing mechanism; 301. a heat resistant barrier; 302. an electrolyte-resistant layer; 303. and (5) heat sealing the inner layer.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
Referring to FIGS. 1-4, the present utility model is a protective film for a sodium battery cell, comprising
A protective mechanism 100 comprising an aluminum foil layer 101;
the wear-resistant mechanism 200 is arranged on the protection mechanism 100 and comprises a buffer component arranged on the protection mechanism 100 and a wear-resistant component arranged on the buffer component, wherein the buffer component comprises an elastic buffer layer 201 arranged on the aluminum foil layer 101 and a nylon layer 202 arranged below the elastic buffer layer 201, and the wear-resistant component comprises a wear-resistant layer 203 arranged on the elastic buffer layer 201;
the closing mechanism 300, which is disposed under the shielding mechanism 100, includes a heat resistant barrier 301 disposed under the aluminum foil layer 101.
When using this electric core protection film to protect sodium cell electric core, through adding nylon layer 202 and elasticity buffer layer 201 on aluminium foil layer 101, protect aluminium foil layer 101, increase the protective film's protection ability, increase wearing layer 203 and wear-resisting strip 206 on elasticity buffer layer 201 simultaneously, with the wear-resisting effect of increase protection film, also can protect the third anticorrosive coating 205 on the elasticity buffer layer 201, prevent third anticorrosive coating 205 by wearing and tearing, make the protection film by the corruption, seal the electric core through closing mechanism 300, prevent that the inside electrolyte of electric core from appearing leaking, influence the effect of whole sodium cell, further increased the protection ability of protection film.
In order to protect the sodium battery cell, the protection mechanism 100 further includes a first anticorrosive layer 102 disposed on the aluminum foil layer 101 and a second anticorrosive layer 103 disposed under the aluminum foil layer 101, where the first anticorrosive layer 102 and the second anticorrosive layer 103 both use anticorrosive paint.
In order to increase the anti-corrosion effect of the protective film, the buffer assembly further comprises an adhesion layer 204 arranged below the nylon layer 202, the adhesion layer 204 is adhered to the first anti-corrosion layer 102, a third anti-corrosion layer 205 is arranged on the elastic buffer layer 201, and anti-corrosion paint is also used for the third anti-corrosion layer 205.
In order to increase the wear-resistant effect of the protective film, the wear-resistant assembly further comprises a wear strip 206 provided on the wear-resistant layer 203, the wear-resistant layer 203 being connected to the third anti-corrosion layer 205 also by means of an adhesive layer 204.
In order to seal and protect the sodium battery cell, the sealing mechanism 300 further comprises an adhesion layer 204 arranged below the heat-resistant interlayer 301 and an electrolyte-resistant layer 302 arranged below the adhesion layer 204, wherein the electrolyte-resistant layer 302 is arranged below the heat-seal inner layer 303.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a sodium cell electric core protection film that protectiveness is strong which characterized in that: comprising
A protective mechanism (100) comprising an aluminum foil layer (101);
the wear-resistant mechanism (200) is arranged on the protection mechanism (100) and comprises a buffer component arranged on the protection mechanism (100) and a wear-resistant component arranged on the buffer component, wherein the buffer component comprises an elastic buffer layer (201) arranged on the aluminum foil layer (101) and a nylon layer (202) arranged below the elastic buffer layer (201), and the wear-resistant component comprises a wear-resistant layer (203) arranged on the elastic buffer layer (201);
and the sealing mechanism (300) is arranged below the protection mechanism (100) and comprises a heat-resistant interlayer (301) arranged below the aluminum foil layer (101).
2. The protective film of claim 1, wherein: the protection mechanism (100) further comprises a first anti-corrosion layer (102) arranged on the aluminum foil layer (101) and a second anti-corrosion layer (103) arranged under the aluminum foil layer (101), and the first anti-corrosion layer (102) and the second anti-corrosion layer (103) are both made of anti-corrosion paint.
3. The protective film of claim 1, wherein: the buffer assembly further comprises an adhesion layer (204) arranged below the nylon layer (202), the adhesion layer (204) is adhered to the first anti-corrosion layer (102) downwards, a third anti-corrosion layer (205) is arranged on the elastic buffer layer (201), and anti-corrosion paint is also used for the third anti-corrosion layer (205).
4. The protective film of claim 1, wherein: the wear-resistant assembly further comprises a wear-resistant strip (206) arranged on the wear-resistant layer (203), and the wear-resistant layer (203) and the third anti-corrosion layer (205) are also connected through an adhesion layer (204).
5. The protective film of claim 1, wherein: the sealing mechanism (300) further comprises an adhesion layer (204) arranged below the heat-resistant interlayer (301) and an electrolyte-resistant layer (302) arranged below the adhesion layer (204), and the electrolyte-resistant layer (302) is arranged below the heat-sealing inner layer (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320454950.6U CN220429549U (en) | 2023-03-12 | 2023-03-12 | Sodium battery cell protective film with strong protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320454950.6U CN220429549U (en) | 2023-03-12 | 2023-03-12 | Sodium battery cell protective film with strong protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220429549U true CN220429549U (en) | 2024-02-02 |
Family
ID=89699932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320454950.6U Active CN220429549U (en) | 2023-03-12 | 2023-03-12 | Sodium battery cell protective film with strong protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220429549U (en) |
-
2023
- 2023-03-12 CN CN202320454950.6U patent/CN220429549U/en active Active
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| GR01 | Patent grant |