CN206820028U - A kind of full lug quadrate lithium battery - Google Patents
A kind of full lug quadrate lithium battery Download PDFInfo
- Publication number
- CN206820028U CN206820028U CN201720803773.2U CN201720803773U CN206820028U CN 206820028 U CN206820028 U CN 206820028U CN 201720803773 U CN201720803773 U CN 201720803773U CN 206820028 U CN206820028 U CN 206820028U
- Authority
- CN
- China
- Prior art keywords
- pole
- groove
- bar hole
- cover plate
- positive poles
- 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.)
- Expired - Fee Related
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Classifications
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Connection Of Batteries Or Terminals (AREA)
Abstract
A kind of full lug quadrate lithium battery, including shell, shell include the penetrating square casing in both ends, and both ends difference fixed cover plate, the lower cover of housing, shell is interior to be provided with battery core, and upper cover plate is provided with bar hole, Positive Poles are fixed in the bar hole, is specially：Four sides of Positive Poles are designed with groove, and the bar hole hole wall of upper cover plate is stuck in the groove, insulating barrier are fixed between upper cover plate and Positive Poles, the upper cell wall of the groove is aluminium packing ring, and aluminium packing ring and Positive Poles are bi-body structure；Lower cover is provided with bar hole, and negative pole pole is fixed in the bar hole, is specially：Four sides of negative pole pole are designed with groove, and the bar hole hole wall of lower cover is stuck in the groove.Relative to prior art, technique effect of the present utility model is that the utility model is provided with bar hole on the cover board, this hole filling pole, increases the area of pole, battery high rate performance improves.
Description
Technical field
A kind of preparation method of full lug lithium battery is the utility model is related to, belongs to technical field of lithium batteries.
Background technology
At present because lithium battery has the advantages that high energy density, power density height, recycling often, in intelligent hand
It is widely used in the equipment such as machine, wearable device, electric bicycle and new-energy automobile, turns into and solve energy crisis and ring
The key of the global problems such as border pollution.Increasingly perfect with electric vehicle engineering, electric automobile and hybrid electric vehicle are from people
Daily life it is more and more nearer, there is huge business opportunity, while electric automobile for it to providing the lithium ion battery of energy
Performance propose higher requirement.
Utility model content
The technical problems to be solved in the utility model is：Widely used duricrust lithium battery in the market, typically takes
Stacked or takeup type.Stacked rectangular cell production efficiency is relatively low, uniformity is poor, discharge-rate is low, cycle life is short etc. asks
Topic, coiled square battery production efficiency is higher, but battery typically takes the mode that soldering polar ear drains, because lug quantity has
Limit, battery high rate performance are poor, it is difficult to need the application of high-multiplying power discharge in electric automobile and energy storage terminal.
The purpose of this utility model is and a kind of takeup type side designed in order to overcome the drawbacks described above of existing rectangular cell
The full lug battery of shape.The battery has the advantages that production efficiency is high, technique is simple, cyclicity is good, high rate performance protrudes.
The technical solution of the utility model is specially：
A kind of full lug quadrate lithium battery, including shell, shell include the penetrating square casing in both ends, the both ends point of housing
Other fixed cover plate, lower cover, shell is interior to be provided with battery core, and upper cover plate is provided with bar hole, Positive Poles are fixed in the bar hole,
Specially：Four sides of Positive Poles are designed with groove, and the bar hole hole wall of upper cover plate is stuck in the groove, upper cover plate with
Fixed upper insulating barrier between Positive Poles, the upper cell wall of the groove is aluminium packing ring, and aluminium packing ring and Positive Poles are bi-body structure；Under
Cover plate is provided with bar hole, and negative pole pole is fixed in the bar hole, is specially：Four sides of negative pole pole are designed with groove, under
The bar hole hole wall of cover plate is stuck in the groove, insulating barrier under being fixed between lower cover and negative pole pole, the lower groove of the groove
Wall is copper washer, and copper washer and negative pole pole are bi-body structure；Positive Poles, negative pole pole with lug and battery core all by connecting
Connect, lug is retractable bending without the part of welding；Upper cover plate is provided with safety valve, liquid injection hole, liquid injection hole fixing seal
Nail.
Upper O-ring is provided between Positive Poles and upper insulating barrier, lower O-ring is provided between negative pole pole and lower insulating barrier.
Upper insulating barrier, lower insulating barrier are all plastic parts.
Relative to prior art, technique effect of the present utility model is that the utility model is provided with bar hole on the cover board, this
Pole is filled in individual hole, increases the area of pole, and battery high rate performance improves.
Brief description of the drawings
Fig. 1 is the general structure schematic diagram of the utility model patent.
Fig. 2 is upper cover plate structural representation.
Fig. 3 is lower cover plate structure schematic diagram.
Fig. 4 is pole column structure schematic diagram.
Fig. 5 is that pole welds schematic diagram with battery core.
Fig. 6 is the schematic diagram of housing.
Embodiment
As shown in figures 1-6, a kind of full lug quadrate lithium battery, including shell, shell include the penetrating square shell in both ends
Body 6, both ends difference fixed cover plate 1, the lower cover 7 of housing 6, shell is interior to be provided with battery core 13.
Upper cover plate 1 is provided with bar hole, and Positive Poles 5 are fixed in the bar hole, is specially：Four sides of Positive Poles 5
Face is designed with groove, and the bar hole hole wall of upper cover plate 1 is stuck in the groove, is fixed between upper cover plate 1 and Positive Poles 5 absolutely
Edge layer 2, the upper cell wall of the groove is aluminium packing ring 4, and aluminium packing ring 4 and Positive Poles 5 can be bi-body structure, convenient for assembly.
Lower cover 7 is provided with bar hole, and negative pole pole 11 is fixed in the bar hole, is specially：Four sides of negative pole pole 11
Face is designed with groove, and the bar hole hole wall of lower cover 7 is stuck in the groove, under fixed between lower cover 7 and negative pole pole 11
Insulating barrier 8, the lower cell wall of the groove is copper washer 10, and copper washer 10 and negative pole pole 11 can be bi-body structure, convenient for assembly.
At A in Fig. 5, all by being welded with lug 30 and battery core 13, lug 30 does not have for Positive Poles 5, negative pole pole 11
The part for having welding is retractable bending, by stretching/contraction of the bending section of lug 30, can adjust battery core and pole away from
From, while the connection of pole and lug is not influenceed.The agitating friction weldering that is welded as of Positive Poles 5, negative pole pole 11 and lug, ginseng
See reference A in figure.
Upper cover plate 1 is provided with safety valve 12, liquid injection hole, fixing seal nail 14 after the completion of liquid injection hole fluid injection.
Lug is integrally formed with battery core, or the part that battery core extends out.
In order to which compared with smaller tremors, upper O-ring 3, negative pole pole 11 and lower insulation are provided between Positive Poles 5 and upper insulating barrier 2
Lower O-ring 9 is provided between layer 8.
For convenience, upper insulating barrier 2, lower insulating barrier 8 are all plastic parts.
Its manufacture method is：
First, by the full lug of positive pole of Positive Poles 5 and battery core 11 by as shown in Figure 4 using supersonic welding, electric resistance welding etc.
Welding manner connects, and welds negative pole pole 10 and the full tab welding of negative pole of battery core 11 in the same way.
Secondly, lower cover and housing are welded using agitating friction weldering, the battery core with pole is entered shell, negative pole pole exists
Housing bottom, pole is pulled outwardly using the screwed hole of three M3 in frock and pole（When drawing, the bending section of lug 30 is gradually stretched
Value）, after tension, copper washer 8 makes copper washer and negative pole pole weld together using agitating friction weldering on pad.
Then, upper cover plate 1 is covered, using agitating friction weldering welded cover plate 1 and housing 6, using three in frock and pole
M3 screwed hole is pulled outwardly pole, and after tension, aluminium packing ring 3 welds aluminium packing ring and Positive Poles using agitating friction weldering on pad
Together.
Finally, electrolyte is injected from the liquid injection hole of upper cover plate, using agitating friction weldering welding liquid injection port sealing nail 13, battery
Complete.
The utility model provides a kind of li battery shell, including upper cover plate, lower cover and housing.Upper and lower cover plates is provided with pole
Post, upper cover plate Positive Poles are negative pole pole on lower cover, and cover plate and shell material are aluminium alloy, upper and lower cover plates thickness 1-
1.5mm, housing use punch forming wall thickness 0.5mm.Positive Poles material is aluminium, and negative pole pole material is copper, pole and cover plate
Between for sealing ring seal.
Cover plate and housing are handled using differential arc oxidization technique, surface is formed high-quality intensified ceramic film.Significantly
The case hardness of material is improved degree, good abrasion resistance properties, good heat resistance and corrosion resistance, there is good insulation
Performance.
Positive Poles and negative pole pole are separately positioned on two of battery.
Cover plate uses agitating friction weldering with case weld.
Anode pole piece is that coated portion is welded using agitating friction weldering with cathode pole piece, and lug is rubbed with stirring after battery core combination
Wipe weldering welding.Aluminium packing ring and Positive Poles, copper washer and negative pole pole welding use agitating friction weldering.
The utility model provides a kind of structure of pole, and the full lug of battery core uses supersonic welding, electricity on the A of pole bottom surface
The modes such as welding resistance are welded, and water conservancy diversion area greatly increases, and pole also has conductive force, heat caused by inside battery core is dissipated from pole
Go out.
The utility model provides a kind of sealing means of pole and sealed for O-ring.
Above-described is only preferred embodiment of the present utility model, it is noted that for those skilled in the art
For, under the premise of the utility model general idea is not departed from, some changes and improvements can also be made, these should also be considered as
The scope of protection of the utility model.
Claims (3)
1. a kind of full lug quadrate lithium battery, including shell, shell include the penetrating square casing in both ends（6）, housing（6）Two
End difference fixed cover plate（1）, lower cover（7）, shell is interior to be provided with battery core（13）, it is characterised in that：
Upper cover plate（1）Bar hole is provided with, Positive Poles are fixed in the bar hole（5）, it is specially：Positive Poles（5）Four
Side is designed with groove, upper cover plate（1）Bar hole hole wall be stuck in the groove, in upper cover plate（1）With Positive Poles（5）Between
Insulating barrier in fixation（2）, the upper cell wall of the groove is aluminium packing ring（4）, aluminium packing ring（4）With Positive Poles（5）For bi-body structure；
Lower cover（7）Provided with bar hole, negative pole pole is fixed in the bar hole（11）, it is specially：Negative pole pole（11）Four
Side is designed with groove, lower cover（7）Bar hole hole wall be stuck in the groove, in lower cover（7）With negative pole pole（11）It
Between fixed lower insulating barrier（8）, the lower cell wall of the groove is copper washer（10）, copper washer（10）With negative pole pole（11）For two body knots
Structure；
Positive Poles（5）, negative pole pole（11）All by with lug（30）With battery core（13）Connection, lug（30）Do not weld
Part is retractable bending；
Upper cover plate（1）Provided with safety valve（12）, liquid injection hole, liquid injection hole fixing seal nail（14）.
2. full lug quadrate lithium battery as claimed in claim 1, it is characterised in that：Positive Poles（5）With upper insulating barrier（2）It
Between be provided with upper O-ring（3）, negative pole pole（11）With lower insulating barrier（8）Between be provided with lower O-ring（9）.
3. full lug quadrate lithium battery as claimed in claim 2, it is characterised in that：Upper insulating barrier（2）, lower insulating barrier（8）All
For plastic parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720803773.2U CN206820028U (en) | 2017-07-05 | 2017-07-05 | A kind of full lug quadrate lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720803773.2U CN206820028U (en) | 2017-07-05 | 2017-07-05 | A kind of full lug quadrate lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206820028U true CN206820028U (en) | 2017-12-29 |
Family
ID=60761963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720803773.2U Expired - Fee Related CN206820028U (en) | 2017-07-05 | 2017-07-05 | A kind of full lug quadrate lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206820028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544083A (en) * | 2018-06-25 | 2018-09-18 | 大族激光科技产业集团股份有限公司 | Power battery, head cover negative pole structure and its welding method |
-
2017
- 2017-07-05 CN CN201720803773.2U patent/CN206820028U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544083A (en) * | 2018-06-25 | 2018-09-18 | 大族激光科技产业集团股份有限公司 | Power battery, head cover negative pole structure and its welding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 Termination date: 20200705 |