CN102651482B - Sealing component of battery, manufacturing method thereof and lithium ion battery - Google Patents
Sealing component of battery, manufacturing method thereof and lithium ion battery Download PDFInfo
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- CN102651482B CN102651482B CN201110046069.4A CN201110046069A CN102651482B CN 102651482 B CN102651482 B CN 102651482B CN 201110046069 A CN201110046069 A CN 201110046069A CN 102651482 B CN102651482 B CN 102651482B
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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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Abstract
The invention relates to a sealing component of a battery and a manufacturing method thereof. The sealing component comprises a ceramic substrate, a metal plate, a cover plate and a core column, wherein a through hole is formed in the ceramic substrate; the metal plate is connected to the upper end surface of the ceramic substrate; a perforation is formed in the metal plate; the cover plate is connected to the lower end surface of the ceramic substrate; a pass hole is formed in the cover plate; and the core column penetrates through the perforation, the through hole and the pass hole and is connected with the perforation. The invention also provides a lithium ion battery adopting the sealing component. The lithium ion battery comprises a shell with at least one opening end, wherein the sealing component is arranged at the opening end of the shell; a sealing space is formed between the sealing component and the shell; a pole core and an electrolyte are accommodated in the sealing space; the cover plate of the sealing component is connected with the shell; and the core column is connected with the pole core. The cover plate and the core column of the sealing component of the battery are connected through the ceramic substrate. The ceramic substrate has relatively high corrosion resistance. In addition, the whole sealing component is reliable in connection and good in sealing effect.
Description
Technical field
The present invention relates to the technical field of sealing technology of battery; Specifically, black box that the present invention relates to a kind of battery and preparation method thereof and a kind of lithium ion battery.
Background technology
In the sealing of existing lithium ion battery, the cover plate of black box and stem stem are mainly by vitreum sealing-in.Such as: CN2419690 discloses a kind of lid of lithium ion battery.Battery case cover plate and electrode draw core vitreum sealing; Battery case cover plate has liquid injection hole, the safe valve block sealing of liquid injection hole.The temperature coefficient that battery case cover plate, vitreum and electrode draw core is answered identical or close.The sealing of battery and the release of dangerous pressure can be guaranteed, thus improve efficiency and the security performance of lithium ion battery.
But at lithium ion battery Long-Time Service with after storing, the vitreum lower floor directly contacted with the electrolyte of lithium ion battery can be corroded.Such as: French Saft Groupe Sa carries out anticorrosive test by accelerated aging test method to vitreum, after black box and lithium ion battery body are assembled into lithium ion battery, place 7 days at 150 DEG C, found that vitreous surface is corroded, the air-tightness of black box reduces, and is less than 1.0 × 10
-7m
3pa/s.Producing this existing main cause is: lithium metal can go back the silicon dioxide in bare glass, and can constantly penetrate in vitreum, not only reduces the insulation property of glass, more can cause the leakage of lithium battery.At present, the external problems that solves is mainly through the not silica containing corrosion resistance insulating glass of exploitation, and the sealing temperature of this glass is higher, all very harsh to the requirement of instrument and supplies condition.In order to solve this technical problem, CN201397827 discloses a kind of sealing insulator for lithium batteries, comprise the upper cover that has through hole and intert at the upper stem stem covered by described through hole, vitreum is provided with in through hole, and by vitreum, sealing-in is carried out to upper cover and stem stem, be positioned at Vitrea below and be provided with fluorocarbon in through hole.Can not be corroded by available protecting vitreum by arranging fluorocarbon, thus avoid the leakage and the short circuit phenomenon that occur lithium battery, improve the useful life of lithium battery.
