CN105514332A - Bendable single substrate lithium-air battery series connection structure - Google Patents
Bendable single substrate lithium-air battery series connection structure Download PDFInfo
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- CN105514332A CN105514332A CN201410490799.7A CN201410490799A CN105514332A CN 105514332 A CN105514332 A CN 105514332A CN 201410490799 A CN201410490799 A CN 201410490799A CN 105514332 A CN105514332 A CN 105514332A
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- lithium
- conductive coating
- insulating layer
- air electrode
- interlayer insulating
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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
Abstract
The present invention discloses a single substrate lithium-air battery series connection structure, which adopts a flexible substrate as a bottom layer, wherein a patterned electric conduction coating, a metal lithium negative electrode, an insulating separation layer, an air electrode and a water barrier gas permeation film are respectively processed from bottom to top. According to the present invention, the single substrate lithium-air battery series connection structure is flexible and bendable structural, and can improve applicability and safety of battery assemblies; the preparation of the positive electrode material and the negative electrode material on the single substrate is achieved, the battery system mass is reduced, and the energy density is improved; and with the change of the electric conduction coating patterned parameter, the regulation on the output current and the output voltage of the series connection assembly is achieved.
Description
Technical field
The invention belongs to field of chemical power source, be specifically related to a kind of lithium-air battery structure.
Background technology
The progress of Science and Technology promotes manufacturing continuous upgrading, the supply of the energy, uses and is stored as base support and whole industrial upgrading.Fossil energy is day by day exhausted, and ecological pollution constantly increases the weight of, and global climate constantly warms, and how cleanly the use energy becomes the key subject that human society cannot be avoided.Battery substitutes the power-equipments such as traditional fossil fuel driving machine motor-car becomes the focus that academia and industrial circle pay close attention to jointly.Through the development of two more than ten years, the capacity density of lithium ion battery has moved closer to its theoretical limit, but its mileage driving electric motor car to travel as electrokinetic cell is generally less than 100 miles, cannot meet actual demand.Lithium-air battery negative pole adopts the lithium metal (2860mAh/g) of most high electrochemistry capacitance, the active reaction thing of positive pole derives from outside air, thus the theoretical energy density of lithium-air battery can reach 11680Wh/kg, it can be used as electrokinetic cell once to fill electric drive electric vehicle and can reach more than 300 miles, reach the level of fossil fuel.Along with lasting research and the input of academia and industrial quarters, the desirable replacer that lithium-air battery is widely regarded as lithium ion battery is used for driving power vehicle.Consider material cost and use safety, the lithium-air battery of organic electrolysis plastidome becomes study subject.Accumulate through large quantifier elimination, positive/negative material and electrolyte are developed widely, and the cooperative effect between battery charging and discharging mechanism and each several part obtains deep research.But the performance study for lithium-air battery generally adopts simple lamella stacked structure and complicated external metallization device, and the capacity of test and cycle performance, only for properties of materials, cannot reflect the overall performance of battery.The JiguangZhang of U.S.'s Pacific Northwest National Laboratory and partner thereof; by by " air electrode-lithium band-air electrode " in conjunction with other cell devices by laminating packaging in outer protection material; make the flexible package lithium-air battery of typical " sandwich structure ", and then the performance of evaluation and test battery.Although this " sandwich structure " can be used for evaluating and testing the overall performance of battery, after considering that this simple stacked structure number of plies improves further, the requirement of inner air electrode pair gas diffusion and lithium anode cannot be solved to the sensitiveness of air, restriction energy density and security performance.Thus, the key that the energy density of battery, the flexible realizing battery and regulation output electric current and voltage become lithium-air practical application how is improved further.
Summary of the invention
The object of this invention is to provide a kind of monobasal lithium-air battery cascaded structure, improve the energy density of battery, the flexible realizing battery and regulation output electric current and voltage.
