CN204243130U - Based on the positive plate of nickel/carbon nano-tube composite array - Google Patents
Based on the positive plate of nickel/carbon nano-tube composite array Download PDFInfo
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- CN204243130U CN204243130U CN201420664854.5U CN201420664854U CN204243130U CN 204243130 U CN204243130 U CN 204243130U CN 201420664854 U CN201420664854 U CN 201420664854U CN 204243130 U CN204243130 U CN 204243130U
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- carbon nano
- positive plate
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- sheet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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
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Abstract
The utility model discloses a kind of positive plate based on nickel/carbon nano-tube composite array, this positive plate is on conducting base after growing metal nanoporous sheet, vapour deposition carbon nano pipe array on sheet metal, additional conducting polymer is coated and obtain again, and wherein sulphur active material is carried in the hole of the face surface wall of sheet metal and carbon nano pipe array and sheet metal, carbon nano-tube.This conductivity is high, doubly forthright good anode composite can be used in secondary aluminium cell, for improving cycle performance and the energy density of battery.
Description
Technical field
The utility model is battery and new energy field, is specifically related to a kind of aluminum cell anode composite sheet.
Background technology
Regenerative resource is grid-connected, and the develop rapidly of the new energy technology such as electric automobile and intelligent grid is in the urgent need to developing the energy storage system of high-energy-density.The theoretical energy density of aluminium, up to 2980mAh/g, be only second to lithium (3682mAh/g), and chemical activity is relatively stable, is desirable negative material; Sulphur has the theoretical energy density of 1675mAh/g, is the positive electrode that known energy density is the highest, and the two aluminium-sulfur battery system formed is a kind of emerging high energy density cells system.But the shortcomings such as sulphur conductivity is low, cycle performance is poor seriously limit it and use.Therefore, elemental sulfur and electric conducting material are combined the electric conductivity and utilance that can improve material.
Metal has excellent electric conductivity, and elemental sulfur contacts with conducting metal, can improve the conversion ratio of sulphur, and orthotropic sheet metal array can provide better conductive channel for the transmission of electronics; The sulphur active material that self-sow carbon nano pipe array material can utilize the pore structure load of material with carbon element a large amount of on sheet metal simultaneously, reduce the dissolving of sulfide, confinement effect can be played after sheet metal and carbon nano tube surface coated with conductive polymer, suppress the dissolving of polysulfide further.
Summary of the invention
(1) utility model object
For the problems referred to above and deficiency, the purpose of this utility model is to provide a kind of positive plate based on nickel/carbon nano-tube composite array for aluminum cell, and wherein array structure is by the nickel sheet of vertical-growth in conductive substrates and the combined type configuration that the orientation multi-walled carbon nano-tubes of growth in situ forms in nickel sheet.Do not add conductive agent and binding agent in this anode composite sheet, energy density is high, doubly forthright good.
(2) technical scheme
For realizing above-mentioned utility model object, the utility model provides following technical scheme:
A kind of positive plate based on nickel/carbon nano-tube composite array, comprise conducting polymer, carbon nano-tube-Ni array, sulphur and conductive substrates, it is characterized in that, Ni sheet vertical-growth is in conductive substrates, multi-walled carbon nano-tubes growth in situ is in Ni nanometer sheet surface, in the outer wall that elemental sulfur is attached to Ni sheet and array of multi-walled carbon nanotubes and hole inwall, external sheath conducting polymer forms 3 D stereo layer structure.
The positive plate based on nickel/carbon nano-tube composite array described in scheme, is characterized in that, Ni sheet surface is containing Nano grade porous.
The positive plate based on nickel/carbon nano-tube composite array described in scheme, is characterized in that, not containing additional conductive agent and binding agent in anode composite sheet.
The positive plate based on nickel/carbon nano-tube composite array described in scheme, is characterized in that, conducting polymer is the one in polyaniline, polypyrrole, polythiophene, polyacetylene and their derivative.
Conductive substrates described in scheme is comprise the one in carbon fiber, graphite, vitrescence carbon, titanium, nickel, stainless steel, iron, copper, zinc, lead, manganese, cadmium, gold, silver, platinum, tantalum, tungsten, conductive plastics, conductive rubber or highly doped silicon.
(3) beneficial effect
The positive plate based on nickel/carbon nano-tube composite array that the utility model is used, compared with prior art there is following advantage: the array of nanostructure directly contacts with conductive substrates, make electronics can be quickly transferred to conducting base from reaction active site, and can not be such to pulverulent material, electronics shuttles back and forth arbitrarily between the particle of unordered accumulation; In metal nickel sheet, in-situ growing carbon nano tube can the more elemental sulfur of load, and sulphur is contacted with nano shape with electric conducting material, thus improves the conversion ratio of sulphur; Confinement effect can be played after metal nickel sheet and the coated conducting polymer of carbon nano tube surface, reduce the dissolving of the polysulfide produced in sulphur discharge process further, suppress the generation of " shuttling back and forth " effect.
(4) accompanying drawing explanation
Fig. 1 is the positive plate tangent plane schematic diagram based on nickel/carbon nano-tube composite array described in the utility model.
Wherein, 1-sulphur, 2-conducting polymer, 3-carbon nano pipe array, 4-sheet metal array, 5-conductive substrates.
(5) embodiment
Be described further below with reference to the technique effect of drawings and Examples to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.
See accompanying drawing 1, the utility model provides a kind of positive plate based on nickel/carbon nano-tube composite array, comprises sulphur 1, conducting polymer 2, carbon nano pipe array 3, sheet metal array 4 and conductive substrates 5.Sheet metal array 4 is grown in conductive substrates 5, carbon nano pipe array 3 is deposited on sheet metal array 4, sulphur 1 is carried in sheet metal array 4, the outer wall of carbon nano pipe array 3 and hole inwall, and last conducting polymer 2 is coated on sheet metal array 4 and carbon nano pipe array 3 outer wall.
Embodiment 1:
(1) preparation of composite array/sulphur composite material: the leaching of cleaned conductive base egative film (30 × 10 × 1mm) is placed in and is furnished with 1.24gC
4h
6ni0
44H
20,0.37gNH
4f and 1.5gCO (NH
2)
2be total in the autoclave of the 50ml aqueous solution.Autoclave, after sealing, is put in the electric heating constant-temperature blowing drying box of 130 DEG C and is reacted 5h, be cooled to room temperature, has the conductive base egative film of the persursor material of basic nickel carbonate nano-chip arrays to take out by long, repeatedly rinses for several times, drying for standby with distilled water; Have the persursor material of basic nickel carbonate nano-chip arrays to be positioned over the centre position of tube furnace quartz ampoule by long, in the porcelain boat of the mixed solution pouring 1mL ethanol and ethylene glycol in quartz ampoule, porcelain boat is placed in the upstream region of quartz ampoule; Quartz ampoule is sealed, passes into the argon gas of about 2min clock, under the protection of argon gas, by with the speed of 15K/min, tube furnace is warming up to 900K and sustained response 15min afterwards, stop heating, after cooling, sample is taken out to obtain nickel sheet/carbon nano-tube composite array; Then, by nickel sheet/carbon nano-tube composite array and elemental sulfur in mass ratio 1:8 put into polytetrafluoroethylene reactor and continue to pass into the air that nitrogen 30min discharges reactor; Under flowing argon gas atmosphere, array and elemental sulfur mixture are heated to about 250 DEG C, insulation 12h, in the hole making sulphur be diffused into array and wall surface, cool and obtain array/sulphur composite material.
(2) preparation of positive plate: adopt electrochemical process at this composite material in-stiu coating polyaniline, obtain the polyaniline/Ni sheet-multi-walled carbon nano-tubes composite array/sulphur positive plate of polyaniline-coated, obtained positive plate drying is cut into 40mm wide × the thick size of 15mm length × 0.33mm.
The preparation of battery: using above-mentioned positive plate and the thick barrier film of 0.16mm and be wound into battery core with aluminium flake as the negative pole that negative active core-shell material is made and load nickel plating box hat, reinject electrolyte, and secondary aluminium cell is made in sealing.
Embodiment 2:
(1) preparation of composite array/sulphur composite material is with embodiment 1.
(2) preparation of positive plate: adopt microemulsion method at this composite material surface in-stiu coating polypyrrole, obtain polypyrrole coated Ni sheet-multi-walled carbon nano-tubes composite array/sulphur positive plate, obtained positive plate drying is cut into 40mm wide × the thick size of 15mm length × 0.33mm.
(3) preparation of battery: with embodiment 1.
Embodiment 3:
(1) preparation of composite array/sulphur composite material is with embodiment 1.
(2) preparation of positive plate: by anhydrous FeCl
3join in the three-necked bottle containing chloroformic solution, stir and obtain dirty-green dirty solution, this dirty solution is dropwise instilled in three-necked bottle, adds thiophene monomer and composite array/sulphur stirring reaction 10h that mass ratio is 20:1; After having reacted, by solvent evaporate to dryness under room temperature, pour the HCl solution of 1mol/L into, stirring at room temperature 12h, filtering and washing, dry 24h obtains the coated array of polythiophene/sulphur anode composite sheet, obtained positive plate is cut into 40mm wide × the thick size of the long 0.33mm of 15mm.
(3) preparation of battery: with embodiment 1.
Embodiment 4:
Battery testing: charge and discharge cycles test is carried out to made battery, charges to 2.2V with 1C, 0.5C discharges, and discharge cut-off voltage is 1.2V, and test result is as follows:
1) the made battery of embodiment one material, open circuit voltage 1.82V, first discharge capacity 920mAh, circulate after 50 times, capacity attenuation rate is 25.2%.
The made battery of embodiment two material, open circuit voltage 1.85V, first discharge capacity 936mAh, circulate after 50 times, capacity attenuation rate is 26.7%.
The made battery of embodiment three material, open circuit voltage 1.83V, first discharge capacity 925mAh, circulate after 50 times, capacity attenuation rate is 26.2%.
Although be described in detail the utility model with reference to embodiment, but those skilled in the art is to be understood that, when the design of the present utility model do not departed from described in appended claims and equivalent thereof and scope, various amendment and replacement can be made to it.
Claims (4)
1. the positive plate based on nickel/carbon nano-tube composite array, comprise conducting polymer, carbon nano-tube-Ni array, sulphur and conductive substrates, it is characterized in that, Ni sheet vertical-growth is in conductive substrates, multi-walled carbon nano-tubes growth in situ is in Ni nanometer sheet surface, in the outer wall that elemental sulfur is attached to Ni sheet and array of multi-walled carbon nanotubes and hole inwall, external sheath conducting polymer forms 3 D stereo layer structure.
2. as claimed in claim 1 based on the positive plate of nickel/carbon nano-tube composite array, it is characterized in that, Ni sheet surface is containing Nano grade porous.
3. as claimed in claim 1 based on the positive plate of nickel/carbon nano-tube composite array, it is characterized in that, not containing additional conductive agent and binding agent in positive plate.
4., as claimed in claim 1 based on the positive plate of nickel/carbon nano-tube composite array, it is characterized in that, conducting polymer is the one in polyaniline, polypyrrole, polythiophene, polyacetylene and their derivative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420664854.5U CN204243130U (en) | 2014-11-07 | 2014-11-07 | Based on the positive plate of nickel/carbon nano-tube composite array |
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|---|---|---|---|
| CN201420664854.5U CN204243130U (en) | 2014-11-07 | 2014-11-07 | Based on the positive plate of nickel/carbon nano-tube composite array |
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| CN204243130U true CN204243130U (en) | 2015-04-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807932A (en) * | 2018-06-26 | 2018-11-13 | 山东科思姆特种材料技术开发有限公司 | Cathode material and preparation method thereof for graphene battery |
-
2014
- 2014-11-07 CN CN201420664854.5U patent/CN204243130U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807932A (en) * | 2018-06-26 | 2018-11-13 | 山东科思姆特种材料技术开发有限公司 | Cathode material and preparation method thereof for graphene battery |
| CN108807932B (en) * | 2018-06-26 | 2021-04-02 | 山东科思姆特种材料技术开发有限公司 | Cathode material for graphene battery and preparation method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20191107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |