CN209401788U - A kind of cylindrical battery - Google Patents
A kind of cylindrical battery Download PDFInfo
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- CN209401788U CN209401788U CN201822252028.0U CN201822252028U CN209401788U CN 209401788 U CN209401788 U CN 209401788U CN 201822252028 U CN201822252028 U CN 201822252028U CN 209401788 U CN209401788 U CN 209401788U
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- battery
- tab
- circuit board
- flexible circuit
- connecting portion
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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
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Abstract
The utility model belongs to battery technology field more particularly to a kind of cylindrical battery, comprising: battery core, battery core both ends are respectively equipped with the first tab and the second tab；Flexible circuit board is connect with the first tab and the second tab；First tab is forwarded to second tab one end by flexible circuit board；Battery case, for accommodating battery core and flexible circuit board, battery case is equipped with slot rolling；Nut cap is covered on battery case.Compared with the existing technology, first, the utility model replaces metal tape to transfer by using flexible circuit board, improves the effect and connection effect of switching, reduces the failure rate of battery, improves the service life of battery.Second, the utility model replaces available circuit plate by using flexible circuit board, increases possessive volume of the battery core in battery, improves the energy density of battery.Third, the utility model can improve the heat dissipation performance of battery by using flexible circuit board, improve the security performance and service life of battery.
Description
Technical field
The utility model belongs to battery technology field more particularly to a kind of cylindrical battery.
Background technique
With the demand sharp increase of digital product, lithium ion battery also develops rapidly, it has also become International Electrochemical research
One of hot fields, chemical property, security performance, specific energy of flexible packing lithium ion battery etc. are with the obvious advantage, and shape
It can arbitrarily be customized with capacity, replacement model is at low cost；Cylindrical battery has many advantages, such as high production efficiency, high yield rate.
However, in the prior art, cylindrical battery core is general due to the restriction of cylindrical battery self character and manufacturing process
Anode ear and negative electrode lug be arranged in the both ends of battery core, but such setting, on the one hand, the assembling for considerably increasing battery core is difficult
Degree, so that the packaging efficiency of battery core substantially reduces；On the other hand, such that the space utilization that can also reduce cylindrical battery is set
Rate, to reduce the energy density of finished battery.
In view of the above problems, disclose a kind of cylindrical battery core in patent document CN201720036683.5, described the
One tab is transferred to one end of second tab by metal tape.But the core strueture is easy to appear following problems: 1) metal
Band is transferred, and usually requires to be welded to connect in technique, bending switching, and by metal tape and is welded on, due to first
Tab and metal tape are relatively fine, and the difficulty of human weld is larger, influence production efficiency, and welding effect is bad, weld
It is easy to disconnect；2) and metal tape itself is tiny is easily broken off, and can also make to metal tape in the process of bending switching and assembly
At damage, battery product is caused to be scrapped.
Utility model content
The purpose of this utility model is that: in view of the deficiencies of the prior art, and a kind of cylindrical battery is provided, it is existing to solve
The problem of cylindrical battery metal switching piece is easily broken off, and the welding is not firm.
To achieve the goals above, the utility model uses following technical scheme:
A kind of cylindrical battery, comprising:
Battery core, the battery core both ends are respectively equipped with the first tab and the second tab；
Flexible circuit board is connect with first tab and second tab；First tab passes through the flexibility
Wiring board is forwarded to second tab one end；
Battery case, for accommodating the battery core and the flexible circuit board, the battery case is equipped with slot rolling；
Nut cap is covered on the battery case.
As the preferred embodiment of cylindrical battery described in the utility model, the flexible circuit board includes:
First connecting portion is connect with first tab；
Second connecting portion is connect with second tab；
One end of flexible switching part, the flexibility switching part is connect with the first connecting portion, the flexibility switching part
The other end is connect with the second connecting portion.
As the preferred embodiment of cylindrical battery described in the utility model, an end face of the first connecting portion and the battery core
It is arranged in parallel, the other end of the second connecting portion and the battery core is arranged in parallel, the flexibility switching part and the battery core
Circumferential surface be arranged in parallel.
As the preferred embodiment of cylindrical battery described in the utility model, the slot rolling is arranged in the battery core and described second
Between interconnecting piece.
As the preferred embodiment of cylindrical battery described in the utility model, the flexibility switching part surface is equipped with high-temperature insulation
Film.
As the preferred embodiment of cylindrical battery described in the utility model, the high-temperature insulation film is PP film, PC film, PET
Film, PFA film, PTFE film.
As the preferred embodiment of cylindrical battery described in the utility model, the first connecting portion and the second connecting portion
Shape is round, rectangular, kidney-shaped or combinations thereof.
As the preferred embodiment of cylindrical battery described in the utility model, the depth of the slot rolling is 0.8 ~ 1.2mm.
As the preferred embodiment of cylindrical battery described in the utility model, the flexible circuit board with a thickness of 0.05 ~
0.2mm。
As the preferred embodiment of cylindrical battery described in the utility model, first tab and second tab are positive
Tab or negative electrode lug.
Compared with the existing technology, the utility model at least has the advantages that
1) flexible circuit board has the characteristics that solderability, and the utility model is carried out by using flexible circuit board instead of metal tape
Switching, improves the effect and connection effect of switching, reduces the failure rate of battery, improve the service life of battery；
2) thickness of flexible circuit board is less than the thickness of existing ordinary circuit board；The utility model is by using flexible circuitry
Plate replaces available circuit plate, increases possessive volume of the battery core in battery, improves the energy density of battery；
3) flexible circuit board has good thermal diffusivity；The utility model can improve battery by using flexible circuit board
Heat dissipation performance, improve the security performance and service life of battery.
Detailed description of the invention
Fig. 1 is this practical cylindrical battery configuration schematic diagram.
Fig. 2 is Fig. 1 explosive view.
Fig. 3 is the installation diagram of battery core and flexible circuit board.
In figure: 1- battery core；The first tab of 11-；The second tab of 12-；2- flexible circuit board；21- first connecting portion；22-
Two interconnecting pieces；23- flexibility switching part；3- battery case；31- slot rolling；4- nut cap.
Specific embodiment
To keep the technical solution of the utility model and advantage clearer, below in conjunction with specific embodiment and specification
Attached drawing is described in further detail the utility model and its advantages, but the embodiments of the present invention is not limited to
This.
As shown in Fig. 1 ~ 3, a kind of cylindrical battery, comprising:
Battery core 1,1 both ends of battery core are respectively equipped with the first tab 11 and the second tab 12；
Flexible circuit board 2 is connect with the first tab 11 and the second tab 12；First tab 11 passes through 2 turns of flexible circuit board
It is connected to 12 one end of the second tab；Flexible circuit board 2 includes:
First connecting portion 21 is connect with the first tab 11；
Second connecting portion 22 is connect with the second tab 12；
One end of flexible switching part 23, flexible switching part 23 is connect with first connecting portion 21, flexible switching part 23 it is another
End is connect with second connecting portion 22.
Battery case 3, for accommodating battery core 1 and flexible circuit board 2, battery case 3 is equipped with slot rolling 31；The setting of slot rolling 31 exists
Between battery core 1 and second connecting portion 22.
Nut cap 4 is covered on battery case 3.
First, flexible circuit board 2 has the characteristics that solderability, and the utility model replaces metal by using flexible circuit board 2
Band is transferred, and is improved the effect and connection effect of switching, is reduced the failure rate of battery, and improve battery uses the longevity
Life.
Second, the thickness of flexible circuit board 2 is less than the thickness of existing ordinary circuit board；The utility model is by using flexibility
Wiring board 2 replaces available circuit plate, increases possessive volume of the battery core 1 in battery, improves the energy density of battery.
Third, flexible circuit board 2 have good thermal diffusivity；The utility model can be improved by using flexible circuit board 2
The heat dissipation performance of battery improves the security performance and service life of battery.
Preferably, first connecting portion 21 and an end face of battery core 1 are arranged in parallel, and second connecting portion 22 is another with battery core 1
End face is arranged in parallel, and flexible switching part 23 and the circumferential surface of battery core 1 are arranged in parallel.By above-mentioned setting, battery can be maximally utilized
Space in shell 3 increases possessive volume of the battery core 1 in battery, improves the energy density of battery.
Preferably, flexible 23 surface of switching part be equipped with high-temperature insulation film, it is highly preferred that high-temperature insulation film be PP film,
PC film, PET film, PFA film, PTFE film.By above-mentioned setting, the high temperature resistance and insulating properties of flexible switching part 23 can be improved
Can, improve the security performance and service life of battery.
Preferably, the shape of first connecting portion 21 and second connecting portion 22 is round, rectangular, kidney-shaped or combinations thereof.Root
According to actual conditions and production requirement, the first connecting portion 21 and second connecting portion 22 of suitable shape are selected.
