CN208014758U - A kind of glass seal packs of cover plate of power battery and pole - Google Patents
A kind of glass seal packs of cover plate of power battery and pole Download PDFInfo
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- CN208014758U CN208014758U CN201820156395.8U CN201820156395U CN208014758U CN 208014758 U CN208014758 U CN 208014758U CN 201820156395 U CN201820156395 U CN 201820156395U CN 208014758 U CN208014758 U CN 208014758U
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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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Abstract
The utility model discloses the glass seal packs of a kind of cover plate of power battery and pole, including metal cover board, glass composite material, resin and metal pole, the glass composite material includes glass matrix and second phase particles；It is connected with metal pole on the inside of the glass composite material；It is connected with metal cover board on the outside of the glass composite material；The resin is covered on glass composite material；One section of first circular arc that the oriented glass composite material side in bottom that the metal cover board is connected with glass composite material is shunk；The part that the metal pole is connected with glass composite material is one section of second circular arc in sectional view；One layer of first anode oxide layer is formd on the interface that the metal cover board is connected with glass composite material, on metal cover board.The structure of the cover plate of power battery of the utility model and the glass seal packs of pole is simple, and the technological process of production method is uncomplicated, and whole production cost is relatively low.
Description
Technical field
The utility model is related to a kind of technical field of lithium ion for electric vehicle, more particularly to a kind of power battery
The glass seal packs of cover board and pole.
Background technology
With the gradual universal of lithium-ion electric electrical automobile and in automotive field, proportion is increasing, lithium-ion electric
The safety in pond itself and durability are also therefore by increasing attention.Lithium ion battery is completed charge and discharge process and is had to
Carried out in an anaerobic and anhydrous environment, thus lithium ion battery be completed by each component after need to be sealed encapsulation.
Sealing-in between lithium ion battery metal pole and metal shell at present is mainly using the sealing ring of plastic material or pottery
The mode of porcelain metallization sealing-in.On the other hand, the advantage due to aluminium alloy in terms of lightweight and high conductivity, present lithium ion
Metal battery case and pole are more prone to use aluminum alloy material.The product of current aluminium alloy sealing-in functionization on the market is still
It is confined in plastics or ceramic metallization sealing-in.And the glass sealing component design of some existing aluminium alloys still exists centainly
The shortcomings that, and specific method is not also reported or related patents etc..
Plastic seal ring sealing-in there are it is easy to aging and intolerant to extraneous alternation physical field (temperature, stress and vibration) influence etc. lack
The coefficient of thermal expansion of point, especially plastics is much larger than the battery case of aluminum alloy material, this will cause it long with ambient temperature
The defects of can not ensureing effective leakproofness after phase cold and hot variation, and then solution leakage, battery performance is caused to decline, therefore mould
Material sealing-in has been manifested by the trend of market.The sealing-in mode of ceramic metallization has preferable air-tightness and length due to it
Phase use reliability is used by some large-sized battery producers, but its process for integrally manufacturing complexity is cumbersome, with high costs.
And the glass sealing scheme announced is mostly complicated, and dependency structure design is unfavorable for promoting the mechanical resistant of entire closure
Impact capacity and global reliability.
Patent CN20479338U forms short circuit in order to avoid aluminum alloy casing and dynode column, under glass sealing body
Side adds a ceramic gasket, although can effectively avoid short circuit, system is significantly thermally expanded between ceramic material and glass
Number difference will cause to generate more crack due to thermal stress on glass and ceramic contact surface, and then influence the long-term of entire glass sealing part
In addition reliability additionally increases a ceramic gasket and has also accordingly increased cost.And there is no glass is relevant to retouch in this patent
It states.
Patent CN205004363U has structure design similar with patent CN20479338U, only the volume on potsherd
The outer flow for increasing ceramic metallization, on the one hand increases the complexity of entire technique, on the other hand will lead to cost
Continue to rise.And there is no the relevant description of glass in this patent.
A kind of glass sealing aluminium alloy structure is disclosed in patent CN104752646A, but glass has after high temperature melting
Preferable mobility, the structure announced will be unable to ensure that glass forms determining shape, and then form effective sealing-in.Separately
In the structure of its outer design, glass has multiple right angle corners, when by external impacts, will form stress collection around the corner
In, easily glass is caused to crack, and then sealing-in is caused to be failed.There is no the relevant description of glass in this patent.
Invention content
In view of above-mentioned all kinds of technologies or the deficiency of utility model, in order to solve existing glass sealing structure design it is unreasonable or
Person's structure design excessively complexity causes the higher problem of cost, the purpose of this utility model to be to provide a kind of reliably for aluminium conjunction
The glass seal packs of the cover plate of power battery and pole of sealing-in between gold or between aluminium copper.
In order to solve the above technical problems, technical solution used by the utility model is as follows：
A kind of glass seal packs of cover plate of power battery and pole, including metal cover board, glass composite material, resin and
Metal pole, the glass composite material include glass matrix and second phase particles；
It is connected with metal pole on the inside of the glass composite material；The glass composite material outside and metal cover board phase
Even；The resin is covered on glass composite material；
The oriented glass composite material side in bottom that the metal cover board is connected with glass composite material shrink one section the
One circular arc；The part that the metal pole is connected with glass composite material is one section of second circular arc in sectional view；The metal
One layer of first anode oxide layer is formd on the interface that cover board is connected with glass composite material, on metal cover board；
Preferably, the metal pole can be fine aluminium, aluminium alloy or pure copper material, when the metal pole material is
When fine aluminium or aluminium alloy, on the interface that is connected with glass composite material, one layer of anode is formd on pure aluminum or aluminum alloy pole
Oxide layer；
Preferably, the metal pole material is fine copper, on the interface that the metal pole is connected with glass composite material,
Oxide layer is formd on fine copper pole.
Preferably, the metal cover board is fine aluminium or aluminium alloy；
Preferably, the resin is epoxy resin；
Preferably, the arc radius s that the metal cover board is shunk to glass composite material side is 0.4-0.8mm.
Preferably, the metal pole and glass composite material connected component are one section of circular arc, and angle Q is 20-30 °.
Preferably, the height E of glass composite material is 2-3mm.
Preferably, the second phase particles are selected from titanium oxide, partially stabilized zirconium oxide, aluminium oxide, titanium carbide or nitridation
One or more of titanium.
Compared with prior art, the utility model has the advantages that：
1, the structure of the glass seal packs of the cover plate of power battery and pole of the utility model is simple, and production method
Technological process is uncomplicated, and whole production cost is relatively low.As a result of glass composite material as aluminium alloy and aluminium alloy, aluminium
The slip of the sealing material of alloy and pure copper material, the seal assembly of the utility model is relatively low, and glass composite material is resistance to
Aging ability is stronger.
2, the utility model adds second phase particles in glass matrix, the fracture strength of glass composite material entirety and
Cold-resistant thermal cycling capability is stronger.There is anodic oxidation in the utility model between glass composite material and metal cover board, metal pole
Layer or oxide layer, enhance the binding force between glass composite material and metal cover board, metal pole, and then enhance entire close
The ability and the airtight reliability of sealing-in of sealing assembly mechanical resistant impact.
3, the utility model introduces suitable radian and special metal pole structure design on metal cover board, simply
And additional gasket design is effectively eliminated, and the stress concentration of entire seal assembly can be avoided.
Description of the drawings
Fig. 1 is the glass seal packs schematic diagram of the utility model cover plate of power battery and aluminum or aluminum alloy pole.
Fig. 2 a and 2b are the utility model metal cover board section and schematic top plan view respectively.
Fig. 3 a and 3b are the utility model aluminum or aluminum alloy metal pole section and schematic top plan view respectively.
Fig. 4 a and 4b are the utility model glass composite material precast body section and schematic top plan view respectively.
Fig. 5 is 1 each component assembling schematic diagram of the utility model embodiment.
Fig. 6 show the X-ray powder diffraction pattern of glass matrix in embodiment 1.
Fig. 7 is the glass seal packs schematic diagram of cover plate of power battery and fine copper pole in the utility model embodiment 2.
1：Metal cover board 11：First circular arc
21：First anode oxide layer 22：Second plate oxide layer
3：Glass composite material 31：Glass matrix
32：Second phase particles 4：Resin
5：Aluminum or aluminum alloy pole 51：Second circular arc
6：Glass composite material precast body 7：Graphite base
8：Fine copper pole 80：Oxide layer
Specific implementation mode
The utility model is more specifically described with reference to embodiment and attached drawing, but the implementation of the utility model
Mode is without being limited thereto.
Embodiment 1
As shown in Figure 1, the glass seal packs of a kind of cover plate of power battery and pole of the utility model, structure are main
Including：Metal cover board 1, glass composite material 3, resin 4 and aluminum or aluminum alloy pole 5.The glass composite material 3 includes glass
Matrix 31 and second phase particles 32.3 inside of the glass composite material is connected with aluminum or aluminum alloy pole 5；The glass is compound
3 outside of material is connected with metal cover board 1.
