CN214753922U - Novel lithium battery shell - Google Patents
Novel lithium battery shell Download PDFInfo
- Publication number
- CN214753922U CN214753922U CN202121460423.3U CN202121460423U CN214753922U CN 214753922 U CN214753922 U CN 214753922U CN 202121460423 U CN202121460423 U CN 202121460423U CN 214753922 U CN214753922 U CN 214753922U
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- CN
- China
- Prior art keywords
- glue
- upper cover
- shell
- lithium battery
- groove
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
A novel lithium battery shell comprises a shell body and an upper cover, wherein a glue groove is formed in the top of the shell body, and photocuring glue is coated in the glue groove; the shell and/or the upper cover are made of transparent materials; the light curing glue fills the gap between the shell and the upper cover. The utility model discloses set up casing and/or upper cover into transparent and adopt the mode of photocuring to replace current thermosetting mode, reduce the curing time exponential order to 10 seconds, process efficiency promotes by a wide margin, changes connection structure simultaneously, sets up the gluey groove of intercommunication and makes photocuring glue evenly fill casing and upper cover clearance with the help of the mobility that photocuring glued, has maintained good leakproofness and fastening.
Description
Technical Field
The utility model relates to a lithium battery sealing field, concretely relates to novel lithium battery shell still relates to the sealing method of lithium cell.
Background
The lithium battery is a cathode material made of lithium metal or lithium alloy, and has been widely used in the fields of mobile communication terminal equipment, urban rail transit and the like due to the advantages of high energy density, high power density, high safety, long cycle life and the like.
The connection between the lithium battery shell and the upper cover needs to be sealed by adopting a sealant, and the gluing and sealing are realized by mixing two-component epoxy glue according to a certain proportion in the prior art, so that on one hand, the mixed glue cannot be stored for a long time, and if the mixed glue is not used up, the residual materials can only be scrapped, and meanwhile, the glue gun head needs to be replaced every time, so that the consumption is high; on the other hand, the existing sealant can only be cured at normal temperature after the shell and the upper cover are closed, the normal temperature curing generally needs more than 12 hours, the product curing time is too long, and the production line beat cannot be met, a mode of baking and curing through a high-temperature furnace to shorten the curing time also exists in the prior art, but the curing acceleration through the high-temperature furnace (more than 60 ℃) still needs more than 30 minutes of curing time, the energy consumption of the high-temperature furnace is very large, and the bottleneck of long time consumption of the curing process cannot be broken through.
SUMMERY OF THE UTILITY MODEL
According to the problem that the background art provided, the utility model provides a solve, it is next right the utility model discloses do further to explain.
A novel lithium battery shell comprises a shell body and an upper cover, wherein a glue groove is formed in the top of the shell body, and photocuring glue is coated in the glue groove; the shell and/or the upper cover are made of transparent materials; the light curing glue fills the gap between the shell and the upper cover.
Preferably, the glue groove is arranged around the periphery of the top of the shell, the light-cured glue flows freely in the glue groove, the light-cured glue is uniformly and respectively in the glue groove, and after the cover is closed, gaps between the shell and the upper cover can be filled.
Preferably, the glue groove is internally provided with spacing teeth which divide the glue groove into a left row and a right row, a space is arranged between the spacing teeth, and a communication groove for communicating the two rows of glue grooves is formed at the space; the upper cover is also provided with spacing teeth at corresponding intervals; the spacing teeth between the shell and the upper cover are staggered; the contact area of the light curing glue is increased, and the sealing performance and the tightening force between the shell and the upper cover are improved.
Has the advantages that: compared with the prior art, the utility model discloses set up casing and/or upper cover into transparent form and adopt the mode of photocuring to replace current thermosetting mode, reduce curing time exponential order to 10 seconds, process efficiency promotes by a wide margin, changes connection structure simultaneously, sets up the gluey groove of intercommunication and makes photocuring glue evenly to fill casing and upper cover clearance with the help of the mobility that photocuring glued, has maintained good leakproofness and fastening.
Drawings
FIG. 1: the structure of the utility model is shown schematically;
FIG. 2: a partial top view of the housing at the glue slot;
FIG. 3: a flow chart of steps of a lithium battery shell sealing method;
in the figure: the device comprises a shell 1, an upper cover 2, a glue groove 3, spacing teeth 4 and a communicating groove 5.
Detailed Description
A specific embodiment of the present invention will be described in detail with reference to fig. 1-3.
Referring to the accompanying drawings 1 and 2, a novel lithium battery shell comprises a shell 1 and an upper cover 2, wherein a glue groove 3 is formed in the top of the shell 1, light-curing glue (namely UV glue) is coated in the glue groove, the shell 1 and/or the upper cover 2 are made of transparent materials, the upper cover is pressed on the shell 1 and extrudes the light-curing glue when the cover is closed, and the light-curing glue is filled in a gap between the shell 1 and the upper cover 2.
The glue groove of this embodiment is at 1 top of casing around a top edge border setting, and glue groove end to end connection promptly, photocuring glues and can the free flow in glue the groove, and photocuring glues uniformly respectively in glue the groove, closes the lid back, more can fill the gap between casing 1, upper cover 2.
In the embodiment, after the cover is closed, the curing of the light-curing adhesive is realized through the irradiation of the ultraviolet lamp; when the adhesive is exposed under the UV lamp, UV light irradiates the light-cured adhesive through the transparent shell 1 and/or the upper cover 2, the photoinitiator in the adhesive solution is decomposed to generate a large number of free radicals, the double bonds of the monomers are opened by the free radicals to initiate polymerization reaction, a polymer chain is generated, the polymer chain continuously grows, and finally the adhesive layer with a reticular structure is formed to finish curing.
The glue groove 3 of this embodiment is provided with interval tooth 4, and interval tooth 4 will glue the groove and divide into about two, has the interval between the interval tooth 4, and this interval department forms the intercommunication groove 5 that two glue grooves of intercommunication, simultaneously the upper cover 2 on also be provided with the interval tooth that corresponds the interval, when closing the lid, the interval tooth 4 between casing 1, the upper cover 2 is crisscross to be linked up, has increased the area of contact that the photocuring was glued, has promoted the tight joining force between sealing performance and casing 1, upper cover 2.
Referring to the attached drawing 3, the utility model discloses a photocuring's mode is accelerated the solidification, realizes the sealed purpose of solidification, and concrete lithium cell's sealing method is as follows:
s1, gluing the shell 1 in a glue groove through an automatic gluing machine, wherein the light-cured glue is uniformly distributed in the glue groove;
s2, covering the upper cover 2 on the shell 1 to form an integral lithium battery, extruding the light curing glue by the upper cover 2 under the self-weight or applying downward pressure to the upper cover 2, and enabling the light curing glue to flow and fill the gap between the shell 1 and the upper cover 2;
and S3, clamping the lithium battery by using the fixing tool, and then placing the lithium battery in a UV tunnel furnace, wherein an ultraviolet lamp is arranged in the UV tunnel furnace, and carrying out photocuring on the lithium battery.
The power of the ultraviolet lamp adopted by the embodiment is 8000W, the wavelength is 300-400 nm, the curing time is compressed to 10 seconds, and the production efficiency of the lithium battery is matched.
The utility model discloses set up casing 1 and/or upper cover 2 into transparent form and adopt photocuring's mode to replace current thermosetting mode, reduce curing time exponential order to 10 seconds, process efficiency promotes by a wide margin, changes connection structure simultaneously, sets up the gluey groove of intercommunication and makes photocuring glue evenly fill casing and upper cover clearance with the help of the mobility that photocuring glued, has maintained good leakproofness and fastening.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A novel lithium battery shell comprises a shell body (1) and an upper cover (2), and is characterized in that:
the top of the shell (1) is provided with a glue groove (3), and photocuring glue is coated in the glue groove;
the shell (1) and/or the upper cover (2) are made of transparent materials;
the light curing glue is filled in the gap between the shell (1) and the upper cover (2).
2. The lithium battery cell casing of claim 1, wherein:
the glue groove is arranged around the periphery of the top of the shell (1), and the light-cured glue flows freely in the glue groove.
3. The lithium battery cell casing of claim 2, wherein:
the glue groove (3) is internally provided with spacing teeth (4), and the spacing teeth (4) divide the glue groove into a left row and a right row;
intervals are arranged between the interval teeth (4), and a communication groove (5) for communicating the two rows of glue grooves is formed at the intervals;
the upper cover (2) is also provided with spacing teeth at corresponding intervals;
the spacing teeth (4) of the shell (1) and the upper cover (2) are staggered.
4. The lithium battery cell casing of claim 1, wherein:
the power of an ultraviolet lamp used for curing the light-cured adhesive is 8000W, and the wavelength is 300-400 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121460423.3U CN214753922U (en) | 2021-06-29 | 2021-06-29 | Novel lithium battery shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121460423.3U CN214753922U (en) | 2021-06-29 | 2021-06-29 | Novel lithium battery shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214753922U true CN214753922U (en) | 2021-11-16 |
Family
ID=78631016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121460423.3U Active CN214753922U (en) | 2021-06-29 | 2021-06-29 | Novel lithium battery shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214753922U (en) |
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2021
- 2021-06-29 CN CN202121460423.3U patent/CN214753922U/en active Active
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