CN101644723A - Unit device for measuring performance of electrode material of double electric layer capacitor in water solution system and measuring method therefor - Google Patents
Unit device for measuring performance of electrode material of double electric layer capacitor in water solution system and measuring method therefor Download PDFInfo
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- CN101644723A CN101644723A CN 200910101640 CN200910101640A CN101644723A CN 101644723 A CN101644723 A CN 101644723A CN 200910101640 CN200910101640 CN 200910101640 CN 200910101640 A CN200910101640 A CN 200910101640A CN 101644723 A CN101644723 A CN 101644723A
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- plastic casing
- water solution
- solution system
- layer capacitor
- electrode material
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000003990 capacitor Substances 0.000 title claims abstract description 24
- 239000007772 electrode material Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 91
- 229920003023 plastic Polymers 0.000 claims abstract description 91
- 239000011347 resin Substances 0.000 claims abstract description 4
- 229920005989 resin Polymers 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 35
- 229910000510 noble metal Inorganic materials 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 17
- 239000008151 electrolyte solution Substances 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 18
- 239000003792 electrolyte Substances 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 abstract description 2
- 239000003513 alkali Substances 0.000 abstract 2
- 230000001458 anti-acid effect Effects 0.000 abstract 1
- 230000003412 degenerative effect Effects 0.000 abstract 1
- 239000010970 precious metal Substances 0.000 abstract 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 14
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 12
- 229910052697 platinum Inorganic materials 0.000 description 7
- 229920000915 polyvinyl chloride Polymers 0.000 description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- 238000003556 assay Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- -1 tetraethyl ammonium fluoroborate Chemical compound 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- SIXOAUAWLZKQKX-UHFFFAOYSA-N carbonic acid;prop-1-ene Chemical compound CC=C.OC(O)=O SIXOAUAWLZKQKX-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000007529 inorganic bases Chemical class 0.000 description 1
- 108010047805 oxytalan Proteins 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Electric Double-Layer Capacitors Or The Like (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention provides a unit device for measuring the performance of electrode material of a double electric layer capacitor in a water solution system, comprising an upper and a lower plastic shellswhich are connected with each other by plastic screws; symmetrical grooves are respectively arranged on the opposite surfaces of the upper and the lower plastic shells; through holes are respectivelyarranged at the symmetrical grooves of the upper and the lower plastic shells; the unit device is provided with a precious metal collector electrode provided with a lead, and the upper and the lowerplastic shells as well as the plastic screws are made of anti-acid and anti-alkali hard resin. The invention also provides a method for measuring the performance of the electrode material of the double electric layer capacitor in the water solution system by utilizing the unit device. The device can be applicable to solutions such as sulfuric acid and the like having corrosivity and the water solution of inorganic alkali or salt, is simple in structure and convenient in assembly, has no phenomena of corrosion and degenerative electrolyte in the measuring process, can be repeatedly used for a plurality of times, is good in economical efficiency and easy in the measuring method, and can be expected to be popularized.
Description
Technical field
The electrode material performance measurement that the present invention relates to a kind of double electric layer capacitor in water solution system is with cell arrangement and assay method.
Background technology
(Electric Double Layer Capacitor EDLC) also claims ultracapacitor to double layer capacitor, is to utilize the electrostatic double layer that forms between carbon material such as the activated charcoal possess bigger serface and electrolyte interface to come the novel energy-accumulating element of store charge.It possesses the intermediate characteristic of electric induction type capacitor and secondary cell.It also possesses following common capacitor and advantage that secondary cell did not possess:
(1) do not overcharge/overdischarge, can simplify electric loop and reduce price;
(2) can grasp residual capacity by voltage;
(3) the serviceability temperature wide ranges (30-+90);
(4) do not contain heavy metal, carrying capacity of environment is low;
(5) chemical reaction does not take place, long service life (more than 100,000 times).
Therefore, the purposes of EDLC is very extensive, small-sized (＜1F) as permanent memory back-up application in LSI, ULSI, RAM etc., medium-sized (1-500F) is used for household electrical appliances, electronic device, road sign, road rivet, toy and automobile brake insurance system, UPS etc. as storage power, and large-scale (500-5000F) is used for hybrid vehicle, electric car, elevator, automatically-controlled door, sun power/wind-power electricity generation, industry air-conditioning etc. as power supply or accessory power supply.
