CN208093668U - A kind of lithium ion battery - Google Patents
A kind of lithium ion battery Download PDFInfo
- Publication number
- CN208093668U CN208093668U CN201820317516.2U CN201820317516U CN208093668U CN 208093668 U CN208093668 U CN 208093668U CN 201820317516 U CN201820317516 U CN 201820317516U CN 208093668 U CN208093668 U CN 208093668U
- Authority
- CN
- China
- Prior art keywords
- chaff
- shell
- anode
- core
- board substrate
- 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.)
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 47
- 239000004411 aluminium Substances 0.000 claims abstract description 45
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 32
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000012212 insulator Substances 0.000 claims abstract description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 13
- 239000011521 glass Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000011888 foil Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 2
- 238000003466 welding Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 229910000679 solder Inorganic materials 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000005245 sintering Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 5
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- DBRHOLYIDDOQSD-UHFFFAOYSA-N alumane;lead Chemical compound [AlH3].[Pb] DBRHOLYIDDOQSD-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 238000000641 cold extrusion Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- Secondary Cells (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model belongs to technical field of lithium batteries, it is related to a kind of lithium ion battery, it include the shell for drawing cathode of lithium battery, the core covered upper cover square on the housing and be located in the shell portion, it is characterized in that, the upper cover includes and the matched cover board substrate of shell, it is inserted into the boss outer shroud in cover board substrate center hole and is inserted into the boss inner core of the boss outer shroud, insulator seal ring is equipped between the boss outer shroud and cover board substrate center hole, boss inner core for drawing lithium battery anode is T-type aluminium pole, the T-type aluminium pole is led chaff by anode and is connect with core anode, the shell is led chaff by cathode and is connect with core cathode；Chaff welding is led using T-type aluminium pole and aluminium in the lithium battery upper cover, since material is identical, be not in solder joint high/low temperature recycle occur in the process fall off, problem of Cracking, while can save anode using aluminium material and lead chaff material cost.
Description
Technical field
The utility model is related to a kind of lithium ion batteries, belong to technical field of lithium batteries.
Background technology
In the production process of lithium battery, traditional upper cover uses stainless steel, draws in the boss of anode of lithium battery
Core 1 is T-type stainless steel pole, and T-type pole is inserted into the hole of cover board substrate 2, covers upper insulator seal ring again after being positioned on mold
4, the insulator seal ring 4 is ring glass body, melts ring glass body by glass sintering technique, fixed after vitreum cooling
Firmly T-type pole and cover board substrate 2 reach sealing and insulation between the two by vitreum, and the cathode of lithium battery is shell 5,
It is typically also stainless steel, anode coat 5 is combined together with upper cover by laser welding, by ring glass body by positive and negative anodes
Completely cut off, as depicted in figs. 1 and 2；
In the production process of lithium battery, anode electrode uses copper using aluminium foil as cloth base material, negative electrode is applied
Foil, the active material stored charge applied on positive and negative anodes electrode, is the positive and negative anodes that lithium battery is transmitted to by leading chaff（On
It is cathode that lid T-type stainless steel pole, which is anode/shell,）On, chaff generally use material identical with electrode base material is led, i.e., just
Pole aluminum cathode is copper.But aluminium leads the reason of chaff and lithium battery T-type stainless steel pole are because of fusing point, hardness, is very not
Good welding, in order to solve this problem, usual manner are that the compound chaff of leading of aluminium nickel is welded with anode, aluminium nickel composite guide foil
Usual one section of item is aluminium, and one section is nickel, and the two is got up by laser welding, or takes other process combinings together, is done
Cheng Xin's leads chaff（It is aluminium on one side, is nickel on one side）.No matter using made of which kind of mode（As aluminium nickel is compound）Lead chaff, price
Chaff all is led far above fine aluminium, even if in addition, the chaff of leading with the welding of T-type stainless steel pole is nickel material, or because be not
With metal, the reason of because of fusing point and hardness, there are hidden danger for welding quality.Especially lithium battery product is followed in high/low temperature
Ring is in use, easily there is the problem of solder joint falls off, cracks.
Invention content
The problem of the purpose of this utility model is for existing lithium battery, provides a kind of lithium ion battery, on the lithium battery
Chaff welding is led using T-type aluminium pole and aluminium in lid ontology, is not in that solder joint is recycled in high/low temperature since material is identical
Occur in the process fall off, problem of Cracking, while can save anode using aluminium material and lead chaff material cost.
For the above technical purpose of realization, the technical solution of the utility model is：A kind of lithium ion battery, including be used to draw
The shell of cathode of lithium battery, the core covered upper cover square on the housing and be located in the shell portion, which is characterized in that institute
Upper cover is stated to include with the matched cover board substrate of shell, be inserted into the boss outer shroud in cover board substrate center hole and be inserted into described convex
The boss inner core of platform outer shroud is equipped with insulator seal ring, for drawing lithium battery between the boss outer shroud and cover board substrate center hole
The boss inner core of anode is T-type aluminium pole, and the T-type aluminium pole is led chaff by anode and connect with core anode, the shell
Chaff is led by cathode to connect with core cathode.
