CN102544527B - Preparation method of battery system using ionic selective film - Google Patents
Preparation method of battery system using ionic selective film Download PDFInfo
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- CN102544527B CN102544527B CN201210027194.5A CN201210027194A CN102544527B CN 102544527 B CN102544527 B CN 102544527B CN 201210027194 A CN201210027194 A CN 201210027194A CN 102544527 B CN102544527 B CN 102544527B
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention relates to a preparation method of a battery system using an ionic selective film, which considers 2-3 gram of polyvinyl ether (PVE) powder and 3-4 gram of polyvinyl chloride (PVC) powder as a substrate, and enables the substrate to be heated to reach a fusion state, then obtains 38-41 gram of sodium nitrite, 7-9 gram of sodium nitrite salt and 51-55 gram of potassium nitrate salt to serve as an electroactive material to mix and heat to the fusion state, enables the two fusion solution to be mixed and cooled to 90-110 DEG C, rolling the mixture to form a film, cools the mixture to obtain a sensitive film, and finally assembles to be the battery system. The battery system prepared by the method has the advantages of being good in strength and stability and low in construction cost.
Description
Technical field
The present invention relates to a kind of preparation method who adopts the battery system of ion selective membrane.
Background technology
ISE is one of the fastest analytical technology of development in recent years, has formed the potentiometry of system.It is simple that this analytic approach has equipment, easy to operate, be suitable for the features such as on-site measurement and automatic continuous analysis measurement, become industrial production control, environmental monitoring, theoretical research and with the novel important tool of the Relevant Analysis work such as ocean, geology, medical science, chemical industry, metallurgy, atomic energy industry, food processing, agricultural.
ISE is a class electrochemical sensor, mainly comprises three parts:
(1) sensitive membrane: be the part of ISE most critical, the character of determining electrode, its effect is that specific ion activity in solution is transformed into film potential;
(2) internal reference electrode: its role is to film potential to draw;
(3) interior reference solution: contain the ion with film and internal reference electrode response.
As most important part in ISE, sensitive membrane can be carried out selective response to the ion in solution.In the situation that the ionic strength in solution is certain, the current potential of ISE and the logarithm of given ionic activity are linear, meet Nernst equation.
The Specifeca tion speeification of ISE is intensity, stability, reappearance and life-span, and wherein the stability of ISE refers to that a certain concentration of this electrode METHOD FOR CONTINUOUS DETERMINATION is when measured ion, the size of its potential fluctuation amplitude.When reappearance represents that electrode is repeatedly alternately measured in the solution of variable concentrations, the degree that its current potential reappears, hysteresis and the memory effect of reflection electrode.Generally with the standard deviation (SD) of electrode potential reading, represent stability and the reappearance of electrode.The life-span of electrode refers to the time that keeps electrode performance parameter constant, and the life-span of electrode is longer, and use value is larger.
The development of membrane electrode all has practical significance for actual production and research.Therefore about for the preparation of membrane electrode also existing many achievements in research, yet although existing membrane electrode performance parameter is fine, as organic sulfonate polymeric membrane etc., its cost is very high, is not suitable for promoting on a large scale; Although and some existing sensitive membrane cost is more moderate, strength and stability is not enough.
Summary of the invention
The object of this invention is to provide a kind of method that low cost and strength and stability adopt the battery system of ion selective membrane reliably of preparing.
For achieving the above object, technical scheme of the present invention is: a kind of preparation method who adopts the battery system of ion selective membrane, comprises the following steps:
1) configuration polymer is supported body
Get 2 ~ 3 grams of PVE powder and 3 ~ 4 grams of PVC powder, after mixing, be heated to molten condition;
2) configuration electroactive material
Meanwhile, get 38 ~ 41 grams of nitrous acid sodium salts, 7 ~ 9 grams of nitric acid sodium salts, 51 ~ 55 grams of potassium salts, after mixing, be heated to molten condition;
3) prepare sensitive membrane
Two kinds of melt solutions are mixing, while being cooled to 90 ~ 110 ° of C, by this mixture calendering film forming, make sensitive membrane after cooling;
4) assembling of battery system
This film is assemblied in H type electrolytic cell, adds the chromium sulfate of 1mol/L in a side of electrolytic cell, opposite side adopts the electrode forming in 8:1:1 ratio with potassium manganate, carbon black, polytetrafluoroethylene, is assembled in 0.2mol/L lithium sulfate solution.
The present invention, by great many of experiments, is mixed and heated to melting by the matrix of said components and proportioning and ion activity material, after mixing, by the method for rolling, extruding, prepares sensitive membrane, has increased the mechanical strength of sensitive membrane, is convenient to produce.Beneficial effect of the present invention is, through METHOD FOR CONTINUOUS DETERMINATION, can obtain operating voltage more than 1.1V, the film potential value variation of 10 measurement results is no more than 1mV, after measuring for 20 times, have no capacity attenuation, illustrate that the strength and stability of membrane electrode of the present invention is all better, and cost is relatively low.
Embodiment
The present invention is through a kind of preferred technical scheme that obtains of experiment, specifically using 2 ~ 3 grams of PVE powder and 3 ~ 4 grams of PVC powder as matrix, and is heated to molten condition; Then get 38 ~ 41 grams of nitrous acid sodium salts, 7 ~ 9 grams of nitric acid sodium salts, 51 ~ 55 grams of potassium salts, as electroactive material, after mixing, be heated to molten condition; Two kinds of melt solutions are mixing, while being cooled to 90 ~ 110 ° of C, by this mixture calendering film forming, make sensitive membrane after cooling; And then be assembled into battery system.
Wherein, below in conjunction with embodiment and test effect, describe,
Embodiment 1:
1) configuration polymer is supported body
Get 2 grams of PVE powder and 3 grams of PVC powder, after mixing, be heated to molten condition;
2) configuration electroactive material
Meanwhile, get 38 grams of nitrous acid sodium salts, 7 grams of nitric acid sodium salts, 51 grams of potassium salts, after mixing, be heated to molten condition;
3) prepare sensitive membrane
Two kinds of melt solutions are mixing, while being cooled to 90 ° of C, by this mixture calendering film forming, make sensitive membrane after cooling;
4) assembling of battery system
This film is assemblied in H type electrolytic cell, adds the chromium sulfate of 1mol/L in a side of electrolytic cell, opposite side adopts the electrode forming in 8:1:1 ratio with potassium manganate, carbon black, polytetrafluoroethylene, is assembled in 0.2mol/L lithium sulfate solution.
The battery system METHOD FOR CONTINUOUS DETERMINATION that this embodiment is made, can obtain operating voltage more than 1.1V, and the film potential value variation of 10 measurement results is no more than 1mV, and 20 times mensuration has no capacity attenuation, illustrates that the strength and stability of this battery system is all better.
Embodiment 2
1) configuration polymer is supported body
Get 3 grams of PVE powder and 4 grams of PVC powder, after mixing, be heated to molten condition;
2) configuration electroactive material
Meanwhile, get 41 grams of nitrous acid sodium salts, 9 grams of nitric acid sodium salts, 55 grams of potassium salts, after mixing, be heated to molten condition;
3) prepare sensitive membrane
Two kinds of melt solutions are mixing, while being cooled to 110 ° of C, by this mixture calendering film forming, make sensitive membrane after cooling;
4) assembling of battery system
This film is assemblied in H type electrolytic cell, adds the chromium sulfate of 1mol/L in a side of electrolytic cell, opposite side adopts the electrode forming in 8:1:1 ratio with potassium manganate, carbon black, polytetrafluoroethylene, is assembled in 0.2mol/L lithium sulfate solution.
The battery system METHOD FOR CONTINUOUS DETERMINATION that this embodiment is made, can obtain operating voltage more than 1.1V, and the film potential value variation of 10 measurement results is no more than 1mV, after measuring for 20 times, has no capacity attenuation, illustrates that the strength and stability of this battery system is all better.
The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to claim scope.
Claims (1)
1. a preparation method who adopts the battery system of ion selective membrane, is characterized in that, this preparation method comprises the following steps:
1) configuration polymer is supported body
Get 2 ~ 3 grams of PVE powder and 3 ~ 4 grams of PVC powder, after mixing, be heated to molten condition;
2) configuration electroactive material
Meanwhile, get 38 ~ 41 grams of nitrous acid sodium salts, 7 ~ 9 grams of nitric acid sodium salts, 51 ~ 55 grams of potassium salts, after mixing, be heated to molten condition;
3) prepare sensitive membrane
Two kinds of melt solutions are mixing, while being cooled to 90 ~ 110 ° of C, by this mixture calendering film forming, make sensitive membrane after cooling;
4) assembling of battery system
This film is assemblied in H type electrolytic cell, adds the chromium sulfate of 1mol/L in a side of electrolytic cell, opposite side adopts the electrode forming in 8:1:1 ratio with potassium manganate, carbon black, polytetrafluoroethylene, is assembled in 0.2mol/L lithium sulfate solution.
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| CN102544527B true CN102544527B (en) | 2014-08-27 |
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| CA2047991A1 (en) * | 1991-02-04 | 1992-08-05 | John Musacchio | Solid contact system for potentiometric sensors |
| KR100329393B1 (en) * | 1998-06-24 | 2002-08-28 | 차근식 | Reference Electrode Using Solvent Soluble Polymer |
| CN101222055B (en) * | 2008-01-09 | 2011-08-17 | 清华大学 | Co-polymer based polymer electrolyte material for lithium battery, compound electrolyte film and its preparation method |
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