CN208298708U - A kind of supercapacitor core and supercapacitor - Google Patents
A kind of supercapacitor core and supercapacitor Download PDFInfo
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- CN208298708U CN208298708U CN201821087276.8U CN201821087276U CN208298708U CN 208298708 U CN208298708 U CN 208298708U CN 201821087276 U CN201821087276 U CN 201821087276U CN 208298708 U CN208298708 U CN 208298708U
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- pole piece
- tab
- core
- supercapacitor
- paper
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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
- Y02E60/13—Energy storage using capacitors
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The utility model discloses a kind of supercapacitor core, including pole piece, barrier paper, tab；Pole piece includes the first pole piece and the second pole piece, and barrier paper includes the first barrier paper and the second barrier paper, and tab includes the first tab and the second tab；First tab is arranged on the first pole piece, and the second tab is arranged on the second pole piece；By pole piece and release paper around forming, the first pole piece and the second pole piece are isolated paper and are spaced apart core；First tab and/or the second tab are located on the inside of corresponding pole piece in core.The utility model additionally provides a kind of supercapacitor, including supercapacitor core as described above.Due to tab in core at least one be distributed to compression caused by tab edge mainly on pole piece towards on the inside of corresponding pole piece, and reduce the destruction to barrier paper.It avoids because broken paper or breakdown and cause capacitor product and the fatal bad of short circuit occurs occurs for barrier paper.
Description
Technical field
The utility model relates to electrochemical technology field, in particular to a kind of supercapacitor core and supercapacitor.
Background technique
Capacitor is essential base components in electronic equipment and power equipment.Supercapacitor is between tradition
Extraordinary energy-storage travelling wave tube between electrostatic container and electrochemical power source；Supercapacitor has small in size, power density height, charge and discharge
Speed is fast, has extended cycle life, the advantage that discharge power is high, operating temperature range is wide, therefore in mobile communication, the energy, information skill
The multiple fields such as art, electric car have very extensive application prospect.
The existing supercapacitor of market at present, in core (also known as dry battery core or motor core), tab is as electricity
Pole piece lead-out wire is fixedly connected on the respective surfaces of electrode slice, in the manufacture of existing core, in use due to tab
Its width direction is not easy bending deformation, and the sharp edge of tab will be directly born against on barrier paper.
For aluminium electrolytic capacitor product, barrier paper density used in it is larger, toughness is preferable, and tensile strength is high, and surpasses
Barrier paper used in grade capacitor is in order to obtain good absorbent, and density is relatively low, tenacity of fibre is poor, so that
The tensile strength and pop strength of paper are poor.And the core of supercapacitor needs to toast by 160 ~ 180 DEG C of vacuum high-temperatures
Thoroughly to remove moisture in micropore, so that barrier paper becomes more crisp under high temperature action, damage resistibility is worse.Therefore in tab and pole
At the link position of piece, barrier paper in winding process and subsequent used because of relatively huge pressing stress by tab marginal position
The marginal position of Cheng Zhong, tab may make barrier paper thinning, cause product micro-short circuit to increase leakage current, self discharge variation
The leakage current of product can be made to increase by 3 times or more than normal value Deng, product micro-short circuit.Normal full electric product open circuit places 5 days voltage
Conservation rate has the product of micro-short circuit to place one day 80% or more, and voltage will drop to 80% or less.It even will cause barrier paper
Broken paper is easy breakdown and causes the fatal bad of product short circuit.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of supercapacitor core, including pole piece, barrier paper,
Tab；The pole piece includes the first pole piece and the second pole piece, and the barrier paper includes the first barrier paper and the second barrier paper, described
Tab includes the first tab and the second tab；First tab is arranged on the first pole piece, and the second tab setting is the
On two pole pieces；By pole piece and release paper around forming, first pole piece and the second pole piece are isolated paper and are spaced apart the core；
First tab and/or the second tab are located on the inside of corresponding pole piece in core.
Compared with prior art, the utility model has the following beneficial effects:
Due to the supercapacitor core of the utility model, tab in core at least one be located in corresponding pole piece
Side is distributed to compression caused by tab edge mainly on pole piece, and reduces the destruction to barrier paper.It avoids because of barrier paper
Broken paper or breakdown and cause capacitor product and the fatal bad of short circuit occurs occurs.Meanwhile the capacity of capacitor is protected
Card also effectively controls the promotion because of capacitor material cost and manufacturing cost caused by improved product in production.
Further, first tab is located on the inside of the first pole piece in core, the second tab position in core
On the outside of the second pole piece.
Further, first tab is located on the outside of the first pole piece in core, the second tab position in core
On the inside of the second pole piece.
