CN205723826U - Lamination coiling formula lithium ion battery - Google Patents
Lamination coiling formula lithium ion battery Download PDFInfo
- Publication number
- CN205723826U CN205723826U CN201620229155.7U CN201620229155U CN205723826U CN 205723826 U CN205723826 U CN 205723826U CN 201620229155 U CN201620229155 U CN 201620229155U CN 205723826 U CN205723826 U CN 205723826U
- Authority
- CN
- China
- Prior art keywords
- battery core
- core
- lamination
- lithium ion
- coiling
- 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.)
- Active
Links
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 20
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000003475 lamination Methods 0.000 title claims abstract description 18
- 239000003792 electrolyte Substances 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 29
- 230000004888 barrier function Effects 0.000 claims description 7
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract 7
- 239000007943 implant Substances 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 12
- 210000001787 dendrite Anatomy 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding 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
Landscapes
- Secondary Cells (AREA)
- Primary Cells (AREA)
Abstract
The utility model relates to a lamination coiling type lithium ion battery, include the casing and arrange the electric core subassembly in the casing in, the electric core subassembly is including coiling electric core and parcel at the inside lamination electricity core of coiling electric core, the upper end of casing is equipped with rather than matched with apron, be equipped with on the apron with the anodal post that the anodal utmost point ear of coiling electric core, lamination electricity core is connected, and with the negative pole post that the negative pole utmost point ear of coiling electric core, lamination electricity core is connected, the casing intussuseption is filled with electrolyte. The utility model discloses an electricity core subassembly comprises coiling formula electricity core and lamination formula electricity core, implants lamination formula's electric core in the middle of the core is rolled up in the coiling, has both filled the space in the middle of the coiling electricity core, has increased the security performance of battery again, has also increased the capacity of whole electric core simultaneously.
Description
Technical field
This utility model relates to lithium ion battery technology, is specifically related to a kind of lamination coiled lithium ion battery.
Background technology
Lithium ion battery has that energy density is big, output is high, discharge and recharge life-span length, pollution-free, operating temperature range width and the plurality of advantages such as self discharge is little.It is as novel high-energy chemistry power supply, is polluting and during energy crisis advances towards solving the mankind, lithium ion battery can because crossing stream, internal analysis Li dendrite causes short circuit, overcharge and wait a series of safety problem of initiation.
At present, rectangular lithium ion battery core strueture typically has a convoluted and cascade type: Winding type lithium ion cell electric core be a piece of positive plate is separated by with barrier film with a piece of negative plate after together with rotate around volume pin and to form, this structure is prone to make, industrial production efficiency is high, but use the core central hollow that winding is made, loosely organized, both positive and negative polarity contact is the tightst, owing to lithium ion stroke is longer, easily occur that analysis lithium causes short circuit, the core strueture battery of central hollow is when charge and discharge cycles simultaneously, easily dilatancy even part, thus have impact on capacity and the service life of battery, the security performance of battery is also affected, if increasing support frame structure as cylindrical battery inside battery core, then can cause the reduction of energy density.
Utility model content
The purpose of this utility model is to provide that a kind of stable performance, capacity be big, length in service life and can improve the lamination coiled lithium ion battery of energy density.
For achieving the above object, this utility model have employed techniques below scheme: includes housing and the battery core assembly being placed in housing, described battery core assembly includes winding battery core and being wrapped in winding laminated cell within battery core, the upper end of described housing is provided with the cover plate being matched therewith, described cover plate is provided with the positive terminal being connected with described winding battery core, the positive pole ear of laminated cell, and the negative terminal being connected with described winding battery core, the negative lug of laminated cell, it is filled with electrolyte in described housing.
Described winding battery core is formed by the positive plate stacked gradually, barrier film, negative plate winding.
Described laminated cell is formed by stacking by positive plate, negative plate and the barrier film be located between positive plate and negative plate.
Described battery core components welding is in housing；The outer end of described winding battery core is fixed by numeral adhesive tape.
As shown from the above technical solution, lamination coiled lithium ion battery described in the utility model, its battery core assembly is made up of takeup type battery core and lamination type electric core, stacked battery core is implanted in the middle of winding core, both the space in the middle of winding battery core had been filled up, add again the security performance of battery, too increase the capacity of whole battery core simultaneously.The positive and negative lug of winding battery core and laminated cell is respectively welded on the positive and negative terminals inside cover plate, by filling electrolyte in housing, participation both positive and negative polarity reacts, this lithium ion battery decreases the distance between winding battery core both positive and negative polarity, compensate for winding battery core and be the most closely easily formed the deficiency of Li dendrite because both positive and negative polarity contacts, advantageously reduce cell safety risk, improve the energy density of battery simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of battery core assembly of the present utility model；
Fig. 3 is that the A-A of Fig. 2 is to sectional view.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further:
As shown in Figures 1 to 3, the lamination coiled lithium ion battery of the present embodiment, including housing 1 and the battery core assembly 2 that is welded in housing 1, this battery core assembly 2 includes winding battery core 21 and being wrapped in winding laminated cell 22 within battery core 21, the upper end of housing 1 is provided with positive terminal 31 and negative terminal 32, the positive pole ear of laminated cell 22 is connected to form positive terminal 304 with the positive pole ear of winding battery core 21, the negative lug of laminated cell 22 is connected to form negative terminal 305 with the negative lug of winding battery core 21, positive terminal 304 is connected with positive terminal 31 and negative terminal 32 by connecting line respectively with negative terminal 305, housing 1 and cover plate 3 can form sealing structure, in housing 1, it is filled with electrolyte participates in both positive and negative polarity reaction.Many group battery core assemblies 2 can be installed, depending on the quantity of concrete battery core assembly 2 is according to practical situation in housing 1.
This winding battery core 21 is formed by the positive plate stacked gradually, barrier film, negative plate winding, and the outer end of winding battery core 21 is fixed by numeral adhesive tape 5.Laminated cell 22 is formed by stacking by positive plate, negative plate and the barrier film be located between positive plate and negative plate.
Lithium ion battery described in the utility model, compensate for winding battery core and is the most closely easily formed the deficiency of Li dendrite because of both positive and negative polarity contact, advantageously reduce cell safety risk, improve the energy density of battery simultaneously.
Embodiment described above is only to be described preferred implementation of the present utility model; not scope of the present utility model is defined; on the premise of without departing from this utility model design spirit; various deformation that the technical solution of the utility model is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that this utility model claims determine.
Claims (5)
1. a lamination coiled lithium ion battery, it is characterized in that: include housing (1) and the battery core assembly (2) being placed in housing (1), described battery core assembly (2) includes winding battery core (21) and being wrapped in the laminated cell (22) that winding battery core (21) is internal, the upper end of described housing (1) is provided with the cover plate (3) being matched therewith, described cover plate (3) is provided with and described winding battery core (21), the positive terminal (31) that the positive pole ear of laminated cell (22) is connected, and with described winding battery core (21), the negative terminal (32) that the negative lug of laminated cell (22) is connected, described housing is filled with electrolyte in (1).
Lamination coiled lithium ion battery the most according to claim 1, it is characterised in that: described winding battery core (21) is formed by the positive plate stacked gradually, barrier film, negative plate winding.
Lamination coiled lithium ion battery the most according to claim 1, it is characterised in that: described laminated cell (22) is formed by stacking by positive plate, negative plate and the barrier film be located between positive plate and negative plate.
Lamination coiled lithium ion battery the most according to claim 1, it is characterised in that: described battery core assembly (2) is welded in housing (1).
Lamination coiled lithium ion battery the most according to claim 2, it is characterised in that: the outer end of described winding battery core (21) is fixed by numeral adhesive tape (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620229155.7U CN205723826U (en) | 2016-03-23 | 2016-03-23 | Lamination coiling formula lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620229155.7U CN205723826U (en) | 2016-03-23 | 2016-03-23 | Lamination coiling formula lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205723826U true CN205723826U (en) | 2016-11-23 |
Family
ID=57314342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620229155.7U Active CN205723826U (en) | 2016-03-23 | 2016-03-23 | Lamination coiling formula lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205723826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808074A (en) * | 2018-07-04 | 2018-11-13 | 樊朝晖 | A kind of half winds lamination lithium ion battery cell and preparation method thereof |
| CN117276768A (en) * | 2023-11-20 | 2023-12-22 | 江苏中兴派能电池有限公司 | Cylindrical battery and preparation method thereof |
-
2016
- 2016-03-23 CN CN201620229155.7U patent/CN205723826U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808074A (en) * | 2018-07-04 | 2018-11-13 | 樊朝晖 | A kind of half winds lamination lithium ion battery cell and preparation method thereof |
| CN117276768A (en) * | 2023-11-20 | 2023-12-22 | 江苏中兴派能电池有限公司 | Cylindrical battery and preparation method thereof |
| CN117276768B (en) * | 2023-11-20 | 2024-02-20 | 江苏中兴派能电池有限公司 | Cylindrical battery and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |