CN102629521A - Electric double-layer capacitor - Google Patents
Electric double-layer capacitor Download PDFInfo
- Publication number
- CN102629521A CN102629521A CN2012101243088A CN201210124308A CN102629521A CN 102629521 A CN102629521 A CN 102629521A CN 2012101243088 A CN2012101243088 A CN 2012101243088A CN 201210124308 A CN201210124308 A CN 201210124308A CN 102629521 A CN102629521 A CN 102629521A
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- percent
- layer
- electric double
- electrolyte
- mass ratio
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
- H01G11/58—Liquid electrolytes
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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
Abstract
The invention discloses an electric double-layer capacitor, which comprises a voltage-resistance outer tube, an insulator, a metal current collector, a current collector protection layer, a conducting bonding agent layer, an electronic non-conducting separator, an active carbon electrode layer, an acid resistance sealing layer and a sulfuric-acid-containing electrolyte storage device, wherein the current collector protection layer is manufactured by a graphite thin sheet, the electronic non-conducting separator is soaked by electrolyte, the active carbon electrode layer comprises lead dioxide and lead sulfate, the mass ratio of the lead sulfate to the lead dioxide is (1-95 percent): (95-10 percent), and the mass ratio of the lead in the active carbon electrode layer is 2 to 20 percent. The electric double-layer capacitor has the advantages that higher capacitance, better sealing performance and lower impedance can be simultaneously realized when high conductivity is maintained, in addition, the insulation performance is good, and in addition, the cost is effectively reduced.
Description
Technical field
The present invention relates to a kind of electric capacity, particularly a kind of Electric double-layer capacitor.
Background technology
In electronic engineering, electric capacity electric double layer energy capable of using produces the electric capacity of high power capacity, is usually used in fields such as computer, communication equipment and digital programmable lathe.This electric capacity comprises the polarizable electrode of two porous, and electrode can be the activated carbon electrodes layer, and a non-conductive separator of electronics that is soaked by electrolyte is arranged between activated carbon electrodes layer and current-collector.The capacity of the electrostatic charge electrochemical capacitor that the Capacity Ratio of Electric double-layer capacitor is conventional is much higher, and still, a shortcoming of these electric capacity is its quite low specific energys, and the specific energy maximum of this electric capacity is provided with by no water electrolyte.But because the low-down conductivity of no water electrolyte, discharge and charging current that this electric capacity allows are very low, and impedance is high, and insulation property are poor, increased cost greatly.
Summary of the invention
The object of the invention just is to provide a kind of Electric double-layer capacitor, can address the above problem fully.
To achieve these goals; The technical scheme that the present invention adopts is such: Electric double-layer capacitor of the present invention; Comprise a resistance to compression outer tube, an insulator, a metal collector, current-collector protective layer, a conductive adhesive layer, the non-conductive separator of electronics, an activated carbon electrodes layer that comprises brown lead oxide and lead sulfate, an antiacid sealant and an electrolyte that comprises sulfuric acid of being soaked of processing by graphite flake by electrolyte; Wherein the mass ratio of lead sulfate and brown lead oxide is one of percentage to 95 95 percent to percent to one of percentage ten, and wherein plumbous mass ratio is 20 2 percent to percent in the activated carbon electrodes layer.
As preferably, said activated carbon electrodes layer is divided into polarizable electrode layer and non-polarizable electrode layer.
As preferably, mass ratio plumbous in the said polarizable electrode layer is 20 2 percent to percent.
As preferably, mass ratio plumbous in the said non-polarizable electrode layer is 30 3 percent to percent.
As preferably, said electrolyte contains the electrolyte that is soaked with scheduled volume, makes that the electrolyte occupation rate is greater than or equal to 50 percent when charging fully, and the electrolyte occupation rate is less than or equal to 50 percent when incomplete charging.
As preferably, said resistance to compression outer tube has an inner space, and this inner space is in vacuum.
Compared with prior art, the invention has the advantages that: this Electric double-layer capacitor improves higher capacitance, better sealing property and lower impedance when keeping high conductivity, insulation property are good in addition, and effectively reduce cost.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
To combine accompanying drawing that the present invention is described further below.
Referring to Fig. 1; Electric double-layer capacitor of the present invention; Comprise that the non-conductive separator of a resistance to compression outer tube 1, insulator 2, metal collector 3, current-collector protective layer of being processed by graphite flake 4, conductive adhesive layer 5, electronics that is soaked by electrolyte 9, one comprise the activated carbon electrodes layer 7 of brown lead oxide and lead sulfate, an antiacid sealant 8 and an electrolyte 6 that comprises sulfuric acid; Wherein the mass ratio of lead sulfate and brown lead oxide is that one of percentage arrives one of percentage ten to 95 95 percent to percent; Wherein plumbous mass ratio is 20 2 percent to percent in the activated carbon electrodes layer 7; Said activated carbon electrodes layer 7 is divided into polarizable electrode layer and non-polarizable electrode layer; Mass ratio plumbous in the said polarizable electrode layer is 20 2 percent to percent, and mass ratio plumbous in the said non-polarizable electrode layer is 30 3 percent to percent, and said electrolyte 6 contains the electrolyte that is soaked with scheduled volume; Make that the electrolyte occupation rate is greater than or equal to 50 percent when charging fully; The electrolyte occupation rate is less than or equal to 50 percent when not exclusively charging, and said resistance to compression outer tube has an inner space, and this inner space is in vacuum.
In this example, adopted two negative electrodes, each is by four layers of spacing processing of active carbon, and is placed on the both sides of positive electrode and couples together.The grid that positive non-polarizable electrode is processed by an alloy that comprises plumbous and antimony constitutes, and a coating that comprises active mass and polytetrafluoroethylene is added in the opening of grid.According to chemical analysis, the mass ratio of the lead sulfate at device place and brown lead oxide is 95 percent in the discharge condition, and in complete charged state, the mass ratio of lead sulfate and brown lead oxide is 5 percent.This Electric double-layer capacitor improves higher capacitance, better sealing property and lower impedance when keeping high conductivity, insulation property are good in addition, and effectively reduce cost.
Claims (6)
1. Electric double-layer capacitor; It is characterized in that: comprise a resistance to compression outer tube, an insulator, a metal collector, current-collector protective layer, a conductive adhesive layer, the non-conductive separator of electronics, an activated carbon electrodes layer that comprises brown lead oxide and lead sulfate, an antiacid sealant and an electrolyte that comprises sulfuric acid of being soaked of processing by graphite flake by electrolyte; Wherein the mass ratio of lead sulfate and brown lead oxide is one of percentage to 95 95 percent to percent to one of percentage ten, and wherein plumbous mass ratio is 20 2 percent to percent in the activated carbon electrodes layer.
2. Electric double-layer capacitor according to claim 1 is characterized in that: said activated carbon electrodes layer is divided into polarizable electrode layer and non-polarizable electrode layer.
3. Electric double-layer capacitor according to claim 2 is characterized in that: mass ratio plumbous in the said polarizable electrode layer is 20 2 percent to percent.
4. Electric double-layer capacitor according to claim 2 is characterized in that: mass ratio plumbous in the said non-polarizable electrode layer is 30 3 percent to percent.
5. Electric double-layer capacitor according to claim 1; It is characterized in that: said electrolyte contains the electrolyte that is soaked with scheduled volume; Make that the electrolyte occupation rate is greater than or equal to 50 percent when charging fully, the electrolyte occupation rate is less than or equal to 50 percent when not exclusively charging.
6. Electric double-layer capacitor according to claim 1 is characterized in that: said resistance to compression outer tube has an inner space, and this inner space is in vacuum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101243088A CN102629521A (en) | 2012-04-26 | 2012-04-26 | Electric double-layer capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101243088A CN102629521A (en) | 2012-04-26 | 2012-04-26 | Electric double-layer capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102629521A true CN102629521A (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101243088A Pending CN102629521A (en) | 2012-04-26 | 2012-04-26 | Electric double-layer capacitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102629521A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294748A (en) * | 1997-12-18 | 2001-05-09 | 科学生产企业(埃克信) | Capacitor with dual electric layer |
| CN1295715A (en) * | 1997-12-18 | 2001-05-16 | 科学生产企业(埃克信) | Capacitor with dual electric layer |
| CN1518752A (en) * | 2001-05-03 | 2004-08-04 | C&T��˾ | Electric double-layer capacitor |
| CN101849308A (en) * | 2007-08-06 | 2010-09-29 | 电池工业及电动设备贸易有限公司 | The pole plate and the bipolar battery that are used for bipolar battery |
| CN102376451A (en) * | 2010-08-18 | 2012-03-14 | 精工电子有限公司 | Electrolytic solution for electric double layer capacitor, electric double layer capacitor using the same, and manufacturing method therefor |
-
2012
- 2012-04-26 CN CN2012101243088A patent/CN102629521A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294748A (en) * | 1997-12-18 | 2001-05-09 | 科学生产企业(埃克信) | Capacitor with dual electric layer |
| CN1295715A (en) * | 1997-12-18 | 2001-05-16 | 科学生产企业(埃克信) | Capacitor with dual electric layer |
| CN1518752A (en) * | 2001-05-03 | 2004-08-04 | C&T��˾ | Electric double-layer capacitor |
| CN101849308A (en) * | 2007-08-06 | 2010-09-29 | 电池工业及电动设备贸易有限公司 | The pole plate and the bipolar battery that are used for bipolar battery |
| CN102376451A (en) * | 2010-08-18 | 2012-03-14 | 精工电子有限公司 | Electrolytic solution for electric double layer capacitor, electric double layer capacitor using the same, and manufacturing method therefor |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120808 |