CN203406180U - Double-electric-layer capacitor unit and double-electric-layer capacitor - Google Patents
Double-electric-layer capacitor unit and double-electric-layer capacitor Download PDFInfo
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- CN203406180U CN203406180U CN201320361091.2U CN201320361091U CN203406180U CN 203406180 U CN203406180 U CN 203406180U CN 201320361091 U CN201320361091 U CN 201320361091U CN 203406180 U CN203406180 U CN 203406180U
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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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Abstract
The utility model provides a double-electric-layer capacitor unit and a double-electric-layer capacitor. The double-electric-layer capacitor unit (1) comprises an aluminum electrode (2) and an aluminum electrode (3) which are stacked in pairs. The aluminum electrode (2) and the aluminum electrode (3) respectively have an active layer (4) and an active layer (5). The active layer (4) and the active layer (5) are opposed to each other to define a common footprint (6). Both the layer (4) and the layer (5) have a thickness smaller than 200 mu m. A separator (7) with a thickness ranging from 20 mu m to 40 mu m is arranged between the electrode (2) and the electrode (3) so as to make the layer (4) and the layer (5) physically and electrically separated. The unit (1) further comprises an electrolyte (not marked in the drawing) with electrolyte ions. A double electric layer is thus arranged in each one of the electrode (2) and the electrode (3). The unit (1) with the standardized common footprint has equivalent series resistance (ESR) less than 1.0 ohm cm2. The double-electric-layer capacitor unit can provide very high energy.
Description
Technical field
The utility model relates to a kind of double electric layer capacitor unit.Specifically studied automobile has been applied to embodiment of the present utility model.Although will specifically be described some embodiment with reference to this application, will be appreciated that this utility model is not limited to such use field, can be applicable to field widely here.
Background technology
In whole specification, any discussion that background technology is carried out never should be considered to admit that this technology is well-known, or admits that this technology forms the part of general knowledge in this area.
Energy storage device has been used for many years in many application.A kind of like this energy storage device is the capacitor that maintains two electric energy between electrode.Yet for given electrode size, capacitor only stores a certain amount of electric energy, therefore, often can not meet electric applicable needs, in addition for practical application and Yan Tai little.
Especially, in the time of in being used in full-sized car field, this capacitor must meet the particular combination of actual size and operation characteristic, so that capacitor has effect.
Utility model content
The purpose of this utility model is to overcome or improve at least one shortcoming of prior art, or a kind of selection is provided more.
An embodiment provides a kind of double electric layer capacitor unit, and described double electric layer capacitor unit comprises: a pair of stacking electrode, there is respectively active layer, and the active layer of described a pair of stacking electrode is toward each other to limit territory, common footprint (cm
2), the thickness of active layer is all less than 200 μ m; Separator, thickness, in the scope of 20 μ m to 40 μ m, is arranged between electrode active layer physics and electricity is separated; And electrolyte, make electric double layer be based upon each electrode place, wherein, territory, common footprint is by ESR(ohm of standardized unit) be less than 1.0 ohm of .cm
2.
In another embodiment, the thickness of active layer is all less than 100 μ m.Preferably, the thickness of active layer is all less than 50 μ m.More preferably, the thickness of active layer is all less than 45 μ m.
In another embodiment, territory, common footprint is by ESR(ohm of standardized unit) be less than 0.95 ohm of .cm
2.Preferably, territory, common footprint is by ESR(ohm of standardized unit) be less than 0.90 ohm of .cm
2.
Other embodiment provide a kind of double electric layer capacitor, and described double electric layer capacitor comprises: at least one unit in aforementioned unit; Packaging part, has the outside inside with comprising hermetically described at least one unit; Two terminals, each connecting terminals is received the electrode of the particular group in described at least one unit and is extended to outside.
Double electric layer capacitor unit can provide can make resistance voltage reduced minimum, make that capacitance (energy) is best, thin electrodes and the thin separator of installed capacity and overlay area minimum.
" embodiment " who mentions in whole specification, " some embodiment " or " embodiment " refer to that concrete feature, structure or the characteristic described are included at least one embodiment of the present utility model in conjunction with the embodiments.Therefore the phrase " in one embodiment ", " in certain embodiments " or " in an embodiment " that, at the diverse location of whole specification, occur needn't all refer to same embodiment, but can refer to same embodiment.In addition, those of ordinary skills will be clear that according to the disclosure, and concrete feature, structure or characteristic can combine in one or more embodiments in any suitable manner.