A kind of flexible monobasal lithium-air battery cascaded structure, comprises flexible base, board, lithium anode, air electrode,
Be sequentially set with the strips of conductive coating of more than 2 from left to right successively in the upper surface of flexible base, board, adjacent conductive is coated with interlayer and leaves gap; On each conductive coating, be provided with interlayer insulating layer, the lower surface of interlayer insulating layer is provided with groove, is placed with lithium anode in groove, and lithium anode contacts with conductive coating upper surface;
The lower surface right side edge of interlayer insulating layer extends downward in the gap of adjacent conductive coating, makes adjacent conductive be coated with interlayer by interlayer insulating layer separately; The lower surface left side edge of interlayer insulating layer contacts with conductive coating upper surface;
Be provided with air electrode in interlayer insulating layer upper surface, air electrode right side edge extends downward adjacent with air electrode place strips of conductive coating and is on the conductive coating on the right side of them, and contacts with the conductive coating on the right side of them;
Be provided with in air electrode upper surface the ventilated membrane that blocks water, the right side of the ventilated membrane that blocks water and left side edge are respectively to downward-extension and contact with conductive coating upper surface; Air electrode is in interlayer insulating layer and blocks water between ventilated membrane, to be provided with strip to block water ventilated membrane in interlayer insulating layer and blocking water between ventilated membrane, strip block water ventilated membrane by air electrode from left to right successively order be separated into more than 2 unit.
Infiltrate in air electrode and interlayer insulating layer and have electrolyte.
On the ventilated membrane that blocks water at each air electrode unit place, offer liquid injection hole respectively, liquid injection hole adopts fluid sealant shutoff sealing.
Described flexible base, board is a flat board, and lithium anode is strip structure.
Described flexible base, board is generally insulating material organic solvent to good stability, can be one-component material (as: macromolecular material such as PEN, PETG, polytetrafluoroethylene or Kynoar) or composite material (as: Metal polymer composite such as PETG-aluminize/polyethylene/enhancement layer/polyethylene, the aluminum metal film of surface anodization carries out the surface passivation metallic film of insulating process);
Described conductive coating comprises the conductive coating of the patterning directly generating in conjunction with mask technique and indirectly generate in conjunction with lithographic technique;
The described conductive layer in conjunction with the direct pattern generation of mask technique comprises: by mask plate covering part flexible substrates, carry out printing for unsheltered partially flexible substrate, blade coating, spraying, vacuum sputtering, the method pattern generation such as chemical deposition conductive coating; By flexible substrates is applied photoresist, carry out photoetching-exposure-development-lithographic method and form mask covering part flexible substrates, carry out printing for unsheltered partially flexible substrate, blade coating, spraying, vacuum sputtering, the method pattern generation such as chemical deposition conductive coating, then selectivity removing photoresist.
The described conductive coating in conjunction with the indirect pattern generation of lithographic technique comprises: flexible substrates is carried out to the methods such as blade coating, spraying, vacuum sputtering, chemical deposition and generate conductive coating, by mask plate or photoresist mask (coating-photoetching-exposure-development-etching) covering part conductive coating, remove unsheltered conductive coating by lithographic technique (photoengraving, X ray etching, electron beam lithography, ion beam etching, anodic oxidation etc.) and realize patterning; Flexible substrates is carried out to the methods such as blade coating, spraying, vacuum sputtering, chemical deposition and generate conductive coating, realize patterning by lithographic technique (X ray etching, electron beam lithography, ion beam etching, laser ablation etc.) remove portion conductive coating.
Described conductive coating can be generated by the method such as printing, blade coating, spraying, vacuum sputtering, chemical deposition conducting polymer (as polypyrrole, polyphenylene sulfide, poly-phthalocyanine-like compound, polyaniline, polythiophene etc.), metal (as copper, nickel, aluminium, silver etc.), inorganic compound (as mixing indium tin oxide, fluorine doped tin oxide etc.) etc.
The insulating polymer (as epoxy resin, polyester, polyurethane, organic siliconresin, polyimides alkyd resins etc.) that described interlayer insulating layer can be generated by methods such as printing, blade coating, spraying, vacuum sputtering, chemical depositions and insulating inorganic compound (as zirconia, silica etc.).
Described air electrode can be the carbon-based material (as Graphene, carbon nano-tube, business carbon dust etc.), inorganic compound (as manganese and oxygen compound, cobalt oxide, ruthenium oxygen compound, titanium nitride, titanium carbide etc.), the metal (as gold, silver, platinum etc.) that are generated by methods such as printing, blade coating, spraying, vacuum sputtering, chemical depositions.
The described ventilated membrane that blocks water can be macromolecular material (as PEN, PETG, polytetrafluoroethylene, dimethyl silicone polymer and Kynoar etc.), and inorganic material is (as Li
1.35t
1.75al
0.25p
2.7si
0.3o
12), inorganic-polymer composite material (as nickel foam compound dimethyl silicone polymer etc.).
Described liquid injection hole is the surperficial reserved duct of ventilated membrane that blocks water, and electrolyte immerses whole inside battery by negative pressure of vacuum backfill technology.
Described electrolyte is the electrolyte solvent such as electrolytic salt and tetraethyleneglycol dimethyl ether, dimethyl sulfoxide (DMSO), the propylene compositions such as lithium trifluoromethanesulp,onylimide, trimethyl fluoride sulfonyl lithium, lithium perchlorate, lithium hexafluoro phosphate.
Described fluid sealant is ultraviolet curing glue.
Beneficial effect of the present invention:
Lithium-air battery of the present invention does not have traditional lithium-ion battery, lithium-sulfur cell and fuel cell using positive pole-barrier film-negative pole as the continuous stacking formation laminated batteries of unit in the vertical direction, solve requirement and lithium anode that air electrode spreads gas to the problem of the sensitiveness of reaction gas, realize flexible and the resistance to pressure of lithium-air battery; Positive pole between different units is connected by conductive coating with negative pole, realizes the feature of cell integrated single substrate and single collector, improves the energy density of battery; Control the patterning parameter of conductive coating, realize being connected in series and regulation output electric current and voltage of different size unit.In a word, lithium-air battery cascaded structure of the present invention is flexible, cell integrated flexible, adjustable output voltage and electric current while improving energy density.
Accompanying drawing explanation
Fig. 1 is flexible monobasal lithium-air battery cascaded structure schematic diagram; In figure:
Embodiment:
The following examples for professional and technical personnel's complete understanding structure of the present invention more, but can not carry out the restriction of any mode for structure.
Embodiment 1
As shown in Figure 1, flexible base, board is the PEN film of thickness 200 microns, conductive coating is that magnetron sputtering method is prepared the fluorine doped tin oxide film of thickness 50 nanometer and forms pattern by laser etched surfaces, lithium metal is that the lithium battery being pressed on fluorine doped tin oxide surface by laminating machine commonly uses lithium band, interlayer insulating layer is the thickness 2-5 micron zirconia porous membrane prepared in conjunction with mask plate magnetron sputtering method, air electrode is the air electrode prepared as active material and binding agent roll-in method using commercialization material with carbon element KB600 and polytetrafluoroethylene, the ventilated membrane that blocks water is by the 10 micron pet films of sarin resin thermo-compression bonding in fluorine doped tin oxide.After cell package, the circular duct of the diameter 1 millimeter reserved by pet film surface, utilizes negative pressure of vacuum method that the tetraethyleneglycol dimethyl ether electrolyte of lithium trifluoromethanesulp,onylimide is infiltrated whole inside battery cavity.After fluid injection, liquid injection hole solidifies shutoff by ultraviolet cured adhesive under ultraviolet light conditions.
Embodiment 2
As shown in Figure 1, flexible base, board is thickness 500 microns of PETGs-/polyethylene/enhancement layer/poly metal-polymer laminated film of aluminizing, conductive coating is the thickness 20 nano aluminum metallic film prepared in conjunction with mask vacuum heat deposition, lithium metal is that the lithium battery being pressed on metallic aluminum surface by laminating machine commonly uses lithium band, interlayer insulating layer is the thickness 2-5 micron silica porous membrane prepared in conjunction with mask plate magnetron sputtering method, air electrode is the air electrode that the cobalt protoxide nano wire prepared using hydrothermal synthesis method and Kynoar are prepared as active material and binding agent roll-in method, the ventilated membrane that blocks water is the 10 microns of PEN films being bonded in aluminum metal film surface by ultraviolet cured adhesive.After cell package, the circular duct of the diameter reserved by PEN film surface 1 millimeter, utilizes negative pressure of vacuum method that the tetraethyleneglycol dimethyl ether electrolyte of trimethyl fluoride sulfonyl lithium is infiltrated whole inside battery cavity.After fluid injection, liquid injection hole solidifies shutoff by ultraviolet cured adhesive under ultraviolet light conditions.
Embodiment 3
As shown in Figure 1, flexible base, board is the metallic titanium plate that surface oxidation generates titanium oxide passivation layer, conductive coating is the thickness 20 nano aluminum metallic film etching the patterning that photoresist is formed on the surface oxidation treatment titanium plate of photoresist mask after vacuum heat deposition metallic aluminium again, lithium metal is that the lithium battery being pressed on metallic aluminum surface by laminating machine commonly uses lithium band, interlayer insulating layer is the polypropylene film in conjunction with mask vacuum evaporation, air electrode is the air electrode that surface in situ supports the Graphene of cobalt protoxide particle and polytetrafluoroethylene and prepares respectively as active material and binding agent roll-in method, the ventilated membrane that blocks water is the polydimethylsiloxanefilm film of heat perfusion.After cell package, the circular duct of the diameter 1 millimeter reserved by polydimethylsiloxanefilm film surface, utilizes negative pressure of vacuum method that the dimethyl sulfoxide (DMSO) electrolyte of lithium perchlorate is infiltrated whole inside battery cavity.After fluid injection, liquid injection hole solidifies shutoff by ultraviolet cured adhesive under ultraviolet light conditions.
Embodiment 4
As shown in Figure 1, flexible base, board is the pet film of thickness 200 microns, Kapton Tape is utilized to carry out insulation protection to part PET substrate, conductive coating is that electrochemical deposition method is prepared the metal nickel film of thickness 1 micron and removes Kapton Tape formation pattern after deposition is complete, lithium metal is that the lithium battery being pressed on metal nickel film surface by laminating machine commonly uses lithium band, interlayer insulating layer is the thickness 2-5 micron silica porous membrane prepared in conjunction with mask plate magnetron sputtering method, air electrode is the air electrode prepared as active material and binding agent roll-in method using the graphitized carbon material of elemental metals cobalt doped and polytetrafluoroethylene, the ventilated membrane that blocks water is by the 10 micron PEN films of sarin resin thermo-compression bonding in metal nickel film.After cell package, the circular duct of the diameter reserved by PEN film surface 1 millimeter, utilizes negative pressure of vacuum method that the 1-METHYLPYRROLIDONE electrolyte of lithium perchlorate is infiltrated whole inside battery cavity.After fluid injection, liquid injection hole solidifies shutoff by ultraviolet cured adhesive under ultraviolet light conditions.
