CN211980652U - 18650 lithium cell with fire-retardant function - Google Patents
18650 lithium cell with fire-retardant function Download PDFInfo
- Publication number
- CN211980652U CN211980652U CN202021127525.9U CN202021127525U CN211980652U CN 211980652 U CN211980652 U CN 211980652U CN 202021127525 U CN202021127525 U CN 202021127525U CN 211980652 U CN211980652 U CN 211980652U
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- China
- Prior art keywords
- double
- layer
- lithium cell
- protective shell
- fire
- Prior art date
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 70
- 239000003063 flame retardant Substances 0.000 title claims abstract description 33
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 26
- 230000017525 heat dissipation Effects 0.000 claims abstract description 16
- 229920003023 plastic Polymers 0.000 claims abstract description 6
- 238000010030 laminating Methods 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims description 33
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical group N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 25
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 53
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 12
- 229910001416 lithium ion Inorganic materials 0.000 description 12
- 230000006870 function Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001066 destructive effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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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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- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a 18650 lithium cell with fire-retardant function, including 18650 lithium cell main part, be equipped with the aluminum hull in 18650 lithium cell main part, and both ends are equipped with anodal block and negative pole gasket respectively about the aluminum hull, the block has electric core in the aluminum hull, and both ends all are equipped with the insulating piece about the electric core, 18650 lithium cell main part is equipped with double-deck protecting crust outward, and the laminating has PVC plastic envelope layer outward of double-deck protecting crust to evenly be equipped with fire-retardant layer and heat dissipation layer between the double-deck protecting crust. This 18650 lithium cell with fire-retardant function can effectual improvement 18650 lithium cell radiating effect in the use, reduces 18650 lithium cell explosion possibility of taking place, can effectually play fire-retardant guard action when 18650 lithium cell accident explodes simultaneously, is convenient for 18650 lithium cell's safe handling.
Description
Technical Field
The utility model relates to a lithium cell technical field specifically is a 18650 lithium cells with fire-retardant function.
Background
18650 is a standard lithium ion battery model number, as determined by SONY corporation of Japan for cost savings in the year, of lithium ion batteries, where 18 denotes a diameter of 18mm, 65 denotes a length of 65mm, and 0 denotes a cylindrical battery. The lithium ion battery has the advantages of light weight, large capacity, no memory effect and the like, has high energy density which is 1.5-2 times of that of a nickel-hydrogen battery with the same weight, and has low self-discharge rate. 18650 lithium ion battery has very good stability in operation, and is widely used in various big electronic fields: the portable electric heating flashlight is commonly used for high-grade highlight flashlights, portable power supplies, wireless data transmitters, electric heating warm-keeping clothes, shoes, portable instruments and meters, portable lighting equipment, portable printers, industrial instruments, medical instruments and the like. The working principle of the lithium ion battery refers to the charge and discharge principle of the lithium ion battery. When the battery is charged, lithium ions are generated on the positive electrode of the battery, and the generated lithium ions move to the negative electrode through the electrolyte. The carbon as the negative electrode has a layered structure having many pores, and lithium ions reaching the negative electrode are inserted into the pores of the carbon layer, and the more the lithium ions are inserted, the higher the charge capacity is, and when the battery is discharged, the lithium ions inserted into the carbon layer of the negative electrode are extracted and move back to the positive electrode. The more lithium ions returned to the positive electrode, the higher the discharge capacity.
The conventional 18650 lithium battery is easy to generate short circuit or explode under the condition of improper use, so that potential safety hazards are easily caused, the potential explosion hazards of the 18650 lithium battery are generally reduced by improving the heat dissipation performance of the 18650 lithium battery, the use safety of the 18650 lithium battery is improved, and the 18650 lithium battery cannot be efficiently subjected to flame retardant protection when the 18650 lithium battery explodes.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a 18650 lithium cells with fire-retardant function to solve 18650 lithium cells on the existing market that the above-mentioned background art provided and use the short circuit or explode easily under the improper condition, cause the potential safety hazard easily, can not the efficient carry out flame retardant protection's problem when 18650 lithium cells explode.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a 18650 lithium cell with fire-retardant function, includes 18650 lithium cell main part, be equipped with the aluminum hull in 18650 lithium cell main part, and both ends are equipped with anodal block and negative pole gasket respectively about the aluminum hull, the block has electric core in the aluminum hull, and both ends all are equipped with the insulating piece about the electric core, 18650 lithium cell main part is equipped with double-deck protecting crust outward, and the laminating has PVC plastic envelope layer outside the double-deck protecting crust to evenly be equipped with fire-retardant layer and heat dissipation layer between the double-deck protecting crust.
Preferably, the double-layer protective shell is made of aluminum, and through holes are uniformly formed in one side, attached to the aluminum shell, of the double-layer protective shell.
Preferably, the position of the heat dissipation layer corresponds to the position of the through hole on the inner side of the double-layer protective shell.
Preferably, the upper end and the lower end of the double-layer protective shell are both provided with inward bulges, and the bulges at the upper end and the lower end of the double-layer protective shell are of annular structures.
Preferably, the upper end of the double-layer protection shell is protruded at the upper end of the anode cap, and the lower end of the double-layer protection shell is protruded at the lower end of the cathode gasket.
Preferably, the flame-retardant layer is made of ABS resin, and both sides of the flame-retardant layer are fixedly connected with the double-layer protective shell through gluing.
Compared with the prior art, the beneficial effects of the utility model are that: this 18650 lithium cell with fire-retardant function can effectual improvement 18650 lithium cell radiating effect in the use, reduces 18650 lithium cell explosion possibility of taking place, can effectually play fire-retardant guard action when 18650 lithium cell accident explodes simultaneously, is convenient for 18650 lithium cell's safe handling. This 18650 lithium cell with fire-retardant function's the aluminum hull outside still is equipped with bilayer structure's protecting crust, can effectually protect 18650 lithium cells, improves 18650 lithium cell's safety in utilization, dispels the heat fire-retardant through fire-retardant layer and heat dissipation layer between the double-deck protecting crust simultaneously, and the bleeder vent has evenly been seted up with one side of aluminum hull laminating to double-deck protecting crust, can effectively improve 18650 lithium cell's heat dissipation, the use of 18650 lithium cells of being convenient for.
Drawings
Fig. 1 is a schematic structural diagram of a 18650 lithium battery with a flame retardant function according to the present invention;
fig. 2 is an enlarged schematic structural diagram of a position a in fig. 1 of a 18650 lithium battery with a flame retardant function according to the present invention;
fig. 3 is a schematic diagram of a dual-layer protective shell structure of 18650 lithium batteries with flame retardant function.
In the figure: 1. 18650 lithium cell main part, 2, aluminum hull, 3, double-deck protecting crust, 4, fire-retardant layer, 5, PVC plastic envelope layer, 6, insulating piece, 7, anodal block, 8, electric core, 9, negative pole gasket, 10, heat dissipation layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a18650 lithium battery with flame retardant function, including 18650 lithium battery main body 1, 18650 is equipped with the aluminum hull 2 on the lithium battery main body 1, and the upper and lower both ends of the aluminum hull 2 are equipped with positive pole cap 7 and negative pole gasket 9 respectively, positive pole cap 7 and negative pole gasket 9 are the positive and negative pole structure on the existing 18650 lithium battery, 18650 lithium battery main body 1 carries on the charging and discharging to use through the cooperation of positive pole cap 7, negative pole gasket 9 and electric core 8, the card has electric core 8 in the aluminum hull 2, and the upper and lower both ends of the electric core 8 are equipped with the insulating strip 6, the insulating strip 6 is the insulating gasket structure in the existing 18650 lithium battery, is used for protecting the connection of positive pole cap 7 and electric core 8 and negative pole gasket 9 with electric core 8, 18650 is equipped with the double-deck protective shell 3 outside the lithium battery main body 1, the double-deck protective shell 3 adopts the aluminium material, and one side of the double-deck protective shell 3 laminating aluminum hull 2 has through holes evenly opened, this, the double-layer structure of the double-layer protective shell 3 can effectively protect the 18650 lithium battery main body 1, so that potential safety hazards caused by explosion due to improper use of the 18650 lithium battery main body 1 are avoided, inward bulges are arranged at the upper end and the lower end of the double-layer protective shell 3, the bulges at the upper end and the lower end of the double-layer protective shell 3 are of an annular structure, the double-layer protective shell 3 can play a role of wrapping the aluminum shell 2 through the annular bulges at the upper end and the lower end, so that a gap between the aluminum shell 2 and the anode cap 7 during seam welding can be protected, the destructive power of explosion of the 18650 lithium battery main body 1 is reduced, the bulge at the upper end of the double-layer protective shell 3 is positioned at the upper end of the anode cap 7, the bulge at the lower end of the cathode gasket 9 is positioned at the lower end of the cathode gasket 9, the double-layer protective shell 3 can protect the anode cap 7 and the cathode gasket 9 after installation and fixation, and the exposure of the, therefore, the housing of the 18650 lithium battery main body 1 is firmer, the PVC plastic package layer 5 is attached outside the double-layer protective shell 3, the flame-retardant layer 4 and the heat dissipation layer 10 are uniformly arranged between the double-layer protective shell 3, the flame-retardant layer 4 is made of ABS resin, and both sides of the flame-retardant layer 4 are fixedly connected with the double-layer protective shell 3 through gluing, the structure enables the flame-retardant layer 4 to play a role of supporting an interlayer between double-layer structures of the double-layer protective shell 3, meanwhile, the flame-retardant layer 4 can facilitate the formation of the heat dissipation layer 10, the heat dissipation of the double-layer protective shell 3 on the aluminum shell 2 is facilitated, so that the explosion hazard of the 18650 lithium battery main body 1 is reduced, the ABS resin of the flame-retardant layer 4 can effectively retard flame during the explosion of the 18650 lithium battery main body 1, the safety hazard caused by the explosion of the 18650 lithium battery main body, this structure enables 18650 lithium battery main part 1 to generate heat during operation by conducting the heat generated through the through-hole of double-layer protective case 3 into heat dissipation layer 10.
The working principle is as follows: when the 18650 lithium battery with flame retardant function is used, firstly, the 18650 lithium battery main body 1 is charged and discharged for use through the anode cap 7 and the cathode gasket 9, the electric core 8 is connected and protected with the anode cap 7 and the cathode gasket 9 through the insulating sheet 6, heat generated by the electric core 8 during charging and discharging is conducted onto the double-layer protective shell 3 through the aluminum shell 2 and conducted into the heat dissipation layer 10 through the through hole on the inner side of the double-layer protective shell 3, and the heat is subjected to heat dissipation treatment through the heat dissipation layer 10, so that the possibility of explosion of the 18650 lithium battery main body 1 is reduced, if the 18650 lithium battery main body 1 is accidentally exploded due to improper use, the flame retardant layer 4 can effectively play a flame retardant role, meanwhile, the double-layer structure of the double-layer protective shell 3 can effectively play a reinforcing role in connecting the aluminum shell 2 with the anode cap 7 and the cathode gasket 9, so as to effectively protect the 186, the destructive power of 18650 lithium battery main part 1 explosion is reduced, and PVC plastic envelope layer 5 also plays the flame retardant protection effect to 18650 lithium battery main part 1 to accomplish a series of works.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a 18650 lithium cell with fire-retardant function, includes 18650 lithium cell main part (1), be equipped with aluminum hull (2) on 18650 lithium cell main part (1), and both ends are equipped with anodal block (7) and negative pole gasket (9) respectively about aluminum hull (2), the block has electric core (8) in aluminum hull (2), and both ends all are equipped with insulating piece (6), its characterized in that about electric core (8): 18650 lithium cell main part (1) is equipped with double-deck protecting crust (3) outward, and double-deck protecting crust (3) outer laminating has PVC plastic envelope layer (5) to evenly be equipped with fire-retardant layer (4) and heat dissipation layer (10) between double-deck protecting crust (3).
2. The 18650 lithium battery with flame retardant function of claim 1, characterized in that: the double-layer protective shell (3) is made of aluminum materials, and through holes are uniformly formed in one side, attached to the aluminum shell (2), of the double-layer protective shell (3).
3. The 18650 lithium battery with flame retardant function of claim 1, characterized in that: the position of the heat dissipation layer (10) corresponds to the position of the through hole on the inner side of the double-layer protective shell (3).
4. The 18650 lithium battery with flame retardant function of claim 1, characterized in that: the upper end and the lower end of the double-layer protective shell (3) are both provided with inward bulges, and the bulges at the upper end and the lower end of the double-layer protective shell (3) are of annular structures.
5. The 18650 lithium battery with flame retardant function of claim 4, characterized in that: the upper end of the double-layer protective shell (3) is protruded to be positioned at the upper end of the anode cap (7), and the lower end of the double-layer protective shell (3) is protruded to be positioned at the lower end of the cathode gasket (9).
6. The 18650 lithium battery with flame retardant function of claim 1, characterized in that: the flame-retardant layer (4) is made of ABS resin, and both sides of the flame-retardant layer (4) are fixedly connected with the double-layer protective shell (3) through gluing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021127525.9U CN211980652U (en) | 2020-06-17 | 2020-06-17 | 18650 lithium cell with fire-retardant function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021127525.9U CN211980652U (en) | 2020-06-17 | 2020-06-17 | 18650 lithium cell with fire-retardant function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211980652U true CN211980652U (en) | 2020-11-20 |
Family
ID=73368612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021127525.9U Expired - Fee Related CN211980652U (en) | 2020-06-17 | 2020-06-17 | 18650 lithium cell with fire-retardant function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211980652U (en) |
-
2020
- 2020-06-17 CN CN202021127525.9U patent/CN211980652U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201120 |