As used herein, unless otherwise indicated, otherwise use ordinal number adjective " first ", " second ", " the 3rd " etc. to describe common object, only represent the different instances of the analogical object mentioning, and be not intended to show that the object described is like this must the time upper, on space, on order or in any other mode in given order.
In claim and the description here, term comprises, by ... form or comprise in any one be open term, its expression at least comprises the element/feature of following, but does not get rid of other element/feature.Therefore, term is included in while using in the claims, should not be understood to be restricted to mode or element or the step listed thereafter.For example, the scope of statement that comprises the device of A and B should not be restricted to device and only A and B, consist of.As used herein term comprise or comprise in any one be also open term, it also represents at least to comprise the element/feature of following this term, but does not get rid of other element/feature.Therefore, comprise that with comprising be synonym, the meaning is to comprise.
As used herein, term " exemplary " is to provide the meaning of example to use, rather than representation property.That is, " exemplary embodiment " is the embodiment providing as example, rather than must be the embodiment of exemplary character.
Accompanying drawing explanation
Now with reference to accompanying drawing, only in the mode of example, embodiment of the present utility model is described, in the accompanying drawings:
Fig. 1 is according to the perspective view of the double electric layer capacitor unit of embodiment of the present utility model.
Fig. 2 is according to the perspective view of the double electric layer capacitor unit of embodiment of the present utility model.
Fig. 3 is the selectable perspective view of the double electric layer capacitor unit of Fig. 2.
Fig. 4 is the perspective view that Fig. 2 of inside and the capacitor of Fig. 3 of packaging part are shown.
Fig. 5 is according to the perspective view of the double electric layer capacitor unit of the inside that packaging part is shown of the utility model embodiment.
Fig. 6 A is the front view of the double electric layer capacitor of Fig. 2 and Fig. 3.
Fig. 6 B is the vertical view of the double electric layer capacitor of Fig. 2 and Fig. 3.
Fig. 6 C is the end view of the double electric layer capacitor of Fig. 2 and Fig. 3.
Embodiment
With reference to Fig. 1, double electric layer capacitor unit 1 comprises a pair of stacking aluminium electrode 2 and 3 respectively with active layer 4 and 5, and wherein, active layer 4 and 5 is toward each other to limit territory, common footprint (common footprint) 6.The thickness of layer 4 and 5 is all less than 200 μ m.The separator 7 of thickness within the scope of 20 μ m to 40 μ m is arranged between electrode 2 and 3 so that layer 4 was opened separated with electricity with 5 minutes.Unit 1 also comprises the electrolyte (not shown) with electrolyte ion, so that electric double layer is based upon each the electrode place in electrode 2 and 3, wherein, territory, common footprint is less than 1.0 ohm of .cm by the equivalent series resistance of standardized unit 1 (ESR)
2.
The moistening separator 7 of electrolyte also extends to layer 4 and 5.The thickness of electric double layer is nanoscale, and electric double layer is formed on the surface of electrode 2 and 3 by the separation of charge of electrolytical physics.
In other embodiments, the thickness of layer 4 and 5 is all less than 100 μ m.In other embodiments, the thickness of layer 4 and 5 is all less than 50 μ m.In other embodiments, the thickness of layer 4 and 5 is all less than 45 μ m.
In other embodiments, territory, common footprint is less than 0.95 ohm of .cm by the ESR of standardized unit
2.In other embodiments, territory, common footprint is less than 0.90 ohm of .cm by the ESR of standardized unit
2.
Referring now to Fig. 2, Fig. 3 and Fig. 4, double electric layer capacitor 10 comprises two identical unit 11, and wherein, each unit is equal to unit 1 substantially.Capacitor 10 also comprises sealed package 12, and sealed package 12 has outside 14 and comprises hermetically the inside 13 of unit 11.Capacitor 10 also comprises the aluminium terminal 15 and 16 of two substantially flats, and each aluminium terminal is electrically connected to the electrode of the particular group in each unit 11, and extends to outside 14.
In certain embodiments, electrode 2 and 3 integrally forms respectively terminal 15 and 16.
