CN108364803A - A kind of fire-retardant method for preparing gel polymer electrolyte of all-solid-state supercapacitor based on lithium alginate - Google Patents
A kind of fire-retardant method for preparing gel polymer electrolyte of all-solid-state supercapacitor based on lithium alginate Download PDFInfo
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- CN108364803A CN108364803A CN201810044277.2A CN201810044277A CN108364803A CN 108364803 A CN108364803 A CN 108364803A CN 201810044277 A CN201810044277 A CN 201810044277A CN 108364803 A CN108364803 A CN 108364803A
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- Prior art keywords
- lithium
- gel polymer
- polymer electrolyte
- alginate
- solid
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 33
- 239000005518 polymer electrolyte Substances 0.000 title claims abstract description 30
- 235000010443 alginic acid Nutrition 0.000 title claims abstract description 21
- 229920000615 alginic acid Polymers 0.000 title claims abstract description 21
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229940072056 alginate Drugs 0.000 title claims abstract description 16
- 239000003063 flame retardant Substances 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 13
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 claims abstract description 9
- 229920000642 polymer Polymers 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000007772 electrode material Substances 0.000 claims description 3
- 239000005357 flat glass Substances 0.000 claims description 3
- 239000007784 solid electrolyte Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000000783 alginic acid Substances 0.000 claims description 2
- 229960001126 alginic acid Drugs 0.000 claims description 2
- 150000004781 alginic acids Chemical class 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 claims 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 229920001285 xanthan gum Polymers 0.000 claims 1
- 238000004146 energy storage Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000002360 explosive Substances 0.000 abstract description 2
- 239000003792 electrolyte Substances 0.000 abstract 1
- 239000000499 gel Substances 0.000 description 18
- 239000003990 capacitor Substances 0.000 description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 241001474374 Blennius Species 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011244 liquid electrolyte Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- AEMOLEFTQBMNLQ-SYJWYVCOSA-N (2s,3s,4s,5s,6r)-3,4,5,6-tetrahydroxyoxane-2-carboxylic acid Chemical compound O[C@@H]1O[C@H](C(O)=O)[C@@H](O)[C@H](O)[C@@H]1O AEMOLEFTQBMNLQ-SYJWYVCOSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- DNGBZXWZIKPLIT-UHFFFAOYSA-L [Li+].[Li+].CC([O-])=O.CC([O-])=O Chemical compound [Li+].[Li+].CC([O-])=O.CC([O-])=O DNGBZXWZIKPLIT-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 150000004804 polysaccharides Chemical class 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
- H01G11/56—Solid electrolytes, e.g. gels; Additives therein
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses a kind of fire-retardant method for preparing gel polymer electrolyte of the all-solid-state supercapacitor based on lithium alginate, belong to ultracapacitor field.The electrolyte uses lithium alginate and lithium acetate for raw material, has prepared the gel polymer electrolyte of ultracapacitor.Gel polymer electrolyte flame-retarding characteristic with superelevation for traditional PVA gel polymer electrolytes, can be improved the safety of energy storage device when applied to ultracapacitor.Gel polymer electrolyte prepared by general polymer is difficult to have flame-retarding characteristic, can not solve the security risk (inflammable, explosive) of ultracapacitor in practical applications.Therefore, the gel polymer electrolyte with flame-retarding characteristic is prepared in the practical application of ultracapacitor to have great importance.In the present invention, lithium alginate abundance, gained gel polymer electrolyte shows excellent flame-retarding characteristic, is very promising gel polymer electrolyte material.
Description
Technical field
The invention belongs to ultracapacitor fields, and in particular to a kind of all-solid-state supercapacitor resistance based on lithium alginate
Fire method for preparing gel polymer electrolyte.
Background technology
Ultracapacitor is one of the important energy storage device for solving non-renewable energy resources, has power density high, uses the longevity
The advantages that life is long and margin of safety is good.With being continuously increased to electronic product demand, exploitation is light and with excellent reliable
Property and safety high-performance power supply be current research ultracapacitor main task.The electrolysis of assembling ultracapacitor at present
Matter mostly uses greatly liquid-phase system, such as strong alkali aqueous solution, the electrolysis for being often used as ultracapacitor of organic solution and ionic liquid
Matter.There are two defects for such ultracapacitor：1) most of liquid electrolyte has high toxicity and corrosivity, uses process
In need to avoid revealing, therefore encapsulation technology to device and material requirements are harsh；2) due to needing to pack, liquid electrolyte is difficult to
Small and expansible ultracapacitor device is manufactured, the two defects greatly limit the application of ultracapacitor.
As new class energy storage device, the above problem can be solved perfectly in solid-state super capacitor, cause in recent years quite big
Concern.Gel polymer electrolyte is widely used in because having higher ionic conductivity in solid-state super capacitor.Mesh
It is preceding to have polyacrylate (PAA), polyethylene oxide (PEO), polyvinyl alcohol (PVA), polypropylene using more polymer body
Nitrile (PAN), polymethyl methacrylate (PMMA).However, the common gel polymer electrolyte reported at present does not have resistance
Characteristic is fired, the security risk (inflammable, explosive) present in solid-state super capacitor can not be solved.
Lithium alginate is a kind of natural polysaccharide macro-molecular, the alpha-beta-Gu Luo connected by beta-D-mannuronic acid (M) and (1-4)
Uronic acid (G) unit forms, and has unique colloid property.Due to lithium alginate aqueous solution in water evaporation process hydrone
Between lithium alginate strand or alginic acid molecule interchain can form hydrogen bond, therefore have film forming.Importantly, seaweed
Hydrochlorate has inherent flame retardancy.- the COOH and-OH groups being rich in alginates structural unit easily occur de- in thermal decomposition process
Water decarboxylic reaction releases H2O and CO2.Therefore we are assembled using the fire-retardant gel polymer electrolyte of lithium alginate-lithium acetate
At ultracapacitor, the safety of energy storage device can be greatlyd improve.
Invention content
The present invention is using abundance and reproducible lithium alginate is as raw material, is prepared for can be used as ultracapacitor
Fire-retardant gel polymer electrolyte.
Preparation process of the present invention is simple, does not need expensive device, and products obtained therefrom high flame resistance is good, fire-retardant super in the future
There is bright foreground in the large-scale application of capacitor.
A kind of fire-retardant method for preparing gel polymer electrolyte of all-solid-state supercapacitor based on lithium alginate makes
Process includes the following steps：
1) configuration 20mL lithium acetate aqueous solutions (0.5M, 1M, 2M, 3M, 3.5M), addition 0.8g lithium alginates, stirring and dissolving,
Obtain lithium alginate-lithium acetate solution.
2) obtained solution is equably applied on smooth sheet glass, stands film forming；
3) lithium alginate-lithium acetate gel polymer electrolyte film is placed with air, removes moisture removal, uses alcolhol burner
Combustion testing is carried out to it；
4) it is electrode material to use activated carbon, and lithium alginate-lithium acetate gel polymer electrolyte film is solid electrolyte,
All-solid-state supercapacitor is assembled, chemical property is tested with electrochemical workstation.
The raw material that the present invention uses is mainly the lithium alginate extracted in brown alga, raw material sources extensively, it is environment-friendly and green, fire-retardant
Property it is high.
Fire-retardant gel polymer electrolyte prepared by the method for the present invention, can be used for assembling fire-retardant all-solid-state supercapacitor,
Improve the safety of energy storage device.
Fire-retardant gel polymer electrolyte prepared by the method for the present invention can be synthesized largely, not need expensive device, can be extensive
For in fire-retardant all-solid-state supercapacitor.
Description of the drawings
Fig. 1 is lithium alginate-lithium acetate gel polymer electrolyte film that specific embodiment 1 obtains.
Fig. 2 is the lithium alginate-lithium acetate gel polymer electrolyte film (a) (b) and tradition that specific embodiment 1 obtains
The combustion case of PVA gel polymer electrolyte films (c) (d) compares, hence it is evident that sees lithium alginate-lithium acetate gelatin polymer electricity
It is difficult to light to solve plasma membrane, has excellent anti-flammability.
It is all solid state super that Fig. 3 is that lithium alginate-lithium acetate gel polymer electrolyte that specific embodiment 1 obtains is assembled into
Constant current charge-discharge curve of the capacitor under different current densities.
It is all solid state super that Fig. 4 is that lithium alginate-lithium acetate gel polymer electrolyte that specific embodiment 1 obtains is assembled into
Capacitor is 10mAcm in current density-2Under cyclical stability (voltage window 0.8V).
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of without creative work, shall fall within the protection scope of the present invention.
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
1) lithium acetate aqueous solution of a concentration of 0.5M of configuration 20mL, is added 0.8g lithium alginates, and stirring and dissolving obtains seaweed
Sour lithium-lithium acetate homogeneous solution.
2) obtained solution is equably applied on smooth sheet glass, stands film forming；
3) lithium alginate-lithium acetate gel polymer electrolyte film is placed with air, removes moisture removal, uses alcolhol burner
Combustion testing is carried out to it；
4) it is electrode material to use activated carbon, and lithium alginate-lithium acetate gel polymer electrolyte film is solid electrolyte,
All-solid-state supercapacitor is assembled, chemical property is tested with electrochemical workstation.
Embodiment 2
The concentration of lithium acetate is changed to 1M, other processing are the same as embodiment 1.
Embodiment 3
The concentration of lithium acetate is changed to 2M, other processing are the same as embodiment 1.
Embodiment 4
The concentration of lithium acetate is changed to 3M, other processing are the same as embodiment 1.
Embodiment 5
The concentration of lithium acetate is changed to 3.5M, other processing are the same as embodiment 1.
