CN208608233U - A kind of sealing structure of lithium battery group - Google Patents
A kind of sealing structure of lithium battery group Download PDFInfo
- Publication number
- CN208608233U CN208608233U CN201820804059.XU CN201820804059U CN208608233U CN 208608233 U CN208608233 U CN 208608233U CN 201820804059 U CN201820804059 U CN 201820804059U CN 208608233 U CN208608233 U CN 208608233U
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- China
- Prior art keywords
- lithium battery
- pole
- sealing structure
- sealant
- battery group
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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
Abstract
The utility model discloses a kind of sealing structures of lithium battery group, including lithium battery ontology, the lithium battery ontology is by lithium battery casing, copper alloy pole, aluminium alloy pole, sealant and electrolyte composition, the upper end of the lithium battery ontology is equipped with copper alloy pole and aluminium alloy pole, the downside of the copper alloy pole and aluminium alloy pole is equipped with sealant, electrolyte is equipped on the downside of the sealant, metallized ceramic ring is equipped between the sealant and pole, the sealant includes cover board, buffer layer, protection board, absorb water gasket and insulation board, the pole is welded to connect by metallized ceramic ring using soldering processes and cover board, the bottom of the lithium battery ontology is equipped with insulation board.Main material of the utility model using ceramics as sealing structure, improves reliability and the service life of sealing structure, ABS/PC alloy resin makes it have more leakproofness, heat resistance, shock resistance, anticreep and intensity anti-flammability as buffer layer, environment friendly and pollution-free.
Description
Technical field
The utility model relates to lithium batteries to assemble field, specially a kind of sealing structure of lithium battery group.
Background technique
Lithium battery is one kind using lithium metal or lithium alloy as negative electrode material, using the one-shot battery of non-aqueous electrolytic solution,
It with lithium ion polymer battery is different with rechargeable battery lithium ion battery.With the development of science and technology, lithium battery
It is widely used in electric car, electric bicycle, battery-operated motor cycle, electric car, military equipment, aerospace, notebook electricity
The multiple fields such as brain, mobile power source.Lithium battery group has the remarkable advantages such as operating voltage height, long service life, energy conservation and environmental protection,
Through the sophisticated industry for becoming energy storage field.With the development of science and technology, lithium battery is widely used in electric car, electrical salf-walking
The multiple fields such as vehicle, battery-operated motor cycle, electric car, military equipment, aerospace, laptop, mobile power source.To ensure
The safety in utilization of lithium electricity group, lithium battery group are generally sealed in shell, realize the waterproof and dustproof of lithium battery, to improve lithium electricity
The service life in pond.And the moisture content in lithium battery is of crucial importance the performance of lithium battery, and it may
Cell internal pressure is caused to become larger, cell deformation, or even Decrepitation Phenomena occurs.
And the sealing on existing lithium battery between pole and cover board relies primarily on rubber seal, passes through the side of extrusion deformation
Formula guarantees to seal, and the corrosion resistance of organic matter, high temperature resistance be intended to want poor far beyond inorganic non-metallic materials such as ceramics, passes
The stack seal mode of system generallys use gluing and gasket seal, but gluing need to solidify and have pollution because of glue, influence efficiency and
Enterprise employee health；Gasket seal because gasket physical attribute, pushing process will cause material extension, sealing effect is very poor, and
Under hot conditions, the service life of battery also will receive influence.Battery when being collided may to inside battery structure by
It influences.Therefore, aiming at the shortcomings in the prior art, we have proposed a kind of sealing structures of lithium battery group.
Utility model content
The purpose of this utility model is to provide a kind of sealing structures of lithium battery group, solve proposed in background technique
The problem of.
To achieve the above object, the utility model provides the following technical solutions:
A kind of sealing structure of lithium battery group, including lithium battery ontology, the lithium battery ontology are closed by lithium battery casing, copper
Golden pole, aluminium alloy pole, sealant and electrolyte composition, the upper end of the lithium battery ontology is equipped with copper alloy pole and aluminium closes
The downside of golden pole, the copper alloy pole and aluminium alloy pole is equipped with sealant, is equipped with electrolyte, institute on the downside of the sealant
It states and is equipped with metallized ceramic ring between sealant and pole, the sealant includes cover board, buffer layer, protection board, water suction gasket
And insulation board, the pole are welded to connect by metallized ceramic ring using soldering processes and cover board, the lithium battery ontology
Bottom is equipped with insulation board.
As a kind of preferred embodiment of the utility model, the metallized ceramic ring is by ceramics and molybdenum manganese Metal layer group
At the ceramic structure in a ring, size is identical as pole cross section size, metallizes, makes through high-temperature process surface
Its surface is covered with one layer of molybdenum manganese Metal layer, forms the metallized ceramic ring.
As a kind of preferred embodiment of the utility model, the lithium battery body interior is respectively equipped with pole from inside to outside
The bottom of column, electrolyte, anode, diaphragm plate, cathode, buffer layer and lithium battery casing, the lithium battery ontology is equipped with insulation board.
As a kind of preferred embodiment of the utility model, the diaphragm plate is the list of the compositions such as polyethylene, polypropylene
Micro- porous membrane of layer or multilayer.
As a kind of preferred embodiment of the utility model, it is by carbonic acid that the electrolyte, which is non-aqueous electrolytic solution,
The unitary of the compositions such as propylene ester, ethylene carbonate, dimethyl carbonate, diethyl carbonate, methyl ethyl carbonate, binary or
The mixture of person's ternary.
As a kind of preferred embodiment of the utility model, the surrounding side of the cover board and lithium battery casing pass through gold
Belong to being welded to connect and fix.
As a kind of preferred embodiment of the utility model, PTC constrictor is equipped between the protection board and buffer layer,
And it is fixedly connected with protection board.
As a kind of preferred embodiment of the utility model, the contact surface of the anode and electrolyte, which is equipped with, applies carbon
Aluminium foil layer.
As a kind of preferred embodiment of the utility model, the buffer layer uses ABS/PC alloy resin material system
At.
Compared with prior art, the utility model has the beneficial effects that
1. a kind of sealing structure of lithium battery group, which is equipped with metallized ceramic ring, utilizes pricker by using suitable solder
Welding, realizes the welded connecting of ceramics and metal, and keeps the leakproofness of weldment, close instead of being used on general lithium battery
The rubber seal of envelope more has corrosion resistance, heat-resisting quantity, improves the service life of lithium battery group.
2. a kind of sealing structure of lithium battery group uses ABS/PC alloy resin material by being equipped with buffer layer, buffer layer
Material is made, and has good heat resistance, toughness, impact strength, intensity anti-flammability, processability, apparent mass and low-density.
3. a kind of sealing structure of lithium battery group, which passes through, is equipped with water suction gasket and insulation board, reinforce lithium battery waterproof,
Dust-proof, anticreep function.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is a kind of lithium battery structure schematic diagram of the sealing structure of lithium battery group of the utility model；
Fig. 2 is a kind of lithium battery transverse sectional view of the sealing structure of lithium battery group of the utility model；
Fig. 3 is a kind of partially sealed layer cut-away view of sealing structure of lithium battery group of the utility model；
In figure: 1. lithium battery ontologies, 2. lithium battery casings, 3. copper alloy poles, 4. aluminium alloy poles, 5. sealants, 6.
Electrolyte, 7. poles, 8. metallized ceramic rings, 9. cover boards, 10. protection boards, 11. water suction gaskets, 12. insulation boards, 13. ceramics,
14. molybdenum manganese Metal layer, 15. anodes, 16. diaphragm plates, 17. cathode, 18. carbon-coated aluminum foils layers, 19.PTC constrictor, 20. dampings
Layer.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of sealing structure of lithium battery group, including lithium
Battery body 1, the lithium battery ontology 1 is by lithium battery casing 2, copper alloy pole 3, aluminium alloy pole 4, sealant 5 and electrolysis
Liquid 6 forms, and the upper end of the lithium battery ontology 1 is equipped with copper alloy pole 3 and aluminium alloy pole 4,3 He of copper alloy pole
The downside of aluminium alloy pole 4 is equipped with sealant 5, is equipped with electrolyte 6 on the downside of the sealant 5, the sealant 5 and pole 7 it
Between be equipped with metallized ceramic ring 8, the sealant 5 includes cover board 9, buffer layer 20, protection board 10, water suction gasket 11 and insulation board
12, the pole 7 is welded to connect by metallized ceramic ring 8 using soldering processes and cover board 9, the bottom of the lithium battery ontology 1
Portion is equipped with insulation board 12.
As a preferred technical solution in the present embodiment, the metallized ceramic ring 8 is by ceramics 13 and molybdenum manganese Metal
Layer 14 forms, and described ceramic 13 structures in a ring, size is identical as 7 cross section size of pole, carries out through high-temperature process surface
Metallization, makes its surface be covered with one layer of molybdenum manganese Metal layer 14, forms the metallized ceramic ring 8, by first by ceramic 13 gold medals
Categoryization facilitates the welding of next step metallized ceramic ring 8, and the lithium battery body interior is respectively equipped with pole 7, electricity from inside to outside
Solution liquid 6, anode 15, diaphragm plate 16, cathode 17, buffer layer 20 and lithium battery casing 2, the bottom of the lithium battery ontology 1 are equipped with
Lithium battery interior is wrapped by lithium battery casing 2, is played a protective role by insulation board 12, the diaphragm plate 16 be polyethylene,
The single layer of the compositions such as polypropylene or micro- porous membrane of multilayer, punctured resistance with higher play hot safety effect,
The electrolyte 6 is non-aqueous electrolytic solution, is by propylene carbonate ester, ethylene carbonate, dimethyl carbonate, carbovinate
The mixture of the unitary of the compositions such as ester, methyl ethyl carbonate, binary or ternary has better electric conductivity, the cover board 9
Surrounding side and lithium battery casing 2 by metal be welded to connect fix, make cover board 9 more fix, improve sealing structure
Reliability and the service life, PTC constrictor 19 is equipped between the protection board 10 and cover board 9, and is fixedly connected with protection board 10, is led to
Overprotection plate 10 and PTC constrictor 19 play overcharge, over-discharge, overcurrent safeguard function, described positive 15 with the contact of electrolyte 6
Surface is equipped with carbon-coated aluminum foils layer 18, can effectively improve pole piece adhesive force by carbon-coated aluminum foils layer 18, reduce making for binder
Dosage is also obviously improved simultaneously for the electrical property of battery, and the buffer layer 20 is made of ABS/PC alloy resin material,
With good heat resistance, anti-flammability and damping effect.
It should be noted that a kind of sealing structure of lithium battery group of the utility model is in use, firstly the need of to entire lithium
The sealing structure of battery pack has the understanding in a structure, could be more efficiently carried out when in use using passing through high temperature first
Processing method metallizes 13 surfaces of ceramics, so that ceramic 13 surfaces is covered upper one layer of molybdenum manganese Metal layer 14, then again in gold
One layer of solder is coated on 8 surface of categoryization ceramic ring, and cover board 9, metallized ceramic ring 8, pole 7 are superimposed in order, is put into atmosphere
In furnace, 600 DEG C are heated to, keeps the temperature 3 minutes, is taken out after cooling, then put it on lithium battery and be welded to form with lithium battery casing 2
The sealing structure of complete lithium battery, the lithium battery group is used as sealing material using ceramics 13, realizes the connection of pole 7 and cover board 9
Leakproofness, more corrosion resistance and high temperature resistance collectively constitute entire sealing structure with other sealants, wherein buffer layer
20 are made of ABS/PC alloy resin material, have good heat resistance, toughness, impact strength, intensity anti-flammability, processability,
Apparent mass and low-density, so that the sealing structure leakproofness of lithium battery is stronger.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for
For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this
In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims
All changes are embraced therein.It should not treat any reference in the claims as limiting related right
It is required that.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of sealing structure of lithium battery group, including lithium battery ontology (1), it is characterised in that: the lithium battery ontology (1) by
Lithium battery casing (2), copper alloy pole (3), aluminium alloy pole (4), sealant (5) and electrolyte (6) composition, the lithium battery
The upper end of ontology (1) is equipped with copper alloy pole (3) and aluminium alloy pole (4), the copper alloy pole (3) and aluminium alloy pole
(4) downside is equipped with sealant (5), and electrolyte (6), the sealant (5) and pole (7) are equipped on the downside of the sealant (5)
Between be equipped with metallized ceramic ring (8), the sealant (5) includes cover board (9), buffer layer (20), protection board (10), water absorption pad
Piece (11) and insulation board (12), the pole (7) are connected by metallized ceramic ring (8) using soldering processes and cover board (9) welding
It connects, the bottom of the lithium battery ontology (1) is equipped with insulation board (12).
2. a kind of sealing structure of lithium battery group according to claim 1, it is characterised in that: the metallized ceramic ring
(8) it is made of ceramic (13) and molybdenum manganese Metal layer (14), structure, size and pole (7) are transversal in a ring for the ceramics (13)
Face size is identical, metallizes through high-temperature process surface, its surface is made to be covered with one layer of molybdenum manganese Metal layer (14), is formed described
Metallized ceramic ring (8).
3. a kind of sealing structure of lithium battery group according to claim 1, it is characterised in that: the lithium battery ontology (1)
Inside is respectively equipped with pole (7), electrolyte (6), positive (15), diaphragm plate (16), cathode (17), buffer layer (20) from inside to outside
With lithium battery casing (2).
4. a kind of sealing structure of lithium battery group according to claim 3, it is characterised in that: the diaphragm plate (16) is single
Micro- porous membrane of layer or multilayer.
5. a kind of sealing structure of lithium battery group according to claim 1, it is characterised in that: the surrounding of the cover board (9)
Side and lithium battery casing (2) are welded to connect by metal to be fixed.
6. a kind of sealing structure of lithium battery group according to claim 1, it is characterised in that: the protection board (10) with subtract
It shakes and is equipped with PTC constrictor (19) between layer (20), and be fixedly connected with protection board (10).
7. a kind of sealing structure of lithium battery group according to claim 3, it is characterised in that: the anode (15) and electrolysis
The contact surface of liquid (6) is equipped with carbon-coated aluminum foils layer (18).
8. a kind of sealing structure of lithium battery group according to claim 3, it is characterised in that: the buffer layer (20) uses
ABS/PC alloy resin material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820804059.XU CN208608233U (en) | 2018-05-28 | 2018-05-28 | A kind of sealing structure of lithium battery group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820804059.XU CN208608233U (en) | 2018-05-28 | 2018-05-28 | A kind of sealing structure of lithium battery group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208608233U true CN208608233U (en) | 2019-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820804059.XU Expired - Fee Related CN208608233U (en) | 2018-05-28 | 2018-05-28 | A kind of sealing structure of lithium battery group |
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| Country | Link |
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| CN (1) | CN208608233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447534A (en) * | 2022-01-28 | 2022-05-06 | 天津市捷威动力工业有限公司 | Battery top cap and battery |
-
2018
- 2018-05-28 CN CN201820804059.XU patent/CN208608233U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447534A (en) * | 2022-01-28 | 2022-05-06 | 天津市捷威动力工业有限公司 | Battery top cap and battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190318 Address after: 553000 No. 4 Building, Block 5, Lianghe New District, Lianghe Township Street, Panzhou City, Guizhou Province Patentee after: Guizhou Guoxia New Energy Technology Co., Ltd. Address before: 410000 Room G0062, Headquarters Building, Changsha Zhongdian Software Park Co., Ltd., 39 Jianshan Road, Changsha High-tech Development Zone, Hunan Province Patentee before: Changsha Asian Smart Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190315 Termination date: 20210528 |