Further, first tab is located on the inside of the first pole piece in core, the second tab position in core
On the inside of the second pole piece.
Further, the tab is guide pin or leads one of which in chaff, and the ear pole material is aluminium foil, copper foil
Or the one of which in nickel foil.
Further, the tab with a thickness of 0.1 ~ 0.3mm, width is 2 ~ 8mm.
Further, the pole piece includes Collective Flow and coated in the active material on Collective Flow, pole piece with a thickness of 100 ~
250μm。
Further, the Collective Flow is any of aluminium foil, copper foil or nickel foil, and the active material is active carbon.
Further, there is tab position, the tab is electrically connected at tab position with corresponding pole piece on the pole piece.
Further, it is additionally provided with liner at the tab position of the pole piece and the electrically connecting position of pole piece, the liner is used
In tab is isolated with barrier paper, directly contact barrier paper to avoid tab and scratches barrier paper.
Further, the liner is interleaving paper or liner foil, and uncoated is living in the one side that the liner is attached on pole piece
Property charcoal, active carbon is coated on the another side of liner.
The utility model additionally provides a kind of supercapacitor, including supercapacitor core as described above.
Compared with prior art, the utility model has the following beneficial effects:
Due to the supercapacitor core and supercapacitor of the utility model, tab in core at least one be located at
It on the inside of corresponding pole piece, is distributed to compression caused by tab edge mainly on pole piece, and reduces the destruction to barrier paper.It avoids
Because broken paper or breakdown and cause capacitor product and the fatal bad of short circuit occurs occurs for barrier paper.Meanwhile capacitor
Capacity is guaranteed, and is also effectively controlled in production because of capacitor material cost and manufacturing cost caused by improved product
Promotion.
Detailed description of the invention
Fig. 1 is a kind of supercapacitor core schematic diagram described in the utility model embodiment one；
Fig. 2 is a kind of supercapacitor core schematic diagram described in the utility model embodiment two；
Fig. 3 is a kind of supercapacitor core schematic diagram described in the utility model embodiment three；
Fig. 4 is a kind of another core schematic diagram of supercapacitor described in the utility model embodiment three；
Fig. 5 is a kind of supercapacitor core diagrammatic cross-section described in the utility model embodiment three.
Appended drawing reference:
100- supercapacitor core, the first barrier paper of 10-, the first pole piece of 11-, the second barrier paper of 12-, the second pole 13-
Piece, the first tab of 21-, the second tab of 22-, tab area on the first pole piece of 11a-, tab area on the second pole piece of 13a-.
Specific embodiment
With reference to the accompanying drawings and examples, to the knot of a kind of supercapacitor core of the utility model and supercapacitor
Structure and action principle are described further.
Embodiment one:
As shown in Figure 1, being the utility model embodiment one, this specific embodiment provides a kind of supercapacitor core
100, including pole piece, barrier paper, tab；Pole piece includes the first pole piece 11 and the second pole piece 13, and barrier paper includes the first barrier paper
10 and second barrier paper 13, tab include the first tab 21 and the second tab 22.First tab 21 is arranged on the first pole piece 11,
Second tab 22 is arranged on the second pole piece 13.
By pole piece and release paper around forming, the first pole piece 11 and the second pole piece 13 are isolated paper and are spaced apart core 100；?
In Fig. 1, the first pole piece 11, the first barrier paper 10, the second pole piece 13, the second barrier paper 12 overlap in order, are wound into
Core 100.
Tab particularly guide pin.Its width direction is not easy bending deformation to tab in use, and the first tab 21 exists
It is located at the inside of the first pole piece 11 in core 100, therefore the sharp edge of the first tab 21 will be directly born against on the first pole piece 11.
The barrier paper poor relative to damage resistibility, pole piece are the aluminium foil, copper foil or nickel foil that surface is coated with active material
Any one, therefore the flexibility of pole piece is preferable, bigger compression can be born than brittleness barrier paper, and damage resistibility is more preferably.The
Two tabs 22 are located at the outside of the second pole piece 13 in core 100.
Barrier paper (also known as electrolytic paper) be mainly natural fiber be made, the preferable paper of absorbency, thickness is usually 30 ~ 50 μm
(micron).Preferably, the first barrier paper 10 and the second barrier paper 13 with a thickness of 30 ~ 40 μm.
Preferably, tab with a thickness of 0.1 ~ 0.3mm, width is 2 ~ 8mm.
Preferably, pole piece includes Collective Flow and coated in the active material on Collective Flow.The pole piece is with a thickness of 50 ~ 250 μ
m.Collective Flow can be aluminium foil, copper foil or nickel foil.Active material is active carbon.
