CN109921154A - A kind of flexible zinc-air battery based on polymer dielectric - Google Patents
A kind of flexible zinc-air battery based on polymer dielectric Download PDFInfo
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Abstract
The invention discloses a kind of flexible zinc-air battery based on polymer dielectric；The present invention uses polyvinyl alcohol or polyacrylic acid as the polymer backbone of semisolid electrolyte, make polymeric matrix that cavernous structure be presented as pore creating material using polyethylene glycol, nano silica introduces whole system as crosslinking agent, water-retaining agent and plasticizer, and prepared polymeric system is immersed in the potassium hydroxide aqueous solution of high concentration can be obtained porous nano silica composite polymer electrolyte after a certain period of time.The polymer dielectric has high ion conductivity, the features such as high-moisture-retention and excellent flexibility, prepared polymer dielectric is placed between zinc metal sheet electrode and catalyst coated carbon cloth electrode, the zinc-air battery being assembled into has longer cyclical stability, higher power and energy density and good flexibility, the practical application for flexible zinc-air battery provide theoretical basis and technical support.
Description
Technical field
The invention belongs to flexible energy device technical fields, and in particular to a kind of flexible zinc based on polymer dielectric is empty
The preparation method in pneumoelectric pond.
Background technique
It is flexible and can mobile electronic device due to its it is light, it can be achieved that it is ultra-thin, size is small, flexible, stretchable, can wear
It wears, is foldable, can distort, it is rollable, it can even weave etc. and to require and can satisfy some special demands, become current electricity
A development trend during son.In order to adapt to flexibility and can mobile electronic device development, it is necessary to development be provided
Energy flexibility and can portable energy memory device.Wherein, zinc-air battery is a kind of important metal-air battery, reason
It is 1086Wh kg by specific energy density-1, about 3-5 times higher than current lithium ion battery.Also, metallic zinc is at low cost, it is nontoxic,
It is nonflammable, there is good environment friendly, thus be a kind of energy storage device with development potential.Flexible zinc-air battery is logical
Often it is made of zinc anode, semisolid electrolyte, air cathode and encapsulating material.In these composition components, semisolid electrolyte
Play a part of ionic conduction and the performance of entire battery can be significantly affected, is one of its critical component.Mechanical stirring mixing
And manufactured conventional polyethylene alcohol radical base gel polymer dielectric has been widely used in flexible zinc-air battery.But
It is that ionic conductivity is lower, absorbency is poor, moisture retention is poor.
By the retrieval discovery to existing patent document, application No. is 201410171564.1 Chinese invention patents to disclose
A kind of quasi-solid electrolyte PVA- zinc-air battery, the electrolyte used is freezes shape solid PVA-KOH-H2O alkalinity is poly-
It closes object (PVA quasi-solid electrolyte).This solid-state electrolytic solution that the patent uses is to freeze the solid of shape and have certain toughness,
The growth that can hinder zinc dendrite, preventing from puncturing diaphragm because of the formation of zinc dendrite spine leads to internal short-circuit of battery, increases electricity
The service life in pond improves battery overall performance；Also, solid electrolyte obviously prevents the generation of battery leakage, improves
The overall performance of battery.However it is equally existed ionic conductivity is lower, absorbency is poor, moisture retention is poor defect.
Summary of the invention
It is an object of the invention in view of the deficiency of the prior art, provide it is a kind of based on high ion conductivity,
The preparation method of the flexible zinc-air battery of the polymer dielectric of high-liquid absorbing rate and humectant.Specifically designing one kind has
The porous nano silica composite polyvinyl alcohol or polypropylene acidic group gel of excellent ionic conductivity and electrolyte retention
Polymer dielectric makes it have better performance to be applied to flexible zinc-air battery.
To achieve the above object, polyvinyl alcohol or the polyacrylic acid that a kind of porous structure is provided in the present invention are poly- to improve
The absorbency of polymer electrolyte, by introducing nano silica to improve the moisture retention of polymer dielectric, by highly concentrated
It impregnates in the potassium hydroxide solution of degree to improve ionic conductivity.
Specifically, the invention provides the following technical scheme:
In a first aspect, the polymer dielectric is to soak polymeric system the present invention relates to a kind of polymer dielectric
Enter the porous nano silica composite polymer electrolyte being prepared in potassium hydroxide aqueous solution；The polymeric system with
The polymer backbone of polyvinyl alcohol or polyacrylic acid as semisolid electrolyte makes polymer matrix using polyethylene glycol as pore creating material
Cavernous structure is presented in body, and system is introduced using nano silica as crosslinking agent, water-retaining agent and plasticizer.
The polymer dielectric is flexible zinc-air battery electrolyte.
Preferably, the polyacrylic acid is obtained by being prepared by a method comprising the following steps: by N, N '-di-2-ethylhexylphosphine oxide
Acrylamide crosspolymer agent and acrylic monomers are mixed according to the mass ratio of 3~10:1；Be added thereto be pre-chilled in advance 20~
The potassium hydroxide solution and 0.1~0.3g mass fraction of 7~9M of 30mL is the potassium persulfate solution of 3~5wt.%；Sufficiently stir
It is injected in mold after mixing, after slurry is fully cured, demoulding, for use.
Preferably, the quality of the nano silica in the polymer dielectric is equivalent to polyvinyl alcohol or polyacrylic acid
1~9wt.% of quality；The polyvinyl alcohol of every 2.5~3.5g or the corresponding 25~35mL of polyacrylic acid in the polymer dielectric
Deionized water.
Preferably, the quality of the polyethylene glycol in the polymer dielectric is equivalent to polyvinyl alcohol or polyacrylic acid quality
35~45wt.%.
Preferably, the concentration of the potassium hydroxide aqueous solution is 6~7M；The polymeric system is with dry polymer
The form of dielectric film immerses in the potassium hydroxide aqueous solution 20~30 hours.
Preferably, the polymer dielectric film is obtained by being prepared by a method comprising the following steps:
S1, the nano grade silica particles are dissolved in deionized water, is stirred evenly；It is stirred continuously at 70~90 DEG C
Under conditions of, the polyvinyl alcohol or polyacrylic acid is added, until system becomes transparent and sticky；
S2, the polyethylene glycol of predissolve in acetone is added, continues to stir to get uniformly sticky mixture；
S3, the mixture is poured into square dies after cooling film forming, at 20~30 DEG C 20~30 in immersion acetone
Hour obtains dry polymer dielectric film.
Second aspect, it is described soft the present invention relates to a kind of flexible zinc-air battery based on the polymer dielectric
Property zinc-air battery interlayer sandwich structure, interlayer be the polymer dielectric, two sides are respectively zinc metal sheet cathode and load
There is the carbon cloth anode of cobaltosic oxide.
The third aspect, the present invention relates to the preparation methods of the flexible zinc-air battery described in one kind, and the method includes such as
Lower step:
A1, cobaltosic oxide slurry is coated on carbon cloth and is dried at normal temperature, obtained load has cobaltosic oxide
Carbon cloth anode；The cobaltosic oxide slurry be with cobaltosic oxide powder, carbon black, deionized water, isopropanol andEntirely
Fluororesin solution is formulated；
A2, flexible battery is assembled by the way of lamination, according to zinc metal sheet cathode, polymer dielectric, load there are four oxidations
The carbon cloth anode of three cobalts stacks, and reuses ventilative bandage encapsulation.
Preferably, in step A1, cobaltosic oxide powder, carbon black, deionized water, isopropanol andPerfluorinated resin
The amount ratio of solution is 8.5~9.5mg:20.5~21.5mg:2.3~2.5mL:0.55~0.65mL:0.25~0.35mL.
Preferably, in step A1, the load capacity that load has the carbon cloth anode of cobaltosic oxide is 0.25~0.35mg cm–2。
Preferably, the method also includes the preparations of zinc metal sheet cathode: will be with a thickness of the cutting of the metal zinc metal sheet of 0.2~0.5mm
It is 1~2cm at length, width is the rectangle of 2~3cm.
Metal zinc metal sheet sand paper sanding and polishing, washes clean and the drying for standby cut.
Preferably, in step A1, carbon cloth is before coating respectively with acetone, acetone and deionization washing in supersonic cleaning machine
30~40min is washed, is sufficiently dried for standby in thermostatic drying chamber later.
Compared with prior art, the beneficial effects of the present invention are:
1) flexible zinc-air battery of the invention is assembled into battery after cell components are realized flexibility, and preparing can wear
The flexible device worn, the practical application for flexible zinc-air battery provide theoretical basis and technical support.
2) porous nano silica composite polyvinyl alcohol or polypropylene used in flexible zinc-air battery of the invention
Acid-based polymer electrolyte, by manufacturing porous structure and suitable on polyvinyl alcohol or acrylic acid polymer matrix
Introduce nano silica additive, the ionic conductivity of electrolyte, the property such as liquid electrolyte absorptivity and electrolyte conservation rate
Energy aspect has certain raising.
3) show that excellent charge and discharge cycles are stablized with the zinc-air battery that prepared polymer dielectric is assembled
Property, constant-current discharge performance, high rate performance and power output and excellent flexibility, do not have any property under various bending conditions
It can reduce.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is a kind of flexible zinc-air battery structure and electrolyte schematic diagram based on polymer dielectric of the present invention；
Fig. 2 is a kind of cycle performance figure of the flexible zinc-air battery based on polymer dielectric of the present invention；
Fig. 3 is a kind of constant current discharge figure of the flexible zinc-air battery based on polymer dielectric of the present invention；
Wherein, 1 is zinc metal sheet electrode, and 2 be polymer dielectric, and 3, which are negative, is loaded with the carbon cloth electrode of cobaltosic oxide.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
Embodiment 1
The present embodiment is related to a kind of flexible zinc-air battery preparation method based on polymer dielectric, and its step are as follows:
(1) cobaltosic oxide/carbon cloth anode preparation: carbon cloth with acetone and is gone in supersonic cleaning machine respectively using preceding
30min is washed in ionized water, is sufficiently dried for standby in thermostatic drying chamber later.Cobaltosic oxide slurry is four oxygen with 9mg
Change three cobalt dusts and the carbon black of 21mg, the deionized water of 2.4mL is added thereto, 0.6mL isopropanol and 0.3mL's
Perfluorinated resin solution, in supersonic cleaning machine place 30min after take out it is spare.The cobaltosic oxide slurry liquid relief that will be prepared
Rifle is coated on carbon cloth dropwise and dries at normal temperature, and load capacity is 0.3mg cm–2。
(2) preparation of flexible polymer electrolyte: (it is equivalent to 5wt.%'s for a certain amount of firstly, being weighed with precision balance
Polyvinyl alcohol) nano grade silica particles, be dissolved in the deionized water of 30mL and in the condition added with magnetic agitation
Lower stirring 1h.Then, under conditions of being stirred continuously for 80 DEG C, 3g polyvinyl alcohol is slowly added into the molten of nano-silica-containing
In liquid, until they become transparent and sticky.Then the poly- second being first dissolved in proper amount of acetone in advance is added dropwise into the solution system
Glycol (1.286g), and 12h is continuously stirred at 80 DEG C, obtain uniformly sticky mixture.3mm depth is poured the mixture into later
Square dies in and at -10 DEG C then cooling 12h is immersed it in acetone for 24 hours with abundant at room temperature with being crosslinked
It dissolves pore former (polyethylene glycol) and obtains dry polymer film.Dry polymer film is finally immersed into the hydrogen that concentration is 6M
In potassium oxide solution for 24 hours, to obtain final porous nano composite polymer electrolyte membrane.
(3) flexible battery assembles: flexible zinc-air battery of the invention is the sandwich structure of interlayer, using the side of lamination
Formula assembles flexible battery.Firstly, by zinc metal sheet (10 × 20mm2, with a thickness of 0.3mm) and sand paper sanding and polishing is used, washes clean is simultaneously done
It is dry.Then take it is a piece of prepared porous nano silica composite polyvinyl alcohol base polymer electrolyte film (10 ×
20mm2) be placed between zinc metal sheet and the air electrode of identical size.Finally, encapsulated using ventilative bandage, since enhance laminar structure
Globality.Its decomposition texture schematic diagram is as shown in Figure 1, include zinc metal sheet electrode 1, polymer dielectric 2, loading has four oxidations three
The carbon cloth electrode 3 of cobalt.
The cycle performance figure of the prepared flexible zinc-air battery based on polymer dielectric is as shown in Fig. 2, show
Excellent charge and discharge cycles stability is 3mA cm in current density–3Under can work without interruption 40 hours.
The constant current discharge figure of the prepared flexible zinc-air battery based on polymer dielectric is as shown in figure 3, display
Excellent constant-current discharge performance out is 3mA cm in current density–3Under can be realized stable discharging 20 hours.
Embodiment 2
The present embodiment is related to a kind of flexible zinc-air battery preparation method based on polymer dielectric, and its step are as follows:
(1) cobaltosic oxide/carbon cloth anode preparation: carbon cloth with acetone and is gone in supersonic cleaning machine respectively using preceding
30min is washed in ionized water, is sufficiently dried for standby in thermostatic drying chamber later.Cobaltosic oxide slurry is four with 8.5mg
The deionized water of 2.3mL is added in the carbon black of Co 3 O powder and 20.5mg thereto, 0.55mL isopropanol and 0.25mL'sPerfluorinated resin solution, in supersonic cleaning machine place 40min after take out it is spare.The cobaltosic oxide prepared is starched
Material is coated on carbon cloth dropwise with liquid-transfering gun and is dried at normal temperature, and load capacity is 0.25mg cm-2。
(2) preparation of flexible polymer electrolyte: (it is equivalent to 1wt.%'s for a certain amount of firstly, being weighed with precision balance
Polyacrylic acid) nano grade silica particles, be dissolved in the deionized water of 25mL and in the condition added with magnetic agitation
Lower stirring 1.5h.Then, under conditions of being stirred continuously for 70 DEG C, 2.5g polyacrylic acid is slowly added into nano-silica-containing
Solution in, until they become transparent and sticky.Then it is added dropwise into the solution system and is first dissolved in proper amount of acetone in advance
Polyethylene glycol (0.875g), and 14h is continuously stirred at 70 DEG C, obtain uniformly sticky mixture.It pours the mixture into later
Cooling 12h to be to be crosslinked in the square dies of 2mm depth and at -10 DEG C, then it is immersed at room temperature in acetone 20h with
It sufficiently dissolves pore former (polyethylene glycol) and obtains dry polymer film.Dry polymer film, which is finally immersed concentration, is
30h in the potassium hydroxide solution of 6.5M, to obtain final porous nano composite polymer electrolyte membrane.
The preparation process of above-mentioned polyacrylic acid are as follows: by the N of 0.025g, N '-methylene-bisacrylamide crosslinking agent and 5g third
Acrylic monomer mixing.The potassium hydroxide solution and 0.2g mass fraction that the 25mL 8M being pre-chilled in advance is added thereto are 4wt.%
Potassium persulfate solution.It is injected in mold after being sufficiently stirred, after slurry is fully cured, demoulding, for use.
(3) flexible battery assembles: flexible zinc-air battery of the invention is the sandwich structure of interlayer, using the side of lamination
Formula assembles flexible battery.Firstly, by zinc metal sheet (20 × 30mm2, with a thickness of 0.5mm) and sand paper sanding and polishing is used, washes clean is simultaneously done
It is dry.Then take it is a piece of prepared porous nano silica composite polypropylene acid-based polymer dielectric film (20 ×
30mm2) be placed between zinc metal sheet and the air electrode of identical size.Finally, encapsulated using ventilative bandage, since enhance laminar structure
Globality.
It is 3mA that the charge and discharge cycles of the prepared flexible zinc-air battery based on polymer dielectric, which are in current density,
cm–3Under can be 3mA cm in current density with works thirty-five hours–3Under can discharge 18 hours.
Embodiment 3
The present embodiment is related to a kind of flexible zinc-air battery preparation method based on polymer dielectric, and its step are as follows:
(1) cobaltosic oxide/carbon cloth anode preparation: carbon cloth with acetone and is gone in supersonic cleaning machine respectively using preceding
30min is washed in ionized water, is sufficiently dried for standby in thermostatic drying chamber later.Cobaltosic oxide slurry is four with 9.5mg
The deionized water of 2.5mL is added in the carbon black of Co 3 O powder and 21.5mg thereto, 0.65mL isopropanol and 0.35mL'sPerfluorinated resin solution, in supersonic cleaning machine place 35min after take out it is spare.The cobaltosic oxide prepared is starched
Material is coated on carbon cloth dropwise with liquid-transfering gun and is dried at normal temperature, and load capacity is 0.35mg cm-2。
(2) preparation of flexible polymer electrolyte: (it is equivalent to 9wt.%'s for a certain amount of firstly, being weighed with precision balance
Polyvinyl alcohol) nano grade silica particles, be dissolved in the deionized water of 35mL and in the condition added with magnetic agitation
Lower stirring 2h.Then, under conditions of being stirred continuously for 90 DEG C, 3.5g polyvinyl alcohol is slowly added into nano-silica-containing
In solution, until they become transparent and sticky.Then it is added dropwise into the solution system and is first dissolved in gathering in proper amount of acetone in advance
Ethylene glycol (1.575g), and 12h is continuously stirred at 90 DEG C, obtain uniformly sticky mixture.3mm is poured the mixture into later
Cooling 12h to be to be crosslinked in deep square dies and at -10 DEG C, then it is immersed in acetone 30h at room temperature to fill
Divide dissolution pore former (polyethylene glycol) and obtains dry polymer film.It is 7M's that dry polymer film, which is finally immersed concentration,
20h in potassium hydroxide solution, to obtain final porous nano composite polymer electrolyte membrane.
(3) flexible battery assembles: flexible zinc-air battery of the invention is the sandwich structure of interlayer, using the side of lamination
Formula assembles flexible battery.Firstly, by zinc metal sheet (15 × 25mm2, with a thickness of 0.2mm) and sand paper sanding and polishing is used, washes clean is simultaneously done
It is dry.Then take it is a piece of prepared porous nano silica composite polyvinyl alcohol base polymer electrolyte film (15 ×
25mm2) be placed between zinc metal sheet and the air electrode of identical size.Finally, encapsulated using ventilative bandage, since enhance laminar structure
Globality.
It is 3mA that the charge and discharge cycles of the prepared flexible zinc-air battery based on polymer dielectric, which are in current density,
cm–3Under can work 30 hours, current density be 3mA cm–3Under can discharge 15 hours.
Comparative example 1
This comparative example is related to a kind of flexible zinc-air battery preparation method based on polymer dielectric, and step is substantially same
Embodiment 1, the difference is that be not added with nano silica in the preparation of flexible polymer electrolyte, it is specific as follows:
(1) cobaltosic oxide/carbon cloth anode preparation: carbon cloth with acetone and is gone in supersonic cleaning machine respectively using preceding
30min is washed in ionized water, is sufficiently dried for standby in thermostatic drying chamber later.Cobaltosic oxide slurry is four oxygen with 9mg
Change three cobalt dusts and the carbon black of 21mg, the deionized water of 2.4mL is added thereto, 0.5mL isopropanol and 0.3mL's
Perfluorinated resin solution, in supersonic cleaning machine place 30min after take out it is spare.The cobaltosic oxide slurry liquid relief that will be prepared
Rifle is coated on carbon cloth dropwise and dries at normal temperature, and load capacity is 0.3mg cm–2。
(2) preparation of flexible polymer electrolyte: firstly, under conditions of being stirred continuously for 80 DEG C, 3g polyvinyl alcohol is delayed
Slowly it is added in the deionized water of 30mL, until they become transparent and sticky.Then it is added dropwise into the solution system molten in advance
Polyethylene glycol (1.286g) of the solution in proper amount of acetone, and 12h is continuously stirred at 80 DEG C, obtain uniformly sticky mixture.
It is poured the mixture into the square dies of 3mm depth later and cooling 12h is at -10 DEG C to be crosslinked, then by it in room temperature
Dry polymer film is obtained sufficiently to dissolve pore former (polyethylene glycol) for 24 hours in lower immersion acetone.Finally dry is gathered
Compound film immerses in the potassium hydroxide solution that concentration is 6M for 24 hours, to obtain final porous nano composite polymer electrolyte membrane.
(3) flexible battery assembles: flexible zinc-air battery of the invention is the sandwich structure of interlayer, using the side of lamination
Formula assembles flexible battery.Firstly, by zinc metal sheet (10 × 20mm2, with a thickness of 0.3mm) and sand paper sanding and polishing is used, washes clean is simultaneously done
It is dry.Then take it is a piece of prepared porous nano silica composite polyvinyl alcohol base polymer electrolyte film (10 ×
20mm2) be placed between zinc metal sheet and the air electrode of identical size.Finally, encapsulated using ventilative bandage, since enhance laminar structure
Globality.
The charge and discharge cycles of the flexible zinc-air battery of the prepared polymer dielectric added based on no silica
To be 3mA cm in current density–3Under can work 20 hours, current density be 3mA cm–3Under can discharge 12 hours.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (10)
1. a kind of polymer dielectric, which is characterized in that the polymer dielectric is that polymeric system is immersed potassium hydroxide
The porous nano silica composite polymer electrolyte being prepared in aqueous solution；The polymeric system with polyvinyl alcohol or
Polymer backbone of the polyacrylic acid as semisolid electrolyte presents polymeric matrix using polyethylene glycol as pore creating material poroid
Structure introduces system using nano silica as crosslinking agent, water-retaining agent and plasticizer.
2. polymer dielectric according to claim 1, which is characterized in that the polyacrylic acid is by including following step
What rapid method was prepared: by N, N '-methylene-bisacrylamide crosslinking agent and acrylic monomers according to 3~10:1 quality
Than mixing；Be added thereto 7~9M of 20~30mL of pre-cooling potassium hydroxide solution and 0.1~0.3g mass fraction be 3~
The potassium persulfate solution of 5wt.%；It is injected in mold after being sufficiently stirred, after slurry is fully cured, demoulding, for use.
