CN102856514B - A cover plate assembly and lithium ion battery containing the cover plate assembly - Google Patents
A cover plate assembly and lithium ion battery containing the cover plate assembly Download PDFInfo
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- CN102856514B CN102856514B CN201110175937.9A CN201110175937A CN102856514B CN 102856514 B CN102856514 B CN 102856514B CN 201110175937 A CN201110175937 A CN 201110175937A CN 102856514 B CN102856514 B CN 102856514B
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- cover plate
- sealing
- plate assembly
- ceramic seal
- hole
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 24
- 239000000919 ceramic Substances 0.000 claims abstract description 55
- 238000003466 welding Methods 0.000 claims description 19
- 239000003792 electrolyte Substances 0.000 claims description 10
- 150000003624 transition metals Chemical group 0.000 claims description 10
- 229910000679 solder Inorganic materials 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910000833 kovar Inorganic materials 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 23
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 238000001465 metallisation Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- PCEXQRKSUSSDFT-UHFFFAOYSA-N [Mn].[Mo] Chemical compound [Mn].[Mo] PCEXQRKSUSSDFT-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/184—Sealing members characterised by their shape or structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/191—Inorganic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/562—Terminals characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/548—Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention provides a cover plate assembly, the cover plate assembly includes a sealing cover plate and an electrode structure insulated from the sealing cover plate, the electrode structure includes a ceramic sealing member and an electrode terminal, the sealing cover plate is used for sealing the casing of the battery; the sealing cover plate has at least one first through hole, the electrode structure is set in the first through hole; the electrode terminal penetrates through the first through hole to lead out the internal current of the battery, the ceramic sealing member is sandwiched between the electrode terminal and the sealing cover plate for insulating and sealing. The invention also provides a lithium ion battery comprising the cover plate assembly. The cover plate assembly provided in the invention has good sealing performance and sealing strength to the lithium ion battery, greatly improves the safety of the battery, and prolongs the service life of the battery.
Description
Technical field
The invention belongs to field of batteries, particularly relate to a kind of cover plate assembly and the lithium ion battery containing this cover plate assembly.
Background technology
Lithium ion battery, owing to having the advantages such as pollution-free, low cost, capacity are high, have extended cycle life, becomes the ideal power source of the modern means of communication.Lithium ion battery is by positive plate, barrier film, negative plate winding or after being stacked to pole piece, pole piece is put into the cavity of battery container and cover plate formation, the inner electrolyte that injects obtains after the steps such as sealing changes into.Therefore, the sealing of lithium ion battery cover plate to battery container is extremely important, and whether the sealing of cover plate assembly well relates to the fail safe of battery, sealing, resistance to ag(e)ing, insulating properties.
At present, the sealing of lithium ion battery mainly adopts plastic parts to seal and insulation, but plastic parts is under soaking for a long time through battery electrolyte, and its compactness and resistance to ag(e)ing reduce greatly, causes that plastic parts is aging, the leakage of seal failure inside battery.In addition, plastic parts is combustible material, makes battery there is potential safety hazard, is also difficult to its useful life ensure.
Summary of the invention
The invention solves lithium ion battery of the prior art adopt plastic parts as cover plate assembly battery sealed cause that battery exists potential safety hazard, useful life is difficult to the technical problem that ensures.
The invention provides a kind of cover plate assembly, the electrode structure that described cover plate assembly comprises sealing-in cover plate and insulate with described sealing-in cover plate, described electrode structure comprises ceramic seal and electrode terminal, and sealing-in cover plate is used for sealed cell shell; Sealing-in cover plate has at least one first through hole, in described first through hole, be provided with electrode structure; Electrode terminal draws inside battery electric current through the first through hole, clamps ceramic seal insulated enclosure between electrode terminal and sealing-in cover plate.
Present invention also offers a kind of lithium ion battery, comprise battery case, cover plate assembly and be positioned at battery case and cover plate assembly surround battery core and the electrolyte of cavity; Battery core leads to the first lug and the second lug; Described cover plate assembly is cover plate assembly provided by the invention.