EDLC by electrolytic solution be divided into water solution system (hereinafter to be referred as: water system) and organic solution system (hereinafter to be referred as: organic system).Water system is to adopt the aqueous solution of sulfuric acid, potassium hydroxide plasma type inorganics as electrolyte, and organic system is that employing organic ion solution is electrolyte, is generally tetraethyl ammonium fluoroborate (Et
4NBF
4) propene carbonate solution such as (PC).Because the conductivity height of aqueous electrolyte, be more than 60 times of organic system, add factors such as viscosity, ionic diffusion coefficient, the internal driving of water system is lower, the power-type element that generally is suitable for big electric current fast charging and discharging, and organic system is suitable for the accumulating type element of high-energy-density owing to the proof voltage height.In addition, because water system EDLC does not need the moisture of strict control in process of production, technology, equipment are comparatively simple, so manufacturing cost is lower, the reliability height of quality, are subjected to user's welcome deeply.
The electrolytic solution of water system EDLC can adopt aqueous solution such as sulfuric acid, hydrochloric acid, potassium hydroxide, sodium chloride, potassium chloride, because the electric conductivity of sulfuric acid solution is the highest, so most employing sulfuric acid solutions are electrolytic solution in the EDLC goods.For accuracy and reliability that product properties is estimated, adopting sulfuric acid solution when requiring to estimate the EDLC electrode performance is electrolytic solution.But because sulfuric acid has strong corrosivity, material to determination unit has corrosion resistant requirement, so be generally to adopt nonacid electrolytic solution such as potassium hydroxide at the laboratory evaluation electrode performance at present, determination unit with materials such as stainless steel, copper, alloys is more, the unit that has adopts the device of gold, platinum, but its complex structure, with noble metal amount causes to cost an arm and a leg more, uses ubiquity poor.
Summary of the invention
Technical matters to be solved by this invention provides a kind of electrode material performance measurement cell arrangement of double electric layer capacitor in water solution system, simple in structure, assembly operation convenience, and low price, and the experimental determination that is suitable for general unit is used.For this reason, the present invention is by the following technical solutions: described device comprises plastic casing and following plastic casing, the described plastic casing of going up is connected by the plastics screw with following plastic casing, the described plastic casing of going up is respectively equipped with symmetrical groove with following plastic casing on the face of facing mutually, establishing the groove place, the described plastic casing of going up is respectively equipped with through hole with following plastic casing, be provided with the pure noble metal collector of band lead in the described cell arrangement, described what go up plastic casing and following plastic casing, plastics screw is the hard resin of acid and alkali-resistance with material.Described pure noble metal refers to that its content (purity) is more than 99.9%.
The material of the material of above-mentioned shell, plastics screw is the hard resin that comprises all acid and alkali-resistances of PE, PP, PS, PET, PVC, PTFE etc.Described PE, PP, PS, PET, PVC, PTFE are respectively: tygon, polypropylene, polystyrene, Polyvinylchloride, teflon.
When adopting above technical scheme, the present invention also can adopt following further technical scheme simultaneously:
It is all noble metals such as platinum more than 99.9% and gold that the material of pure noble metal collector can be selected purity for use.
Described one side of going up the groove of plastic casing is provided with opening, one side the groove of following plastic casing also be provided with opening, the channel opening direction of last plastic casing and the channel opening direction of following plastic casing stagger.
Be respectively equipped with the screw hole that cooperates with the plastics screw on last plastic casing and the following plastic casing, the screw hole diameter of last plastic casing than the plastics screw slightly greatly and do not have tap, the screw hole of following plastic casing to have the size of screw thread and screw hole and plastics screw identical.
It is that 2-4mm, the length of side are the square sheets of 25-40mm that described upward plastic casing and following plastic casing are respectively thickness; Described groove is a circular trough, and its diameter is that 10-20mm, the degree of depth are 0.1-0.5mm; Last plastic casing and following plastic casing are respectively equipped with 6-12 described through hole, and the diameter of described through hole is 1-3mm.
The pure noble metal current collection sheet very netted or with holes of described band lead, noble metal collector peripheral shape and groove coincide.
The pure noble metal current collection of described band lead very thickness 0.1-0.3mm circular net or the garden sheet of the circular hole of 6-12 diameter 1-3mm is arranged, its peripheral shape and groove coincide, its with the material of lead identical with the material of noble metal collector.
Another technical matters to be solved of the present invention provides a kind of method of utilizing said apparatus to measure the electrode material performance of double electric layer capacitor in water solution system.For this reason, the present invention is by the following technical solutions: the described pure noble metal current collection pole piece of a slice is placed in the top and bottom at two electrode slices to be measured, the diaphragm paper of water solution system on folder between two electrodes to be measured, described electrode slice to be measured, pure noble metal collector are contained in the groove in plastic casing and the following plastic casing, will go up plastic casing and following plastic casing is tightened with the plastics screw; After placing the water solution system electrolytic solution to vacuumize 10-60 minute described cell arrangement, connect to discharge and recharge and carry out chemical property mensuration on the analyzer.
In the assay method provided by the present invention, described electrode slice to be measured is a water solution system electrode for super capacitor sheet, such as the activated carbon electrodes sheet.
Owing to adopt the solution of the present invention, the electrode material performance measurement of double electric layer capacitor in water solution system provided by the invention goes for having solution such as corrosive sulfuric acid with cell arrangement, the aqueous solution of also applicable inorganic base or salt, and it is simple in structure, easy to assembly, it is rotten that corrosion and electrolytic solution do not take place in the mensuration process, can be repeatedly used, good economy performance can be expected to popularize, and assay method is simple.
Description of drawings
Fig. 1 a is the decomposing schematic representation of plastic casing in the present invention and following plastic casing.
Fig. 1 b is the combination synoptic diagram of plastic casing in the present invention and following plastic casing.
Fig. 2 is the decomposing schematic representation of the embodiment of the invention 1.
Fig. 3 is the decomposing schematic representation of the embodiment of the invention 2.
Embodiment
Embodiment 1
With reference to accompanying drawing 1a, 1b, 2.The material of last plastic casing and following plastic casing is hard PE, and last plastic casing 2-1 and following plastic casing 2-2 thickness are that 3mm, the length of side are two shells of boring a hole about 30mm foursquare, separately Yi Mian central authorities diameter is arranged is that (area is 2cm to 16mm
2), the degree of depth is circular trough 2-1-1 and the 2-2-1 of 0.3mm, circular hole 2-1-2 and 2-2-2 that the symmetric offset spread of 9 diameter 2mm is arranged in circular trough, this groove is toward foursquare openings at one side, the place of drawing as collector lead 2-7, the channel opening 2-1-4 direction of last plastic casing 2-1 is opposite with the channel opening 2-2-4 direction of following plastic casing 2-2, prevents collector lead contact up and down; On four angles of two perforated plastic shells up and down four screw holes are arranged respectively, the screw hole 2-1-3 on the last plastic casing does not have the hole of tap for diameter 3.2mm, and the screw hole 2-2-3 on the following plastic casing is the hole that tap is arranged of diameter 3.0mm.Be equipped with the screw 2-3 of the hard PVC material of four diameter 3.0mm.Having two band platinum line 2-7, thickness between last lower casing is the netted 2-4 of circular pure platinum of 0.1mm, and its peripheral shape and groove 2-1-1 and 2-2-1 coincide.
With the activated carbon electrodes sheet is example, when test: preparing two thickness is 0.2-0.3mm, diameter is the activated carbon electrodes sheet 2-5 of 16mm, the peripheral shape of activated carbon electrodes sheet and groove 2-1-1 and 2-2-1 coincide, in the circular trough 2-2-1 of following plastic casing 2-2, put a slice platinum net collector 2-4, aim at thereon and place a slice activated carbon electrodes sheet 2-5, after placing diaphragm paper (the PTFE matter of thickness 30-100 μ m or other the oxytalan film) 2-6 of area on the electrode slice greater than electrode slice, a slice activated carbon electrodes sheet 2-5 is placed in alignment in the above equally successively, platinum net collector 2-4, put plastic casing 2-1 then, during assembling, the channel opening of plastic casing will stagger relatively up and down, opposite such as the opening direction that makes them, in case the contact of the lead on the collector causes short circuit up and down, tighten with four screw 2-3 at last.With this determination unit be dipped in vacuumize 10-60 minute in the water solution system electrolytic solution after, connect to discharge and recharge and carry out chemical property on the analyzer and measure and promptly can be used for EDLC electrode material performance evaluation.Water solution system electrolytic solution can be water solution system electrolytic solutions such as 30%-40% sulfuric acid or potassium hydroxide.