Further, the cover board substrate is equipped with liquid injection hole, the liquid injection hole and the gas in shell above core
Body storage cavity is connected, and is sealed using stainless steel lag screws in the liquid injection hole.
Further, it is that aluminium leads chaff that the anode, which leads chaff, and it is that copper leads chaff that the cathode, which leads chaff,.
Further, the material of the cover board substrate, boss outer shroud and shell is stainless steel.
Further, the material of the insulator seal ring is glass.
Further, a diameter of 2.5mm ~ 3.5mm of the T-type aluminium pole.
Compared with existing lithium battery, the utility model has the following advantages：
1）Compared with traditional structure, using aluminium as pole in the utility model upper cover, anode leads chaff and only needs to use
Aluminium leads chaff, can save cost；
2）T-type aluminium pole, positive-pole base material and positive aluminium lead chaff welding, are not in solder joint low since material is identical
Temperature recycle during fall off, problem of Cracking；
3）Compared with traditional upper cover, for the utility model upper cover using aluminium as pole, T-type aluminium pole diameter is more than traditional T-type not
Become rusty steel pole（Generally Φ 2.5mm）, and T-type aluminium pole leads the increase of chaff contact area with aluminium（A diameter of Φ of contact surface
6.5mm）, can guarantee that aluminium leads chaff full weld, reduce the contact internal resistance that positive aluminium leads chaff and T-type aluminium pole, to reduce lithium electricity
The internal resistance in pond.
Description of the drawings
Fig. 1 is the structural schematic diagram of traditional lithium battery upper cover.
Fig. 2 is the cross-sectional view of traditional lithium battery upper cover.
Fig. 3 is the structural schematic diagram of the utility model lithium battery upper cover.
Fig. 4 is the cross-sectional view of the utility model lithium battery upper cover.
Fig. 5 is the cross-sectional view of the utility model lithium battery.
Reference sign：1- boss inner core, 2- cover boards substrate, 3- boss outer shroud, 4- insulator seal rings, 5- shells, 6-
Core, 7- anodes lead chaff, 8- liquid injection holes, 9- cathode and lead chaff and 10- gases storage cavity.
Specific implementation mode
With reference to specific drawings and examples, the utility model is described in further detail.
As shown in 3 ~ Fig. 5 of attached drawing, a kind of lithium ion battery in the present embodiment includes the shell for drawing cathode of lithium battery
5, the upper cover above the shell 5 and the core inside the shell 56 are covered, which is characterized in that the upper cover include with
5 matched cover board substrate 2 of shell, the boss outer shroud 3 for being inserted into 2 centre bore of cover board substrate and it is inserted into the boss outer shroud 3
Boss inner core 1, insulator seal ring 4 is equipped between 2 centre bore of the boss outer shroud 3 and cover board substrate, for drawing lithium battery just
The boss inner core 1 of pole is T-type aluminium pole, and the insulator seal ring 4 simultaneously will for T-type aluminium pole and shell 5 to insulate
Boss outer shroud 3 and cover board substrate 2 are sealed, and the T-type aluminium pole is led chaff 7 by anode and connect with 6 anode of core, described
Shell 5 is led chaff 9 by cathode and is connect with 6 cathode of core, the cover board substrate 2 be equipped with liquid injection hole 8, the liquid injection hole 8 with
Gas storage cavity 10 in shell 5 positioned at 6 top of core is connected, and is sealed using stainless steel lag screws in liquid injection hole 8, the gas
The storage space of institute's aerogenesis body during body storage cavity 10 is used as lithium battery, it is that aluminium leads chaff that the anode, which leads chaff 7,
It is that copper leads chaff that the cathode, which leads chaff 9, and the material of the cover board substrate 2, boss outer shroud 3 and shell 5 is stainless steel, described
The material of insulator seal ring 4 is that glass, a diameter of 2.5mm ~ 3.5mm of the T-type aluminium pole, and T-type aluminium pole lead foil with aluminium
The diameter of the contact area of item is about 6.5mm.
The utility model assembling process is that boss inner core 1 and boss outer shroud 3 are interference fit, are matched using cold extrusion completion
It closes, or the aluminum water of gained after the thawing of boss inner core 1 is cast on boss outer shroud 3, boss inner core 1 and boss outer shroud 3 become
It after entirety, is located on graphite jig together with cover board substrate 2, then installs insulator seal ring 4 additional, formed after high temperature sintering
Whole upper cover；
The material of insulator seal ring 4 is glass, and the melting range of glass is 400 ~ 600 DEG C, and the fusing point of aluminium is 660 DEG C, is controlled
Sintering temperature, boss inner core 1（T-type aluminium pole）Be not in fusing, during sintering, it is convex inert gas shielding need to be passed through
Platform inner core 1, boss outer shroud 3 and cover board substrate 2, guarantee will not be aoxidized because of high temperature, and glass sintering is using tunnel
There are gradual cooling region, 150 DEG C of temperature < after upper cover comes out from continuous tunnel furnace in formula sintering furnace, end；
Compared with traditional lithium battery, for the boss inner core 1 of the utility model upper cover using aluminium as pole, anode leads chaff 7
It only needs to lead chaff using aluminium, compared with traditional lithium battery upper cover leads chaff using aluminium nickel anode composite, be greatly saved
Cost；T-type aluminium pole diameter（About Φ 3mm）More than the diameter of traditional T-type stainless steel pole（About Φ 2.5mm）, can protect
Card aluminium leads chaff full weld, the contact internal resistance that positive aluminium leads chaff 7 and T-type aluminium pole is reduced, to reduce the internal resistance of lithium battery；This
Diameter after the boss inner core 1 of utility model upper cover is combined with boss outer shroud 3 is about Φ 6.5mm, and chaff 7 is led much larger than anode
Width, even if because production technology deviation cause anode lead chaff 7 weld deviation, also can guarantee that anode leads chaff 7 and upper cover
There are enough spacing, reduction anode to lead chaff 7 and closely lithium battery self discharge is caused to increase excessively with upper cover.