Present invention also offers a kind of lithium ion battery, comprise the shell of both ends open, respectively can both ends open cover plate assembly and be positioned at shell and cover plate surround battery core and the electrolyte of cavity, the two ends of battery core lead to the first lug and the second lug respectively; Described cover plate assembly is cover plate assembly provided by the invention, and the first lug, the second lug are electrically connected with the electrode terminal at two ends respectively.
Cover plate assembly provided by the invention, by adopting ceramic seal as insulating material, the insulating properties of lithium ion battery provided by the invention and electrolyte resistance corrosivity are obviously strengthened, and cover plate assembly of the present invention is non-flammable seal cover board, substantially increases the fail safe of battery.The sealing intensity of this cover plate assembly to battery increases greatly simultaneously, battery leakage or electrolyte effectively can be avoided to receive pollution, therefore effectively can extend the useful life of lithium ion battery.
Accompanying drawing explanation
Fig. 1 is the structural representation of the cover plate assembly that the embodiment of the present invention one provides.
Fig. 2 is the structural representation of the cover plate assembly that the embodiment of the present invention two provides.
Fig. 3 is a kind of structural representation of lithium ion battery provided by the invention.
Fig. 4 is the another kind of structural representation of lithium ion battery provided by the 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.
The invention provides a kind of cover plate assembly, below in conjunction with specific embodiment, cover plate assembly of the present invention is described further.
Embodiment one
As shown in Figure 1, the electrode structure 5 that described cover plate assembly comprises sealing-in cover plate 3 and insulate with described sealing-in cover plate 3, described electrode structure 5 comprises ceramic seal 2 and electrode terminal 1, and sealing-in cover plate 3 is for sealed cell shell.
Sealing-in cover plate 3 has the first through hole, the first through hole can be one or more; Electrode structure 5 is provided with in first through hole.In Fig. 3, on sealing-in cover plate 3, the number of the first through hole is one, and the number of corresponding electrode structure is also one.In Fig. 4, on sealing-in cover plate 3, the number of the first through hole is two, and the number of corresponding electrode structure is also two.
Electrode terminal 1 draws inside battery electric current through the first through hole, clamps ceramic seal insulated enclosure between electrode terminal 1 and sealing-in cover plate 3.
Different two sections of the external diameter that described ceramic seal 2 comprises integrative-structure, one section of (being designated as first paragraph) 21 that wherein external diameter is less is arranged in the first through hole of sealing-in cover plate 3, and one section of (being designated as second segment) 22 that external diameter is larger is connected on sealing-in cover plate 3.Therefore, the aperture of the first through hole of sealing-in cover plate 3 need be mated with the external diameter of first paragraph 21, and be less than the external diameter of second segment 22, thus ensure to wear first paragraph 21, second segment 22 can be made again to be connected on sealing-in cover plate 3, thus to make, between sealing-in cover plate 3 and ceramic seal 2, there is good sealing.Described ceramic seal directly can adopt various insulating ceramicses common in prior art, such as, can be Al
2o
3system's pottery.
Ceramic seal 2 is provided with the second through hole, and electrode terminal 1 is arranged in described second through hole.
Described electrode terminal 1 comprises pole 11 and the polar cap 12 of integrative-structure.Wherein, pole 11 is arranged in the second through hole of ceramic seal 2.Polar cap 12 is positioned at one end of pole, is connected on ceramic seal 2.Therefore, the aperture of the second through hole of ceramic seal 2 need be mated with the external diameter of pole 11, and is less than the external diameter of polar cap 12, thus ensures to wear pole 11, polar cap 12 can be made again to be connected on ceramic seal 2, thus to make, between ceramic seal 2 and electrode terminal 1, there is good sealing.In the present invention, described electrode terminal 1, for being connected with the lug in battery core, can be connected with positive pole ear, also can be connected with negative lug.If electrode terminal is used for being connected with positive pole ear, then described electrode terminal is pure aluminum or aluminum alloy.If electrode terminal is used for being connected with negative lug, then described electrode terminal is fine copper or copper alloy.In the present invention, pole 11 and the polar cap 12 of described electrode terminal 1 can be obtained by one-body molded, also can welding or cold-heading be adopted again to make the electrode terminal of formation integrative-structure after obtaining pole 11, polar cap 12 respectively.