Claims (4)
1. a flexible monobasal lithium-air battery cascaded structure, comprises flexible base, board, lithium anode, air electrode, it is characterized in that:
Be sequentially set with the strips of conductive coating of more than 2 from left to right successively in the upper surface of flexible base, board, adjacent conductive is coated with interlayer and leaves gap; On each conductive coating, be provided with interlayer insulating layer, the lower surface of interlayer insulating layer is provided with groove, is placed with lithium anode in groove, and lithium anode contacts with conductive coating upper surface;
The lower surface right side edge of interlayer insulating layer extends downward in the gap of adjacent conductive coating, makes adjacent conductive be coated with interlayer by interlayer insulating layer separately; The lower surface left side edge of interlayer insulating layer contacts with conductive coating upper surface;
Be provided with air electrode in interlayer insulating layer upper surface, air electrode right side edge extends downward adjacent with air electrode place strips of conductive coating and is on the conductive coating on the right side of them, and contacts with the conductive coating on the right side of them;
Be provided with in air electrode upper surface the ventilated membrane that blocks water, the right side of the ventilated membrane that blocks water and left side edge are respectively to downward-extension and contact with conductive coating upper surface; Air electrode is in interlayer insulating layer and blocks water between ventilated membrane, to be provided with strip to block water ventilated membrane in interlayer insulating layer and blocking water between ventilated membrane, strip block water ventilated membrane by air electrode from left to right successively order be separated into more than 2 unit.
2. according to flexible monobasal lithium-air battery cascaded structure according to claim 1, it is characterized in that: infiltrating in air electrode and interlayer insulating layer has electrolyte.
3., according to the flexible monobasal lithium-air battery cascaded structure described in claim 1 or 2, it is characterized in that:
On the ventilated membrane that blocks water at each air electrode unit place, offer liquid injection hole respectively, liquid injection hole adopts fluid sealant shutoff sealing.
4., according to flexible monobasal lithium-air battery cascaded structure according to claim 1, it is characterized in that:
Described flexible base, board is a flat board, and lithium anode is strip structure.
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| CN201410490799.7A CN105514332B (en) | 2014-09-23 | 2014-09-23 | A kind of flexible monobasal lithium-air battery cascaded structure |
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| CN201410490799.7A CN105514332B (en) | 2014-09-23 | 2014-09-23 | A kind of flexible monobasal lithium-air battery cascaded structure |
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| CN105514332B CN105514332B (en) | 2018-06-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360998A (en) * | 2018-10-22 | 2019-02-19 | 吕伟 | Super thin metal composite dual-electrode plates and preparation method thereof and fuel cell comprising it |
| CN111634982A (en) * | 2020-06-27 | 2020-09-08 | 赵玉平 | Preparation method of anode material for efficient phenol wastewater degradation |
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| CN103703601A (en) * | 2012-04-20 | 2014-04-02 | Lg化学株式会社 | Electrode assembly, and battery cell and device comprising same |
| US20140295294A1 (en) * | 2013-03-28 | 2014-10-02 | Honda Motor Co., Ltd. | Lithium air battery and lithium ion secondary battery |
| CN204156060U (en) * | 2014-09-23 | 2015-02-11 | 中国科学院大连化学物理研究所 | A kind of lithium-air battery structure |
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2014
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Patent Citations (4)
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| CN102244225A (en) * | 2010-05-12 | 2011-11-16 | 三星Sdi株式会社 | Battery pack and method for forming battery pack |
| CN103703601A (en) * | 2012-04-20 | 2014-04-02 | Lg化学株式会社 | Electrode assembly, and battery cell and device comprising same |
| US20140295294A1 (en) * | 2013-03-28 | 2014-10-02 | Honda Motor Co., Ltd. | Lithium air battery and lithium ion secondary battery |
| CN204156060U (en) * | 2014-09-23 | 2015-02-11 | 中国科学院大连化学物理研究所 | A kind of lithium-air battery structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360998A (en) * | 2018-10-22 | 2019-02-19 | 吕伟 | Super thin metal composite dual-electrode plates and preparation method thereof and fuel cell comprising it |
| CN111634982A (en) * | 2020-06-27 | 2020-09-08 | 赵玉平 | Preparation method of anode material for efficient phenol wastewater degradation |
| CN111634982B (en) * | 2020-06-27 | 2023-06-30 | 北京中核天友环境科技股份有限公司 | Preparation method of anode material for efficient phenol wastewater degradation |
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| CN105514332B (en) | 2018-06-19 |
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