Embodiment 2
With reference to accompanying drawing 3.To have 9 diameters is that 2mm circular hole 3-4-1, thickness are that other basic structures are identical with embodiment 1 with assembling mode the platinum disk 3-4 of 0.1mm except collector adopts, and in Fig. 3, the drawing reference numeral identical with accompanying drawing 2 represented identical meaning.
Embodiment 3
Except the material employing hard PVC material of shell, other basic structures are identical with embodiment 1 with assembling mode.
Embodiment 4
Except the material of collector is the gold material, other basic structures are identical with embodiment 2 with assembling mode.
Claims (10)
1. the electrode material performance measurement cell arrangement of a double electric layer capacitor in water solution system, it is characterized in that described device comprises plastic casing and following plastic casing, the described plastic casing of going up is connected by the plastics screw with following plastic casing, the described plastic casing of going up is respectively equipped with symmetrical groove with following plastic casing on the face of facing mutually, establishing the groove place, the described plastic casing of going up is respectively equipped with through hole with following plastic casing, be provided with the pure noble metal collector of band lead in the described cell arrangement, described plastic casing and the following plastic casing gone up, the plastics screw be the hard resin of acid and alkali-resistance with material.
2. the electrode material performance measurement cell arrangement of a kind of double electric layer capacitor in water solution system as claimed in claim 1, it is characterized in that described one side of going up the groove of plastic casing is provided with opening, one side of the groove of following plastic casing also is provided with opening, and the channel opening direction of last plastic casing staggers with the channel opening direction of following plastic casing.
3. the electrode material performance measurement cell arrangement of a kind of double electric layer capacitor in water solution system as claimed in claim 1, it is characterized in that being respectively equipped with the screw hole that cooperates with the plastics screw on plastic casing and the following plastic casing, the screw hole diameter of last plastic casing is big slightly and do not have tap, the screw hole of following plastic casing to have the size of screw thread and screw hole and plastics screw identical than the plastics screw.
4. the electrode material performance measurement cell arrangement of a kind of double electric layer capacitor in water solution system as claimed in claim 1 is characterized in that it is that 2-4mm, the length of side are the square sheets of 25-40mm that described upward plastic casing and following plastic casing are respectively thickness; Described groove is a circular trough, and its diameter is that 10-20mm, the degree of depth are 0.1-0.5mm; Last plastic casing and following plastic casing are respectively equipped with 6-12 described through hole, and the diameter of described through hole is 1-3mm.
5. the electrode material performance measurement cell arrangement of a kind of double electric layer capacitor in water solution system as claimed in claim 1 is characterized in that the pure noble metal current collection sheet very netted or with holes of described band lead, and pure noble metal collector peripheral shape and groove coincide.
6. the electrode material performance measurement cell arrangement of a kind of double electric layer capacitor in water solution system as claimed in claim 4, the pure noble metal current collection that it is characterized in that described band lead very thickness 0.1-0.3mm circular net or the garden sheet of the circular hole of 6-12 diameter 1-3mm is arranged, its peripheral shape and groove coincide, its with the material of lead identical with the material of noble metal collector.
7. method of utilizing claim 1,2,3,4,5 or 6 described cell arrangements to measure the electrode material performance of double electric layer capacitor in water solution system is characterized in that it may further comprise the steps:
The described pure noble metal collector of a slice is placed in top and bottom at two electrode slices to be measured, the diaphragm paper of water solution system on folder between two electrodes to be measured, described electrode slice to be measured, pure noble metal collector are contained in the groove in plastic casing and the following plastic casing, will go up plastic casing and following plastic casing is tightened with the plastics screw; After placing the water solution system electrolytic solution to vacuumize 10-60 minute described cell arrangement, connect to discharge and recharge and carry out chemical property mensuration on the analyzer.
8. the method for the electrode material performance of mensuration double electric layer capacitor in water solution system as claimed in claim 7 is characterized in that described electrode slice to be measured is a water solution system electrode for super capacitor sheet.
9. the method for the electrode material performance of mensuration double electric layer capacitor in water solution system as claimed in claim 7 is characterized in that described electrode slice to be measured is the activated carbon electrodes sheet.
10. the electrode material performance measurement cell arrangement of a kind of double electric layer capacitor in water solution system as claimed in claim 2, it is characterized in that described one side of going up the groove of plastic casing is provided with opening, one side of the groove of following plastic casing also is provided with opening, when connecting with the plastics screw, the channel opening direction of last plastic casing staggers with the channel opening direction of following plastic casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910101640 CN101644723B (en) | 2009-08-20 | 2009-08-20 | Unit device for measuring performance of electrode material of double electric layer capacitor in water solution system and measuring method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910101640 CN101644723B (en) | 2009-08-20 | 2009-08-20 | Unit device for measuring performance of electrode material of double electric layer capacitor in water solution system and measuring method therefor |
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| Publication Number | Publication Date |
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| CN101644723A true CN101644723A (en) | 2010-02-10 |
| CN101644723B CN101644723B (en) | 2012-12-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724508A (en) * | 2019-01-26 | 2019-05-07 | 北京航空航天大学 | Pad pasting flowing liquid membrane thickness conductance type measurement sensor, device, system and caliberating device |
| CN113406708A (en) * | 2021-06-18 | 2021-09-17 | 中国科学院地质与地球物理研究所 | Electrode range eliminating system and method for electromagnetic prospecting electric field measurement |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001351833A (en) * | 2000-06-07 | 2001-12-21 | Toyobo Co Ltd | Electric double-layer capacitor |
| JP2002151364A (en) * | 2000-11-09 | 2002-05-24 | Asahi Glass Co Ltd | Electric double-layer capacitor and its manufacturing method |
| JP2004356461A (en) * | 2003-05-30 | 2004-12-16 | Sanyo Electric Co Ltd | Electric double layer chip capacitor and chip electrolyte battery |
| CN1855326A (en) * | 2005-04-25 | 2006-11-01 | 电源系统株式会社 | Positive electrode for electric double layer capacitors and method for the production thereof |
| US20060245143A1 (en) * | 2005-04-25 | 2006-11-02 | Power Systems Co., Ltd. | Positive electrode for electric double layer capacitors and method for the production thereof |
| CN201477065U (en) * | 2009-08-20 | 2010-05-19 | 浙江富来森炭材料有限公司 | Unit device for measuring performance of electrode material of aqueous solution series double electric layer capacitor |
-
2009
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724508A (en) * | 2019-01-26 | 2019-05-07 | 北京航空航天大学 | Pad pasting flowing liquid membrane thickness conductance type measurement sensor, device, system and caliberating device |
| CN109724508B (en) * | 2019-01-26 | 2020-08-11 | 北京航空航天大学 | Conductive measurement sensor, device, system and calibration device for thickness of film-attached flowing liquid film |
| CN113406708A (en) * | 2021-06-18 | 2021-09-17 | 中国科学院地质与地球物理研究所 | Electrode range eliminating system and method for electromagnetic prospecting electric field measurement |
| CN113406708B (en) * | 2021-06-18 | 2022-01-04 | 中国科学院地质与地球物理研究所 | Electrode range eliminating system and method for electromagnetic prospecting electric field measurement |
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| CN101644723B (en) | 2012-12-05 |
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Effective date of registration: 20171226 Address after: 323010 Zhejiang province Lishui Nanming Mountain District of Liandu city streets Shiniu Road No. 268 Building No. 3 building B Patentee after: Zhejiang apex Energy Technology Co Ltd Address before: Zhejiang province Lishui City Qin road 323000 Shuige Industrial Zone No. 10 Patentee before: ZHEJIANG FORASEN ENERGY SCIENCE & TECHNOLOGY CO., LTD. |