CN103531757A - High-rate pulse discharge zinc-silver battery electrode composite material - Google Patents

High-rate pulse discharge zinc-silver battery electrode composite material Download PDF

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Publication number
CN103531757A
CN103531757A CN201210231180.5A CN201210231180A CN103531757A CN 103531757 A CN103531757 A CN 103531757A CN 201210231180 A CN201210231180 A CN 201210231180A CN 103531757 A CN103531757 A CN 103531757A
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China
Prior art keywords
zinc
parts
composite material
electrode composite
ultracapacitor
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CN201210231180.5A
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CN103531757B (en
Inventor
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 invention relates to the technical field of electrode composite materials and in particular discloses a high-rate pulse discharge zinc-silver battery electrode composite material. According to the composite material, an anode material consists of the following components in parts by weight: 1-3 parts of graphene and 97-99 parts of active silver powder; a cathode material comprises the following components in parts by weight: 91-95 parts of electrolytic zinc powder, 1-3 parts of carbon material for an alkaline super capacitor, 0.5-2 parts of a conductive agent and 2-5 parts of an adhesive. The composite material has large superficial area, low apparent density and high electrochemical activity, meets the application requirements of a high-rate pulse discharge high-energy power supply and is suitable for the requirements of a light miniature energy system which is high in specific power and high in specific energy and can perform high-current pulse discharge. Moreover, the advantages of a supercapacitor and a zinc-silver battery electrode material are combined, the composite material has excellent high-current pulse discharge property, and the performance of the original zinc-silver battery electrode material is not damaged.

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 oxide cell electrode composite material.
Background technology
The chemical property of combination electrode is by dynamics and the large factor controlling of thermodynamics two.Thermodynamics determines the upper limit of active material electrochemical parameter, and mainly the kind by material determines.Kinetic factor comprises that active material carries out the speed of electron exchange, and the diffusion velocity of ion in material etc., is embodied in the actual electrical chemical property aspect of active material, by decisions such as the structure of material, preparation technologies.
The space power source of development, requires, on the basis of the permanent power discharge of routine, to have the performance of high current pulsed 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 strengthens, internal loss increases, energy storage efficiency reduces, and voltage fluctuation etc. cause the scarce capacity that drives these pulsating loads, need to increase positive and negative electrode active matter quality and more than 30% just can there is the ability of enough high current pulsed discharges, guarantee 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, while solving existing zinc-silver oxide cell high current pulsed discharge, the problems such as electrode polarization sharply strengthens, energy storage efficiency reduces and voltage fluctuation is large, be applicable to high-specific-power, high-energy-density, can high current pulsed discharge lightweight miniaturization energy resource 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, comprise positive electrode and negative material, and positive electrode is comprised 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.
The apparent density of described Active silver powder is less than 0.7g/cm 3, the apparent density of described electrolytic zinc powder is less than 0.6g/cm 3.
Described graphene conductive rate is 10 6more than S/m, specific area 250 ~ 300m 2/ g, granularity is 1 ~ 10 μ m, thickness 1 ~ 10nm.
Described alkaline ultracapacitor is 1700 ~ 2000m by the specific area of material with carbon element 2/ g, granularity is 5 ~ 8 μ m.
Described Graphene and Active silver powder, by supersonic oscillations adsorption method or under inert gas shielding, adopt mechanical mixture method synthetic.
Described alkaline ultracapacitor is stable in 45% KOH solution with material with carbon element, by proportioning, weighs zinc powder, alkaline material with carbon element, conductive agent, binding agent ultracapacitor for, after interpolation suitable quantity of water, adopts dispersed with stirring evenly to apply.
Remarkable result of the present invention is: a kind of high magnification pulsed discharge zinc-silver oxide cell electrode composite material of the present invention 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, while solving existing zinc-silver oxide cell due to high current pulsed discharge, electrode polarization sharply strengthens, energy storage efficiency reduces, the problems such as voltage fluctuation is large, there is ultracapacitor and zinc-silver oxide cell electrode material combination property, to be applicable to high-specific-power, high-energy-density, lightweight miniaturization energy resource system requirement that can high current pulsed discharge, simultaneously, the advantage of combining super capacitor device of the present invention and zinc-silver oxide cell electrode material, the symmetry that employing matches, asymmetric mixing capacitance material, with zinc-silver oxide cell Material cladding, synthetic have good high current pulsed discharge, and do not damage script as the novel electrode composite material of zinc-silver oxide cell electrode material performance.
Embodiment
Embodiment 1
Pulsed discharge zinc-silver oxide cell electrode composite material comprises positive electrode and a negative material, and wherein, positive electrode is comprised of Graphene and Active silver powder, and its weight proportion is: 1 part of Graphene, 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: apparent density is less than 0.6g/cm 391 parts of zinc powders, 3 parts of material with carbon elements for alkaline ultracapacitor, 1 part of conductive agent, 5 parts of binding agents.In positive electrode, the conductance of Graphene is 10 6more than S/m, specific area 200m 2/ g, granularity is 1 μ m, thickness 2nm; Active silver powder apparent density is less than 0.7g/cm 3, Graphene and Active silver powder, by supersonic oscillations adsorption method or under inert gas shielding, adopt mechanical mixture method synthetic.In negative material, alkaline ultracapacitor is 1700m by the specific area of material with carbon element 2/ g, granularity is 5 μ m, stable in 45% KOH solution, by proportioning, weighs zinc powder, alkaline material with carbon element, conductive agent, binding agent ultracapacitor for, after interpolation suitable quantity of water, adopts dispersed with stirring evenly to apply.
Embodiment 2
Pulsed discharge zinc-silver oxide cell electrode composite material comprises positive electrode and a negative material, and wherein, positive electrode is comprised of Graphene and Active silver powder, and its weight proportion is: 2 parts of Graphenes, 98 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: apparent density is less than 0.6g/cm 395 parts of zinc powders, 1 part of material with carbon element for alkaline ultracapacitor, 2 parts of conductive agents, 2 parts of binding agents.In positive electrode, the conductance of Graphene is 10 6more than S/m, specific area 250m 2/ g, granularity is 5 μ m, thickness 6nm; Active silver powder apparent density is less than 0.7g/cm 3, Graphene and Active silver powder, by supersonic oscillations adsorption method or under inert gas shielding, adopt mechanical mixture method synthetic.In negative material, alkaline ultracapacitor is 1850m by the specific area of material with carbon element 2/ g, granularity is 6 μ m, stable in 45% KOH solution, by proportioning, weighs zinc powder, alkaline material with carbon element, conductive agent, binding agent ultracapacitor for, after interpolation suitable quantity of water, adopts dispersed with stirring evenly to apply.
Embodiment 3
Pulsed discharge zinc-silver oxide cell electrode composite material comprises positive electrode and a negative material, and wherein, positive electrode is comprised of Graphene and Active silver powder, and its weight proportion is: 3 parts of Graphenes, 97 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: apparent density is less than 0.6g/cm 394.5 parts of zinc powders, 2 parts of material with carbon elements for alkaline ultracapacitor, 0.5 part of conductive agent, 3 parts of binding agents.In positive electrode, the conductance of Graphene is 10 6more than S/m, specific area 300m 2/ g, granularity is 10 μ m, thickness 11nm; Active silver powder apparent density is less than 0.7g/cm 3, Graphene and Active silver powder, by supersonic oscillations adsorption method or under inert gas shielding, adopt mechanical mixture method synthetic.In negative material, alkaline ultracapacitor is 2000m by the specific area of material with carbon element 2/ g, granularity is 8 μ m, stable in 45% KOH solution, by proportioning, weighs zinc powder, alkaline material with carbon element, conductive agent, binding agent ultracapacitor for, after interpolation suitable quantity of water, adopts dispersed with stirring evenly to apply.

Claims (6)

1. a high magnification pulsed discharge zinc-silver oxide cell electrode composite material, comprises positive electrode and negative material, it is characterized in that: positive electrode is comprised 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.
2. high magnification pulsed discharge zinc-silver oxide cell electrode composite material according to claim 1, is characterized in that: the apparent density of described Active silver powder is less than 0.7g/cm 3, the apparent density of described electrolytic zinc powder is less than 0.6g/cm 3.
3. high magnification pulsed discharge zinc-silver oxide cell electrode composite material according to claim 1, is characterized in that: described graphene conductive rate more than 106S/m, specific area 250 ~ 300m 2/ g, granularity is 1 ~ 10 μ m, thickness 1 ~ 10nm.
4. high magnification pulsed discharge zinc-silver oxide cell electrode composite material according to claim 1, is characterized in that: described alkaline ultracapacitor is 1700 ~ 2000m by the specific area of material with carbon element 2/ g, granularity is 5 ~ 8 μ m.
5. high magnification pulsed discharge zinc-silver oxide cell electrode composite material according to claim 1, is characterized in that: described Graphene and Active silver powder, by supersonic oscillations adsorption method or under inert gas shielding, adopt mechanical mixture method synthetic.
6. according to the high magnification pulsed discharge zinc-silver oxide cell electrode composite material described in claim 1 or 4, it is characterized in that: described alkaline ultracapacitor is stable in 45% KOH solution with material with carbon element, by proportioning, weigh zinc powder, alkaline material with carbon element, conductive agent, binding agent ultracapacitor for, after interpolation suitable quantity of water, adopt dispersed with stirring evenly to apply.
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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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104218228A (en) * 2014-09-02 2014-12-17 中银（宁波）电池有限公司 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
CN108550800A (en) * 2018-03-28 2018-09-18 深圳新源柔性科技有限公司 Composite electrode and battery
CN109065849A (en) * 2018-06-26 2018-12-21 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） A kind of capacitance material and preparation method thereof for zinc-silver oxide cell cathode

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
姜忆初 等: "锌银蓄电池研究进展", 《船电技术》, no. 6, 15 December 2005 (2005-12-15) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104218228A (en) * 2014-09-02 2014-12-17 中银（宁波）电池有限公司 Alkaline battery
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
CN108550800A (en) * 2018-03-28 2018-09-18 深圳新源柔性科技有限公司 Composite electrode and battery
CN109065849A (en) * 2018-06-26 2018-12-21 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） A kind of capacitance material and preparation method thereof for zinc-silver oxide cell cathode
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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