CN206301892U - Collapsible battery core and secondary button lithium battery - Google Patents
Collapsible battery core and secondary button lithium battery Download PDFInfo
- Publication number
- CN206301892U CN206301892U CN201621431485.0U CN201621431485U CN206301892U CN 206301892 U CN206301892 U CN 206301892U CN 201621431485 U CN201621431485 U CN 201621431485U CN 206301892 U CN206301892 U CN 206301892U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- battery core
- substrate
- connector
- pole pieces
- 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
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 11
- 230000004888 barrier function Effects 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 38
- 239000011248 coating agent Substances 0.000 claims description 32
- 238000000576 coating method Methods 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000005030 aluminium foil Substances 0.000 claims description 3
- 239000011889 copper foil Substances 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009776 industrial production Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000007787 solid 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
-
- 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
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a kind of collapsible battery core and secondary button lithium battery, collapsible battery core folding electric core, including multiple first pole pieces, multiple second pole pieces, multiple diaphragms, multiple first connectors and multiple second connectors；Multiple first pole pieces and the second pole piece are rotated and are stacked, and multiple diaphragms are stacked between adjacent the first pole piece and the second pole piece respectively, form columnar core；First connector is connected between two adjacent the first pole pieces, so that multiple first pole pieces are sequentially connected by multiple first connectors, forms positive plate；Second connector is connected between two adjacent the second pole pieces, so that multiple second pole pieces are sequentially connected by multiple second connectors, forms negative plate.Collapsible battery core of the present utility model barrier film with continuous positive plate and negative plate interlocks to be stacked and is formed, and manufacture craft is simple, reduces production difficulty, improves efficiency, is adapted to large-scale industrial production.
Description
Technical field
The utility model is related to technical field of lithium ion, more particularly to a kind of collapsible battery core and with the battery core
Secondary button lithium battery.
Background technology
Secondary fastening lithium ionic cell is mainly used in miniaturized electronic product, is widely used in the electricity of portable electron device
Source.The core strueture of current this kind of battery is broadly divided into takeup type structure and accordion structure, and takeup type structural advantages are batteries
Consistency of performance is good, but volume capacity density is low, low space utilization in shell；Accordion structure is relative to takeup type structural capacity
Height, space availability ratio is preferable, but the processing procedure of current accordion structure is more difficult, and technique is complex, is unfavorable for high-volume work
Industry is produced.
Utility model content
The technical problems to be solved in the utility model is, for above-mentioned existing defect, there is provided one kind has volume high
Capacity density, high power density and the simple collapsible battery core of making and the secondary button lithium battery with the battery core.
The utility model solves the technical scheme that its technical problem used：A kind of collapsible battery core is provided, including it is many
Individual first pole piece, multiple second pole pieces, multiple diaphragms, multiple first connectors and multiple second connectors；It is multiple described
First pole piece and the second pole piece are rotated and are stacked, and multiple diaphragms are stacked in adjacent first pole piece and the second pole respectively
Between piece, columnar core is formed；First connector is connected between first pole piece of adjacent two, so that multiple institutes
State the first pole piece to be sequentially connected by multiple first connector, form positive plate；Second connector is connected to adjacent
Two second pole pieces between so that multiple second pole piece is sequentially connected by multiple second connectors, shape
Into negative plate.
Preferably, first pole piece, the second pole piece are rounded；The diaphragm is rounded.
Preferably, the diaphragm with diameter greater than first pole piece and the diameter of the second pole piece.
Preferably, multiple first connectors are divided into two groups, are located relatively at the both sides of the columnar core；
Multiple second connectors are divided into two groups, are located relatively at the both sides of the columnar core, and with described first
Connector is separately.
Multiple described first connector for being preferably located at the same side is located along the same line；Positioned at the multiple of the same side
Second connector is located along the same line.
Preferably, in multiple first pole pieces, including a first one side pole piece and multiple first two-sided pole pieces；Institute
State the positive electrode coating that the first one side pole piece is formed on one surface of the first substrate including first substrate and coating；
The first two-sided pole piece includes that first substrate and coating are formed in the first substrate with respect to the positive pole material on two surfaces
Material coating；
In multiple second pole pieces, including a second one side pole piece and multiple second two-sided pole pieces；Described second
One side pole piece includes the negative material coating that second substrate and coating are formed on two surfaces of the second substrate；Described
Two two-sided pole pieces include that second substrate and coating are formed in the second substrate with respect to the negative material coating on two surfaces.
