CN110011001A - A kind of water system air cell and preparation method thereof based on organic carbonyl polymerization object cathode - Google Patents
A kind of water system air cell and preparation method thereof based on organic carbonyl polymerization object cathode Download PDFInfo
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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
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
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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
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
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Abstract
A kind of water system air cell and preparation method thereof based on organic carbonyl polymerization object cathode.Wherein cathode mainly includes organic carbonyl polymerization object, instead of the metal negative electrode of water system air cell routine.Anode is the bifunctional catalyst with hydrogen reduction, oxygen separating out.Electrolyte is alkaline aqueous solution, and diaphragm includes glass fabric and various filtering filter paper.Organic carbonyl polymerization object cathode is cheap, environmentally protective, has a safety feature, and structure can design and have good redox reversible in alkaline electrolyte.The air cell of assembling, which can be realized long circulating performance, high rate capability, and energy density, can reach 160 watt-hour per kilograms (based on positive and negative anodes all material).Polymer water system air cell provided by the invention realizes a kind of water system air cell without metal electrode of macrocyclic high reversible, improves the cycle performance of water system air cell, provides feasible solution for wide scale security energy storage.
Description
Technical field
Novel water system air cell the present invention relates to one kind based on organic carbonyl polymerization object cathode, including organic carbonyl are poly-
Object cathode, catalyst anode are closed, alkaline aqueous solution electrolyte belongs to mechanism of new electrochemical power sources field.
Background technique
Compared with the battery system based on organic electrolyte, water system battery since the aqueous solution using salt is as electrolyte,
Thus there is higher security performance, more cheap cost is also more environmentally-friendly, it is considered to be suitable for extensive cheap energy storage
Battery system.Wherein for Water based metal air cell using oxygen inexhaustible in air as active material, theoretical energy density is high, causes
The extensive concern of people.However, dendrite, passivation and corrosion cause metal negative in metal negative electrode (aluminium, magnesium, iron, zinc etc.) side
Pole utilization rate is low, and circulating battery stability is poor, can not depth charge and discharge.Therefore, the longer water system air of long circulation life is constructed
Battery needs to screen the novel anode material that can replace metal negative electrode that redox reversible is good, charging and discharging capabilities are strong.Have
Machine carbonyl polymerization object has many advantages, such as that capacity is high, resourceful, at low cost, structure can design, and is widely used as lithium, sodium ion electricity
The positive electrode in pond.Its electrochemical redox reaction is based on converting between carbonyl and enol group, has high invertibity.And
These materials have relatively suitable voltage range, become the suitable substitution of metal negative electrode in alkaline aqueous air cell
Product.Nishide seminar in 2011 for active material, has tentatively attempted a kind of polymer-air with poly- (2- vinyl anthraquinone)
Battery, but its active material load capacity is extremely low, and battery assembly is cumbersome, is unable to reach application request (Choi W.；
Harada D.；Oyaizu K.；Nishide H.Aqueous Electrochemistry of Poly
(vinylanthraquinone)for Anode-Active Materials in High-Density and
Rechargeable Polymer/Air Batteries.J.Am.Chem.Soc.2016,133,19839-19843)。
Summary of the invention
The object of the present invention is to by using organic carbonyl polymerization object material instead of metallic cathode, provide it is a kind of be based on it is organic
The novel water system air cell of carbonyl polymerization object cathode, by the rational design to organic carbonyl polymerization object cathode, to ensure it
It is matched with the dynamics of air cathode；The present invention greatly enriches the selectivity of water system cathode of air battery, solves simultaneously
Water system air cell cycle life is short, and cathode utilization rate is low, can not depth charge and discharge the problem of.Organic carbonyl polymerization object, which has, to be held
Amount is high, resourceful, at low cost, structure can design, voltage adjustable feature, is with a wide range of applications.
The technical scheme is that
A kind of novel water system air cell based on organic carbonyl polymerization object cathode, including anode, cathode, diaphragm and electrolysis
Liquid.The cathode is organic carbonyl polymerization object；The catalyst just extremely with porous structure；The electrolyte is
Alkaline aqueous solution；The diaphragm is ordinary filter paper or glass fiber filter paper.
Organic carbonyl quasi polymer, including quinones high molecular polymer, amides high molecular polymer, instead of
Conventional metal negative electrode.
The anode catalyst is cheap metal bifunctional catalyst；Collector is carbon paper, nickel foam or carbon cloth.
The diaphragm is glass fiber filter paper or common filtering class filter paper class diaphragm.
The alkaline aqueous solution is the aqueous solution of caustic alkali.Caustic alkali includes the one or two of LiOH, NaOH, KOH
The mixture of any of the above ratio, the concentration of caustic alkali in aqueous solution are 1.0-10.0mol/L.
Invention also provides a kind of preparation sides of novel water system air cell based on organic carbonyl polymerization object cathode
Method, preparation, the preparation of catalyst air cathode and the assembling of battery including organic carbonyl polymerization object cathode, specific steps are such as
Under:
1st, the preparation of organic carbonyl polymerization object cathode:
1.1st, mixed with conductive agent (conductive carbon material) and binder in proportion using organic carbonyl polymerization object as active material
It closes, using water or ethyl alcohol as dispersing agent, is tuned into slurry or slurries；
1.2nd, obtained slurries or slurry are uniformly smeared or are rolled on a current collector, drying obtains negative electrode material；
Wherein, the conductive carbon material is acetylene black, Super P, VulcanXC-72, KS6, graphene, carbon nanotube
At least one of or it is several mixed, shared ratio is 20wt% to 50wt% in electrode slice negative electrode material；
The binder is polytetrafluoroethylene (PTFE) (PTFE) or perfluorinated sulfonic acid-teflon-copolymers (Nafion), and binder is in electricity
Proportion is mass fraction 5wt% to 10wt% in pole piece negative electrode material, remaining is organic carbonyl polymerization object；The afflux
Body includes titanium foil, stainless (steel) wire, collector made of nickel foam or carbon material；The drying temperature is 60 to 100 DEG C.
2nd, the preparation of catalyst air cathode:
2.1st, using difunctional cheap metal catalyst as active material, in proportion with conductive agent (conductive carbon material) and viscous
Agent mixing is tied, using water or ethyl alcohol as dispersing agent, is tuned into slurry or slurries；
2.2nd, the slurries that the 2.1st step obtains are uniformly sprayed or is rolled on a current collector, drying, obtain catalyst sky
Gas positive electrode；
The conductive carbon material and binder is identical as in step 1, and the collector includes nickel foam or carbon material
Manufactured collector；Drying temperature is 40 to 80 DEG C；Wherein conductive carbon material ratio shared in electrode slice positive electrode is
30wt% to 70wt%, binder proportion are mass fraction 5wt% to 10wt%, remaining is double attack can catalyst.
3rd, the assembling of battery；
Composition and assemble method including button cell and flexible-packed battery；
3.1st, the composition and assembling of button cell；
The button cell is by negative electrode casing, elastic slice, gasket, negative electrode tab, diaphragm, electrolyte, positive plate, anode cover structure with holes
At；Assemble method is as follows:
1) elastic slice, gasket, negative electrode tab, diaphragm, electrolyte, positive plate are sequentially placed into negative electrode casing, are then installed porous
Anode cover, finally with sealing machine with 5-10MPa pressure compaction；
2) size of button cell is diameter 20mm, thickness 3.2mm, and the diameter of porous anode shell is 20mm, porous anode shell
It is 1 hole of 2mm that, which there is diameter in center,.
3.2nd, the composition and assembling of flexible-packed battery；
The flexible-packed battery is made of negative electrode tab, diaphragm, electrolyte, positive plate, unilateral aluminum plastic film outer packing with holes；
Assemble method is as follows:
1) according to negative electrode tab, electrolyte, diaphragm, electrolyte, the sequence assembled battery of positive plate；
2) by the unilateral aluminum plastic film outer packing with holes of assembled battery merging, anode is placed in side with holes, and encapsulates
Sealing.
Wherein, the preparation of organic carbonyl polymerization object cathode includes that organic carbonyl polymerization object and carbon material carry out in situ bear
It carries, optimizes the step of obtaining composite material；The i.e. described anode material is that organic carbonyl polymerization object monomer and carbon material are in situ
The macromolecule polymer material of polymerization, preparation method are as follows:
1) organic carbonyl polymerization object monomer is dispersed in reaction dissolvent；
2) by carbon nanotube ultrasonic disperse in reaction dissolvent；
3) both the above solution is mixed, polymerization initiator and catalyst is added, heated under inert gas shielding in situ poly-
It closes；
4) subsequent processing and it is dried to obtain composite material；
5) carbon material proportion in negative electrode material is mass fraction 20%-50%.
The advantages of the present invention:
Novel water system air cell provided by the invention based on organic carbonyl polymerization object cathode, with organic carbonyl polymerization object
Instead of traditional metal negative electrode.The chief active center of carbonyl electrode material is carbonyl group, passes through carbonyl and enol group
It mutually converts, high reversible simultaneously shows corresponding height ratio capacity.The present invention replaces traditional water system empty by organic carbonyl polymerization object
The metal negative electrode in pneumoelectric pond greatly extends the selectivity of water system air cell electrode material, improves water system air cell
Cycle performance and depth charge-discharge performance.By selecting suitable electrode material, so that battery shows long cycle performance,
Capacity retention ratio is more than 98% and good high rate performance after 200 circle of circulation.It is expected to follow as next-generation height ratio capacity, length
Ring, environmentally protective, sustainable development extensive energy-storage battery.
Detailed description of the invention
Fig. 1 is the water system air cell schematic diagram based on organic carbonyl polymerization object cathode.
Fig. 2 is the typical quinones polymer that the present invention includes.
Fig. 3 is the Typical amides quasi polymer that the present invention includes.
Fig. 4 is the nuclear magnetic spectrum of polymer 2-2 in embodiment 1.
Fig. 5 is the scanning electron microscope (SEM) photograph of polymer 2-2 material in embodiment 1.
Fig. 6 is the charging and discharging curve for the water system air cell that polymer 2-2 is assembled in embodiment 1.
Fig. 7 is the cycle performance figure for the water system air cell that polymer 2-2 is assembled in embodiment 1.
Fig. 8 is the charging and discharging curve for the water system air cell that polymer 2-2 is assembled in embodiment 2.
Fig. 9 is the charging and discharging curve for the water system air cell that polymer 2-2 is assembled in embodiment 3.
Figure 10 is the charging and discharging curve for the water system air cell that polymer 2-4 is assembled in embodiment 4.
Figure 11 is the charging and discharging curve for the water system air cell that polymer 2-2 is assembled in embodiment 5
Figure 12 is the scanning electron microscope (SEM) photograph of the composite material of polymer 2-2 and carbon nanotube in-situ polymerization in embodiment 6.
Figure 13 is the cycle performance figure for the water system air cell that composite material cathode assembles in embodiment 7.
Figure 14 is that the multiplying power for the water system air cell that composite material cathode assembles in embodiment 7 can be schemed.
Figure 15 is the photo in kind of the soft-package battery assembled in embodiment 8.
Figure 16 is the charging and discharging curve of the soft-package battery assembled in embodiment 8.
Specific embodiment
Below with reference to specific preferred embodiment, present invention is further described in detail and explanation, but implementation of the invention
Mode is without being limited thereto.Fig. 1 gives the schematic diagram of novel water system air cell of the invention.Fig. 2 gives the present invention
The structural formula of typical quinones polymer.Fig. 3 gives the Typical amides quasi polymer that the present invention includes.
Here it should be noted that test method without specific conditions in embodiment, usually according to normal condition and
Condition described in handbook, or according to the normal condition proposed by manufacturer；The preparation common apparatus used with detection, material, examination
Agent etc., is commercially available unless otherwise specified.
Embodiment 1: the preparation of poly- 1-4 anthraquinone cathode and catalyst anode and the assembling of water system air cell.
Polymer 2-2 (poly- 1-4 anthraquinone, P14AQ) can be synthesized (Song Z. by synthetic method reported in the literature；
Qian Y.；Gordin M.L.；Tang D；Xu T.；Otani M.；Zhan H.；Zhou H.；；Wang
D.Polyanthraquinone as a Reliable Organic Electrode for Stable and Fast
Lithium Storage.Angew.Chem.Int.Ed.2015,127,14153-14157).Fig. 4 is the nuclear magnetic spectrum of P14AQ.
Fig. 5 is the scanning electron microscope (SEM) photograph of P14AQ in the present embodiment.P14AQ and Super P conductive carbon and PTFE binder are according to 6:3:1
Ratio mixed, a little ethyl alcohol is added and repeatedly extrudes agglomerating, then rolls flakiness, rolls on stainless (steel) wire, later will
Sample is placed in vacuum drying oven 60 DEG C of drying overnight to get the negative electrode tab used to assembled battery.
By CoMn2O4Catalyst and carbon nanotube are ground uniformly according to the ratio of 3:7, and 10% Nafion aqueous solution is added
And ethanol in proper amount, it takes appropriate drop coating in carbon fiber paper surface after ultrasonic disperse is uniform, sample is placed on 50 in vacuum drying oven later
DEG C drying 2h.
It is tested first using button cell assembling water system air cell.Packaging technology is as follows, places cathode first
Shell is adding elastic slice and gasket above, and the negative electrode tab that diameter is 12mm is placed in the middle of gasket, is plus diameter later
The glass fiber filter paper of 16mm, is added dropwise the electrolyte of 100ul on filter paper, and the group of electrolyte becomes 6.0M KOH aqueous solution, connects
Positive plate (diameter 12mm) be placed on filter paper, in addition anode cover with holes, is sealed with battery sealing machine.It is assembled
Battery static 6 hours at room temperature, carry out electrochemical property test.
Fig. 6 is the charging and discharging curve for the water system air cell that P14AQ is assembled in the present embodiment.It can be seen that this battery
Specific discharge capacity be based on P14AQ cathode be 210 every gram of milliampere hour, operating voltage is in 0.65V or so.
Fig. 7 is the cycle performance figure of the present embodiment water system air cell.When doing cathode as seen from the figure with P14AQ, battery is followed
The capacity that ring 100 encloses remains 170 every gram of milliampere hour.
Embodiment 2: the 6.0M KOH electrolyte in embodiment 1 is changed into 1M KOH electrolyte.Still polymer 2-2 is used
As electrode material, using the painting blade technolgy and battery assembly technique in embodiment 1.
Fig. 8 is the charging and discharging curve for the water system air cell that P14AQ is assembled in the present embodiment.It can be seen that this battery
Specific discharge capacity be based on P14AQ cathode be 231 every gram of milliampere hour, operating voltage is in 0.67V or so.
Embodiment 3: the 6.0M KOH electrolyte in embodiment 1 is changed into 10M KOH electrolyte.Still polymer 2- is used
2 are used as electrode material, using the painting blade technolgy and battery assembly technique in embodiment 1.
Fig. 9 is the charging and discharging curve for the water system air cell that P14AQ is assembled in the present embodiment.It can be seen that this battery
Specific discharge capacity be based on P14AQ cathode be 203 every gram of milliampere hour, operating voltage is in 0.6V or so.
Embodiment 4: the assembling based on polysulfide anthraquinone cathode water system air cell.
Polymer 2-4 (polysulfide anthraquinone, PAQS) can be synthesized (Song Z. by synthetic method reported in the literature；
Qian Y.；Gordin M.L.；Tang D；Xu T.；Otani M.；Zhan H.；Zhou H.；；Wang
D.Polyanthraquinone as a Reliable Organic Electrode for Stable and Fast
Lithium Storage.Angew.Chem.Int.Ed.2015,127,14153-14157).P14AQ in embodiment 1 is born
Pole changes polymer 2-4 into as electrode material, on the whole using the painting blade technolgy and battery assembly technique in embodiment 1.With reality
It applies unlike example 1, the ratio of PAQS and Super P conductive carbon and PTFE binder is 7:2:1, and electrode slice drying temperature is
80℃。CoMn2O4The ratio of catalyst and carbon nanotube is 5:5, and drying temperature is 70 DEG C.Electrolyte is electrolysed using 6.0M NaOH
Liquid.
Figure 10 is the charging and discharging curve for the water system air cell that PAQS is assembled in the present embodiment.It can be seen that this battery
Specific discharge capacity be based on PAQS cathode be 150 every gram of milliampere hour, operating voltage is in 0.55V or so.
Embodiment 5: influence of the different carbon materials to water system air cell performance is inquired into.Still compound 2-2 conduct is used
Electrode material, on the whole using the painting blade technolgy and battery assembly technique in embodiment 1.It is different, in smear process
It is middle to replace Super P with carbon nanotube.
Figure 11 is the charging and discharging curve of the water system air cell assembled in the present embodiment.It can be seen that this battery is put
It is 254 every gram of milliampere hour that electric specific capacity, which is based on P14AQ cathode, and operating voltage is in 0.72V or so
Embodiment 6: poly- 1-4 anthraquinone/carbon nano tube compound material (P14AQ/CNT) synthesis and electrode system of in-situ polymerization
It is standby.
P14AQ/CNT can be synthesized (Tang D. by adjusting the synthetic method of document；Zhang W.；Qiao Z.-
A.；Liu Y.；Wang D.Polyanthraquinone/CNT nanocomposites as cathodes for
rechargeable lithium ionbatteries.Mater.Let.2015,214,107-110).Wherein monomer solution and
The ultrasonic disperse time of carbon nano-tube solution is 2 hours, and polymerization reaction heating time is 72 hours.The content of carbon nanotube is matter
Measure score 30%.
Figure 12 is the scanning electron microscope (SEM) photograph of P14AQ/CNT composite material in the present embodiment.
P14AQ/CNT electrode production process is similar to Example 1 in the present embodiment, P14AQ/CNT and binder PTFE's
Mass ratio is 9:1, does not need that other conductive carbons are additionally added.
Embodiment 7: with P14AQ/CNT combination electrode material according to the scheme assembled battery of embodiment 1.
Figure 13 is the cycle performance figure for the water system air cell that composite material assembles in the present embodiment.It is in situ poly- as seen from the figure
When the P14AQ/CNT composite material of conjunction does cathode, circulating battery 200 encloses capacity and remains 245 every gram of milliampere hour, capacity retention ratio
About 98%.
Figure 14 is the high rate performance figure for the water system air cell that composite material assembles in the present embodiment.Work as multiplying power as seen from the figure
When for 40C (individual pen cycle charge-discharge is 90s), battery capacity possesses 142 every gram of milliampere hour.
Embodiment 8: a possibility that in order to prove its large-scale application, P14AQ/CNT composite negative pole and CoMn are used2O4It urges
Agent anode has carried out the water system air cell soft-package battery assembling of large capacity.Anode is prepared using the method for embodiment 1 first
Piece and negative electrode tab.Battery assembly technique is carried out using the sequence of cathode, electrolyte, glass fiber filter paper diaphragm, electrolyte, anode
The assembling of battery.Assembled battery is put into single side plastic packaging bag with holes, anode is placed on side with holes, is then sealed
Dress, and then obtain Soft Roll water system air cell.
Figure 15 is the photo in kind of the water system air cell assembled in the present embodiment.
Figure 16 is the charging and discharging curve of the water system air cell assembled in the present embodiment.This battery can release as seen from the figure
The capacity of 1025 milliampere hour.
Novel water system air cell the present invention relates to one kind based on organic carbonyl polymerization object cathode.Used carbonyl is poly-
Closing object includes quinones, acylamide polymer.Related battery system and electrode material have from a wealth of sources, cheap, peace
Full the advantages that performance is good, energy density is high.Furthermore, it is possible to match with a variety of diaphragms and electrolyte, pass through optimization, assembling
Water system air cell cyclicity and high rate performance it is excellent, based on energy density on cathode be more than 170 watt-hour per kilograms.The present invention relates to
And organic carbonyl polymerization object negative electrode material relative to current water system air cell routine metal negative electrode is from a wealth of sources, resource can
Regeneration, redox reversible is high, has extensive industrial practical prospect.
The foregoing is merely section Examples of the invention, are not intended to limit the invention.In every case according to the content of present invention institute
The equivalent changes and modifications done, all for protection scope of the present invention within.
Claims (10)
1. a kind of water system air cell based on organic carbonyl polymerization object cathode, including anode, cathode, diaphragm and electrolyte；Its
Be characterized in that: the cathode is organic carbonyl polymerization object；The catalyst just extremely with porous structure；The electricity
Solution liquid is alkaline aqueous solution；The diaphragm is ordinary filter paper or glass fiber filter paper.
2. the water system air cell according to claim 1 based on organic carbonyl polymerization object cathode, it is characterised in that: described
Organic carbonyl polymerization object include quinones high molecular polymer and amides high molecular polymer.
3. the water system air cell according to claim 1 based on organic carbonyl polymerization object cathode, it is characterised in that: described
Anode catalyst is cheap metal bifunctional catalyst.
4. the water system air cell according to claim 1 based on organic carbonyl polymerization object cathode, it is characterised in that: described
Alkaline aqueous solution be the solution being made of lye and water；The caustic alkali includes one kind of LiOH, NaOH, KOH
Or the mixture of two or more arbitrary proportions；The concentration of caustic alkali in aqueous solution is 1.0-10.0mol/L.
5. a kind of preparation method of the water system air cell based on organic carbonyl polymerization object cathode, including organic carbonyl polymerization object are negative
Preparation, the preparation of catalyst air cathode and the assembling of battery of pole material, the specific steps are as follows:
1st, the preparation of organic carbonyl polymerization object cathode
1.1st, organic carbonyl polymerization object, conductive carbon material and binder are mixed in proportion, is uniformly mixed in dispersing agent
Form slurries or slurry；
1.2nd, obtained slurries or slurry are uniformly smeared or are rolled on a current collector, drying obtains negative electrode material；
2nd, the preparation step of catalyst air cathode is as follows:
2.1st, bifunctional catalyst, conductive carbon material and binder are mixed in proportion, is uniformly mixed in dispersing agent；
2.2nd, the slurries that the 2.1st step obtains are uniformly sprayed or are rolled on a current collector, drying is obtaining catalyst air just
Pole material；
3rd, the assembling of battery.
6. the preparation method of the water system air cell according to claim 5 based on organic carbonyl polymerization object cathode, special
Sign is: conductive carbon material described in step 1 and step 2 be acetylene black, Super P, VulcanXC-72, KS6, graphene,
At least one of carbon nanotube several is mixed；The binder is polytetrafluoroethylene (PTFE) (PTFE) or perfluor sulphur
Acid-teflon-copolymers (Nafion)；The dispersing agent is water or ethyl alcohol.
7. the preparation method of the water system air cell according to claim 5 based on organic carbonyl polymerization object cathode, special
Sign is: in the preparation of the organic carbonyl polymerization object cathode of step 1, the collector includes titanium foil, stainless (steel) wire, nickel foam or carbon
Collector made of material；The drying temperature is 60 to 100 DEG C；Conductive carbon material institute in electrode slice negative electrode material
The ratio accounted for is 20wt% to 50wt%, and binder proportion is mass fraction 5wt% to 10wt%, remaining is organic carbonyl
Based polyalcohol.
8. the preparation method of the water system air cell according to claim 5 based on organic carbonyl polymerization object cathode, special
Sign is: in the preparation of step 2 catalyst air cathode, the collector includes collector made of nickel foam or carbon material；
The drying temperature is 40 to 80 DEG C；Conductive carbon material ratio shared in electrode slice positive electrode arrives for 30wt%
70wt%, binder proportion are mass fraction 5wt% to 10wt%, remaining is bifunctional catalyst.
9. the preparation method of the water system air cell according to claim 5 based on organic carbonyl polymerization object cathode, special
Sign is that the assembling of battery described in step 3 includes the composition and assemble method of button cell and flexible-packed battery, specific as follows:
1st, the composition of button cell and assemble method
1.1st, the button cell is by negative electrode casing, elastic slice, gasket, negative electrode tab, diaphragm, electrolyte, positive plate, anode cover with holes
It constitutes；
1.2nd, elastic slice, gasket, negative electrode tab, diaphragm, electrolyte, positive plate are sequentially placed into negative electrode casing, are then installed porous
Anode cover, finally with sealing machine with 5-10MPa pressure compaction；
1.3rd, the size of button cell is diameter 20mm, thickness 3.2mm, and the diameter of porous anode shell is 20mm, porous anode shell
It is 1 hole of 2mm that, which there is diameter in center,；
2nd, the composition of flexible-packed battery and assemble method
2.1st, the flexible-packed battery is made of negative electrode tab, diaphragm, electrolyte, positive plate, unilateral apertured plastic films outer packing；
2.2nd, according to negative electrode tab, the sequence of electrolyte, diaphragm, electrolyte, positive plate is assembled；
2.3rd, by the unilateral aluminum plastic film outer packing with holes of assembled battery merging, anode is placed in side with holes, and encapsulates
Sealing.
10. the preparation method of the water system air cell according to claim 5 based on organic carbonyl polymerization object cathode, special
Sign is: the preparation of organic carbonyl polymerization object cathode described in step 1 includes that organic carbonyl polymerization object and carbon material carry out in situ bear
It carries, optimizes the step of obtaining composite material；The composite material is organic carbonyl polymerization object monomer and carbon material in-situ polymerization
Macromolecule polymer material, preparation method are as follows:
1) organic carbonyl polymerization object monomer is dispersed in reaction dissolvent；
2) by carbon material ultrasonic disperse in reaction dissolvent；
3) both the above solution is mixed, polymerization initiator and catalyst is added, heats in-situ polymerization under inert gas shielding；
4) subsequent processing and it is dried to obtain composite material；
5) carbon material proportion in negative electrode material is mass fraction 20%-50%.
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| CN110867587A (en) * | 2019-11-29 | 2020-03-06 | 常州大学 | Neutral water system mixed liquid flow battery with high power and long service life based on pyridylphenoxazine |
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