But, it is further noted that the Kovar(that current battery stem stem used mostly is 4J series can cut down) alloy, along with the progressively increase of battery capacity, the corresponding increase of the length of stem stem, diameter, because alloy has higher resistivity, can affect the normal work of battery.Therefore new technical scheme uses aluminium and copper material respectively as the material of the positive and negative electrode stem stem of battery, because both have low resistivity, significantly can reduce the actual resistance of stem stem.But, the fusing point of aluminium and copper is on the low side, be respectively 660 DEG C and 1083 DEG C, general Vitrea sealing temperature is then at about 1000 DEG C, thus, when adopting vitreum sealing-in aluminium stem stem, owing to needing to carry out sealing-in below the fusing point of aluminium, Vitrea sealing-in requirement cannot be met, be difficult to realize the sealing-in to aluminium stem stem; And when adopting vitreum sealing-in copper stem stem, also because of the fusing point close to copper, be difficult to ensure sealing-in quality.
Summary of the invention
The present invention is that the black box solving battery in prior art adopts vitreum to carry out sealing-in, the technical problem that corrosion resistance is poor, sealing-in is second-rate.
In order to solve the problems of the technologies described above, the invention provides a kind of black box of battery, comprising:
Ceramic substrate, it offers through hole;
Metallic plate, is connected to the upper surface of described ceramic substrate, it offers perforation;
Cover plate, is connected to the lower surface of described ceramic substrate, it offers via hole;
Stem stem, it is arranged in described perforation, through hole, via hole, and is connected with described perforation.
Preferably, leave the first gap between described stem stem and described through hole, between stem stem and described via hole, leave the second gap, in described first gap and the second gap, be filled with obturator.
Wherein, the black box of described battery is the black box of battery cathode, and described metallic plate is copper coin or copper alloy plate, and described stem stem is copper post or copper alloy post.
Wherein, the black box of described battery is the black box of anode, and described metallic plate is aluminium sheet or aluminium alloy plate, and described stem stem is aluminium post or aluminium alloy column.
The invention provides the manufacture method of the black box of above-mentioned battery cathode, comprise the steps:
Step 1, employing are directly covered copper method and are connected with ceramic substrate by metallic plate;
Step 2, cover plate to be welded mutually with ceramic substrate;
Step 3, stem stem passed through the via hole of the perforation of metallic plate, the through hole of ceramic substrate and cover plate, then stem stem is welded mutually with the perforation of metallic plate.
Present invention also offers the manufacture method of the black box of above-mentioned anode, comprise the steps:
Step 1, metallic plate, cover plate are welded in respectively the upper and lower end face of ceramic substrate;
Step 2, stem stem passed through the via hole of the perforation of metallic plate, the through hole of ceramic substrate and cover plate, then stem stem is welded mutually with the perforation of metallic plate.
Invention further provides a kind of lithium ion battery, comprise: the housing of at least one end opening, be sealed in the black box of the openend of described housing, seal cavity is formed between described housing and black box, pole piece and electrolyte is contained in described seal cavity, described black box adopts the black box of battery as above, wherein, the cover plate of the black box of described battery is connected with housing, and the stem stem of the black box of described battery is connected with described pole piece.
In the black box of battery of the present invention, being connected by arranging ceramic substrate between cover plate with stem stem, making to keep between housing and stem stem insulating and forming seal; Wherein, stem stem is electrically connected with the pole piece of battery as the electrode of battery, and stem stem and metallic plate are welded mutually and be connected with ceramic substrate by metallic plate; Cover plate then directly welds with ceramic substrate mutually, and for being welded on the housing of battery, realizes the connection of black box of the present invention and battery main body; The connection of whole black box is reliable, further, ceramic substrate has stronger corrosion resistance, good insulation property, thus the good sealing effect of whole black box, avoid the phenomenon of leakage of lithium ion battery, effectively can improve the useful life of lithium ion battery.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the black box of the battery of one embodiment of the invention.
Fig. 2 is the schematic diagram that obturator inserted by the black box of the battery shown in Fig. 1.
Fig. 3 is the schematic diagram of the black box of the battery of another embodiment of the present invention.
Embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
With reference to the accompanying drawings the specific embodiment of the present invention is described in detail.Herein, same reference numerals represents same composition part.And, should be appreciated that in describing the invention, " on ", the relative bearing term such as D score, represent each parts in black box and the relative position of part in the cutaway view of the black box shown in Fig. 1-3 thereof, so that be described each parts and part thereof; But and be not used in actual installation in lithium ion battery of these parts and part thereof and position relationship limited, it may be not identical with actual installation situation, is not limited to scope of the present invention.
The black box of battery of the present invention is used for the sealing of battery, more for the sealing of lithium ion battery, especially high-power lithium ion battery, such as: the sealing of lithium-ion-power cell, lithium-ion energy storage battery.Skilled in the art will recognize that lithium ion battery mainly comprises: the housing of at least one end opening, the electrolyte being positioned over the pole piece in housing and being contained in housing.In order to avoid spilling of electrolyte, the openend of black box to housing is adopted to seal.Wherein, described housing is generally aluminum hull or box hat, for placing pole piece and holding electrolyte, its at least one end opening.Described pole piece is formed by positive plate, barrier film, negative plate successively stacked or winding, and the structure of pole piece and manufacture method, by existing techniques in realizing, do not repeat at this.
Improvements of the present utility model are mainly black box, as shown in Figures 1 and 2, the black box of the battery cathode of first embodiment of the invention comprises: ceramic substrate 1, stem stem 2, metallic plate 3, cover plate 4, the lower surface that metallic plate 3 is connected to the upper surface of described ceramic substrate 1, cover plate 4 is connected to described ceramic substrate 1, ceramic substrate 1 offers through hole 11, metallic plate 3 offers perforation 31, cover plate 4 offers via hole 41, stem stem 2 is arranged in described perforation 11, through hole 31, via hole 41, and is connected with described perforation 11.
Specifically, the thickness of described cover plate 4 is 0.1-1.5mm, and in the preferred case, thickness is 0.5-1mm.Described cover plate 4 is aluminium sheet or aluminium alloy plate, certainly, cover plate 4 can also be other metallic plate of material identical with housing, such as: steel plate, for being connected with the housing of lithium ion battery (general realize being connected by welding), to realize being tightly connected of whole black box of the present invention and lithium-ion electric tank main body.The length and width size of cover plate 4 is preferably greater than the length and width size of described ceramic substrate, metallic plate, is conducive to cover plate 4 and welds mutually with the housing of lithium ion battery, to make the openend of black box seal casinghousing; In the present embodiment, ceramic substrate, metallic plate length and width are of a size of 30 mm × 30mm, and the length and width of cover plate are of a size of 31 mm × 31mm.Described via hole 41 is located at the middle part of cover plate 4, the aperture of via hole 41 should be able to make stem stem 2 through and make to form gap 42 cover plate 4 and stem stem 2; Under preferable case, the aperture of described via hole 41 equals the aperture of through hole 11, and 0.5-2mm larger than the diameter of described stem stem 2, make to form gap 42 between described via hole 41 and described stem stem 2, cover plate 4 is avoided to contact with stem stem 2, in the present embodiment, the diameter of described stem stem 2 is 9mm, and the aperture of described via hole 41 is 10mm.Because stem stem 2 is used as a pole of battery, and housing generally can be used as another pole of battery, cover plate 4 is connected with housing, thus need to ensure that stem stem 2 insulate with cover plate 4 phase, in the present invention, by the setting of ceramic substrate 1, stem stem 2 is connected with cover plate 4 and ensures the insulation between them.
The thickness of described metallic plate 3 is 0.1-1.5mm, and in the preferred case, thickness is 0.5-1mm.The middle part of metallic plate 3 is located in described perforation 31, and aperture and the described stem stem 2 of described perforation 31 are suitable, is connected with perforation 31 to make described stem stem 2; In the present embodiment, described stem stem 2 is provided with boss 21, so that the welding of stem stem 2 and metallic plate 3, described perforation 31 is arranged corresponding to described boss 21, and described boss 21 is placed in described perforation 31 and is connected with described perforation 31.Described metallic plate 3 is for connecting stem stem 2 and ceramic substrate 1, and when black box is the black box of battery cathode, metallic plate 3 is copper coin or copper alloy plate, can be used as negative pole lead-out tablet, external power consumption equipment.In the present embodiment, weld layer 6 is provided with between the hole wall of the perforation 31 of described metallic plate 3 and described stem stem 2, the perforation 31 of described metallic plate 3 is formed by physical weld method by described weld layer 6(with described stem stem 2) be connected, the manufacture craft detailed description that physical weld method is specific as follows.
Described ceramic substrate 1 is the one in aluminum oxide substrate, zirconia substrate, aluminium nitride substrate, boron nitride substrate, silicon nitride board, aluminium oxide and zirconic composite base plate, preferential oxidation aluminium base, aluminium oxide and zirconic composite base plate, so that employing is directly covered, copper method is deposited connects copper coin or copper alloy plate.The thickness of ceramic substrate 1 is 0.3-5mm, and in the preferred case, thickness is 1-2mm.Stem stem 2 for connection metal plate 3 and cover plate 4, and then is fixed on cover plate 4 by described ceramic substrate 1, and ensures the insulation between stem stem 2 and cover plate 4.The decay resistance of ceramic substrate 1 is very good, and impact strength, thermal shock resistance are better than vitreum, and make the structure of black box more stable, sealing effectiveness is better.In the present embodiment, scaling powder layer 5 is provided with between described ceramic substrate 1 and described cover plate 4, and be connected by described scaling powder layer (being formed by soldering processes), described ceramic substrate 1 can be connected by directly covering copper method with described metallic plate 3, and manufacture craft specific as follows describes in detail.
The through hole 11 of ceramic substrate 1 is located at the middle part of ceramic substrate 1, the aperture of through hole 11 is larger than the diameter of stem stem 2, preferably, the aperture of described through hole 11 is equal with the aperture of via hole 41,0.5-2mm larger than the diameter of stem stem 2, makes to form gap 12 between described through hole 11 and described stem stem 2, to avoid ceramic substrate 1 expanded by heating, in the present embodiment, the diameter of described stem stem 2 is 9mm, and the aperture of described through hole 11 is 10mm.As shown in Figure 2, under the preferable case of the present embodiment, be filled with obturator 7 in described gap 42 and gap 12, make the structure of whole black box more reliable, sealing property is better.Described obturator 7 preferred resin, described resin is selected from and stem stem can be made to realize effectively bonding resin with ceramic substrate, cover plate, and the selection about resin is well known for the person skilled in the art, such as: can select epoxy resin or silicone resin.
The stem stem that described stem stem 2 can adopt this area common, in the present embodiment, the diameter of described stem stem 2 is 9 mm ± 0.5 mm, the size of other parts in black box, such as: the large I of through hole 11, via hole 41 is determined according to the diameter of stem stem 2.Metallic plate 3 is exposed in the upper end of stem stem, can be used as negative pole exit, external power consumption equipment; Cover plate 4 is exposed in its lower end, for being electrically connected with the pole piece of lithium ion battery, to realize the inside and outside electrical connection of lithium ion battery.In the present embodiment, because black box is the black box of battery cathode, thus, described stem stem 2 is copper post or copper alloy post.
As shown in Figure 3, be the schematic diagram of the black box of the anode of the second embodiment of the present invention; The structure basic simlarity of the black box of the black box of the anode of the second embodiment and the battery cathode of the first embodiment, difference part is, described metallic plate 3 ' is aluminium sheet or aluminium alloy plate, and described stem stem 2 ' is aluminium post or aluminium alloy column.Thus, be also provided with scaling powder layer 5 between described ceramic substrate 1 and described metallic plate 3 ', and formed by soldering processes by described scaling powder layer 5() be connected, the manufacture craft below the difference on concrete technology is visible describes in detail.
The invention provides the manufacture method of the black box of the battery cathode of above-mentioned first embodiment, comprise the steps:
Step 1, employing are directly covered copper method (DBC) and are connected with ceramic substrate by metallic plate; In the present embodiment, due to the making of the black box for battery cathode, thus, described metallic plate is copper coin or copper alloy plate, can adopt directly to cover copper method and be connected with ceramic substrate by metallic plate, describedly directly covers copper method for conventionally known to one of skill in the art.In this step, preferably, the described temperature directly covering copper method is 1063-1084 DEG C, and atmosphere is the nitrogen atmosphere containing 0-500ppm oxygen.
Step 2, cover plate to be welded mutually with ceramic substrate; In this step, described cover plate and ceramic substrate adopt soldering processes to weld mutually, and described soldering processes are for realizing the connection between metal and pottery, and its processing step and parameter have also been conventionally known to one of skill in the art.In the present invention, the solder that soldering processes adopt can be the solder for welding ceramics and aluminium such as Al-Si alloy, Al-Mg alloy, Al-Si-Mg alloy, in the preferred case, wherein, the content of Si is the content of 0-12wt%, Mg is 0-12wt%, surplus is Al, makes welding effect better; The temperature of soldering processes is 570-660 DEG C, and atmosphere is vacuum or inert gas atmosphere, and described inert gas atmosphere is preferably argon gas atmosphere; After soldering, form scaling powder layer between described cover plate and ceramic substrate, cover plate is connected by described scaling powder layer with ceramic substrate.
Step 3, stem stem passed through the via hole of the perforation of metallic plate, the through hole of ceramic substrate and cover plate, then stem stem is welded mutually with the perforation of metallic plate.In this step, described stem stem adopts physical weld method to be welded in the perforation of metallic plate, described physical weld method choice electric resistance welding, Laser Welding or ultrasonic bond, for realizing welding between metal with metal, the processing step of electric resistance welding, Laser Welding or ultrasonic bond and parameter have been conventionally known to one of skill in the art, do not repeat at this; After physical weld, be formed with weld layer between the perforation of described metallic plate and described stem stem, the perforation of described metallic plate is connected by described weld layer with described stem stem.
Preferably, the manufacture method of the black box of described battery cathode also comprises: insert obturator in step 4, the first gap between stem stem and through hole, the second gap between stem stem and via hole, by inserting described obturator, make the connection of whole black box more firm, sealing property is better.
As from the foregoing, ceramic substrate is adopted to realize the connection of stem stem and cover plate, when black box is the black box of battery cathode, the connection of stem stem and ceramic substrate is by being connected to metallic plate (copper coin or copper alloy plate) by stem stem, again metallic plate is connected with ceramic substrate and fetches realization, the connection of copper coin or copper alloy plate and ceramic substrate can adopt directly to be covered copper method to realize, and has higher bond strength; In addition, cover plate can adopt soldering processes with welding of ceramic substrate, and technique is simple, and Welding Structure is firm; It is worth mentioning that, the order of above-mentioned preparation method sorts according to mounting means and reaction temperature, such as: because directly cover the temperature of deposited jointing temp higher than soldering processes of copper method, thus, metallic plate and ceramic substrate deposited connects to be needed to carry out before the welding of cover plate and ceramic substrate; Again such as: because stem stem each plate install terminate after carry out installing easier again, thus erection sequence is rear.
The invention provides the manufacture method of the black box of the anode of above-mentioned second embodiment, comprise the steps:
Step 1, metallic plate, cover plate are welded in respectively the upper and lower end face of ceramic substrate; In the present embodiment, due to the making of the black box for anode, thus, described metallic plate is aluminium sheet or aluminium alloy plate, soldering processes can be adopted metallic plate, cover plate to be connected with ceramic substrate simultaneously, described soldering processes are for realizing the connection between metal and pottery, and its processing step and parameter have also been conventionally known to one of skill in the art.In the present invention, the solder that soldering processes adopt can be the solder for welding ceramics and aluminium such as Al-Si alloy, Al-Mg alloy, Al-Si-Mg alloy, preferably, the solder that soldering processes adopt is Al-Si-Mg alloy, wherein, the content of Si is the content of 0-12wt%, Mg is 0-12wt%, surplus is Al, makes welding effect better; The temperature of soldering processes is 570-660 DEG C, and atmosphere is vacuum or inert gas atmosphere, and described inert gas atmosphere is preferably argon gas atmosphere; After soldering, at described metallic plate, be all formed with scaling powder layer between cover plate and ceramic substrate, metallic plate, cover plate are connected by described scaling powder layer with ceramic substrate.
Step 2, stem stem passed through the via hole of the perforation of metallic plate, the through hole of ceramic substrate and cover plate, then stem stem is welded mutually with the perforation of metallic plate.In this step, described stem stem adopts physical weld method to be welded in the perforation of metallic plate, described physical weld method choice electric resistance welding, Laser Welding or ultrasonic bond, for realizing welding between metal with metal, the processing step of electric resistance welding, Laser Welding or ultrasonic bond and parameter have been conventionally known to one of skill in the art, do not repeat at this; After physical weld, be formed with weld layer between the perforation of described metallic plate and described stem stem, the perforation of described metallic plate is connected by described weld layer with described stem stem.
Preferably, the manufacture method of the black box of described battery cathode also comprises: insert obturator in step 3, the first gap between stem stem and through hole, the second gap between stem stem and via hole, by inserting described obturator, make the connection of whole black box more firm, sealing property is better.
As from the foregoing, ceramic substrate is adopted to realize the connection of stem stem and cover plate, when black box is the black box of anode, the connection of stem stem and ceramic substrate realizes by metallic plate (aluminium sheet or aluminium alloy plate), metallic plate, cover plate can adopt soldering processes with welding of ceramic substrate, metallic plate can adopt physical weld method with welding of stem stem, and technique is simple, and Welding Structure is firm.
When assembling whole lithium ion battery, such as: using by the housing of lithium ion battery as positive pole, be example using the stem stem of black box as negative pole, black box is the black box of battery cathode, the one end open of housing, pole piece is positioned in housing, and (or carry out fluid injection subsequently through the liquid injection hole on cover plate to fluid injection in housing, known to those skilled in the art), then black box is installed on this openend of housing, in this process, the cover plate of black box is welded mutually with housing, and the stem stem of black box is connected (specifically with pole piece, the positive plate of pole piece is connected with housing by anode ear, the negative plate of pole piece is connected with stem stem by negative electrode lug, concrete structure is by existing techniques in realizing), after installation, seal cavity is formed between black box and housing, pole piece and electrolyte is contained in sealing space, housing and stem stem are respectively as the two poles of the earth of lithium ion battery, can external power consumption equipment.
Again such as: with the equal opening in the two ends of housing, respectively black box is installed, wherein a black box is the black box of anode, and the black box that another black box is battery cathode is example, these two black boies are installed on respectively two openends of housing, in the process, the cover plate of these two black boies is welded mutually with housing, and the stem stem of these two black boies is connected (specifically with pole piece, the positive plate of pole piece is connected by the stem stem of anode ear with the black box of anode, the negative plate of pole piece is connected by the stem stem of negative electrode lug with the black box of battery cathode, concrete structure is by existing techniques in realizing), after installation, these two form seal cavity between black box and housing, pole piece and electrolyte is contained in sealing space, the stem stem of these two black boies is respectively as the two poles of the earth of lithium ion battery, can external power consumption equipment.
The black box of battery of the present invention has following characteristics: in the black box of battery of the present invention, is connected between cover plate with stem stem by arranging ceramic substrate, makes to keep between housing and stem stem insulating and forming seal; Wherein, stem stem is electrically connected with the pole piece of battery as the electrode of battery, and stem stem and metallic plate are welded mutually and be connected with ceramic substrate by metallic plate; Cover plate then directly welds with ceramic substrate mutually, and for being welded on the housing of battery, realizes the connection of black box of the present invention and battery main body; The connection of whole black box is reliable, further, ceramic substrate has stronger corrosion resistance, good insulation property, thus the good sealing effect of whole black box, avoid the phenomenon of leakage of lithium ion battery, effectively can improve the useful life of lithium ion battery.Further, cover plate, be provided with gap and be filled with obturator between ceramic substrate and stem stem in gap, structure is more reliable, sealing effectiveness is better.
Those skilled in the art easily know; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.Protection scope of the present invention is determined by claims.
Claims (17)
1. a black box for battery, is characterized in that, comprising:
Ceramic substrate, it offers through hole;
Metallic plate, is connected to the upper surface of described ceramic substrate, it offers perforation;
Cover plate, is connected to the lower surface of described ceramic substrate, it offers via hole;
Stem stem, it is arranged in described perforation, through hole, via hole, and is connected with described perforation;
Described stem stem is provided with boss, and described boss is connected with the perforation of described metallic plate.
2. the black box of battery according to claim 1, is characterized in that, metallic plate is exposed in the upper end of described stem stem, and cover plate is exposed in lower end.
3. the black box of battery according to claim 1, it is characterized in that, described ceramic substrate is the one in aluminum oxide substrate, zirconia substrate, aluminium nitride substrate, boron nitride substrate, silicon nitride board, aluminium oxide and zirconic composite base plate, the thickness of ceramic substrate is 0.3-5mm, described through hole is located at the middle part of ceramic substrate, the aperture 0.5-2mm larger than the diameter of stem stem of through hole;
The thickness of described metallic plate is 0.1-1.5mm, and the middle part of metallic plate is located in described perforation;
Described cover plate is aluminium sheet or aluminium alloy plate, and the length and width size of cover plate is greater than the length and width size of described ceramic substrate, metallic plate, and its thickness is 0.1-1.5mm, and described via hole is located at the middle part of cover plate, and the aperture of via hole equals the aperture of described through hole.
4. the black box of battery according to claim 1, is characterized in that, leaves the first gap, leaves the second gap between stem stem and described via hole between described stem stem and described through hole, is filled with obturator in described first gap and the second gap.
5. the black box of battery according to claim 4, is characterized in that, described obturator is resin.
6. the black box of the battery according to claim 1-5 any one, is characterized in that, the black box of described battery is the black box of battery cathode, and described metallic plate is copper coin or copper alloy plate, and described stem stem is copper post or copper alloy post.
7. the black box of the battery according to claim 1-5 any one, is characterized in that, the black box of described battery is the black box of anode, and described metallic plate is aluminium sheet or aluminium alloy plate, and described stem stem is aluminium post or aluminium alloy column.
8. a manufacture method for the black box of battery as claimed in claim 6, comprises the steps: step 1, adopts and directly cover copper method and be connected with ceramic substrate by metallic plate;
Step 2, cover plate to be welded mutually with ceramic substrate;
Step 3, stem stem passed through the via hole of the perforation of metallic plate, the through hole of ceramic substrate and cover plate, then stem stem is welded mutually with the perforation of metallic plate.
9. manufacture method according to claim 8, is characterized in that, described manufacture method also comprises in step 4, the first gap between stem stem and through hole and the second gap between stem stem and via hole inserts obturator.
10. manufacture method according to claim 8 or claim 9, it is characterized in that, in step 1, the described temperature directly covering copper method is 1063-1084 DEG C, and atmosphere is the nitrogen atmosphere containing 0-500ppm oxygen.
11. manufacture methods according to claim 8 or claim 9, is characterized in that, in step 2, described cover plate and ceramic substrate adopt soldering processes to weld mutually, and the solder that soldering processes adopt is Al-Si-Mg alloy, wherein, the content of Si is the content of 0-12wt%, Mg is 0-12wt%, and surplus is Al; The temperature of soldering processes is 570-660 DEG C, and atmosphere is vacuum or inert gas atmosphere.
12. manufacture methods according to claim 8 or claim 9, is characterized in that, in step 3, described stem stem adopts physical weld method to be welded in the perforation of metallic plate, and described physical weld method is electric resistance welding, Laser Welding or ultrasonic bond.
The manufacture method of the black box of 13. 1 kinds of batteries as claimed in claim 7, comprises the steps:
Step 1, metallic plate, cover plate are welded in respectively the upper and lower end face of ceramic substrate;
Step 2, stem stem passed through the via hole of the perforation of metallic plate, the through hole of ceramic substrate and cover plate, then stem stem is welded mutually with the perforation of metallic plate.
