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CN101644723B - 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 PDF

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CN101644723B
CN101644723B CN 200910101640 CN200910101640A CN101644723B CN 101644723 B CN101644723 B CN 101644723B CN 200910101640 CN200910101640 CN 200910101640 CN 200910101640 A CN200910101640 A CN 200910101640A CN 101644723 B CN101644723 B CN 101644723B
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plastic casing
water solution
solution system
layer capacitor
electrode material
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CN101644723A (en
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陈再华
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Zhejiang Apex Energy Technology Co Ltd
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Zhejiang Forasen Energy Technology Co Ltd
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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 shells which 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 respectively arranged 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 lower plastic 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

The electrode material performance measurement of double electric layer capacitor in water solution system is with cell arrangement and assay method
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 through 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 WS 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 of aqueous electrolyte is high; Be more than 60 times of organic system; Add factors such as viscosity, ionic diffusion coefficient, the internal driving of water system is lower, generally is suitable for the power-type element of big electric current fast charging and discharging; And organic system is suitable for the accumulating type element of high-energy-density because proof voltage is high.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 of quality high, receive user's welcome deeply.
The electrolytic solution of water system EDLC can adopt the WS 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, thus be generally to adopt nonacid electrolytic solution such as potassium hydroxide at the laboratory evaluation electrode performance at present, more with the determination unit of materials such as stainless steel, copper, alloy; 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 of double electric layer capacitor in water solution system and uses cell arrangement, 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 adopts following technical scheme: said device comprises plastic casing and following plastic casing; The said plastic casing of going up is connected by the plastics screw with following plastic casing; The said 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, and the said 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 said cell arrangement, said go up plastic casing and following plastic casing, plastics screw use the hard resin of material as acid and alkali-resistance.Said 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.Said PE, PP, PS, PET, PVC, PTFE are respectively: tygon, polypropylene, polystyrene, PVC, 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 and gold more than 99.9% that the material of pure noble metal collector can be selected purity for use.
Said 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 said upward plastic casing is respectively thickness with following plastic casing; Said groove is a circular trough, and its diameter is that 10-20mm, the degree of depth are 0.1-0.5mm; Last plastic casing is respectively equipped with 6-12 said through hole with following plastic casing, and the diameter of said through hole is 1-3mm.
The pure noble metal current collection sheet very netted or with holes of said band lead, noble metal collector peripheral shape and groove coincide.
The pure noble metal current collection of said 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 are identical, 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 adopts following technical scheme: the said 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; Said 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 with the plastics screw and tighten with following plastic casing; After placing the water solution system electrolytic solution to vacuumize 10-60 minute said 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, said 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 scheme 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 WS of also applicable inorganic base or salt, and also 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 simultaneously 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; As the place of drawing of collector lead 2-7, the channel opening 2-1-4 direction of last plastic casing 2-1 is in the opposite direction with the channel opening 2-2-4 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.Between last lower casing, having two band platinum line 2-7, thickness 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, and when test: preparing two thickness is that 0.2-0.3mm, diameter are the activated carbon electrodes sheet 2-5 of 16mm, and 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 above that 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 greater than electrode slice on the electrode slice, a slice activated carbon electrodes sheet 2-5, platinum net collector 2-4 are placed in alignment in the above equally successively; Put plastic casing 2-1 then; During assembling, the channel opening of plastic casing will stagger relatively up and down, and is 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.Except the collector employing has 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, in Fig. 3, represents identical meaning with accompanying drawing 2 identical drawing reference numeral.
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 (9)

1. cell arrangement is used in the electrode material performance measurement of a double electric layer capacitor in water solution system; It is characterized in that said device comprises plastic casing and following plastic casing; The said plastic casing of going up is connected by the plastics screw with following plastic casing; The said 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, and the said 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 said cell arrangement, said go up plastic casing and following plastic casing, plastics screw use the hard resin of material as acid and alkali-resistance; 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.
2. cell arrangement is used in the electrode material performance measurement of a kind of double electric layer capacitor in water solution system as claimed in claim 1; It is characterized in that said 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. cell arrangement is used in the electrode material performance measurement of a kind of double electric layer capacitor in water solution system as claimed in claim 1, it is characterized in that it is that 2-4mm, the length of side are the square sheets of 25-40mm that said upward plastic casing is respectively thickness with following plastic casing; Said groove is a circular trough, and its diameter is that 10-20mm, the degree of depth are 0.1-0.5mm; Last plastic casing is respectively equipped with 6-12 said through hole with following plastic casing, and the diameter of said through hole is 1-3mm.
4. cell arrangement is used in the electrode material performance measurement of a kind of double electric layer capacitor in water solution system as claimed in claim 1, it is characterized in that the pure noble metal current collection sheet very netted or with holes of said band lead, and pure noble metal collector peripheral shape and groove coincide.
5. cell arrangement is used in the electrode material performance measurement of a kind of double electric layer capacitor in water solution system as claimed in claim 3; The pure noble metal current collection that it is characterized in that said band lead very thickness 0.1-0.3mm circular net or the disk 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.
6. method of utilizing claim 1,2,3,4 or 5 said 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 said 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; Said 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 with the plastics screw and tighten with following plastic casing; After placing the water solution system electrolytic solution to vacuumize 10-60 minute said cell arrangement, connect to discharge and recharge and carry out chemical property mensuration on the analyzer.
7. the method for the electrode material performance of mensuration double electric layer capacitor in water solution system as claimed in claim 6 is characterized in that said electrode slice to be measured is a water solution system electrode for super capacitor sheet.
8. the method for the electrode material performance of mensuration double electric layer capacitor in water solution system as claimed in claim 6 is characterized in that said electrode slice to be measured is the activated carbon electrodes sheet.
9. cell arrangement is used in the electrode material performance measurement of a kind of double electric layer capacitor in water solution system as claimed in claim 2; It is characterized in that said 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.
CN 200910101640 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 Active CN101644723B (en)

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CN109724508B (en) * 2019-01-26 2020-08-11 北京航空航天大学 Film flow liquid film thickness conductivity measurement sensor, device, system and calibration device
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 elimination system and method for electromagnetic exploration electric field measurement

Citations (6)

* Cited by examiner, † Cited by third party
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
CN1698148A (en) * 2003-05-30 2005-11-16 三洋电机株式会社 Electric double layer capacitor and electrolytic cell
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
CN1855325A (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
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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
CN1698148A (en) * 2003-05-30 2005-11-16 三洋电机株式会社 Electric double layer capacitor and electrolytic cell
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
CN1855325A (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
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

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