With reference to Fig. 2 and Fig. 3, packaging part 12 is thin, smooth and is rectangle.Packaging part 12 comprises top side face 20 and downside 21.Packaging part has four edges: top edge 22, the feather edge 23 relative with top edge 22 and two lateral edges 24 and 25.Terminal 15 and 16 22 stretches out from edge, and packaging part 12 seals to limit periphery seal part 30 along whole four edges 22,23,24 and 25.It is particularly advantageous that terminal 15 and 16 is stretched out from same edge, because this minimizes the overall area of coverage of capacitor 10.
In other embodiments, terminal 15 with 16 respectively from extending with 23 relative edge such as edge 22.For application, this makes to be conducive to make terminal near from capacitor opposite side or different side joint.
In other embodiments, packaging part 12 is not rectangle.
In other embodiments, capacitor 10 comprises a unit 11.In other embodiments, capacitor 10 comprises the unit 11 more than two.
With reference to Fig. 5, in other embodiments, capacitor 10 comprises stacking aluminium electrode, and stacking aluminium electrode comprises two termination electrodes 30 and a plurality of target 31.In the illustrated embodiment, there are three targets 31, but can have in other embodiments more than the target 31 of three or be less than the target 31 of three.Termination electrode 30 comprises that one towards inner active layer 32, and target 31 comprises a pair of relative active layer 33 and 34.Each active layer 32 is relative with active layer 33 or the active layer 34 of another electrode, and each remaining active layer 33(is, not relative with active layer 32) relative with active layer 34.Each electrode is opened by separator 35 and adjacent electrode or adjacent a plurality of electrode separation.
As embodiment above, in the present embodiment, by two electrodes " to " limit each unit 11 with relative active layer and the separator between active layer.Yet in the present embodiment, target 31 forms a part for two adjacent cells 11, wherein, active layer 33 is in a unit, and active layer 34 is in another unit.In the present embodiment, there are four unit.In certain embodiments, stacking capacitor 10 comprises nearly 100 unit.
Each electrode and separator 35 in electrode 30 and 31 are stacked, but always not stacked in the whole modes respect to one another in adjacent surface.Will be appreciated that in other embodiments, all toward each other, so their edge is adjacent for electrode 30 and 31 adjacent surface and separator 35.
With reference to Fig. 6 A, 6B and 6C, show a series of size of the embodiment of Fig. 2 and Fig. 3.In one embodiment, these sizes are as follows:
Size 62 is 195mm.
The size 68 that shows thickness is 9mm.
Will be appreciated that in other embodiments, size 60 to 68 is different from the size that above-mentioned emphasis is listed.
The embodiments described herein is particularly suitable for automobile and uses, because they have enough thin electrode compound, thin separator and low ESR.The element of combination is because each unit of low-down ESR(is from 1.0 ohm of .cm like this
2to 0.5 ohm of .cm
2) and very high voltage (each unit is up to 2.7 volts) and high capacitance and very high power is provided, thereby make the unit of combination be used to the driving starter motor of cranking internal combustion engine.Crucially, thus thin electrodes be combined with thin porous separator guaranteed capacitor unit ESR(with ohm .cm
2for unit) very low, therefore make the reduced minimum of resistance voltage and capacitor is remained on operation starter motor required voltage.Put it briefly, the performance advantage of particular importance comes from the combination of thin electrodes and thin separator.Utilize thicker electrode can obtain higher specific capacitance (with F/cm
2for unit), but ESR also will increase with the increase of thickness of electrode.In addition, in order to reduce compared with the risk of the short circuit of thick electrode, need thicker separator, the thicker ESR that also makes of separator increases.This increase of ESR means the performance for needs, needs to the electrode zone that is difficult to realize, to make the ESR of overall apparatus enough low greatly.
The combination of thin electrodes described herein and thin separator has guaranteed that the decline of resistance voltage is minimized, and capacitance (energy) is the most desirable, and device volume and overlay area are minimum.
It should be understood that, in the above description of exemplary embodiment of the present utility model, for exposing, simplify and help the object to the understanding of the one or more inventive aspects in different inventive aspects, different characteristic of the present utility model is combined in single embodiment, accompanying drawing or its description.Yet method of the present disclosure should not be interpreted as reflecting such intention, that is, utility model required for protection need to be than the more feature of the feature of clearly listing in each claim.On the contrary, as claim reflects, inventive aspect is fewer than all features of disclosed single embodiment above.Therefore, accordingly claim is clearly incorporated in this embodiment, using every claim itself as independent embodiment of the present utility model.
