CN109786591A - A kind of lithium ion battery ceramic cover plate component and lithium ion battery - Google Patents
A kind of lithium ion battery ceramic cover plate component and lithium ion battery Download PDFInfo
- Publication number
- CN109786591A CN109786591A CN201711129615.4A CN201711129615A CN109786591A CN 109786591 A CN109786591 A CN 109786591A CN 201711129615 A CN201711129615 A CN 201711129615A CN 109786591 A CN109786591 A CN 109786591A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- lithium ion
- ion battery
- porcelain ring
- stainless steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 44
- 239000000919 ceramic Substances 0.000 title claims abstract description 40
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 82
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 46
- 239000000758 substrate Substances 0.000 claims abstract description 42
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 41
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 41
- 239000010935 stainless steel Substances 0.000 claims abstract description 41
- 238000003466 welding Methods 0.000 claims abstract description 26
- 239000003792 electrolyte Substances 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 11
- 239000000306 component Substances 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- -1 switching piece Substances 0.000 description 1
Classifications
-
- 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
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The present invention discloses a kind of lithium ion battery ceramic cover plate component, including cover board body, porcelain ring, electrode terminal, the Cover Plate Body Is stainless steel substrate, mounting hole is offered on stainless steel substrate, porcelain ring is installed on mounting hole, and electrode terminal passes through porcelain ring, the top surface of electrode terminal is exposed on porcelain ring, the bottom surface of electrode terminal is exposed to below stainless steel substrate, and nickel disk is equipped between porcelain ring and stainless steel substrate, and nickel disk is welded with porcelain ring and stainless steel substrate respectively.The present invention provides a kind of lithium ion battery ceramic cover plate component and lithium ion battery, the material of disk in lithium ion battery ceramic cover plate component nickel material has been changed to, pass through laser welding, porcelain ring can firmly be welded together with stainless steel substrate, it is not in gas leak phenomenon, the good airproof performance of the product after welding.The shape of nickel disk and the setting that contact area is welded with porcelain ring, are able to ascend the welded seal of product.
Description
Technical field
The present invention relates to technical field of lithium ion, and in particular to a kind of lithium ion battery ceramic cover plate component and lithium from
Sub- battery.
Background technique
Lithium-ion-power cell as one of hybrid electric vehicle and the core component of pure electric vehicle, increasingly for auto vendor and
Battery producer is paid attention to.Currently, common lithium-ion-power cell generally comprises shell, cover board, and it is contained in shell, in cover board
Pole piece and electrolyte, be typically provided positive and negative electrode terminal on the cover board, with cover board insulate.Wherein, lithium ion power
The cover board of battery is made of stainless steel substrate, switching piece, plastic cement bottom plate, ceramic pole etc., wherein ceramic pole be again by
Copper tip, porcelain ring, disk form, and can be welded well with stainless steel substrate using stainless steel material production disk, but with
When ceramic ring welds, but because two kinds of material thermal expansion coefficients are different, and make to generate stress between welding process contact, thus
The defects of leading to not prison welding and welding gas leakage, causes the leakproofness of lithium-ion-power cell poor, influence the performance of product.Cause
This, is badly in need of researching and developing a kind of lithium ion battery ceramic cover plate component of better tightness.
Summary of the invention
In order to solve the above-mentioned technical problem the present invention provides a kind of lithium ion battery ceramic cover plate component and lithium-ion electric
Pond, this cover plate assembly solve porcelain ring and stainless steel substrate not prison welding, welding gas leakage and sealing in existing cover plate assembly
The technical problems such as property difference.
A kind of lithium ion battery ceramic cover plate component, including cover board body, porcelain ring, electrode terminal, the cover board sheet
Body is stainless steel substrate, and mounting hole is offered on stainless steel substrate, and porcelain ring is equipped on mounting hole, and electrode terminal passes through
The top surface of porcelain ring, electrode terminal is exposed on porcelain ring, and the bottom surface of electrode terminal is exposed to below stainless steel substrate, in ceramics
Nickel disk is equipped between circle and stainless steel substrate, nickel disk is welded with porcelain ring and stainless steel substrate respectively.
Preferably, the nickel disk is to offer through-hole among nickel disk with outer peripheral cap-like, the through-hole
Diameter is greater than the internal diameter of porcelain ring, and the outer edge maximum gauge of the nickel disk is greater than the outer diameter of porcelain ring.
Preferably, the nickel disk includes upper splicing, low splicing and the side wall for connecting upper splicing and low splicing, is mutually interconnected
Upper splicing, low splicing and side wall after connecing are welded at " Z " font, the top surface of upper splicing and the bottom surface of porcelain ring, the top of low splicing
Face and stainless steel substrate weld.
Preferably, the welding contact surface of the upper splicing of the porcelain ring and nickel disk and the ratio of non-solder contact surface are 1:
2。
Preferably, the nickel disk with a thickness of 0.2mm ~ 0.6mm.
Preferably, the welding manner of the nickel disk and porcelain ring is solder bonding metal.
Preferably, the welding manner of the nickel disk and stainless steel substrate is laser welding.
It preferably, further include gasket and switching piece, the gasket is connect with stainless steel substrate bottom surface, the switching piece
It is connect with the gasket.
The present invention also provides a kind of lithium ion battery, including pole piece, electrolyte, shell and cover plate assembly, the electrolysis
Liquid, pole piece be contained in the shell and cover plate assembly formed it is vacant intracavitary；The cover plate assembly is above-mentioned lithium-ion electric
Pond ceramic cover plate component.
The present invention provides a kind of lithium ion battery ceramic cover plate component and lithium ion battery, by lithium ion battery ceramic cover plate
The material of disk in component has been changed to nickel material, can be by porcelain ring and stainless steel substrate by laser welding and solder bonding metal
Firmly weld together, is not in gas leak phenomenon, the good airproof performance of the product after welding.The shape of nickel disk and with ceramics
Lap welding connects the setting of contact area, is able to ascend the welded seal of product.Using stainless steel substrate, than the high temperature resistant of aluminum substrate
Performance is more preferable, improves the security performance of lithium ion battery.Overall structure of the invention is simple, and production cost is low, is easy to volume production.
Detailed description of the invention
The cut-away illustration of Fig. 1 lithium ion battery ceramic cover plate component of the present invention.
Specific embodiment
In order to allow those skilled in the art to more fully understand technical solution of the present invention, the present invention is made below further
It illustrates.
As shown in Fig. 1, a kind of lithium ion battery ceramic cover plate component, including cover board body 1, porcelain ring 2, electrode terminal
3, the Cover Plate Body Is stainless steel substrate offers mounting hole 4 on stainless steel substrate, ceramics is equipped on mounting hole
Circle, electrode terminal pass through porcelain ring, and the top surface of electrode terminal is exposed on porcelain ring, and the bottom surface of electrode terminal is exposed to stainless steel
Below substrate, nickel disk 5 is equipped between porcelain ring and stainless steel substrate, nickel disk is welded with porcelain ring and stainless steel substrate respectively
It connecing, nickel disk is respectively laser welding with the welding manner of porcelain ring and stainless steel substrate,.The lithium ion battery ceramic cap board group
Part further includes gasket 6 and switching piece 7, and the gasket is connect with stainless steel substrate bottom surface, the switching piece and the pad
Piece connection.
Nickel disk 5 be with outer peripheral cap-like, nickel disk with a thickness of 0.2mm ~ 0.6mm, thickness that the present invention uses
For 0.4mm, offer through-hole 51 among nickel disk, the diameter of the through-hole is greater than the internal diameter of porcelain ring, the nickel disk it is outer
Edge maximum gauge is greater than the outer diameter of porcelain ring.Nickel disk 5 includes upper splicing 52, low splicing 53 and connection upper splicing and low splicing
Side wall 54, the upper splicing, low splicing and side wall after interconnection are at " Z " font, the top surface of upper splicing and the bottom surface of porcelain ring
Welding, the top surface of low splicing and stainless steel substrate weld.The welding contact surface of the porcelain ring and the upper splicing of nickel disk with it is non-
The ratio for welding contact surface is 1:2.
Technical problem to be solved by the present invention lies in, provide in a kind of lithium ion battery ceramic cover plate porcelain ring with it is stainless
The structure of steel substrate transition connection sealing, the structure solve the problems, such as that ceramics and stainless steel can not weld and weld gas leakage, make
Ceramic pole can be used for the lithium ion battery of stainless steel substrate, to optimize battery performance.
It can not be connect to solve the problems, such as in this lithium ion battery ceramic cover plate component porcelain ring with stainless steel substrate,
The material of disk of the present invention has been changed to nickel material, because nickel fusing point and stainless steel-like seemingly, at 1440 degree or so, pass through Laser Welding
Adhesive seal can be completely melt by connecing, at the same nickel material hardness it is low with porcelain ring is metalized coated passes through high temperature adhesives process internal stress
It is small, weld thermal histories and weld cooling procedure can follow ceramics expand with heat and contract with cold trend generation slight deformation, to reduce
Welding process contacts the contact stress between components, therefore good airproof performance after formed product, has reached cover board welded seal
It is required that therefore nickel disk is the production kind optimal transition structure of lithium ion battery ceramic cover plate component.
A kind of lithium ion battery, including pole piece, electrolyte, shell and cover plate assembly, the electrolyte, pole piece are contained in
The shell and cover plate assembly form vacant intracavitary；The cover plate assembly is above-mentioned lithium ion battery ceramic cap board group
Part.
The present invention provides a kind of lithium ion battery ceramic cover plate component and lithium ion battery, by lithium ion battery ceramic cover plate
The material of disk in component has been changed to nickel material, can be by porcelain ring and stainless steel substrate by laser welding and solder bonding metal
Firmly weld together, is not in gas leak phenomenon, the good airproof performance of the product after welding.The shape of nickel disk and with ceramics
Lap welding connects the setting of contact area, is able to ascend the welded seal of product.Using stainless steel substrate, than the high temperature resistant of aluminum substrate
Performance is more preferable, improves the security performance of lithium ion battery.Overall structure of the invention is simple, and production cost is low, is easy to volume production.
The above are the preferable implementations of the present invention, it should be noted that without departing substantially from spirit of that invention and its essence
In the case of, those skilled in the art make various corresponding changes and modifications in accordance with the present invention, but these change
It all should belong to protection scope of the present invention with deformation.
Claims (9)
1. a kind of lithium ion battery ceramic cover plate component, including cover board body (1), porcelain ring (2), electrode terminal (3), feature
Be: the Cover Plate Body Is stainless steel substrate offers mounting hole (4) on stainless steel substrate, installs on mounting hole
There is porcelain ring, electrode terminal passes through porcelain ring, and the top surface of electrode terminal is exposed on porcelain ring, and the bottom surface of electrode terminal is exposed to
Below stainless steel substrate, be equipped with nickel disk (5) between porcelain ring and stainless steel substrate, nickel disk respectively with porcelain ring and stainless
Steel substrate welding.
2. lithium ion battery ceramic cover plate component according to claim 1, it is characterised in that: the nickel disk (5) is
It with outer peripheral cap-like, is offered among nickel disk through-hole (51), the diameter of the through-hole is greater than the internal diameter of porcelain ring, described
The outer edge maximum gauge of nickel disk is greater than the outer diameter of porcelain ring.
3. lithium ion battery ceramic cover plate component according to claim 2, it is characterised in that: nickel disk (5) packet
Include upper splicing (52), low splicing (53) and the side wall (54) for connecting upper splicing and low splicing, upper splicing after interconnection, under connect
Piece and side wall are welded at " Z " font, the top surface of upper splicing and the bottom surface of porcelain ring, and the top surface of low splicing and stainless steel substrate weld
It connects.
4. lithium ion battery ceramic cover plate component according to claim 2, it is characterised in that: the porcelain ring and nickel disk
Upper splicing welding contact surface and non-solder contact surface ratio be 1:2.
5. lithium ion battery ceramic cover plate component according to claim 1, it is characterised in that: the thickness of the nickel disk
For 0.2mm ~ 0.6mm.
6. lithium ion battery ceramic cover plate component according to claim 1, it is characterised in that: the nickel disk and porcelain ring
Welding manner be solder bonding metal.
7. lithium ion battery ceramic cover plate component according to claim 1, it is characterised in that: the nickel disk and stainless steel
The welding manner of substrate is laser welding.
8. lithium ion battery ceramic cover plate component according to claim 1, it is characterised in that: further include gasket (6) and turn
Contact pin (7), the gasket are connect with stainless steel substrate bottom surface, and the switching piece is connect with the gasket.
9. a kind of lithium ion battery, including pole piece, electrolyte, shell and cover plate assembly, the electrolyte, pole piece are contained in institute
State shell and cover plate assembly formed it is vacant intracavitary；It is characterized by: the cover plate assembly is any in claim 1-8
Lithium ion battery ceramic cover plate component described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711129615.4A CN109786591A (en) | 2017-11-15 | 2017-11-15 | A kind of lithium ion battery ceramic cover plate component and lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711129615.4A CN109786591A (en) | 2017-11-15 | 2017-11-15 | A kind of lithium ion battery ceramic cover plate component and lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109786591A true CN109786591A (en) | 2019-05-21 |
Family
ID=66494291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711129615.4A Pending CN109786591A (en) | 2017-11-15 | 2017-11-15 | A kind of lithium ion battery ceramic cover plate component and lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109786591A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203617358U (en) * | 2013-11-29 | 2014-05-28 | 惠州比亚迪电池有限公司 | Ceramic sealing ring, battery cover plate component and battery |
| CN203707197U (en) * | 2013-12-06 | 2014-07-09 | 惠州比亚迪电池有限公司 | Power battery cover plate assembly and power battery |
| CN205752363U (en) * | 2016-05-17 | 2016-11-30 | 比亚迪股份有限公司 | Battery protecting apparatus, cover plate assembly and battery |
| CN205752364U (en) * | 2016-05-17 | 2016-11-30 | 比亚迪股份有限公司 | Battery protecting apparatus, cover plate assembly and battery |
| CN205790173U (en) * | 2016-05-17 | 2016-12-07 | 比亚迪股份有限公司 | Battery protecting apparatus, cover plate assembly and battery |
| CN206098477U (en) * | 2016-10-27 | 2017-04-12 | 慈晟 | Battery apron with duplicate protection function |
| CN206250230U (en) * | 2016-12-14 | 2017-06-13 | 慈晟 | A kind of novel battery cover plate |
| CN207368021U (en) * | 2017-11-15 | 2018-05-15 | 广东九九华立新材料股份有限公司 | A kind of lithium ion battery ceramic cover plate component and lithium ion battery |
-
2017
- 2017-11-15 CN CN201711129615.4A patent/CN109786591A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203617358U (en) * | 2013-11-29 | 2014-05-28 | 惠州比亚迪电池有限公司 | Ceramic sealing ring, battery cover plate component and battery |
| CN203707197U (en) * | 2013-12-06 | 2014-07-09 | 惠州比亚迪电池有限公司 | Power battery cover plate assembly and power battery |
| CN205752363U (en) * | 2016-05-17 | 2016-11-30 | 比亚迪股份有限公司 | Battery protecting apparatus, cover plate assembly and battery |
| CN205752364U (en) * | 2016-05-17 | 2016-11-30 | 比亚迪股份有限公司 | Battery protecting apparatus, cover plate assembly and battery |
| CN205790173U (en) * | 2016-05-17 | 2016-12-07 | 比亚迪股份有限公司 | Battery protecting apparatus, cover plate assembly and battery |
| CN206098477U (en) * | 2016-10-27 | 2017-04-12 | 慈晟 | Battery apron with duplicate protection function |
| CN206250230U (en) * | 2016-12-14 | 2017-06-13 | 慈晟 | A kind of novel battery cover plate |
| CN207368021U (en) * | 2017-11-15 | 2018-05-15 | 广东九九华立新材料股份有限公司 | A kind of lithium ion battery ceramic cover plate component and lithium ion battery |
Non-Patent Citations (1)
| Title |
|---|
| 高忠民: "《实用电焊技术》", vol. 1, 北京：金盾出版社, pages: 139 - 144 * |
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