3. polymer dielectric according to claim 1, which is characterized in that the nano-silica in the polymer dielectric
The quality of SiClx is equivalent to 1~9wt.% of polyvinyl alcohol or polyacrylic acid quality；Every 2.5 in the polymer dielectric~
Corresponding 25~35mL the deionized water of the polyvinyl alcohol or polyacrylic acid of 3.5g.
4. polymer dielectric according to claim 1, which is characterized in that the polyethylene glycol in the polymer dielectric
Quality be equivalent to 35~45wt.% of polyvinyl alcohol or polyacrylic acid quality.
5. polymer dielectric according to claim 1, which is characterized in that the concentration of the potassium hydroxide aqueous solution is 6
~7M；The polymeric system be immersed in the form of dry polymer dielectric film 20 in the potassium hydroxide aqueous solution~
30 hours.
6. polymer dielectric according to claim 5, which is characterized in that the polymer dielectric film is by including
What the method for following steps was prepared:
S1, the nano grade silica particles are dissolved in deionized water, is stirred evenly；In the item that 70~90 DEG C are stirred continuously
Under part, the polyvinyl alcohol or polyacrylic acid is added, until system becomes transparent and sticky；
S2, the polyethylene glycol of predissolve in acetone is added, continues to stir to get uniformly sticky mixture；
S3, the mixture is poured into square dies after cooling film forming, at 20~30 DEG C 20~30 hours in immersion acetone
Obtain dry polymer dielectric film.
7. a kind of flexible zinc-air battery based on polymer dielectric according to any one of claims 1 to 6, feature exist
In the sandwich structure of the flexibility zinc-air battery interlayer, interlayer is the polymer dielectric, and two sides are respectively that zinc metal sheet is negative
Pole and load have the carbon cloth anode of cobaltosic oxide.
8. a kind of preparation method of flexible zinc-air battery as claimed in claim 7, which is characterized in that the method includes such as
Lower step:
A1, cobaltosic oxide slurry is coated on carbon cloth and is dried at normal temperature, it is obtained to load the carbon cloth for having cobaltosic oxide
Anode；The cobaltosic oxide slurry be with cobaltosic oxide powder, carbon black, deionized water, isopropanol andPerfluor tree
Lipoprotein solution is formulated；
A2, flexible battery is assembled by the way of lamination, according to zinc metal sheet cathode, polymer dielectric, load has cobaltosic oxide
Carbon cloth anode stack, reuse the encapsulation of ventilative bandage.
9. the preparation method of flexibility zinc-air battery as claimed in claim 8, which is characterized in that in step A1, four oxidations three
Cobalt dust, carbon black, deionized water, isopropanol andThe amount ratio of perfluorinated resin solution be 8.5~9.5mg:20.5~
21.5mg:2.3~2.5mL:0.55~0.65mL:0.25~0.35mL.
10. the preparation method of flexibility zinc-air battery as claimed in claim 8, which is characterized in that in step A1, load has four
The load capacity of the carbon cloth anode of Co 3 O is 0.25~0.35mg cm–2。
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| CN111916761A (en) * | 2020-05-27 | 2020-11-10 | 天津大学 | Flexible stretchable zinc-air battery based on foam-based metal electrode and preparation |
| CN111916761B (en) * | 2020-05-27 | 2022-06-24 | 天津大学 | Flexible stretchable zinc-air battery based on foam-based metal electrode and preparation |
| CN114188510A (en) * | 2021-11-24 | 2022-03-15 | 山东合泰新能源有限公司 | Coating composition for coating on battery negative electrode, coating layer, and method and application for forming coating layer |
| WO2023108318A1 (en) * | 2021-12-13 | 2023-06-22 | 中国科学院深圳先进技术研究院 | Self-powered flexible pressure sensor |
| CN114665195A (en) * | 2022-03-16 | 2022-06-24 | 苏州大学 | Flexible air battery and preparation method thereof |
| CN115036518A (en) * | 2022-06-29 | 2022-09-09 | 河北工业大学 | Miniature all-solid-state zinc-air battery and preparation method thereof |
| CN115036518B (en) * | 2022-06-29 | 2023-11-03 | 河北工业大学 | Miniature all-solid-state zinc-air battery and preparation method thereof |
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| CN109921154B (en) | 2022-03-22 |
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