In addition, although embodiment more described herein comprise the feature outside some other features that comprise in other embodiments, but as the skilled person will appreciate, the combination of the feature of different embodiment is intended in scope of the present utility model and forms different embodiment.For example, in the claims, any embodiment required for protection can be used in combination with any.
In the description providing, many concrete details have been set forth here.Yet, understanding, the embodiment of utility model can not put into practice in the situation that there is no these details.In other cases, for the outstanding understanding to this description, be not shown specifically known method, structure and technology.
Similarly, will notice, when term combination is used in claim, should not be interpreted as being only limited to direct connection.Can use term " combination " and " connection " and their derivative.It should be understood that these terms are not intended to conduct synonym each other.Therefore the scope of statement that, is attached to the device A of device B should not be limited to device or the system that the output that wherein installs A is directly connected to the input of device B.The meaning is that between the output of A and the input of B, having ，Gai path, path can be the path that comprises other devices or mode." combination " can refer to two or more element direct physical contacts or directly electrically contact, or two or more elements are not in direct contact with one another but cooperation or interaction each other.
Therefore; although described the content that is considered to preferred embodiment of the present utility model; but those skilled in the art will recognize that; in the situation that not departing from spirit of the present utility model; can it be made other and further be revised, and be intended to claimed all such change and the modification falling in scope of the present utility model.For example, any scheme providing is above only the representative of operable operation.Can from block diagram, add or leave out function, can be between functional block swap operation.In scope of the present utility model, for the method for describing, can add or leave out step.
Claims (7)
1. a double electric layer capacitor unit, is characterized in that, described double electric layer capacitor unit comprises:
A pair of stacking electrode, has respectively active layer, and the active layer of described a pair of stacking electrode is toward each other to limit territory, common footprint, and the thickness of active layer is all less than 200 μ m;
Separator, thickness, in the scope of 20 μ m to 40 μ m, is arranged between electrode active layer physics and electricity is separated;
Electrolyte, makes electric double layer be based upon each electrode place, and wherein, territory, common footprint is less than 1.0 ohm of .cm by the equivalent series resistance of standardized described double electric layer capacitor unit
2.
2. double electric layer capacitor according to claim 1 unit, is characterized in that, the thickness of active layer is all less than 100 μ m.
3. double electric layer capacitor according to claim 1 unit, is characterized in that, the thickness of active layer is all less than 50 μ m.
4. double electric layer capacitor according to claim 1 unit, is characterized in that, the thickness of active layer is all less than 45 μ m.
5. according to the double electric layer capacitor unit described in any one claim in aforementioned claim, it is characterized in that, territory, common footprint is less than 0.95 ohm of .cm by the equivalent series resistance of standardized described double electric layer capacitor unit
2.
6. double electric layer capacitor according to claim 5 unit, is characterized in that, territory, common footprint is less than 0.90 ohm of .cm by the equivalent series resistance of standardized described double electric layer capacitor unit
2.
7. a double electric layer capacitor, is characterized in that, described double electric layer capacitor comprises:
At least one double electric layer capacitor unit in double electric layer capacitor unit in aforementioned claim described in any one claim;
Packaging part, has the outside inside with comprising hermetically described at least one double electric layer capacitor unit;
Two terminals, each connecting terminals is received the electrode of the particular group in described at least one double electric layer capacitor unit and is extended to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320361091.2U CN203406180U (en) | 2013-06-21 | 2013-06-21 | Double-electric-layer capacitor unit and double-electric-layer capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320361091.2U CN203406180U (en) | 2013-06-21 | 2013-06-21 | Double-electric-layer capacitor unit and double-electric-layer capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN203406180U true CN203406180U (en) | 2014-01-22 |
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| CN201320361091.2U Expired - Lifetime CN203406180U (en) | 2013-06-21 | 2013-06-21 | Double-electric-layer capacitor unit and double-electric-layer capacitor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10312028B2 (en) | 2014-06-30 | 2019-06-04 | Avx Corporation | Electrochemical energy storage devices and manufacturing methods |
| US10446328B2 (en) | 2016-05-20 | 2019-10-15 | Avx Corporation | Multi-cell ultracapacitor |
-
2013
- 2013-06-21 CN CN201320361091.2U patent/CN203406180U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10312028B2 (en) | 2014-06-30 | 2019-06-04 | Avx Corporation | Electrochemical energy storage devices and manufacturing methods |
| US10446328B2 (en) | 2016-05-20 | 2019-10-15 | Avx Corporation | Multi-cell ultracapacitor |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |