CN103531757B - High magnification pulsed discharge zinc-silver oxide cell electrode composite material - Google Patents

High magnification pulsed discharge zinc-silver oxide cell electrode composite material Download PDF

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Publication number
CN103531757B
CN103531757B CN201210231180.5A CN201210231180A CN103531757B CN 103531757 B CN103531757 B CN 103531757B CN 201210231180 A CN201210231180 A CN 201210231180A CN 103531757 B CN103531757 B CN 103531757B
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zinc
pulsed discharge
oxide cell
silver oxide
ultracapacitor
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CN103531757A (en
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徐祯祥
贺必新
黄玉平
王春明
朱刚
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China Academy of Launch Vehicle Technology CALT
Beijing Research Institute of Precise Mechatronic Controls
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China Academy of Launch Vehicle Technology CALT
Beijing Research Institute of Precise Mechatronic Controls
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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
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • H01M4/364—Composites as mixtures
    • 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
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • 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
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • 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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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

The present invention relates to electrode composite material technical field, specifically disclose a kind of high magnification pulsed discharge zinc-silver oxide cell electrode composite material. In this composite, positive electrode is made up of Graphene and Active silver powder, and its weight proportion is: 1 ~ 3 part of Graphene, 97 ~ 99 parts of Active silver powders; Negative material comprises electrolytic zinc powder, alkaline material with carbon element, conductive agent and binding agent for ultracapacitor, and its weight proportion is: 91 ~ 95 parts of electrolytic zinc powders, 1 ~ 3 part of material with carbon element for alkaline ultracapacitor, 0.5 ~ 2 part of conductive agent, 2 ~ 5 parts of binding agents. This composite has larger surface area and less apparent density, there is higher electro-chemical activity, meet the instructions for use of the high capacity power source of high magnification pulsed discharge, be applicable to high-specific-power, high-energy-density, can high current pulsed discharge the requirement of lightweight miniaturization energy resource system; The advantage of combining super capacitor device and zinc-silver oxide cell electrode material, has good high current pulsed discharge, and does not damage originally as zinc-silver oxide cell electrode material performance.

Description

High magnification pulsed discharge zinc-silver oxide cell electrode composite material
Technical field
The invention belongs to electrode composite material technical field, be specifically related to a kind of high magnification pulsed discharge zinc-silver electricityPond electrode composite material.
Background technology
The chemical property of combination electrode is by dynamics and the large factor controlling of thermodynamics two. Thermodynamics determinesThe upper limit of active material electrochemical parameter, is mainly determined by the kind of material. Kinetic factor comprises active materialMaterial carries out the speed of electron exchange, and the diffusion velocity of ion in material etc., is embodied in active materialActual electrical chemical property aspect, by the decision such as structure, preparation technology of material.
The space power source of development, requires, on the basis of the permanent power discharge of routine, to have heavy current pulseThe performance of electric discharge, reaches the pulsed discharge ability of tens multiplying powers.
If adopt current zinc-silver oxide cell electrode material, during due to high current pulsed discharge, electrode polarization sharply addsGreatly, internal loss increases, and energy storage efficiency reduces, and voltage fluctuation etc. cause and drive these pulsating loadsScarce capacity, need to increase positive and negative electrode active matter quality and more than 30% just can there is enough large electric current arteries and veinsThe ability of impulse electricity, ensures voltage accuracy demand.
Summary of the invention
The object of the present invention is to provide a kind of high magnification pulsed discharge zinc-silver oxide cell electrode composite material, solveWhen existing zinc-silver oxide cell high current pulsed discharge, electrode polarization sharply strengthens, energy storage efficiency reduces and voltage waveThe moving problem such as large, be applicable to high-specific-power, high-energy-density, can high current pulsed discharge lightweight miniaturization energyOrigin system demand.
Technical scheme of the present invention is as follows: a kind of high magnification pulsed discharge zinc-silver oxide cell electrode composite material, bagContaining positive electrode and negative material, positive electrode is made up of Graphene and Active silver powder, and its weight proportion is:1 ~ 3 part of Graphene, 97 ~ 99 parts of Active silver powders; Negative material comprises electrolytic zinc powder, alkaline ultracapacitorWith material with carbon element, conductive agent and binding agent, its weight proportion is: 91 ~ 95 parts of electrolytic zinc powders, alkaline super electricity1 ~ 3 part of material with carbon element for container, 0.5 ~ 2 part of conductive agent, 2 ~ 5 parts of binding agents.
The apparent density of described Active silver powder is less than 0.7g/cm3, the apparent density of described electrolytic zinc powder is less than0.6g/cm3。
Described graphene conductive rate is 106More than S/m, specific area 250 ~ 300m2/ g, granularity is1 ~ 10 μ m, thickness 1 ~ 10nm.
Described alkaline ultracapacitor is 1700 ~ 2000m by the specific area of material with carbon element2/ g, granularity is5~8μm。
Described Graphene and Active silver powder are by supersonic oscillations adsorption method or in inert gas shieldingUnder, adopt mechanical mixture method synthetic.
Described alkaline ultracapacitor is stable in 45% KOH solution with material with carbon element, weighs zinc by proportioningPowder, alkaline material with carbon element, conductive agent, binding agent for ultracapacitor, adopt dispersed with stirring after adding suitable quantity of waterEvenly apply.
Remarkable result of the present invention is: a kind of high magnification pulsed discharge zinc-silver oxide cell electrode of the present inventionComposite has larger surface area and less apparent density, has higher electro-chemical activity, meets highThe instructions for use of the high capacity power source of multiplying power pulsed discharge, solves existing zinc-silver oxide cell due to high current pulsed dischargeTime, electrode polarization sharply strengthens, and energy storage efficiency reduces, and the problem such as voltage pulsation is large, has ultracapacitorWith zinc-silver oxide cell electrode material combination property, to be applicable to high-specific-power, high-energy-density, can to put by heavy current pulseThe lightweight miniaturization energy resource system requirement of electricity; Meanwhile, combining super capacitor device of the present invention and zinc-silver oxide cell electrodeThe advantage of material, adopts the symmetry, the asymmetric mixing capacitance material that match, with zinc-silver oxide cell Material cladding,Synthetic have good high current pulsed discharge, and do not damage originally as zinc-silver oxide cell electrode material performanceNovel electrode composite.
Detailed description of the invention
Embodiment 1
A kind of high magnification pulsed discharge zinc-silver oxide cell electrode composite material comprises positive electrode and negative material, itsIn, positive electrode is made up of Graphene and Active silver powder, and its weight proportion is: 1 part of Graphene, active silver99 parts, powder; Negative material comprises electrolytic zinc powder, alkaline material with carbon element, conductive agent and binding agent for ultracapacitor,Its weight proportion is: apparent density is less than 0.6g/cm391 parts of zinc powders, alkaline material with carbon element 3 for ultracapacitorPart, 1 part of conductive agent, 5 parts of binding agents. In positive electrode, the conductance of Graphene is 106More than S/m,Specific area 200m2/ g, granularity is 1 μ m, thickness 2nm; Active silver powder apparent density is less than 0.7g/cm3，Graphene and Active silver powder are by supersonic oscillations adsorption method or under inert gas shielding, employing machineTool mixed method is synthetic. In negative material, alkaline ultracapacitor is 1700 by the specific area of material with carbon elementm2/ g, granularity is 5 μ m, stable in 45% KOH solution, weighs zinc powder, alkaline super electricity by proportioningMaterial with carbon element, conductive agent, binding agent for container, adopt dispersed with stirring evenly to apply after interpolation suitable quantity of water.
Embodiment 2
A kind of high magnification pulsed discharge zinc-silver oxide cell electrode composite material comprises positive electrode and negative material, itsIn, positive electrode is made up of Graphene and Active silver powder, and its weight proportion is: 2 parts of Graphenes, active silver98 parts, powder; Negative material comprises electrolytic zinc powder, alkaline material with carbon element, conductive agent and binding agent for ultracapacitor,Its weight proportion is: apparent density is less than 0.6g/cm395 parts of zinc powders, alkaline material with carbon element 1 for ultracapacitorPart, 2 parts of conductive agents, 2 parts of binding agents. In positive electrode, the conductance of Graphene is 106More than S/m,Specific area 250m2/ g, granularity is 5 μ m, thickness 6nm; Active silver powder apparent density is less than 0.7g/cm3，Graphene and Active silver powder are by supersonic oscillations adsorption method or under inert gas shielding, employing machineTool mixed method is synthetic. In negative material, alkaline ultracapacitor is 1850 by the specific area of material with carbon elementm2/ g, granularity is 6 μ m, stable in 45% KOH solution, weighs zinc powder, alkaline super electricity by proportioningMaterial with carbon element, conductive agent, binding agent for container, adopt dispersed with stirring evenly to apply after interpolation suitable quantity of water.
Embodiment 3
A kind of high magnification pulsed discharge zinc-silver oxide cell electrode composite material comprises positive electrode and negative material, itsIn, positive electrode is made up of Graphene and Active silver powder, and its weight proportion is: 3 parts of Graphenes, active silver97 parts, powder; Negative material comprises electrolytic zinc powder, alkaline material with carbon element, conductive agent and binding agent for ultracapacitor,Its weight proportion is: apparent density is less than 0.6g/cm394.5 parts of zinc powders, alkaline ultracapacitor material with carbon element2 parts, 0.5 part of conductive agent, 3 parts of binding agents. In positive electrode, the conductance of Graphene is 106S/mAbove, specific area 300m2/ g, granularity is 10 μ m, thickness 11nm; Active silver powder apparent density is less than0.7g/cm3, Graphene and Active silver powder are by supersonic oscillations adsorption method or in inert gas shieldingUnder, adopt mechanical mixture method synthetic. In negative material, the ratio table of material with carbon element for alkaline ultracapacitorArea is 2000m2/ g, granularity is 8 μ m, stable in 45% KOH solution, by proportioning weighing zinc powder,Alkalescence is material with carbon element, conductive agent, binding agent for ultracapacitor, after interpolation suitable quantity of water, adopts dispersed with stirring evenApply.

Claims (5)

1. a high magnification pulsed discharge zinc-silver oxide cell, comprises positive electrode and negative material, it is characterized in that:Positive electrode is made up of Graphene and Active silver powder, and its weight proportion is: 1～3 part of Graphene, Active silver powder97～99 parts; Negative material comprises electrolytic zinc powder, alkaline material with carbon element, conductive agent and binding agent for ultracapacitor,Its weight proportion is: 91～95 parts of electrolytic zinc powders, 1～3 part of material with carbon element for alkaline ultracapacitor, conductive agent0.5～2 part, 2～5 parts of binding agents; The apparent density of described Active silver powder is less than 0.7g/cm3, described electrolysisThe apparent density of zinc powder is less than 0.6g/cm3。
2. high magnification pulsed discharge zinc-silver oxide cell according to claim 1, is characterized in that: describedGraphene conductive rate is 106More than S/m, specific area 250～300m2/ g, granularity is 1～10 μ m, thickness1～10nm。
3. high magnification pulsed discharge zinc-silver oxide cell according to claim 1, is characterized in that: describedAlkalescence ultracapacitor is 1700～2000m by the specific area of material with carbon element2/ g, granularity is 5～8 μ m.
4. high magnification pulsed discharge zinc-silver oxide cell according to claim 1, is characterized in that: describedGraphene and Active silver powder are by supersonic oscillations adsorption method or under inert gas shielding, employing machineTool mixed method is synthetic.
5. according to the high magnification pulsed discharge zinc-silver oxide cell described in claim 1 or 3, it is characterized in that: instituteThe alkaline ultracapacitor material with carbon element of stating is stable in 45% KOH solution, weighs zinc powder, alkali by proportioningProperty material with carbon element, conductive agent, binding agent for ultracapacitor, adopt dispersed with stirring to be evenly coated with after adding suitable quantity of waterCover.
CN201210231180.5A 2012-07-04 2012-07-04 High magnification pulsed discharge zinc-silver oxide cell electrode composite material Active CN103531757B (en)

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CN104218228B (en) * 2014-09-02 2016-09-21 中银（宁波）电池有限公司 A kind of alkaline battery
CN106207105A (en) * 2016-09-21 2016-12-07 贵州梅岭电源有限公司 A kind of high-performance zinc-silver oxide cell
CN108550800B (en) * 2018-03-28 2020-11-10 深圳新源柔性科技有限公司 Composite electrode and battery
CN109065849B (en) * 2018-06-26 2021-07-16 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） Zinc-silver battery cathode and zinc-silver battery

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CN101320821A (en) * 2007-06-04 2008-12-10 中南大学 Energy storage device with both capacitor and lithium ion battery characteristics and manufacturing method thereof

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CN101320821A (en) * 2007-06-04 2008-12-10 中南大学 Energy storage device with both capacitor and lithium ion battery characteristics and manufacturing method thereof

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锌银蓄电池研究进展;姜忆初 等;《船电技术》;20051215(第6期);57页左栏第1段-58页左栏倒数第2段 *

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