CN107221626A - The application of potassium ferrocyanide iron/anthraquinone battery separator - Google Patents
The application of potassium ferrocyanide iron/anthraquinone battery separator Download PDFInfo
- Publication number
- CN107221626A CN107221626A CN201710348303.6A CN201710348303A CN107221626A CN 107221626 A CN107221626 A CN 107221626A CN 201710348303 A CN201710348303 A CN 201710348303A CN 107221626 A CN107221626 A CN 107221626A
- Authority
- CN
- China
- Prior art keywords
- anthraquinone
- potassium ferrocyanide
- battery
- iron
- barrier film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
-
- 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
- Y02E60/10—Energy storage using batteries
Abstract
The invention belongs to derived energy chemical field, there is provided a kind of application of potassium ferrocyanide iron/anthraquinone battery separator.Barrier film is using chloromethane based polyalcohol as functional molecular presoma, using poly tetrafluoroethylene as basement membrane, after compound, carry out quaternized preparing potassium ferrocyanide iron/anthraquinone battery separator again, the barrier film can separate both positive and negative polarity electrolyte and conduction ionic equilibrium, applied to solubility and dispersiveness of the raising anthraquinone in potassium ferrocyanide iron/anthraquinone battery electrolyte.The barrier film that the present invention is provided not only has high mechanical strength, and can improve anthraquinone solubility in the electrolytic solution and decentralization, ensure that the high-performance of potassium ferrocyanide iron/anthraquinone battery.
Description
Technical field
The invention belongs to derived energy chemical field, it is related to a kind of application of potassium ferrocyanide iron/anthraquinone battery separator.
Background technology
Potassium ferrocyanide iron/anthraquinone battery is that a kind of negative electrode active material is hydroxy-anthraquione, just extremely potassium ferrocyanide
Battery.Anthraquinone generally existing in nature, also can not only not limited by artificial synthesized by reserves, and it is more environmentally-friendly and
Battery cost is largely reduced, potassium ferrocyanide is a kind of conventional food additives.Therefore this battery has
Bigger development potentiality, the focus studied as battery.At present, potassium ferrocyanide iron/anthraquinone used in battery barrier film is perfluor sulphur
Sorrel, this film is expensive, is commercialized to form very big obstruction for potassium ferrocyanide iron/anthraquinone battery.
Barrier film is one of critical component of flow battery, plays the work for separating both positive and negative polarity electrolyte and conduction ionic equilibrium
With.The quality of barrier film water imbibition determines the height of the ion exchange capacity of film, while affecting the mechanical performance and face electricity of film
Hinder size.
The content of the invention
The problem of existing for prior art, the present invention provides a kind of based on polytetrafluoroethylene (PTFE) and quaternized high molecular polymerization
The composite membrane of thing, preparation method and applications.
In order to achieve the above object, the technical scheme is that：
A kind of application of potassium ferrocyanide iron/anthraquinone battery separator, described barrier film is using chloromethane based polyalcohol as function
Property molecular precursor, using poly tetrafluoroethylene as basement membrane, after being combined, then carry out quaternized preparing potassium ferrocyanide iron/anthracene
Quinone battery separator, the barrier film can separate both positive and negative polarity electrolyte and conduction ionic equilibrium, applied to raising anthraquinone in ferrocyanide
Solubility and dispersiveness in potassium iron/anthraquinone battery electrolyte.Distinctive N+ structures can make hydroxy-anthraquione network therewith in its barrier film
Close, strengthen the polarity of anthraquinone, improve solubility and dispersiveness of the anthraquinone in aqueous slkali.Described chloromethylated polymer includes chlorine
Methylate polysulfones, chloromethylation polyether sulfone, chloromethylation polyether-ketone, chloromethylation polyimides；Described poly tetrafluoroethylene
Porosity be more than 70%.
The preparation method of above-mentioned potassium ferrocyanide iron/anthraquinone battery separator, comprises the following steps：
The first step, chloromethylated polymer is dissolved in organic solvent and forms solution A.Described chloromethylated polymer bag
Including chloromethyl polysulphone, chloromethylation polyether sulfone, chloromethylation polyether-ketone, chloromethylation polyimides has the height of high conductivity
Molecularly Imprinted Polymer；Described organic solvent includes dimethyl sulfoxide (DMSO), 1-METHYLPYRROLIDONE, DMAC N,N' dimethyl acetamide, N, N-
Dimethylformamide.
Second step, the poly tetrafluoroethylene that one piece of porosity is more than 70% is stretched out and kept flat on a glass, is added a small amount of
Alcohol is by its complete wetting, and bubble removing, adds a small amount of high boiling solvent side by side, it is carried out solution exchange.Described height boiling
Point solvent is 1-METHYLPYRROLIDONE, dimethyl sulfoxide (DMSO), 1-METHYLPYRROLIDONE, DMA, N, N- dimethyl
Formamide.
3rd step, is added drop-wise to poly tetrafluoroethylene surface by solution A, poly tetrafluoroethylene is completely immersed in solution,
Film is evaporated at 30-80 DEG C, polytetrafluoroethylene (PTFE)/chloromethylated polymer composite membrane is obtained.
4th step, weight/mass percentage composition is immersed in for 10-40% by polytetrafluoroethylene (PTFE)/chloromethylated polymer composite membrane
Trimethylamine solution in, after film softening after take out, with the trimethylamine solution of distilled water flushing surface residual, obtain potassium ferrocyanide
Iron/anthraquinone battery separator.
Beneficial effects of the present invention are：The film not only has high mechanical strength, and is being electrolysed with that can improve anthraquinone
Solubility in liquid, ensure that potassium ferrocyanide iron/anthraquinone battery high-performance；Simultaneously because its is with low cost, can be Asia
Potassium ferricyanide iron/anthraquinone battery industryization is provided may.
Embodiment
The present invention is done below in conjunction with specific embodiment into once illustrating.
Embodiment 1
The first step, 1 gram of chloromethyl polysulphone is put into beaker, adds 50mlN- methyl pyrrolidones, is dissolved by heating.
Second step, the poly tetrafluoroethylene of one piece of 80% porosity is tightly secured on the iron plate of ring-type, glass is lain in
In glass plate, a small amount of alcohol is added by its complete wetting, bubble removing, adds a small amount of 1-METHYLPYRROLIDONE side by side, carries out it
Solution is exchanged.
3rd step, above-mentioned solution is slowly poured on glass plate, poly tetrafluoroethylene is completely immersed in solution, at 40 DEG C
Lower evaporation film.
4th step, polytetrafluoroethylene (PTFE)/chloromethyl polysulphone composite membrane is immersed in certain 20% trimethylamine aqueous solution.Treat
Film takes out after softening, and with the trimethylamine solution of distilled water flushing surface residual, obtains quaternized anion PEM.
The tensile strength of barrier film prepared by the present invention is more than 20MPa, and ionic conductivity is used up to more than 0.02S/cm
In potassium ferrocyanide iron/anthraquinone battery, monocell open-circuit voltage is more than the 0.9V. internal resistances of cell and is less than 1 ohm/cm2, the barrier film
Both positive and negative polarity electrolyte and conduction ionic equilibrium can be separated, applied to raising anthraquinone in potassium ferrocyanide iron/anthraquinone battery electrolyte
In solubility and dispersiveness.
Claims (2)
1. a kind of application of potassium ferrocyanide iron/anthraquinone battery separator, it is characterised in that using chloromethane based polyalcohol as feature
Molecular precursor, using poly tetrafluoroethylene as basement membrane, it is compound after carry out quaternized preparing potassium ferrocyanide iron/anthraquinone battery
With barrier film, described barrier film can separate both positive and negative polarity electrolyte and conduction ionic equilibrium, applied to raising anthraquinone in potassium ferrocyanide
Solubility and dispersiveness in iron/anthraquinone battery electrolyte；The porosity of described poly tetrafluoroethylene is more than 70%.
2. a kind of application of potassium ferrocyanide iron/anthraquinone battery separator according to claim 1, it is characterised in that institute
The chloromethylated polymer stated includes chloromethyl polysulphone, chloromethylation polyether sulfone, chloromethylation polyether-ketone, chloromethylation polyamides
Imines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348303.6A CN107221626A (en) | 2017-05-18 | 2017-05-18 | The application of potassium ferrocyanide iron/anthraquinone battery separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348303.6A CN107221626A (en) | 2017-05-18 | 2017-05-18 | The application of potassium ferrocyanide iron/anthraquinone battery separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107221626A true CN107221626A (en) | 2017-09-29 |
Family
ID=59944179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710348303.6A Withdrawn CN107221626A (en) | 2017-05-18 | 2017-05-18 | The application of potassium ferrocyanide iron/anthraquinone battery separator |
Country Status (1)
| Country | Link |
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| CN (1) | CN107221626A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224296A (en) * | 2021-04-14 | 2021-08-06 | 辽宁大学 | Anthraquinone-based organic cathode material and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4024043A (en) * | 1975-12-31 | 1977-05-17 | Allied Chemical Corporation | Single film, high performance bipolar membrane |
| CN202159742U (en) * | 2011-06-15 | 2012-03-07 | 深圳市氢动力科技有限公司 | Compound anion exchange membrane for fuel cell |
| CN102790228A (en) * | 2012-07-30 | 2012-11-21 | 江苏欧力特能源科技有限公司 | Zinc-bromine flow battery anion exchange film |
| CN103000924A (en) * | 2011-09-16 | 2013-03-27 | 清华大学 | Organic phase dual flow battery |
| CN103387690A (en) * | 2012-05-09 | 2013-11-13 | 中国科学院大连化学物理研究所 | Preparation method of cross-linking type composite anion-exchange membrane |
-
2017
- 2017-05-18 CN CN201710348303.6A patent/CN107221626A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4024043A (en) * | 1975-12-31 | 1977-05-17 | Allied Chemical Corporation | Single film, high performance bipolar membrane |
| CN202159742U (en) * | 2011-06-15 | 2012-03-07 | 深圳市氢动力科技有限公司 | Compound anion exchange membrane for fuel cell |
| CN103000924A (en) * | 2011-09-16 | 2013-03-27 | 清华大学 | Organic phase dual flow battery |
| CN103387690A (en) * | 2012-05-09 | 2013-11-13 | 中国科学院大连化学物理研究所 | Preparation method of cross-linking type composite anion-exchange membrane |
| CN102790228A (en) * | 2012-07-30 | 2012-11-21 | 江苏欧力特能源科技有限公司 | Zinc-bromine flow battery anion exchange film |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224296A (en) * | 2021-04-14 | 2021-08-06 | 辽宁大学 | Anthraquinone-based organic cathode material and preparation method and application thereof |
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Application publication date: 20170929 |