CN201789006U - Seal structure of cylindrical lithium battery - Google Patents
Seal structure of cylindrical lithium battery Download PDFInfo
- Publication number
- CN201789006U CN201789006U CN2010202778664U CN201020277866U CN201789006U CN 201789006 U CN201789006 U CN 201789006U CN 2010202778664 U CN2010202778664 U CN 2010202778664U CN 201020277866 U CN201020277866 U CN 201020277866U CN 201789006 U CN201789006 U CN 201789006U
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- CN
- China
- Prior art keywords
- battery
- lithium battery
- sealing
- seal structure
- enclosuring structure
- 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.)
- Expired - Fee Related
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a seal structure of a cylindrical lithium battery, which overcomes the shortages of easy leakage and difficult deformation control of existing seal structures. The seal structure comprises a battery positive and negative pole set, a battery outer casing and a battery cap, wherein the battery cap is connected to the battery outer casing for completing sealing by means of colloid adhering. The seal structure avoids deformation and stress of seal parts, is beautiful and firm, is simple in production equipment and process control, and is low in production cost since the battery casing can be made of plastics.
Description
One, technical field
The utility model relates to a kind of seal structure for lithium battery, and especially a kind of cylindrical lithium battery that is applied to can prevent to be difficult to when lithium battery from sealing the control distortion, reveal easily, influences the improvement of the cylinder type lithium battery enclosuring structure of airtight quality.
Two, background technology
The enclosuring structure of present known cylindrical lithium battery is a structure of the sealing ring extrusion modling of the shell of battery and battery cap being finished sealing with the mode of slot rolling.This hermetically-sealed construction is that battery case produces distortion under the external force effect of slot rolling cutter, compresses the sealing ring of parcel block, to reach the purpose of sealing.
This hermetically-sealed construction is difficult to the control airtight quality, be out of shape too small, seal insecure, can the generation leakage during battery uses; Be out of shape excessively, the damage sealing ring also can produce leakage during battery uses.
It is not only to be ductile but also the metal material of typing easily that existing slot rolling seals that hermetically-sealed construction requires property material for battery shell, is used to the slot rolling equipment that seals and the required precision height of technology controlling and process simultaneously.Be subjected to the process technology limit of prior art, sheathing material can only be selected metal materials such as steel, aluminium for use, with the battery prolongation of service time, it is many more that inside battery produces gas, battery forms a pressure vessel that is similar to gas tank, in case under the situation of battery failure blast, the chip of metal shell splashes the user is damaged.
In order to reach insulation, the surface of metal shell also must add one deck plastic bushing in order to insulation, has increased the processing step in the processing procedure process.
Three, summary of the invention
The purpose of this utility model is exactly the deficiency that will solve existing cylinder type lithium battery enclosuring structure, provides a kind of can the improvement to be difficult to control distortion, the easy problem of revealing when existing lithium battery seals, thereby guarantees airtight quality; Can reduce lithium battery sealing technology step again, save the cylinder type lithium battery enclosuring structure of cost.
The technical solution of the utility model is: improve existing slot rolling enclosuring structure, adopt gluing enclosuring structure, design a kind of cylinder type lithium battery hermetically-sealed construction, comprise battery plus-negative plate group, battery case and battery cap, between battery case and the block sealing ring is arranged,, rely on the filling and the bonding of colloid self by in sealing ring, forming colloid, make battery case and block bonding, to reach purpose to the cylindrical lithium battery sealing.
In the such scheme, it can be under the situation of plastics in property material for battery shell by clicking and entering the mode of sealing special glue that colloid forms, and also can handle form by battery case being made hot melt.
The employing the beneficial effects of the utility model are: 1. use this enclosuring structure, rely on the fluid sealant bonding between battery case and the block, do not stress between the obturator, and indeformable, attractive in appearance firm again.2. dispensing technology is in the extensive use of lead-acid battery field, its production equipment, technology controlling and process maturation, and simple, production cost is low.3. adopt the utility model technology, sheathing material can be selected plastics for use, and under the situation that battery explosion lost efficacy, because of plastics have pliability, chip does not splash, and reduces the injury that the user is caused.
Four, description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the schematic diagram before the existing enclosuring structure encapsulation;
Fig. 2 is the schematic diagram after the existing enclosuring structure encapsulation;
Fig. 3 is the schematic diagram that adopts after the utility model enclosuring structure encapsulates;
Fig. 4 adopts the utility model, and property material for battery shell is the schematic diagram after the enclosuring structure of plastics encapsulates.
As follows to the label declaration in each width of cloth accompanying drawing:
The 1-battery case; The 2-block; 3-slot rolling cutter; The 4-sealing ring; 5-battery plus-negative plate group
Five, embodiment
Be described in detail below in conjunction with the embodiment of accompanying drawing the enclosuring structure of the utility model cylinder type lithium battery.
As shown in Figure 1, known existing slot rolling enclosuring structure is after block 2 is installed to battery case 1, to exert pressure by 3 pairs of battery cases 1 of slot rolling cutter, force the warpage of battery case 1 according to slot rolling cutter 3, thereby make metal shell 12 parcels of will blocking a shot, be encapsulated as the shape of Fig. 2, reach sealing.
Among the embodiment, the utility model is by being that sealing ring 4 is clicked and entered fluid sealant between the slit of block 2 and battery case 1, with battery case 1 and block 2 bondings, reaches sealing as shown in Figure 3.
In the foregoing description, between shell and block, form the gel layer of one deck 0.05-0.5mm,, reach sealing bonding between shell and the block.
Among the embodiment as shown in Figure 4, property material for battery shell is plastics, handles by battery case 1 is made hot melt with the plastics of block 2 interface sections, forms colloid, makes battery case 1 and block 2 bondings, reaches sealing.
Claims (3)
1. the enclosuring structure of a cylindrical lithium battery comprises battery plus-negative plate group (5), battery case (1) and battery cap (2), it is characterized in that: described battery cap connects battery case by the colloid bonding mode, finishes sealing.
2. cylinder type lithium battery enclosuring structure according to claim 1 is characterized in that: described colloid bonding mode is to click and enter the sealing special glue in sealing ring (4), and the thickness of sealing special glue is between 0.05-0.5mm.
3. cylinder type lithium battery enclosuring structure according to claim 1 is characterized in that: described li battery shell material is plastics, and described colloid is to form by the plastics of battery case and block interface section are done the hot melt processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202778664U CN201789006U (en) | 2010-07-30 | 2010-07-30 | Seal structure of cylindrical lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202778664U CN201789006U (en) | 2010-07-30 | 2010-07-30 | Seal structure of cylindrical lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201789006U true CN201789006U (en) | 2011-04-06 |
Family
ID=43820961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202778664U Expired - Fee Related CN201789006U (en) | 2010-07-30 | 2010-07-30 | Seal structure of cylindrical lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201789006U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755421A (en) * | 2019-03-12 | 2019-05-14 | 四川福来威新能源科技有限公司 | Button cell and button cell closing lid method |
| CN112751116A (en) * | 2021-01-27 | 2021-05-04 | 惠州市德能电池有限公司 | Explosion-proof packaging structure, button battery and packaging method thereof |
| CN112751115A (en) * | 2021-01-27 | 2021-05-04 | 惠州市德能电池有限公司 | Novel packaging structure, button battery and packaging method thereof |
-
2010
- 2010-07-30 CN CN2010202778664U patent/CN201789006U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755421A (en) * | 2019-03-12 | 2019-05-14 | 四川福来威新能源科技有限公司 | Button cell and button cell closing lid method |
| CN112751116A (en) * | 2021-01-27 | 2021-05-04 | 惠州市德能电池有限公司 | Explosion-proof packaging structure, button battery and packaging method thereof |
| CN112751115A (en) * | 2021-01-27 | 2021-05-04 | 惠州市德能电池有限公司 | Novel packaging structure, button battery and packaging method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20120730 |