The utility model and embodiments thereof are described above, description is not limiting, shown in attached drawing
Also it is one of the embodiment of the utility model, practical structures are not limited thereto.All in all if this field it is common
Technical staff is enlightened by it, without deviating from the purpose of the present invention, is not inventively designed and the skill
The similar frame mode of art scheme and embodiment, all should belong to the protection range of the utility model.
Claims (6)
1. a kind of lithium ion battery includes the shell for drawing cathode of lithium battery（5）, cover in the shell（5）Top it is upper
Cover and be located at the shell（5）Internal core（6）, which is characterized in that the upper cover includes and shell（5）Matched cover board
Substrate（2）, be inserted into the cover board substrate（2）The boss outer shroud of centre bore（3）And it is inserted into the boss outer shroud（3）Boss inner core
（1）, the boss outer shroud（3）With cover board substrate（2）Insulator seal ring is equipped between centre bore（4）, for drawing lithium battery anode
Boss inner core（1）For T-type aluminium pole, the T-type aluminium pole leads chaff by anode（7）With core（6）Anode connection, it is described
Shell（5）Chaff is led by cathode（9）With core（6）Cathode connects.
2. a kind of lithium ion battery according to claim 1, it is characterised in that：The cover board substrate（2）It is equipped with fluid injection
Hole（8）, the liquid injection hole（8）With shell（5）It is interior to be located at core（6）The gas of top stores cavity（10）It is connected, the note
Fluid apertures（8）It is interior to be sealed using stainless steel lag screws.
3. a kind of lithium ion battery according to claim 1, it is characterised in that：The anode leads chaff（7）Foil is led for aluminium
Item, the cathode lead chaff（9）Chaff is led for copper.
4. a kind of lithium ion battery according to claim 1, it is characterised in that：The cover board substrate（2）, boss outer shroud
（3）And shell（5）Material be stainless steel.
5. a kind of lithium ion battery according to claim 1, it is characterised in that：The insulator seal ring（4）Material be
Glass.
6. a kind of lithium ion battery according to claim 1, it is characterised in that：A diameter of 2.5mm of the T-type aluminium pole
~3.5mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317516.2U CN208093668U (en) | 2018-03-07 | 2018-03-07 | A kind of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317516.2U CN208093668U (en) | 2018-03-07 | 2018-03-07 | A kind of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208093668U true CN208093668U (en) | 2018-11-13 |
Family
ID=64061926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820317516.2U Active CN208093668U (en) | 2018-03-07 | 2018-03-07 | A kind of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208093668U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887764A (en) * | 2019-01-24 | 2019-06-14 | 无锡凯帕德瑞科技有限公司 | The electrolyte and preparation method thereof of nickelic ternary system capacitor batteries |
| CN110223857A (en) * | 2019-06-13 | 2019-09-10 | 合肥康特微科技有限公司 | A kind of battery capacitor end cover mold with venthole |
| CN113675509A (en) * | 2021-08-13 | 2021-11-19 | 宁波亿纬创能锂电池有限公司 | Battery sealing structure and battery |
-
2018
- 2018-03-07 CN CN201820317516.2U patent/CN208093668U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887764A (en) * | 2019-01-24 | 2019-06-14 | 无锡凯帕德瑞科技有限公司 | The electrolyte and preparation method thereof of nickelic ternary system capacitor batteries |
| CN110223857A (en) * | 2019-06-13 | 2019-09-10 | 合肥康特微科技有限公司 | A kind of battery capacitor end cover mold with venthole |
| CN113675509A (en) * | 2021-08-13 | 2021-11-19 | 宁波亿纬创能锂电池有限公司 | Battery sealing structure and battery |
| CN113675509B (en) * | 2021-08-13 | 2024-06-11 | 宁波亿纬创能锂电池有限公司 | Battery sealing structure and battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240410 Address after: 430000 No. 37, Tianyuan street, Dongxihu District, Wuhan City, Hubei Province Patentee after: Wuhan Haocheng lithium Technology Co.,Ltd. Country or region after: China Address before: No.18 Xiaguang Road, Mashan street, Binhu District, Wuxi City, Jiangsu Province Patentee before: WUXI CAPATTERY TECHNOLOGY Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |