CN206878123U - A kind of lithium ion battery of hoist capacity - Google Patents
A kind of lithium ion battery of hoist capacity Download PDFInfo
- Publication number
- CN206878123U CN206878123U CN201720746865.1U CN201720746865U CN206878123U CN 206878123 U CN206878123 U CN 206878123U CN 201720746865 U CN201720746865 U CN 201720746865U CN 206878123 U CN206878123 U CN 206878123U
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- Prior art keywords
- special
- battery
- lithium ion
- collector
- barrier film
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- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 15
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 230000004888 barrier function Effects 0.000 claims abstract description 22
- 238000005538 encapsulation Methods 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims abstract description 12
- 229920006280 packaging film Polymers 0.000 claims abstract description 5
- 239000012785 packaging film Substances 0.000 claims abstract description 5
- 238000004806 packaging method and process Methods 0.000 claims abstract description 3
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 230000035800 maturation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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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- Secondary Cells (AREA)
Abstract
The utility model discloses a kind of lithium ion battery of hoist capacity, including battery core, packaging electric core packaging film and with battery core end welding lug, the battery core includes being formed in being staggeredly stacked after barrier film encapsulates by special-shaped positive plate and/or special-shaped negative plate, special-shaped positive plate is identical with the configuration of special-shaped negative plate, top is equipped with lug boss, and lug boss side leans out end provided with collector；Collector leans out end and is exposed independent from outside during above-mentioned encapsulation, and the tab welding is leant out on end in collector.The utility model lithium ion battery structure designs, and to greatest extent using battery space, lifts the design capacity of battery, improves battery energy density.
Description
Technical field
It the utility model is related to field of lithium ion battery, more particularly to a kind of lithium ion battery of hoist capacity.
Background technology
At present, the power Soft Roll polymer Li-ion battery of each Li electricity enterprises production is commonly rectangle, in electrokinetic cell
During making, for spot welding lug typically all by the way of directly welding, such design requirement closedtop width reserves more sizes, and this
Portion size is not utilized after battery core is made, and has directly influenced energy density lifting.
Therefore, the prior art is defective, it is necessary to improve.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of lithium ion battery of hoist capacity.
The technical solution of the utility model is as follows：
A kind of lithium ion battery of hoist capacity, including the packaging film of battery core, packaging electric core and with battery core end welding
Lug, the battery core include being formed in being staggeredly stacked after barrier film encapsulates by special-shaped positive plate and/or special-shaped negative plate, abnormity
Positive plate is identical with the configuration of special-shaped negative plate, and top is equipped with lug boss, and lug boss side leans out end provided with collector；It is above-mentioned
Collector leans out end and is exposed independent from outside during encapsulation, and the tab welding is leant out on end in collector.
It is preferred that the special-shaped negative pole chip size is greater than the special-shaped positive pole chip size.
It is preferred that the barrier film encapsulation is by a upper strata barrier film and lower floor's barrier film interval abnormity positive plate or special-shaped negative plate
Encapsulation forms.
Using such scheme, the design of the utility model lithium ion battery structure, battery space, lifting are utilized to greatest extent
The design capacity of battery, improve battery energy density.
Brief description of the drawings
Fig. 1 is special-shaped positive plate of the present utility model/special-shaped negative plate structure schematic diagram；
Fig. 2 is special-shaped positive plate of the present utility model/special-shaped negative plate barrier film encapsulating structure schematic diagram；
Fig. 3 is battery core of the present utility model and tab welding structural representation；
Fig. 4 is resultant battery schematic diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Referring to figs. 1 to shown in Fig. 4, the utility model provides a kind of lithium ion battery of hoist capacity, including battery core, encapsulation
The packaging film of battery core and the lug 4 with the welding of battery core end, the battery core are included by special-shaped positive plate and/or special-shaped negative plate 2
Formed after barrier film encapsulates in being staggeredly stacked, special-shaped positive plate is identical with the configuration of special-shaped negative plate 2, and top is equipped with projection
Portion, lug boss side lean out end 1 provided with collector；Collector leans out end 1 and is exposed independent from outside during above-mentioned encapsulation, and the lug 4 welds
Collector is connected on to lean out on end 1.
Wherein, the special-shaped negative pole chip size is greater than the special-shaped positive pole chip size.The barrier film encapsulation is by a upper strata
Barrier film and the encapsulation of lower floor's barrier film interval abnormity positive plate or special-shaped negative plate 2 form.
Specifically, lithium ion battery preparation technology of the present utility model is as follows：
By taking the rectangle electrokinetic cell of routine as an example, in design, pole piece shape is designed to convex, by between lug 4
Space is filled, and by this design, the inner space utilization rate of battery is big, and the design capacity of battery can more easily reach.
S1：Made according to Fig. 1 and meet some special-shaped positive plates of size and special-shaped negative plate, collector leans out end 1 and is used for
Spot welding lug；The cathode pole piece size is greater than the anode pole piece.
S2：Membrane bag making machine provides a upper strata barrier film and lower floor's barrier film, will bag special-shaped positive plate or abnormity it is negative
Pole piece is in spacing and is layered on lower floor's barrier film, and collector leans out end and exposed outside lower floor's barrier film, and barrier film alignment in upper strata is covered
Lower floor's barrier film is covered, then by heating effect, levels barrier film is enclosed in together, forms individual layer pole piece barrier film complex 3.
S3：The complex 3 made neatly is put into material box, is put on laminating equipment, carries out lamination.
S4：The battery core folded is put into fixture, soldering polar ear is carried out using spot-welding equipment（As shown in Figure 3）.
S5：Battery core is put into and rushed in the good packaging film of shape, carries out top side encapsulation, Fig. 4 is the battery pattern after being made, dotted line
Region is seal region.
In the utility model, special-shaped positive plate and special-shaped negative plate only need one kind that complex, certainly, both of which is made
Complex, which is made, can also realize that simply cost is higher.
The embodiment of battery capacity can be provided for proof the utility model below：
Embodiment 1
By taking model 9090E5-3.7V-10Ah as an example, battery specifications are thickness 9.0mm, width 9.0mm, height 145mm.Pole
Ear spacing is 35mm.Main material is 5 using NCM ratios:3:2.
Comparative example is the battery core parameter that existing maturation process is made, and embodiment is that the battery core made using the invented technology is joined
Number.It is external it is consistent in the case of data such as following table：
| Project | Average size/Ah | Gravimetric energy density/wh/kg | Volume energy density/wh/L |
| Comparative example | 10.46 | 205.0 | 329.5 |
| Embodiment | 11.01 | 211.2 | 346.8 |
| Enhancing rate | 5.2% | 3.0% | 5.3% |
Embodiment 2
By taking model 90E2K6-3.2V-20Ah as an example, battery specifications are thickness 9.0mm, width 142mm, height 196mm.Pole
Ear spacing is 60mm.Main material uses LFP.
Comparative example is the battery core parameter that existing maturation process is made, and embodiment is that the battery core made using the invented technology is joined
Number.It is external it is consistent in the case of data such as following table：
| Project | Average size/Ah | Gravimetric energy density/wh/kg | Volume energy density/wh/L |
| Comparative example | 20.62 | 154.6 | 263.4 |
| Embodiment | 21.14 | 156.6 | 270.0 |
| Enhancing rate | 2.5% | 1.3% | 2.5% |
Embodiment 3
By taking model 90E0T2-3.7V-32Ah as an example, battery specifications are thickness 9.0mm, width 140mm, height 272mm.Pole
Ear spacing is 70mm.Main material is 1 using NCM ratios:1:1.
Comparative example is the battery core parameter that existing maturation process is made, and embodiment is that the battery core made using the invented technology is joined
Number.It is external it is consistent in the case of data such as following table：
| Project | Average size/Ah | Gravimetric energy density/wh/kg | Volume energy density/wh/L |
| Comparative example | 33.20 | 190.9 | 358.4 |
| Embodiment | 34.11 | 194.2 | 368.3 |
| Enhancing rate | 2.7% | 1.7% | 2.7% |
Three groups of embodiments from experiment it was found that, lifting of the invention for energy density be it is contributive, either
For LFP or NCM systems, or for different models, energy density has different degree liftings.
Preferred embodiment of the present utility model is these are only, is not limited to the utility model, it is all in this practicality
All any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (3)
1. a kind of lithium ion battery of hoist capacity, including the packaging film of battery core, packaging electric core and the pole with the welding of battery core end
Ear, it is characterised in that the battery core include by special-shaped positive plate and/or special-shaped negative plate after barrier film encapsulates in being staggeredly stacked and
Into special-shaped positive plate is identical with the configuration of special-shaped negative plate, and top is equipped with lug boss, and lug boss side is visited provided with collector
Go out end；Collector leans out end and is exposed independent from outside during above-mentioned encapsulation, and the tab welding is leant out on end in collector.
2. the lithium ion battery of hoist capacity according to claim 1, it is characterised in that the special-shaped negative pole chip size will
More than the special-shaped positive pole chip size.
3. the lithium ion battery of hoist capacity according to claim 1 or 2, it is characterised in that the barrier film encapsulation is by one
Upper strata barrier film and the encapsulation of lower floor's barrier film interval abnormity positive plate or special-shaped negative plate form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720746865.1U CN206878123U (en) | 2017-06-23 | 2017-06-23 | A kind of lithium ion battery of hoist capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720746865.1U CN206878123U (en) | 2017-06-23 | 2017-06-23 | A kind of lithium ion battery of hoist capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206878123U true CN206878123U (en) | 2018-01-12 |
Family
ID=61331546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720746865.1U Active CN206878123U (en) | 2017-06-23 | 2017-06-23 | A kind of lithium ion battery of hoist capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206878123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963318A (en) * | 2018-07-23 | 2018-12-07 | 深圳市聚和源科技有限公司 | A kind of Special-shaped lithium battery and preparation method thereof |
-
2017
- 2017-06-23 CN CN201720746865.1U patent/CN206878123U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963318A (en) * | 2018-07-23 | 2018-12-07 | 深圳市聚和源科技有限公司 | A kind of Special-shaped lithium battery and preparation method thereof |
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| GR01 | Patent grant | ||
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Effective date of registration: 20190704 Granted publication date: 20180112 |
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| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220411 Granted publication date: 20180112 |
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Effective date of registration: 20231127 Granted publication date: 20180112 |
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