The resin 4 is covered on glass composite material 3；The bottom that the metal cover board 1 is connected with glass composite material 3
One section of first circular arc 11 that portion is shunk oriented 3 side of glass composite material；The aluminum or aluminum alloy pole 5 and glass composite material
3 connected parts are one section of second circular arc 51 in sectional view.The interface that the metal cover board 1 is connected with glass composite material 3
On, one layer of first anode oxide layer 21 is formd on metal cover board 1.
On the interface that the aluminum or aluminum alloy pole 5 is connected with glass composite material 3, formed on aluminum or aluminum alloy pole 5
One layer of second plate oxide layer 22.
As shown in Figure 1, the height E of the glass composite material 3 is 2-3mm, the height F of resin 4 is 0.5-1.5mm.
As shown in Figure 2 a and 2 b, the oriented glass composite material in bottom which is connected with glass composite material 3
The radius s of one section of first circular arc 11 that 3 sides are shunk, first circular arc 11 is 0.4-0.8mm.
As shown in Figure 3a and Figure 3b shows, the part that the aluminum or aluminum alloy pole 5 is connected with glass composite material 3 is in sectional view
In be one section of second circular arc 51, the angle Q of second circular arc 51 is 20-30 °.
In addition, the production method that the utility model also provides the glass seal packs of a kind of cover plate of power battery and pole,
Include the following steps：
1. making glass composite material precast body
Based on mole accounting, glass matrix includes following component in glass composite material 3：
P2O559.6%, Li2O 8%, Na2O 10%, K2O 10%, B2O32%, Al2O32%, Fe2O30.5%,
ZnO 6%, Bi2O30.2%, MgO 0.5%, Cr2O30.1%, Y2O30.1%, La2O30.2%, Ce2O30.3%,
Co2O30.3%, Sb2O30.5%.
According to the ingredient of above-mentioned glass matrix, the raw material for weighing determining stoichiometric ratio is uniformly mixed, then will mix
Raw material be put into alumina crucible, then crucible is put into high temperature furnace, high temperature furnace is risen to the heating rate of 5-7 DEG C/min
1150 DEG C, and 2 hours are kept the temperature at 1150 DEG C, then directly the crucible for filling glass is taken out, by glass water quenching.Glass after water quenching
Glass uses ball mill ball milling after drying, obtains the glass powder that meso-position radius is 25 ± 2 μm.
Then the slurry of following weight percent is configured：
1-4wt% organic binders polyvinyl alcohol, 0.1-0.4wt% stearic acid release agents, the oxidation of 5wt% second phase particles
Titanium and 90.6-93.9wt% glass powders, this slurry prepare the ball-type pelletizing of glass composite material by centrifugal granulating, are granulated
Powder suppresses the glass composite material green body of correspondingly-sized by tablet press machine, and glass composite material green body is put into draft glue discharging furnace, row
Glue stove rises to 400 DEG C with the heating rate of 2-4 DEG C/min and stops 20 minutes, and subsequent draft glue discharging furnace is down to 10 DEG C of rate of temperature fall
Room temperature so far obtains the glass composite material precast body 6 of suitable dimension as shown in Figure 4 b.
The wherein described centrifugal granulating technology is known to those skilled in the art, multiple its role is to produce ball-type glass
Condensation material pelletizing.
Specifically, as shown in fig. 4 a, the outer diameter H of glass composite material precast body 6 is less than the through-hole of metal cover board 1 in Fig. 2
Internal diameter R, especially 0.05mm<R-H<0.2mm.The internal diameter h of glass composite material precast body 6 is more than aluminium or aluminium in Fig. 3 in Fig. 4 a
The outer diameter r of alloy pole, especially 0.05mm<h-r<0.2mm.
2. the anodic oxidation or pre-oxidation of metal cover board and metal pole
Metal cover board 1 selectively carries out anodized：First anode oxygen in the position of anodized such as Fig. 1
Change the position where layer 21, in particular, the thickness of first anode oxide layer 21 is 1-5 μm, the height of first anode oxide layer 21
It is identical as glass composite material 3.Aluminum or aluminum alloy metal pole 5 selectively carries out anodized：Anodized
Position such as Fig. 1 in position where second plate oxide layer 22, in particular, the thickness of second plate oxide layer 22 is 1-5 μm,
The height of second plate oxide layer 22 is identical as glass composite material 3.
The wherein described anodized technique is known to those skilled in the art, and its role is to produce certain thickness
The anodic oxide coating of degree.
3. the assembling and sealing-in of each component.
A, according to assembling mode as shown in Figure 5, aluminum or aluminum alloy metal pole 5 is put into graphite base 7 successively, and
Glass composite material precast body 6 is inserted in aluminum or aluminum alloy metal pole 5 afterwards, metal cover board 1 is then inserted in glass composite wood
Expect on precast body 6, i.e. assembling finishes.
B, the assembly of step a is put into high temperature furnace, high temperature furnace rises to 380 DEG C simultaneously with the heating rate of 5-7 DEG C/min
8 minutes are kept the temperature, then high temperature furnace rises to 580 DEG C with the heating rate of 4-6 DEG C/min and keeps the temperature 10-20 minutes, then high temperature furnace
It is down to 370 DEG C with the rate of temperature fall of 4-6 DEG C/min and keeps the temperature 5-15 minutes, final high temperature stove is with the rate of temperature fall of 5-8 DEG C/min
It is down to room temperature.
4, it is sprayed on the glass composite material 3 in the component for having sealed completion with epoxy resin 4, then at 50-80 DEG C
It is oven for curing.One layer of epoxy resin is coated on glass composite material 3 can effectively avoid unexpected sharp weapon collision further
Protective glass composite material 3.
Specifically, the height F after step 4 epoxy resin 4 cures is 0.5-1.5mm.
Fig. 6 show the X-ray powder diffraction pattern of glass matrix, and as can be seen from FIG. 6, the glass matrix of acquisition is typical case
Amorphous substance, no other impurities phase.
The glass seal packs of aluminum or aluminum alloy metal cover board 1 and pole that the present embodiment is completed are not leaked at 0.6MPa
Gas.
Embodiment 2
In addition to following characteristics, other features are same as Example 1 for this implementation.
In the present embodiment, the material of metal pole is fine copper material, specific as follows：
As shown in fig. 7, the glass seal packs of a kind of cover plate of power battery and pole, including metal cover board 1, glass are compound
Material 3, resin 4 and fine copper pole 8, the glass composite material 3 include glass matrix 31 and second phase particles 32；The glass
3 inside of composite material is connected with fine copper pole 8；3 outside of the glass composite material is connected with metal cover board 1；The resin 4 covers
It covers on glass composite material 3.
One section of oriented 3 side of the glass composite material contraction in bottom that the metal cover board 1 is connected with glass composite material 3
First circular arc 11.The part that the fine copper pole 8 is connected with glass composite material 3 is one section of second circular arc 51 in sectional view.
On the interface that the metal cover board 1 is connected with glass composite material 3, one layer of first sun is formd on metal cover board 1
Pole oxide layer 21.On the interface that the fine copper pole 8 is connected with glass composite material 3, one layer of oxidation is formd on fine copper pole 8
Layer 80.
A kind of the step of glass seal packs production method of cover plate of power battery and pole in addition to following characteristics, other with
Embodiment 1 is identical.
2. the anodic oxidation or pre-oxidation of metal cover board and metal pole
Metal cover board 1 selectively carries out anodized, as follows：
As shown in fig. 7, the position in the position of anodized such as Fig. 7 where first anode oxide layer 21, in particular,
The thickness of first anode oxide layer 21 is 1-5 μm, and the height of first anode oxide layer 21 is identical as glass composite material 3.Also not
The fine copper pole 8 of oxidation need to carry out pre-oxidation treatment, be as follows：
A, also unoxidized fine copper pole 8 it will be put into atmosphere sintering furnace and heat up with stove, heating rate is 5-7 DEG C/min,
It rises to 325-355 DEG C and keeps the temperature 10 minutes；
B, atmosphere sintering furnace is evacuated to 10 immediately at the end of heat preservation-4Pa is started simultaneously at and is cooled to room temperature, rate of temperature fall
For 8-10 DEG C/min.
4, first seal assembly is put into the dilute hydrochloric acid solution of 0.3-1mol/L and is cleaned by ultrasonic 5-15 minutes, it mainly will be pure
Do not removed by the oxide layer in 3 covering part of glass composite material on 8 surface of copper-base column；Seal assembly is put into deionized water again
It is cleaned by ultrasonic 5-15 minutes, is then dried in 70 DEG C of baking ovens.
The glass seal packs of aluminum or aluminum alloy cover board and fine copper pole that the present embodiment is completed are air tight at 0.6MPa.
Embodiment 3
The present embodiment and the difference of embodiment 1 are：Second phase particles in glass composite material 3 are titanium carbide；Sealing
Other other structures of component and manufacture craft process all same.
Embodiment 4
The present embodiment and the difference of embodiment 1 are：Second phase particles in glass composite material 3 are titanium nitride；Sealing
Other other structures of component and manufacture craft process all same.
Embodiment 5
The present embodiment and the difference of embodiment 1 are：Second phase particles in glass composite material 3 are partially stabilized
Zirconium oxide；Other other structures of seal assembly and manufacture craft process all same.
Embodiment 6
The present embodiment and the difference of embodiment 2 are：Second phase particles in glass composite material 3 are aluminium oxide；Sealing
Other other structures of component and manufacture craft process all same.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, therefore it is every without departing from the content of the technical scheme of the utility model, according to the technical essence of the utility model to implementing above
Any simple modification, equivalent change and modification made by example, are still within the scope of the technical solutions of the present invention.
Claims (6)
1. the glass seal packs of a kind of cover plate of power battery and pole, it is characterised in that：Including metal cover board, glass composite wood
Material, resin and metal pole；
It is connected with metal pole on the inside of the glass composite material；It is connected with metal cover board on the outside of the glass composite material；Institute
Resin is stated to be covered on glass composite material；
One section of first circle that the oriented glass composite material side in bottom that the metal cover board is connected with glass composite material is shunk
Arc；The part that the metal pole is connected with glass composite material is one section of second circular arc；The metal cover board and glass are compound
On the connected interface of material, one layer of first anode oxide layer is formd on metal cover board.
2. the glass seal packs of cover plate of power battery according to claim 1 and pole, it is characterised in that：
The metal pole is fine aluminium, aluminium alloy or pure copper material, the boundary that the metal pole is connected with glass composite material
On face, one layer of second plate oxide layer is formd on pure aluminum or aluminum alloy pole.
3. the glass seal packs of cover plate of power battery according to claim 1 and pole, it is characterised in that：The metal
Pole material is fine copper, and on the interface that the metal pole is connected with glass composite material, oxide layer is formd on fine copper pole.
4. the glass seal packs of cover plate of power battery according to claim 1 and pole, it is characterised in that：The metal
Cover board is fine aluminium or aluminium alloy；The resin is epoxy resin.
5. the glass seal packs of cover plate of power battery according to claim 1 and pole, it is characterised in that：The metal
The first arc radius s that cover board is shunk to glass composite material side is 0.4-0.8mm；The metal pole and glass composite material
Connected component is one section of second circular arc, and angle Q is 20-30 °.
6. the glass seal packs of cover plate of power battery according to claim 1 and pole, it is characterised in that：The glass
The height E of composite material is 2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820156395.8U CN208014758U (en) | 2018-01-30 | 2018-01-30 | A kind of glass seal packs of cover plate of power battery and pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820156395.8U CN208014758U (en) | 2018-01-30 | 2018-01-30 | A kind of glass seal packs of cover plate of power battery and pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208014758U true CN208014758U (en) | 2018-10-26 |
Family
ID=63884627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820156395.8U Active CN208014758U (en) | 2018-01-30 | 2018-01-30 | A kind of glass seal packs of cover plate of power battery and pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208014758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172704A (en) * | 2018-01-30 | 2018-06-15 | 中澳科创（深圳）新材料有限公司 | A kind of glass seal packs of cover plate of power battery and pole and preparation method thereof |
| CN111656556A (en) * | 2018-11-23 | 2020-09-11 | 株式会社大北制作所 | Housing member with terminal and method for manufacturing the same |
-
2018
- 2018-01-30 CN CN201820156395.8U patent/CN208014758U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172704A (en) * | 2018-01-30 | 2018-06-15 | 中澳科创（深圳）新材料有限公司 | A kind of glass seal packs of cover plate of power battery and pole and preparation method thereof |
| CN108172704B (en) * | 2018-01-30 | 2024-05-14 | 深圳中傲新瓷科技有限公司 | Glass sealing assembly of power battery cover plate and pole and manufacturing method thereof |
| CN111656556A (en) * | 2018-11-23 | 2020-09-11 | 株式会社大北制作所 | Housing member with terminal and method for manufacturing the same |
| CN111656556B (en) * | 2018-11-23 | 2021-10-22 | 株式会社大北制作所 | Housing member with terminal and method for manufacturing the same |
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Address after: 518107 plant 1207, zhongkono Digital Technology Industrial Park, No. 7 Road, east of Guangming high tech park, Tianliao community, Yutang street, Guangming District, Shenzhen, Guangdong Patentee after: Shenzhen Zhongao new porcelain Technology Co.,Ltd. Address before: 518106 room 701, 7 / F, building B, quanju Industrial Park, Shiwei village, Matian street, Guangming New District, Shenzhen, Guangdong Patentee before: SHENZHEN SIALOM ADVANCED MATERIALS Co.,Ltd. |
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