It should be understood that although with reference to its illustrative embodiment, particularly shown and description is carried out to the present invention,
It should be understood by those skilled in the art that without departing substantially from the spirit and model by the present invention as defined in the claims
Under conditions of enclosing, the variation of various forms and details can be carried out wherein, can carry out the arbitrary combination of various embodiments.
Claims (5)
1. a kind of fire-retardant method for preparing gel polymer electrolyte of all-solid-state supercapacitor based on lithium alginate, feature
It is the described method comprises the following steps：
1) a certain amount of lithium alginate is added in the aqueous solution of lithium acetate, it is uniformly molten that lithium alginate-lithium acetate is obtained after stirring
Liquid.
2) obtained solution is equably applied on smooth sheet glass, stands film forming；
3) combustion testing is carried out to lithium alginate-lithium acetate gel polymer electrolyte film；
4) chemical property of all-solid-state supercapacitor is tested with electrochemical workstation.
2. preparation method according to claim 1, which is characterized in that lithium alginate concentration of aqueous solution described in step 1)
Concentration for mass fraction 4%, lithium acetate is respectively 0.5M, 1M, 2M, 3M, 3.5M.
3. preparation method according to claim 1, which is characterized in that standing process is steamed along with moisture in step 2)
Hair, between hydrone and lithium alginate strand or alginic acid molecule interchain can form hydrogen bond, make lithium alginate-lithium acetate gel
Polymer dielectric forms a film.
4. preparation method according to claim 1, which is characterized in that lithium alginate-lithium acetate described in step 3) is solidifying
Xanthan polymer dielectric film is positioned in air, removes moisture, and combustion testing is carried out using alcolhol burner.
5. preparation method according to claim 1, which is characterized in that it is electrode material to use activated carbon described in step 4)
Material, sodium alginate-lithium acetate gel polymer electrolyte film are solid electrolyte, assemble all-solid-state supercapacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044277.2A CN108364803A (en) | 2018-01-10 | 2018-01-10 | A kind of fire-retardant method for preparing gel polymer electrolyte of all-solid-state supercapacitor based on lithium alginate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044277.2A CN108364803A (en) | 2018-01-10 | 2018-01-10 | A kind of fire-retardant method for preparing gel polymer electrolyte of all-solid-state supercapacitor based on lithium alginate |
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| Publication Number | Publication Date |
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| CN108364803A true CN108364803A (en) | 2018-08-03 |
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| CN201810044277.2A Pending CN108364803A (en) | 2018-01-10 | 2018-01-10 | A kind of fire-retardant method for preparing gel polymer electrolyte of all-solid-state supercapacitor based on lithium alginate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216523A (en) * | 2020-09-02 | 2021-01-12 | 青岛大学 | Preparation method of flame-retardant polymer gel electrolyte with ultrahigh specific capacitance |
| CN113851710A (en) * | 2021-11-02 | 2021-12-28 | 浙江钠创新能源有限公司 | Sodium ion bifunctional gel polymer electrolyte, and preparation method and application thereof |
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|---|---|---|---|---|
| JP2013058365A (en) * | 2011-09-07 | 2013-03-28 | Kansai Univ | Nonaqueous gel electrolyte, method for producing the same, and use of the same |
| CN104952634A (en) * | 2015-06-05 | 2015-09-30 | 北京大学 | Ionic liquid-lithium salt gel polymer electrolyte and preparation and application thereof |
| CN107104000A (en) * | 2017-05-11 | 2017-08-29 | 华中科技大学 | A kind of method for preparing full marine alga solid-state super capacitor and products thereof |
| CN107501635A (en) * | 2017-08-07 | 2017-12-22 | 国家海洋局第三海洋研究所 | A kind of preparation method of graphene/sodium alginate composite |
-
2018
- 2018-01-10 CN CN201810044277.2A patent/CN108364803A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013058365A (en) * | 2011-09-07 | 2013-03-28 | Kansai Univ | Nonaqueous gel electrolyte, method for producing the same, and use of the same |
| CN104952634A (en) * | 2015-06-05 | 2015-09-30 | 北京大学 | Ionic liquid-lithium salt gel polymer electrolyte and preparation and application thereof |
| CN107104000A (en) * | 2017-05-11 | 2017-08-29 | 华中科技大学 | A kind of method for preparing full marine alga solid-state super capacitor and products thereof |
| CN107501635A (en) * | 2017-08-07 | 2017-12-22 | 国家海洋局第三海洋研究所 | A kind of preparation method of graphene/sodium alginate composite |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216523A (en) * | 2020-09-02 | 2021-01-12 | 青岛大学 | Preparation method of flame-retardant polymer gel electrolyte with ultrahigh specific capacitance |
| CN113851710A (en) * | 2021-11-02 | 2021-12-28 | 浙江钠创新能源有限公司 | Sodium ion bifunctional gel polymer electrolyte, and preparation method and application thereof |
| CN113851710B (en) * | 2021-11-02 | 2023-09-15 | 浙江钠创新能源有限公司 | Sodium ion difunctional gel polymer electrolyte, preparation method and application thereof |
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Application publication date: 20180803 |