CN210403947U - Explosion-proof lithium ion battery - Google Patents
Explosion-proof lithium ion battery Download PDFInfo
- Publication number
- CN210403947U CN210403947U CN201921339022.5U CN201921339022U CN210403947U CN 210403947 U CN210403947 U CN 210403947U CN 201921339022 U CN201921339022 U CN 201921339022U CN 210403947 U CN210403947 U CN 210403947U
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- Prior art keywords
- negative
- positive
- explosion
- negative pole
- hole
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 17
- 238000005538 encapsulation Methods 0.000 claims abstract description 29
- 230000005611 electricity Effects 0.000 claims abstract description 8
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 4
- 238000004806 packaging method and process Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses an explosion-proof type lithium ion battery, including casing, electric core, anodal pin, negative pole pin and encapsulation lid, the electric core is located inside the casing, the electric core is including stacking gradually positive plate, diaphragm and the negative pole piece of coiling, the top of casing is equipped with the opening, the encapsulation lid is sealed the open-top of casing, be provided with anodal hole and negative pole hole on the encapsulation lid, anodal pin passes anodal hole, the negative pole pin passes the negative pole hole, just anodal pin electricity is connected the positive plate, the negative pole pin electricity is connected the negative pole piece, the encapsulation lid is the rubber lid, explosion-proof groove has been seted up to the bottom surface of encapsulation lid. This technical scheme is used for solving the problem that there is the explosion risk in current battery.
Description
Technical Field
The utility model belongs to the technical field of the battery, concretely relates to explosion-proof type lithium ion battery.
Background
At present, lithium batteries on the market are generally externally packaged by hard materials such as stainless steel and the like. Because the lithium battery can generate gas under the conditions of breakage, leakage, overcharge and high temperature, in order to prevent the explosion caused by the gas which cannot be released in time, the common method is to open an air leakage opening on the head part of the anode or to arrange an explosion-proof indentation at the bottom of the shell body. The conventional method still has a certain risk of explosion when the internal gas is suddenly pressurized. Meanwhile, the led-out electrodes are not reinforced, so that the electrodes are easy to fall off when the electrodes are not used properly, and certain defects are caused in safety and durability.
SUMMERY OF THE UTILITY MODEL
To the technical problem that above-mentioned exists, the utility model provides an explosion-proof type lithium ion battery to solve the problem that current battery exists the explosion risk, this explosion-proof type lithium ion battery can effectively improve the security performance of battery.
The utility model discloses an explosion-proof type lithium ion battery, including casing, electric core, anodal pin, negative pole pin and encapsulation lid, the electric core is located inside the casing, the electric core is including stacking gradually positive plate, diaphragm and the negative pole piece of coiling, the top of casing is equipped with the opening, the encapsulation lid is sealed the open-top of casing, be provided with anodal hole and negative pole hole on the encapsulation lid, anodal pin passes anodal hole, the negative pole pin passes the negative pole hole, just anodal pin electricity is connected the positive plate, the negative pole pin electricity is connected the negative pole piece, the encapsulation lid is the rubber lid, explosion-proof groove has been seted up to the bottom surface of encapsulation lid.
Further, the positive pole lead needle and the positive pole hole are in interference fit, and the negative pole lead needle and the negative pole hole are in interference fit.
Further, the shell is an aluminum shell.
Furthermore, the positive electrode guide pin comprises a positive electrode limiting part, a positive electrode inserting part and a positive electrode pin part, two ends of the positive electrode inserting part are respectively connected with the positive electrode limiting part and the positive electrode pin part, the positive electrode insertion part is arranged in the positive electrode hole, the positive electrode limiting part is positioned in the shell, the outer diameter of the positive electrode limiting part is larger than that of the positive electrode inserting part, the positive electrode needle part is positioned outside the packaging cover, the negative electrode guide pin comprises a negative electrode limiting part, a negative electrode inserting part and a negative electrode pin part, two ends of the negative electrode inserting part are respectively connected with the negative electrode limiting part and the negative electrode pin part, the negative electrode insertion part is arranged in the negative electrode hole, the negative electrode limiting part is positioned in the shell, and the outer diameter of the negative electrode limiting part is larger than that of the negative electrode inserting part, and the negative electrode needle part is positioned outside the packaging cover.
The beneficial effects of the utility model reside in that: adopt the rubber lid as the encapsulation lid, the encapsulation lid is opened through the mould has explosion-proof groove, and explosion-proof groove is the weak department of encapsulation lid, and causes short circuit or overcharge etc. when the battery is inside to generate gas, leads to the inside high pressure that forms of battery, the encapsulation lid can the position of explosion-proof groove splits, can release the gas that the lithium cell produced under the condition of taking place damaged leakage, overcharging, high temperature, plays explosion-proof. And the capacitor type packaging is adopted, so that the manufacturing process is mature and simple.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an explosion-proof lithium ion battery;
FIG. 2 is another schematic diagram of an explosion-proof lithium ion battery;
fig. 3 is a schematic diagram of an internal structure of an explosion-proof lithium ion battery.
Detailed Description
The utility model discloses an explosion-proof type lithium ion battery, this explosion-proof type lithium ion battery can effectively improve the security performance of battery.
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, only some embodiments, not all embodiments, of the present invention are described. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the utility model discloses an explosion-proof type lithium ion battery, including casing 2, electric core 1, anodal needle 4, negative pole needle 5 and encapsulation lid 3, electric core 1 is located inside casing 2, electric core 1 is including stacking gradually positive plate, diaphragm and the negative pole piece of coiling, the top of casing 2 is equipped with the opening, encapsulation lid 3 is sealed the open-top of casing 2, be provided with anodal hole and negative pole hole on the encapsulation lid 3, anodal needle 4 passes anodal hole, negative pole needle 5 passes negative pole hole, just anodal needle 4 electricity is connected the positive plate, 5 electricity connections of negative pole needle the negative pole piece, encapsulation lid 3 is the rubber lid, explosion-proof groove 6 has been seted up to the bottom surface of encapsulation lid 3.
The utility model discloses a rubber lid is as encapsulation lid 3, encapsulation lid 3 is opened through the mould has explosion-proof groove 6, and explosion-proof groove 6 is the weak department of encapsulation lid 3, and the reason such as draw the short circuit or cross filling when the battery is inside generates gas, leads to the inside high pressure that forms of battery, encapsulation lid 3 can the position of explosion-proof groove 6 splits open, and the lithium cell can be released and the gas that produces under the condition of taking place the damage leakage, cross filling, high temperature plays the explosion-proof effect. And the capacitor type packaging is adopted, so that the manufacturing process is mature and simple.
The positive electrode guide pin 4 is in interference fit with the positive electrode hole, and the negative electrode guide pin 5 is in interference fit with the negative electrode hole.
The shell 2 is an aluminum shell.
The positive lead needle 4 comprises a positive limiting part 9, a positive inserting part 8 and a positive needle part 7, the two ends of the positive inserting part 8 are respectively connected with the positive limiting part 9 and the positive needle part 7, the positive inserting part 8 is arranged in the positive hole, the positive limiting part 9 is positioned inside the shell 2, the outer diameter of the positive limiting part 9 is larger than that of the positive inserting part 8, the positive needle part 7 is positioned outside the packaging cover 3, the negative lead needle 5 comprises a negative limiting part 12, a negative inserting part 11 and a negative needle part 10, the two ends of the negative inserting part 11 are respectively connected with the negative limiting part 12 and the negative needle part 10, the negative inserting part 11 is arranged in the negative hole, the negative limiting part 12 is positioned inside the shell 2, and the outer diameter of the negative limiting part 12 is larger than that of the negative inserting part 11, the negative electrode pin portion 10 is located outside the sealing cover 3. Through the structure, the positive electrode lead needle 4 and the negative electrode lead needle 5 can be effectively fixed, and meanwhile, the waterproof effect is achieved.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (4)
1. The utility model provides an explosion-proof type lithium ion battery, its characterized in that, includes casing, electric core, anodal needle, negative pole needle and encapsulation lid, the electric core is located inside the casing, the electric core is including range upon range of positive plate, diaphragm and the negative pole piece of coiling in proper order, the top of casing is equipped with the opening, the encapsulation lid is sealed the open-top of casing, be provided with anodal hole and negative pole hole on the encapsulation lid, anodal needle passes anodal hole, the negative pole needle passes negative pole hole, just anodal needle electricity is connected positive plate, the negative pole needle electricity is connected the negative pole piece, the encapsulation lid is the rubber lid, explosion-proof groove has been seted up to the bottom surface of encapsulation lid.
2. The explosion-proof lithium ion battery of claim 1, wherein the positive electrode lead pin is in interference fit with the positive electrode hole, and the negative electrode lead pin is in interference fit with the negative electrode hole.
3. The explosion-proof lithium ion battery of claim 1, wherein the casing is an aluminum casing.
4. The explosion-proof lithium ion battery of claim 1, wherein the positive pin comprises a positive limiting portion, a positive insertion portion and a positive pin portion, two ends of the positive insertion portion are respectively connected with the positive limiting portion and the positive pin portion, the positive insertion portion is disposed in the positive hole, the positive limiting portion is disposed inside the case, the positive limiting portion has an outer diameter larger than that of the positive insertion portion, the positive pin portion is disposed outside the package cover, the negative pin comprises a negative limiting portion, a negative insertion portion and a negative pin portion, two ends of the negative insertion portion are respectively connected with the negative limiting portion and the negative pin portion, the negative insertion portion is disposed in the negative hole, the negative limiting portion is disposed inside the case, and the negative limiting portion has an outer diameter larger than that of the negative limiting portion, the negative pin portion is located outside the encapsulation cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921339022.5U CN210403947U (en) | 2019-08-19 | 2019-08-19 | Explosion-proof lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921339022.5U CN210403947U (en) | 2019-08-19 | 2019-08-19 | Explosion-proof lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210403947U true CN210403947U (en) | 2020-04-24 |
Family
ID=70339325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921339022.5U Active CN210403947U (en) | 2019-08-19 | 2019-08-19 | Explosion-proof lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210403947U (en) |
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2019
- 2019-08-19 CN CN201921339022.5U patent/CN210403947U/en active Active
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