Also there is tab position on pole piece, tab is electrically connected at tab position with corresponding pole piece.
As shown in Figure 1, on the first pole piece 11 have the first tab position 11a, the first tab 21 the first tab position 11a at and
First pole piece 11 is electrically connected；There is the second tab position 13a, the second tab 22 is in the second tab position 13a on first pole piece 13
Place is electrically connected with the second pole piece 13；The electric connection mode can be riveting.Riveting method can be cold riveting or thorn riveting.
As a preferred solution, liner can also be set at the electrically connecting position of the tab position of pole piece and pole piece
(not shown) is padded for tab to be isolated with barrier paper.Specifically, in the tab position and the first pole of the first pole piece
The first liner is provided at the rivet location of piece, the first liner covers tab position completely；In the tab position and the of the second pole piece
The second liner is provided at the rivet location of two pole pieces, the second liner covers tab position completely.Liner can be interleaving paper or
Pad foil.Preferably, uncoated active carbon in the one side being attached on pole piece is padded, is coated with active carbon on the another side of liner.
The supercapacitor core of this specific embodiment one, tab have one to be located on the inside of corresponding pole piece in core, i.e.,
First tab 21 is located at the inside of the first pole piece 11 in core 100.Compression caused by tab edge is set mainly to be distributed to pole
On piece, and reduce the destruction to barrier paper.
Can greatly it be improved in manufacture course of products using the present embodiment technical solution since barrier paper (electrolytic paper) becomes
It is thin become fragile caused by micro-short circuit even short circuit problem.It avoids because broken paper or breakdown and cause capacitor occurs for barrier paper
The fatal bad of short circuit occurs for product.Meanwhile the capacity of capacitor is guaranteed, and is also effectively controlled in production because of product
Manufacturing cost is promoted caused by improvement.Embodiment two:
As shown in Fig. 2, unlike embodiment one: in the present embodiment, the second tab 22 is located at the in core 100
The inside of two pole pieces 13, therefore the sharp edge of the second tab 22 will be directly born against on the second pole piece 13.Relative to damage resistibility compared with
The barrier paper of difference, pole piece is any one that surface is coated with the aluminium foil of active material, copper foil or nickel foil, therefore pole piece is flexible
Property is preferable, bigger compression can be born than brittleness barrier paper, and damage resistibility is more preferably.First tab 21 is located in core 100
The outside of first pole piece 11.
The supercapacitor core of this specific embodiment two, the second tab 22 is in core 100 positioned at the second pole piece 13
Inside.It is distributed to compression caused by tab edge mainly on the second pole piece 13, and reduces the destruction to barrier paper.Avoid because
Broken paper or breakdown and cause capacitor product and the fatal bad of short circuit occurs occurs for barrier paper.Meanwhile the appearance of capacitor
Amount is guaranteed, and is also effectively controlled in production because manufacturing cost is promoted caused by improved product.
Embodiment three:
As shown in figure 3, in the present embodiment, the first pole piece 11, the first barrier paper 10, the second pole piece 13, the second barrier paper
12 overlap in order, are wound into core 100.First tab 21 is located at 11 inside of the first pole piece, and the second tab 22 is located at
Second pole piece, 13 inside.The barrier paper poor relative to damage resistibility, pole piece be surface be coated with the aluminium foil of active material, copper foil or
Any one of nickel foil, therefore the flexibility of pole piece is preferable, bigger compression can be born than brittleness barrier paper, and damage resistibility is more
It is good.
In the present embodiment, tab particularly guide pin.In other examples, Fig. 4 is the utility model embodiment
A kind of another core schematic diagram of supercapacitor described in three；As shown in figure 4, the first tab 21 and the second tab 22 are to lead foil
Item.
Fig. 5 is a kind of supercapacitor core diagrammatic cross-section described in the utility model embodiment three；Such as Fig. 5 institute
Show, the first tab 21 and the second tab 22 are located at the inside of corresponding pole piece in core 100.The sharp edge of first tab 21 is straight
It connects and is pressed on the first pole piece 11.The sharp edge of second tab 22 is directly born against on the second pole piece 13.
The supercapacitor core of this specific embodiment three, the first tab 21 and the second tab 22 are located in core 100
The inside of corresponding pole piece.The sharp edge of tab is directly born against on pole piece, is distributed to compression caused by tab edge mainly
On corresponding pole piece.Relative to embodiment one and two kinds of embodiment of scheme, broken paper or breakdown probability occur for barrier paper more
It is small, therefore and cause capacitor product occur short circuit fraction defective it is lower.It is with higher safety.
Example IV: this specific embodiment provides a kind of supercapacitor, including the upper of such as one ~ embodiment of embodiment one
State core 100.
Compared with prior art, the utility model has the following beneficial effects:
Due to the supercapacitor core and supercapacitor of the utility model, tab in core at least one be located at
It on the inside of corresponding pole piece, is distributed to compression caused by tab edge mainly on pole piece, and reduces the destruction to barrier paper.It avoids
Because broken paper or breakdown and cause capacitor product and the fatal bad of short circuit occurs occurs for barrier paper.Meanwhile capacitor
Capacity is guaranteed, and is also effectively controlled in production because of capacitor material cost and manufacturing cost caused by improved product
Promotion.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model embodiment rather than right
It is limited, although the utility model embodiment is described in detail referring to preferred embodiment, this field it is common
Technical staff should understand that still be modified or replaced equivalently the technical solution of the utility model embodiment, and this
A little ranges modified or equivalent replacement cannot also make modified technical solution be detached from the utility model embodiment technical solution.
Claims (10)
1. a kind of supercapacitor core, including pole piece, barrier paper, tab；The pole piece includes the first pole piece and the second pole piece,
The barrier paper includes the first barrier paper and the second barrier paper, and the tab includes the first tab and the second tab；Described first
Tab is arranged on the first pole piece, and second tab is arranged on the second pole piece；The core by pole piece and release paper around
It forms, first pole piece and the second pole piece are isolated paper and are spaced apart；First tab and/or the second tab position in core
On the inside of corresponding pole piece.
2. supercapacitor core as described in claim 1, which is characterized in that first tab is located at first in core
On the inside of pole piece, second tab is located on the outside of the second pole piece in core.
3. supercapacitor core as described in claim 1, which is characterized in that first tab is located at first in core
On the outside of pole piece, second tab is located on the inside of the second pole piece in core.
4. supercapacitor core as described in claim 1, which is characterized in that first tab is located at first in core
On the inside of pole piece, second tab is located on the inside of the second pole piece in core.
5. supercapacitor core as described in claim 1, which is characterized in that the tab with a thickness of 0.1 ~ 0.3mm, it is wide
Degree is 2 ~ 8mm.
6. supercapacitor core as described in claim 1, which is characterized in that the pole piece include Collective Flow and be coated in collection
Active material on body stream, the pole piece is with a thickness of 100 ~ 250 μm.
7. supercapacitor core as described in claim 1, which is characterized in that have tab position, the pole on the pole piece
Ear is electrically connected at tab position with corresponding pole piece.
8. supercapacitor core as claimed in claim 7, which is characterized in that the tab position of the pole piece and being electrically connected for pole piece
It connects and is additionally provided with liner at position, the liner is for tab to be isolated with barrier paper.
9. supercapacitor core as claimed in claim 8, which is characterized in that the liner is interleaving paper or liner foil, institute
Uncoated active carbon in the one side that liner is attached on pole piece is stated, is coated with active carbon on the another side of the liner.
10. a kind of supercapacitor, including supercapacitor core as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821087276.8U CN208298708U (en) | 2018-07-10 | 2018-07-10 | A kind of supercapacitor core and supercapacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821087276.8U CN208298708U (en) | 2018-07-10 | 2018-07-10 | A kind of supercapacitor core and supercapacitor |
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| Publication Number | Publication Date |
|---|---|
| CN208298708U true CN208298708U (en) | 2018-12-28 |
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| CN201821087276.8U Active CN208298708U (en) | 2018-07-10 | 2018-07-10 | A kind of supercapacitor core and supercapacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112927941A (en) * | 2021-01-23 | 2021-06-08 | 深圳市凯特电子有限公司 | Small-size high-voltage electrolytic capacitor and processing technology thereof |
-
2018
- 2018-07-10 CN CN201821087276.8U patent/CN208298708U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112927941A (en) * | 2021-01-23 | 2021-06-08 | 深圳市凯特电子有限公司 | Small-size high-voltage electrolytic capacitor and processing technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Super capacitor winding core and super capacitor Effective date of registration: 20210823 Granted publication date: 20181228 Pledgee: Zhaoqing Rural Commercial Bank Co.,Ltd. Dinghu sub branch Pledgor: Zhaoqing Beryl Electronic Technology Co.,Ltd. Registration number: Y2021440000268 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220830 Granted publication date: 20181228 Pledgee: Zhaoqing Rural Commercial Bank Co.,Ltd. Dinghu sub branch Pledgor: Zhaoqing Beryl Electronic Technology Co.,Ltd. Registration number: Y2021440000268 |