Preferably, the depth of slot rolling 31 is 0.8 ~ 1.2mm.Existing cylindrical battery due to being provided with ordinary circuit board,
What is needed when being assembled is cooperated using the slot rolling 31 that depth is 1.6mm or more；Compared with the existing technology, this is practical new
Type reduces the assembly difficulty of cylindrical battery due to being provided with flexible circuit board 2；Therefore, it sets the depth of slot rolling 31 to
Numerical value is stated, the assembly of achievable cylindrical battery reduces the slot rolling technology difficulty of battery case 3, and increases battery core 1 in battery
Interior possessive volume improves the energy density of battery.
Preferably, flexible circuit board 2 with a thickness of 0.05 ~ 0.2mm.By above-mentioned setting, battery core 1 can increase in battery
Possessive volume, improve the energy density of battery.
Preferably, the first tab 11 and the second tab 12 are anode ear or negative electrode lug.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is modified.Therefore, the utility model is not limited to above-mentioned specific embodiment, all this field skills
It is practical new that art personnel any conspicuous improvement made on the basis of the utility model, replacement or modification belong to this
The protection scope of type.In addition, these terms are intended merely to facilitate although using some specific terms in this specification
It is bright, any restrictions are not constituted to the utility model.
Claims (10)
1. a kind of cylindrical battery characterized by comprising
Battery core (1), battery core (1) both ends are respectively equipped with the first tab (11) and the second tab (12)；
Flexible circuit board (2) is connect with first tab (11) and second tab (12)；First tab (11) is logical
It crosses the flexible circuit board (2) and is forwarded to described second tab (12) one end；
Battery case (3), for accommodating the battery core (1) and the flexible circuit board (2), the battery case is equipped with slot rolling
(31)；
Nut cap (4) is covered on the battery case (3).
2. cylindrical battery according to claim 1, which is characterized in that the flexible circuit board (2) includes:
First connecting portion (21) is connect with first tab (11)；
Second connecting portion (22) is connect with second tab (12)；
One end of flexible switching part (23), the flexibility switching part (23) is connect with the first connecting portion (21), the flexibility
The other end of switching part (23) is connect with the second connecting portion (22).
3. cylindrical battery according to claim 2, it is characterised in that: the first connecting portion (21) and the battery core (1)
One end face is arranged in parallel, and the second connecting portion (22) and the other end of the battery core (1) are arranged in parallel, the flexible switching
Portion (23) and the circumferential surface of the battery core (1) are arranged in parallel.
4. cylindrical battery according to claim 2, it is characterised in that: the slot rolling (31) is arranged in the battery core (1) and institute
It states between second connecting portion (22).
5. cylindrical battery according to claim 2, it is characterised in that: it is exhausted that flexibility switching part (23) surface is equipped with high temperature resistant
Velum.
6. cylindrical battery according to claim 5, it is characterised in that: the high-temperature insulation film be PP film, PC film, PET film,
PFA film, PTFE film.
7. cylindrical battery according to claim 2, it is characterised in that: the first connecting portion (21) and the second connecting portion
(22) shape is round, rectangular, kidney-shaped or combinations thereof.
8. cylindrical battery according to claim 1, it is characterised in that: the depth of the slot rolling (31) is 0.8 ~ 1.2mm.
9. cylindrical battery according to claim 1, it is characterised in that: the flexible circuit board (2) with a thickness of 0.05 ~
0.2mm。
10. cylindrical battery according to claim 1, it is characterised in that: first tab (11) and second tab
It (12) is anode ear or negative electrode lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822252028.0U CN209401788U (en) | 2018-12-29 | 2018-12-29 | A kind of cylindrical battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822252028.0U CN209401788U (en) | 2018-12-29 | 2018-12-29 | A kind of cylindrical battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209401788U true CN209401788U (en) | 2019-09-17 |
Family
ID=67897188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822252028.0U Active CN209401788U (en) | 2018-12-29 | 2018-12-29 | A kind of cylindrical battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209401788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403802A (en) * | 2020-04-30 | 2020-07-10 | 东莞新能德科技有限公司 | Battery and electric device with same |
-
2018
- 2018-12-29 CN CN201822252028.0U patent/CN209401788U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403802A (en) * | 2020-04-30 | 2020-07-10 | 东莞新能德科技有限公司 | Battery and electric device with same |
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