Described sealing-in cover plate 3, for being assemblied in the end of battery case, seals battery case.Cannot disperse in time to cause sealing intensity to reduce or sealing effectiveness reduces being fixedly connected with the mechanical stress produced in process with battery case or ceramic seal 2 for preventing sealing-in cover plate 3, in the present invention, under preferable case, described sealing-in cover plate 3 is also provided with buffer structure 31.Buffer structure 31 and sealing-in cover plate 3 are structure as a whole, it is positioned on sealing-in cover plate 3 near the first through hole, thus be fixedly connected with in process at sealing-in cover plate 3 can in time mechanical stress carried out cushioning and weakening with ceramic seal 2, and the bending strength of sealing-in cover plate 3 can be strengthened, ensure the good sealing property of cover plate assembly of the present invention.Described buffer structure 31 can be the step of arch or spill, and such as buffer structure shown in Fig. 1,2 is arch step.
Described sealing-in cover plate can adopt various cover plate materials common in prior art, such as, can be fine aluminium or aluminium alloy.The described shape of sealing-in cover plate and the form fit of battery, such as, can be circular, square or rounded square, be not particularly limited in the present invention.
In the present invention, be all fixedly connected with between sealing-in cover plate 3 with ceramic seal 2 and between ceramic seal 2 with electrode terminal 1.Under preferable case, between sealing-in cover plate 3 and ceramic seal 2, be provided with the first metallic solder layer (attached not shown), between ceramic seal 2 and electrode terminal 1, be provided with the second metallic solder layer (attached not shown).Described first metallic solder layer is formed by Welding again and between sealing-in cover plate 3 after metallizing to ceramic seal 2.Second metallic solder layer is formed by Welding again and between electrode terminal 1 after first metallizing to ceramic seal 2.
Described Welding is the welding procedure that those skilled in the art commonly use, and repeats no more in the present invention.Pass through Welding, can welding node place and base material to be welded will be made to form integrative-structure, namely be welded into one between sealing-in cover plate 3 and ceramic seal 2 and between ceramic seal 2 and electrode terminal 1 structure, ensure its sealing intensity on the one hand, reduce the interface difference of material on the other hand, thus reduce the internal resistance of cover plate assembly, reduce battery-heating amount.
As the common practise of those skilled in the art, because ceramic seal 2 is insulator, therefore need before welding to metallize to the position to be welded of ceramic seal 2.Described metallization can adopt ceramic surface metallization technique common in prior art, such as, can carry out manganese molybdenum to ceramic surface.Under preferable case, ceramic metallization completes and also can proceed the element that nickel plating, zinc, aluminium etc. do not affect welding, to strengthen the mechanical strength of welding position and base material to be welded.
The preparation method of the cover plate assembly of the present embodiment comprises: after metallizing to the position to be welded of ceramic seal 2, then be inserted in the first through hole of sealing-in cover plate 3, then electrode terminal 1 is inserted in the second through hole of ceramic seal 2, then adopt Welding to weld the first through hole, the second through hole.Or, first metallized ceramic seal 2 is inserted after in the first through hole of sealing-in cover plate 3, Welding is carried out to the first through hole, ceramic seal 2 is fixedly connected with sealing-in cover plate, then electrode terminal 1 is inserted after in the second through hole of ceramic seal 2, Welding is carried out to the second through hole.Also first electrode terminal 1 can be inserted after in the second through hole of metallized ceramic seal 2, Welding is carried out to the second through hole; Then ceramic seal 2 inserts on sealing-in cover plate 3 with the entirety of electrode terminal 1, makes the first paragraph 21 of ceramic seal 2 insert in the first through hole of sealing-in cover plate 3, then carries out Welding to the first through hole.
Embodiment two
As a kind of preferred implementation of the present invention, in described cover plate assembly, also transition metal ring plate 4 can be provided with.As shown in Figure 2, transition metal ring plate 4 can be provided with between the second segment 22 of sealing-in cover plate 3 and ceramic seal 2.Ceramic seal 2 and also can be provided with transition metal ring plate 4 between polar cap 12.The mechanical stress produced when described transition metal ring plate is for cushioning or reducing soldering.
Described transition metal ring plate can adopt common various easily and copper or copper alloy, aluminum or aluminum alloy carries out the metal material that welds, such as, can adopt kovar alloy or stainless steel.The maximum outside diameter of transition metal ring plate 4 can be identical with the external diameter of the second segment 22 of ceramic seal 2, also can be different, and the present invention is not particularly limited.
More preferably, in situation, the element that nickel plating, zinc, aluminium etc. do not affect welding also can be carried out, to strengthen the mechanical strength of welding position and base material to be welded in transition metal ring plate surface.
Present invention also offers the lithium ion battery containing described cover plate assembly.
Described lithium ion battery, comprise battery case, cover plate assembly and be positioned at battery case and cover plate assembly surround battery core and the electrolyte of cavity; Battery core leads to the first lug and the second lug; It is characterized in that, described cover plate assembly is cover plate assembly provided by the invention.
As shown in Figure 3, the sealing-in cover plate 3 of the cover plate assembly of described lithium ion battery is provided with two the first through holes, is equipped with electrode structure 5 in two the first through holes.Two electrode structures 5 are electrically connected conducting with the first lug, the second lug respectively.
Described battery core namely by positive plate, barrier film, negative plate through winding or some repeatedly repeat stacked and formed the assembly that electric energy is provided.In battery core, positive plate draws anode ear, negative plate draws negative electrode lug, anode ear and negative electrode lug are connected by soldering or the like on cover plate sealing-in cover plate and electrode terminal again.As for the manufacture method of positive plate, negative plate, barrier film, and other technology for manufacturing electric core etc. is conventionally known to one of skill in the art, therefore repeats no more.
In the present invention, the shell of described lithium ion battery also can be the battery case of both ends open.Particularly, described lithium ion battery, comprise the shell of both ends open, respectively can both ends open cover plate assembly and be positioned at shell and cover plate surround battery core and the electrolyte of cavity, the two ends of battery core lead to the first lug and the second lug respectively; It is characterized in that, described cover plate assembly is cover plate assembly provided by the invention, and the first lug, the second lug are electrically connected with the electrode terminal at two ends respectively.
The structure of the cover plate assembly at lithium ion battery two ends is identical, and the first lug, the second lug are electrically connected conducting with the electrode terminal on the cover plate assembly at two ends respectively, as shown in Figure 4, repeat no more herein.
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.
Claims (10)
1. a cover plate assembly, is characterized in that, the electrode structure that described cover plate assembly comprises sealing-in cover plate and insulate with described sealing-in cover plate, and described electrode structure is made up of ceramic seal and electrode terminal, and sealing-in cover plate is used for sealed cell shell;
Sealing-in cover plate has at least one first through hole, in described first through hole, be provided with electrode structure;
Electrode terminal draws inside battery electric current through the first through hole, clamps ceramic seal insulated enclosure between electrode terminal and sealing-in cover plate; Described ceramic seal comprises different two sections of the external diameter of integrative-structure, and wherein less one section of external diameter is arranged in the first through hole of sealing-in cover plate;
Ceramic seal is provided with the second through hole, and electrode terminal is arranged in described second through hole; Electrode terminal comprises pole and the polar cap of integrative-structure, and polar cap is positioned at one end of pole, and pole is arranged in the second through hole of ceramic seal, and polar cap is connected on ceramic seal.
2. cover plate assembly according to claim 1, is characterized in that, is also provided with transition metal ring plate between larger one section of the external diameter of sealing-in cover plate and ceramic seal.
3. cover plate assembly according to claim 1, is characterized in that, is also provided with transition metal ring plate between ceramic seal and polar cap.
4. the cover plate assembly according to Claims 2 or 3, is characterized in that, transition metal ring plate is kovar alloy or stainless steel.
5. cover plate assembly according to claim 1, is characterized in that, described sealing-in cover plate is also provided with buffer structure near the first through hole, and described buffer structure is arch or concave step.
6. cover plate assembly according to claim 1, is characterized in that, sealing-in cover plate is pure aluminum or aluminum alloy, and ceramic seal is Al
2o
3system's pottery, electrode terminal is pure aluminum or aluminum alloy, fine copper or copper alloy.
7. cover plate assembly according to claim 1, it is characterized in that, be provided with the first metallic solder layer between sealing-in cover plate and ceramic seal, described first metallic solder layer is formed by Welding again and between sealing-in cover plate after metallizing to ceramic seal;
Be provided with the second metallic solder layer between ceramic seal and electrode terminal, described second metallic solder layer is formed by Welding again and between electrode terminal after metallizing to ceramic seal.
8. cover plate assembly according to claim 1, is characterized in that, the number of the first through hole on sealing-in cover plate is two.
9. a lithium ion battery, comprise battery case, cover plate assembly and be positioned at battery case and cover plate assembly surround battery core and the electrolyte of cavity; Battery core leads to the first lug and the second lug; It is characterized in that, described cover plate assembly is the cover plate assembly described in any one of claim 1-8.
10. a lithium ion battery, comprise the shell of both ends open, respectively can both ends open cover plate assembly and be positioned at shell and cover plate surround battery core and the electrolyte of cavity, the two ends of battery core lead to the first lug and the second lug respectively; It is characterized in that, described cover plate assembly is electrically connected with the electrode terminal at two ends respectively for the cover plate assembly described in any one of claim 1-8, the first lug, the second lug.
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110175937.9A CN102856514B (en) | 2011-06-28 | 2011-06-28 | A cover plate assembly and lithium ion battery containing the cover plate assembly |
| JP2014517423A JP5753317B2 (en) | 2011-06-28 | 2012-06-27 | Cover assembly and battery including the same |
| EP12803624.1A EP2727174B1 (en) | 2011-06-28 | 2012-06-27 | Electrode terminal, cover assembly and battery comprising the cover assembly |
| PCT/CN2012/077673 WO2013000416A1 (en) | 2011-06-28 | 2012-06-27 | Cover assembly and lithium ion battery comprising the same |
| PCT/CN2012/077670 WO2013000415A1 (en) | 2011-06-28 | 2012-06-27 | Electrode terminal, cover assembly and battery comprising the cover assembly |
| KR1020147001293A KR101554441B1 (en) | 2011-06-28 | 2012-06-27 | Cover assembly and battery comprising the same |
| EP12804665.3A EP2727166B1 (en) | 2011-06-28 | 2012-06-27 | Cover assembly and battery comprising the same |
| PCT/CN2012/077667 WO2013000414A1 (en) | 2011-06-28 | 2012-06-27 | Cover assembly and battery comprising the same |
| KR1020147002229A KR101589838B1 (en) | 2011-06-28 | 2012-06-27 | Electrode terminal, cover assembly and battery comprising the cover assembly |
| JP2014517424A JP5941143B2 (en) | 2011-06-28 | 2012-06-27 | Cover assembly and battery comprising the cover assembly |
| US14/134,984 US10109839B2 (en) | 2011-06-28 | 2013-12-19 | Electrode terminal, cover assembly and battery |
| US14/137,696 US10333131B2 (en) | 2011-06-28 | 2013-12-20 | Cover assembly and battery comprising the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110175937.9A CN102856514B (en) | 2011-06-28 | 2011-06-28 | A cover plate assembly and lithium ion battery containing the cover plate assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102856514A CN102856514A (en) | 2013-01-02 |
| CN102856514B true CN102856514B (en) | 2015-07-22 |
Family
ID=47402886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110175937.9A Active CN102856514B (en) | 2011-06-28 | 2011-06-28 | A cover plate assembly and lithium ion battery containing the cover plate assembly |
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| Country | Link |
|---|---|
| CN (1) | CN102856514B (en) |
| WO (1) | WO2013000416A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105789492A (en) * | 2014-12-23 | 2016-07-20 | 比亚迪股份有限公司 | Battery shell, preparation method of battery shell, battery, battery pack and electric car |
| CN105789500A (en) * | 2014-12-23 | 2016-07-20 | 比亚迪股份有限公司 | Battery housing and manufacturing method thereof, battery, battery bank, battery pack and electric vehicle |
| CN104733656A (en) * | 2015-03-10 | 2015-06-24 | 广州力柏电动科技有限公司 | Ceramic sealing battery |
| CN105070949A (en) * | 2015-08-14 | 2015-11-18 | 江苏绿伟锂能有限公司 | Cylindrical lithium-ion battery |
| CN106450068B (en) * | 2016-10-26 | 2023-01-24 | 东莞市盖瓷新能源科技有限公司 | Power battery pole ceramic sealing device and sealing implementation method |
| CN107275529B (en) * | 2017-06-12 | 2020-10-27 | 广东康荣高科新材料股份有限公司 | Lithium ion battery cathode pole sealing structure and preparation process thereof |
| CN111726951B (en) * | 2020-06-19 | 2022-03-01 | Oppo广东移动通信有限公司 | Electronic device |
| CN112599902A (en) * | 2020-12-16 | 2021-04-02 | 惠州市德能电池有限公司 | Packaging structure, button cell and packaging method thereof |
| CN112599901A (en) * | 2020-12-16 | 2021-04-02 | 惠州市德能电池有限公司 | Ceramic insulating sheet, button cell and packaging method thereof |
| DE102021114887A1 (en) * | 2021-06-09 | 2022-12-15 | Volkswagen Aktiengesellschaft | Battery cell with cover element |
| EP4333193A1 (en) * | 2021-11-26 | 2024-03-06 | Contemporary Amperex Technology Co., Limited | Battery cell and method and apparatus for manufacturing same, battery, and electrical device |
| CN115621676B (en) * | 2022-12-19 | 2023-05-09 | 比亚迪股份有限公司 | Composite pole, end plate assembly, battery and vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6268079B1 (en) * | 1998-11-25 | 2001-07-31 | Japan Storage Battery Co., Ltd. | Nonaqueous-electrolyte battery |
| EP1300896A1 (en) * | 2001-10-03 | 2003-04-09 | Ngk Insulators, Ltd. | Lithium secondary battery and assembled structure of lithium secondary batteries |
| CN201146250Y (en) * | 2007-12-25 | 2008-11-05 | 比亚迪股份有限公司 | Piece for connecting battery module |
| CN102074676A (en) * | 2010-12-31 | 2011-05-25 | 东莞新能源科技有限公司 | Power battery |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56116267A (en) * | 1980-02-18 | 1981-09-11 | Seiko Instr & Electronics Ltd | Ceramic sealed case for sealed battery |
| JPS5871557A (en) * | 1981-10-22 | 1983-04-28 | Seiko Instr & Electronics Ltd | Hermetically-sealed type battery |
| US6696199B2 (en) * | 2002-01-30 | 2004-02-24 | Japan Storage Battery Co., Ltd. | Battery |
-
2011
- 2011-06-28 CN CN201110175937.9A patent/CN102856514B/en active Active
-
2012
- 2012-06-27 WO PCT/CN2012/077673 patent/WO2013000416A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6268079B1 (en) * | 1998-11-25 | 2001-07-31 | Japan Storage Battery Co., Ltd. | Nonaqueous-electrolyte battery |
| EP1300896A1 (en) * | 2001-10-03 | 2003-04-09 | Ngk Insulators, Ltd. | Lithium secondary battery and assembled structure of lithium secondary batteries |
| CN201146250Y (en) * | 2007-12-25 | 2008-11-05 | 比亚迪股份有限公司 | Piece for connecting battery module |
| CN102074676A (en) * | 2010-12-31 | 2011-05-25 | 东莞新能源科技有限公司 | Power battery |
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| Publication number | Publication date |
|---|---|
| WO2013000416A1 (en) | 2013-01-03 |
| CN102856514A (en) | 2013-01-02 |
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