14. manufacture methods according to claim 13, is characterized in that, described manufacture method also comprises in step 3, the first gap between stem stem and through hole and the second gap between stem stem and via hole inserts obturator.
15. manufacture methods according to claim 13 or 14, it is characterized in that, in step 1, described metallic plate, cover plate and ceramic substrate adopt soldering processes to weld mutually, the solder that soldering processes adopt is Al-Si-Mg alloy, and wherein, the content of Si is 0-12wt%, the content of Mg is 0-12wt%, and surplus is Al; The temperature of soldering processes is 570-660 DEG C, and atmosphere is vacuum or inert gas atmosphere.
16. manufacture methods according to claim 13 or 14, is characterized in that, in step 2, described stem stem adopts physical weld method to be welded in the perforation of metallic plate, and described physical weld method is electric resistance welding, Laser Welding or ultrasonic bond.
17. 1 kinds of lithium ion batteries, comprise: the housing of at least one end opening, be sealed in the black box of the openend of described housing, seal cavity is formed between described housing and black box, pole piece and electrolyte is contained in described seal cavity, it is characterized in that, described black box adopts the black box of the battery as described in claim 1-7 any one, wherein, the cover plate of the black box of described battery is connected with housing, and the stem stem of the black box of described battery is connected with described pole piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110046069.4A CN102651482B (en) | 2011-02-25 | 2011-02-25 | Sealing component of battery, manufacturing method thereof and lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110046069.4A CN102651482B (en) | 2011-02-25 | 2011-02-25 | Sealing component of battery, manufacturing method thereof and lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102651482A CN102651482A (en) | 2012-08-29 |
| CN102651482B true CN102651482B (en) | 2015-06-24 |
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| CN201110046069.4A Active CN102651482B (en) | 2011-02-25 | 2011-02-25 | Sealing component of battery, manufacturing method thereof and lithium ion battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106739606B (en) * | 2016-12-16 | 2018-11-09 | 娄底市安地亚斯电子陶瓷有限公司 | A kind of power battery ceramic-seal ring insurance electrode preparation method |
| CN108281580A (en) * | 2018-01-11 | 2018-07-13 | 日照汇丰电子有限公司 | Accumulator sealed wiring column and its manufacture craft |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4678868A (en) * | 1979-06-25 | 1987-07-07 | Medtronic, Inc. | Hermetic electrical feedthrough assembly |
| US5518837A (en) * | 1994-10-17 | 1996-05-21 | Westinghouse Electric Corporation | Lithium/metal sulfide cell positive terminal feedthru assemblies |
| US5821011A (en) * | 1989-10-11 | 1998-10-13 | Medtronic, Inc. | Body implanted device with electrical feedthrough |
| US6696199B2 (en) * | 2002-01-30 | 2004-02-24 | Japan Storage Battery Co., Ltd. | Battery |
| CN101593819A (en) * | 2008-05-30 | 2009-12-02 | 上海空间电源研究所 | The apparatus for sealing pole post of lithium ion battery |
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2011
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4678868A (en) * | 1979-06-25 | 1987-07-07 | Medtronic, Inc. | Hermetic electrical feedthrough assembly |
| US5821011A (en) * | 1989-10-11 | 1998-10-13 | Medtronic, Inc. | Body implanted device with electrical feedthrough |
| US5518837A (en) * | 1994-10-17 | 1996-05-21 | Westinghouse Electric Corporation | Lithium/metal sulfide cell positive terminal feedthru assemblies |
| US6696199B2 (en) * | 2002-01-30 | 2004-02-24 | Japan Storage Battery Co., Ltd. | Battery |
| CN101593819A (en) * | 2008-05-30 | 2009-12-02 | 上海空间电源研究所 | The apparatus for sealing pole post of lithium ion battery |
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| CN102651482A (en) | 2012-08-29 |
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