Preferably, the first substrate is aluminum foil plate；First connector is aluminium foil part；
The second substrate is copper foil plate；Second connector is Copper Foil part.
Preferably, relative two surfaces of the columnar core, one of surface is the first one side pole piece, another
Surface is the second one side pole piece, and the first one side pole piece is with the positive electrode coating thereon towards described in adjacent
Diaphragm, the second one side pole piece is with the negative material coating thereon towards the adjacent diaphragm.
Preferably, the collapsible battery core is also coated on the insulating barrier of the columnar core circumferential lateral surface.
The utility model also provides a kind of secondary button lithium battery, including the collapsible battery core of any of the above-described and outer
Shell；The collapsible battery core is arranged in the shell, and it contacts conduction with the shell respectively with respect to two surfaces.
The beneficial effects of the utility model：Collapsible battery core barrier film with continuous positive plate and negative plate interlocks stacked
Formed, manufacture craft is simple, reduce production difficulty, improve efficiency, be adapted to large-scale industrial production.
In addition, be arranged in shell to be made secondary button lithium battery by by the collapsible battery core, collapsible battery core
Two surfaces make full use of space in shell by contacting conduction with shell so that there is secondary button lithium battery volume high to hold
Metric density, high power density and long circulation life.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the structural representation of the collapsible battery core of the embodiment of the utility model one；
Fig. 2 is the structural representation after positive plate launches in Fig. 1；
Fig. 3 is the structural representation after negative plate launches in Fig. 1；
Fig. 4 is collapsible battery core positive plate shown in Fig. 1 and negative plate laminating process schematic diagram.
Specific embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, accompanying drawing is now compareed detailed
Illustrate specific embodiment of the present utility model.
As Figure 1-3, the collapsible battery core of the embodiment of the utility model one, including multiple first pole pieces 11, Duo Ge
Two pole pieces 21, multiple diaphragms 30, multiple first connectors 12 and multiple second connectors 22.Multiple first pole pieces 11 and the
Two pole pieces 21 are rotated and are stacked, and multiple diaphragms 30 are stacked between adjacent the first pole piece 11 and the second pole piece 21 respectively, are formed
Columnar core.
First connector 12 is connected between two adjacent the first pole pieces 11, so that multiple first pole pieces 11 are by multiple
First connector 12 is sequentially connected, and forms positive plate 10, in the bar string structure of sequential like, after expansion as shown in Figure 2.
Second connector 22 is connected between two adjacent the second pole pieces 21, so that multiple second pole pieces 21 are by multiple
Second connector 22 is sequentially connected, and forms negative plate 20, in continuous bar string structure, after expansion as shown in Figure 3.
In the present embodiment, the first pole piece 11, the second pole piece 21 rounded (can be circular, or ellipse).
Diaphragm 30 also corresponds to rounded.Also, diaphragm 30 with diameter greater than the first pole piece 11 and the diameter of the second pole piece 21, be used for
Completely cut off the first pole piece 11 and the second pole piece 12, it is to avoid both are in contact.
Two adjacent the first pole pieces 11 are coupled together by first connector 11.First connector 11 is adjacent two
There is enough width, to facilitate two adjacent the first pole pieces 11 to be stacked relatively between individual first pole piece 11.
In multiple first pole pieces 11, including a first one side pole piece 110 and multiple first two-sided pole pieces；First one side
Pole piece 110 includes the positive electrode coating that first substrate and coating are formed on one surface of first substrate, first substrate
Another side is not coated by positive electrode coating and blank exposes first substrate, forms metal covering.First two-sided pole piece includes first
Substrate and coating are formed in first substrate with respect to the positive electrode coating on two surfaces.In the positive plate 10 for launching, the
One one side pole piece 110 is located at an outside of the two opposite outer of positive plate 10, and remaining first pole piece 11 is the first two-sided pole piece.
In the present embodiment, first substrate is aluminum foil plate.First connector 12 is preferably aluminium foil part, can be solid by welding manner
Surely it is connected between two adjacent first substrates of the first pole piece 11.
Two adjacent the second pole pieces 21 are coupled together by second connector 22.Second connector 22 is adjacent two
There is enough width, to facilitate two adjacent the second pole pieces 21 to be stacked relatively between individual second pole piece 21.
In multiple second pole pieces 21, including a second one side pole piece 210 and multiple second two-sided pole pieces；Second one side
Pole piece 210 includes the negative material coating that second substrate and coating are formed on two surfaces of second substrate, second substrate
Another side is not coated by negative material coating and blank exposes second substrate, forms metal covering.Second two-sided pole piece includes second
Substrate and coating are formed in second substrate with respect to the negative material coating on two surfaces.In the negative plate 20 for launching, the
Two one side pole pieces 210 are located at an outside of the two opposite outer of negative plate 20, and remaining second pole piece 21 is the second two-sided pole piece.
In the present embodiment, second substrate is copper foil plate；Second connector 22 is Copper Foil part, can be fixed by welding manner and connected
It is connected between two adjacent second substrates of the second pole piece 21.
When stacked, as shown in figure 4, positive plate 10 and negative plate 20 are staggeredly placed with a predetermined angle, by the first pole
The pole piece 21 of piece 11 and second is rotated and is stacked, and stacks a diaphragm between adjacent the first pole piece 11 and the second pole piece 21
30, form columnar core.
Wherein, predetermined angle can be 90 °, or acute angle or obtuse angle etc., as long as the first pole piece 11 and second can be caused
Pole piece 21 staggers in laminating process.
In the stacked columnar core for being formed, with reference to Fig. 1, multiple first connectors 12 are divided into two groups, are located relatively at column core
The both sides of body；Multiple second connectors 22 are divided into two groups, are located relatively at the both sides of columnar core, and with the phase of the first connector 12
Interval.
Additionally, multiple first connectors 12 positioned at the same side are located along the same line；Positioned at multiple the second of the same side
Connector 22 is located along the same line.Two group of first line and two group of second line of connector 22 of connector 12 are with pre- clamp
Intersect at angle.
Relative two surfaces of columnar core, one of surface is the first one side pole piece 110, Ling Yibiao of positive plate 10
Face is the second one side pole piece 210 of negative plate 20.First one side pole piece 110 with positive electrode coating thereon towards it is adjacent every
Diaphragm 30, the metal covering for exposing first substrate can be used to contact conduction with the shell of battery.The second one side pole piece 210 is with thereon
Towards adjacent diaphragm 30, the metal covering for exposing second substrate can be used to be contacted with the shell of battery and leads negative material coating
Electricity.
Due to not setting the extreme ear structure for stretching out on positive plate 10 and negative plate 20, manufacturing process steps are reduced, be stacked and formed
The extreme ear structure that does not also stretch out of battery core two ends, reduce overall volume and take up room.
Further, collapsible battery core is also coated on the insulating barrier (such as gummed paper) of columnar core circumferential lateral surface, with steady
Core strueture is determined while preventing the shell contact short circuit of battery core and battery.
The secondary button lithium battery of the embodiment of the utility model one, including above-mentioned collapsible battery core and shell.Fold
Formula battery core is arranged in shell, and it contacts conduction with shell respectively with respect to two surfaces.
With reference to Fig. 1-3, in two surfaces of collapsible battery core, one be positive plate 10 the first one side pole piece 110 gold
Category face, another is the metal covering of the second one side pole piece 210 of negative plate 20, and metal covering can closely be connected with housing first face, lead
Good electrical property, internal resistance is low, and large current discharging capability is excellent.
The collapsible battery core makes full use of its inner space, volume capacity density due to no extreme ear structure in shell
Height, while reducing production process, improves process efficiency.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical fields, are similarly included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of collapsible battery core, it is characterised in that including multiple first pole pieces, multiple second pole pieces, multiple diaphragms, multiple
First connector and multiple second connectors；Multiple first pole pieces and the second pole piece are rotated and are stacked, multiple barrier films
Piece is stacked between adjacent first pole piece and the second pole piece respectively, forms columnar core；The first connector connection
Between two adjacent first pole pieces, so that multiple first pole pieces are connected successively by multiple first connectors
Connect, form positive plate；Second connector is connected between second pole piece of adjacent two, so that multiple described second
Pole piece is sequentially connected by multiple second connector, forms negative plate.
2. collapsible battery core according to claim 1, it is characterised in that first pole piece, the second pole piece are rounded；Institute
State diaphragm rounded.
3. collapsible battery core according to claim 2, it is characterised in that the diaphragm with diameter greater than first pole
The diameter of piece and the second pole piece.
4. collapsible battery core according to claim 1, it is characterised in that multiple first connectors are divided into two groups, phase
It is pointed to the both sides of the columnar core；
Multiple second connectors are divided into two groups, are located relatively at the both sides of the columnar core, and be connected with described first
Part is separately.
5. collapsible battery core according to claim 4, it is characterised in that positioned at multiple described first connector of the same side
It is located along the same line；Multiple described second connector positioned at the same side is located along the same line.
6. collapsible battery core according to claim 1, it is characterised in that in multiple first pole pieces, including one the
One one side pole piece and multiple first two-sided pole pieces；It is described that the first one side pole piece includes that first substrate and coating are formed in
Positive electrode coating on one surface of first substrate；The first two-sided pole piece includes that first substrate and coating are formed in institute
First substrate is stated with respect to the positive electrode coating on two surfaces；
In multiple second pole pieces, including a second one side pole piece and multiple second two-sided pole pieces；Second one side
Pole piece includes the negative material coating that second substrate and coating are formed on two surfaces of the second substrate；Described second pair
Face pole piece includes that second substrate and coating are formed in the second substrate with respect to the negative material coating on two surfaces.
7. collapsible battery core according to claim 6, it is characterised in that the first substrate is aluminum foil plate；Described first
Connector is aluminium foil part；
The second substrate is copper foil plate；Second connector is Copper Foil part.
8. collapsible battery core according to claim 6, it is characterised in that relative two surfaces of the columnar core, its
In surface be the first one side pole piece, another surface is the second one side pole piece, and the first one side pole piece is with it
On the positive electrode coating towards the adjacent diaphragm, the second one side pole piece is with the negative material thereon
Coating is towards the adjacent diaphragm.
9. the collapsible battery core according to claim any one of 1-8, it is characterised in that the collapsible battery core also includes bag
Overlay on the insulating barrier of the columnar core circumferential lateral surface.
10. a kind of secondary button lithium battery, it is characterised in that including the collapsible battery core described in claim any one of 1-9 with
And shell；The collapsible battery core is arranged in the shell, and it contacts conduction with the shell respectively with respect to two surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621431485.0U CN206301892U (en) | 2016-12-23 | 2016-12-23 | Collapsible battery core and secondary button lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621431485.0U CN206301892U (en) | 2016-12-23 | 2016-12-23 | Collapsible battery core and secondary button lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206301892U true CN206301892U (en) | 2017-07-04 |
Family
ID=59205381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621431485.0U Expired - Fee Related CN206301892U (en) | 2016-12-23 | 2016-12-23 | Collapsible battery core and secondary button lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206301892U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108682755A (en) * | 2018-05-09 | 2018-10-19 | 广东弘捷新能源有限公司 | Button cell and its manufacturing method |
| CN110112456A (en) * | 2019-06-06 | 2019-08-09 | 东莞市能优能源科技有限公司 | Lap wound battery core and the method for folding battery core and being utilized respectively its production battery |
| CN112534606A (en) * | 2020-03-12 | 2021-03-19 | 宁德新能源科技有限公司 | Electrode assembly and battery |
-
2016
- 2016-12-23 CN CN201621431485.0U patent/CN206301892U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108682755A (en) * | 2018-05-09 | 2018-10-19 | 广东弘捷新能源有限公司 | Button cell and its manufacturing method |
| CN110112456A (en) * | 2019-06-06 | 2019-08-09 | 东莞市能优能源科技有限公司 | Lap wound battery core and the method for folding battery core and being utilized respectively its production battery |
| CN110112456B (en) * | 2019-06-06 | 2024-05-03 | 东莞市能优能源科技有限公司 | Lap wound cell and folded cell and method for manufacturing battery by using same |
| CN112534606A (en) * | 2020-03-12 | 2021-03-19 | 宁德新能源科技有限公司 | Electrode assembly and battery |
| CN112534606B (en) * | 2020-03-12 | 2022-05-20 | 宁德新能源科技有限公司 | Electrode assembly and battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 east side of the 4th floor of Tuobang Industrial Park, Liyuan Industrial Park, Langxin community, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN TOPBAND BATTERY Co.,Ltd. Address before: 518000 floor 4, plant 2, Tuobang Industrial Park, Liyuan Industrial Zone, Langxin community, Shiyan street, Bao'an District, Shenzhen, Guangdong Province Patentee before: SHENZHEN TOPBAND NEW ENERGY Co.,Ltd. |
|
| 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: 20170704 |