• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A process for the production of electric current using an electrochemical generator having a cell with an anode compartment containing, during the production of electric current, a moving primary aqueous electrolyte containing particles formed, at least in part, of an active metallic material capable of being oxidized with the loss of the electrons collected by an anodic electron collector is improved in the following manner: during the production of electric current substantially the entire surface of the anodic electron collector arranged on the primary electrolyte side is formed of a metallic material which is in passivated state; prior to the production of electric current, this surface is placed in contact with a secondary aqueous electrolyte, said surface being then brought to a potential less than the equilibrium potential of the electrochemical reaction of the reduction of the water contained in said secondary electrolyte, said reduction reaction liberating hydrogen.
    公开号:SU722507A3
    申请号:SU782573698
    申请日:1978-01-31
    公开日:1980-03-15
    发明作者:Дюран Пьер
    申请人:Мишлен Э Ко., Компани Женераль Дез Этаблиссеман Мишлен (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to chemical current sources, in particular to methods for preparing for operation current sources with a suspension of oxidizable metal particles. 5
    A known current source containing an anode compartment with an active mass in the form of a suspension of metal particles in an electrolyte and an inert 10 metal electron collector and a cathode compartment [1]. However, during the operation of such a current source, electrochemical oxidation of metal particles in the electrolyte occurs, in particular zinc particles in the (non-closed loop, electrolyte electrolyte), during the circulation of the suspension, as a result of which the suspension particles undergo electronically repeated collisions with the anode collector, which made of nickel or any other highly conductive substance chemically inert to the electrolyte.The metal particles deposited on the collector surface cause agglomeration of particles in suspension leads to clogging of the anode compartment and the power loss of the current source.
    Also known is an electrochemical generator containing an inert anode collector with a passivating layer of one or more collector metal compounds, a cathode, and means for circulating the susgenation of zinc particles in an alkaline electrolyte [2]. In this generator, the passivating layer prevents the direct contact of the suspension particles with the surface of the collector and, accordingly, the agglomeration of the particles. However, in the case of the formation of a continuous layer of particles in the anode compartment, a passivating layer can cause a drop in the generator power.
    The purpose of the invention is the elimination of a drop in generator power.
    This is achieved by the fact that, according to the proposed method of preparing for operation of an electrochemical generator, the surface of the anode collector is brought into contact with a secondary aqueous electrolyte and a potential lower than the decomposition potential of water is established on it.
    The potential at the anode collector can be established by coating its surface with a layer of zinc particles.
    The potential at the anode collector can be established by connecting it to a voltage regulator.
    In addition, the potential at the anode collector can be established by connecting it in series with a zinc part or a part in contact with zinc and a binder electrolyte that is in ion contact with the secondary electrolyte.
    As a secondary electrolyte, an alkaline electrolyte can be taken, which, for example, is used during the operation of the generator.
    In FIG. 1 shows an electrochemical generator prepared for operation by the described method; in FIG. 2 - anode collector of the generator in contact with the secondary electrolyte and connected to a voltage regulator.
    The electrochemical generator contains an inert anode collector 1, a cathode 2, and a pump 3 for circulating a suspension of zinc particles 4 in an alkaline electrolyte in a closed circuit that includes a reservoir 5 with electrolyte.
    The proposed method consists in the fact that the anode collector 1 is brought into contact with the secondary aqueous electrolyte 6 and a potential lower than the water decomposition potential is installed on the anode collector. For this, for example, the anode collector is connected to a voltage stabilizer 7 and a counter electrode 8 in ionic contact with the secondary electrolyte by means of a binding electrolyte 9.
    When the potential of the anode collector is lower than the potential for decomposition of water, hydrogen is released, which is introduced into the crystal lattice of the passivating layer and reduces its resistance.
    权利要求:
    Claims (2)
    [1]
    can be installed by connecting it to a voltage stabilizer. In addition, a potentiator on the anode collector can be installed by connecting it in series with a zinc part or a part in contact with zinc and a bonding electrolyte that is in ionic contact with the secondary electrolyte. As a secondary electrolyte, an alkaline electrolyte can be taken which, for example, is used during generator operation. FIG. 1 shows an electrochemical generator prepared for operation by the described method; in fig. 2 - anode collector of the generator, which is in contact with the secondary electrolyte and connected to a voltage stabilizer. The electrochemical generator contains an inert anode collector 1, a cathode 2, and a pump 3 for circulating a suspension of zinc particles 4 in an alkaline electrolyte in a closed loop that includes an electrolyte reservoir 5. The proposed method consists in that the anode collector 1 is brought into contact with the secondary aqueous electrolyte 6 and establishes a potential on the anode collector that is less than the decomposition potential of the water. For this, for example, the anode collector is connected to a voltage stabilizer 7 and a counter electrode 8, which is in ionic contact with the secondary electrolyte via a bonding electrolyte 9. At an anode collector potential less than the decomposition potential of water, hydrogen is released, which into the crystal lattice of the passivating layer and reduces its resistance. Claim 1. Method of preparation for operation of an electrochemical generator containing an inert anode collector with a passivation layer of one or more compounds of the collector metal, the cathode and means for circulating a suspension of zinc particles in an alkaline electrolyte, characterized in that The surface of the anode collector is brought into contact with the secondary aqueous electrolyte and a potential is established thereon that is lower than the water decomposition potential. 2. A method according to Claim 1, characterized by the fact that the potential on the anode collector is established by covering its surface with a layer of zinc particles. 3. Method POP 1, which is also distinguished by the fact that the potential at the anode collector is established by connecting it with a voltage stabilizer. 4. A method according to claim 1, characterized in that the potential at the anode collector is established by serially connecting it with a zinc part or a part in contact with zinc and a bonding electrolyte that is in ionic contact with the secondary electrolyte. 5. Method by paragraphs. 1-4, that is, so that electrolyte is taken as a secondary electrolyte as a secondary electrolyte. Sources of information taken into account during the examination 1. CtUA patent No. 3387400, cl. 136-86, 03.06.75.
    [2]
    2.Patent of the USSR in application number 2381099/07, cl. H 01 M 12/06, 01,08.75.
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    类似技术:
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    US4643959A|1987-02-17|Process for producing a gas-tight, sealed alkaline battery
    US4306950A|1981-12-22|Process for forming sulfuric acid
    US3485672A|1969-12-23|Electric current producing cell
    US3753779A|1973-08-21|Method of making zinc electrodes
    US4048027A|1977-09-13|Process for producing electrolytic MnO2 from molten manganese nitrate hexahydrate
    US3682707A|1972-08-08|Stabilization of silver catalyst in an air diffusion electrode
    US4074030A|1978-02-14|Process for producing nickel oxide cathodic reactant for primary cells
    DE2437183B2|1978-07-06|Alkaline galvanic element and process for its manufacture
    US4131515A|1978-12-26|Method for making positive electrode for lead-sulfuric acid storage battery
    US2023717A|1935-12-10|Electric battery cell
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    US3836403A|1974-09-17|Lithium batteries and method of preparing a positive electrode material therefor
    US3770508A|1973-11-06|Cathodic activation of gas diffusion electrodes
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    同族专利:
    公开号 | 公开日
    BE863302A|1978-05-16|
    DE2803631B2|1981-05-14|
    US4166885A|1979-09-04|
    ES466444A1|1979-06-16|
    FR2379174A1|1978-08-25|
    DE2803631A1|1978-08-03|
    AU3283378A|1980-02-21|
    DE2803631C3|1982-04-15|
    ES475426A1|1979-04-16|
    CA1088620A|1980-10-28|
    NL7800921A|1978-08-02|
    SE7801081L|1978-08-01|
    IT7867177D0|1978-01-30|
    AU511952B2|1980-09-11|
    GB1556351A|1979-11-21|
    CH623686A5|1981-06-15|
    FR2379174B1|1980-11-28|
    JPS5398044A|1978-08-26|
    BR7800598A|1978-10-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2631115A|1949-08-06|1953-03-10|Manganese Battery Corp|Electrodes for electrochemical cells|
    US3316126A|1962-03-01|1967-04-25|Pullman Inc|Fuel cell|
    CH533366A|1970-06-09|1973-01-31|Battelle Memorial Institute|Process for the production of electrical energy by electrochemical oxidation of zinc and generator for its implementation|
    CA982215A|1971-12-20|1976-01-20|Jean-Paul Pompon|Electrochemical storage battery of the forced flow type|
    DE2212577C3|1972-03-15|1982-04-15|American Cyanamid Co., Wayne, N.J.|Galvanic element|WO1980002344A1|1979-04-12|1980-10-30|S Zaromb|Methods and apparatus for generating heat and electrical energy from aluminum waste and other inexpensive aluminum products|
    EP0108002A1|1982-10-21|1984-05-09|Transports Recherches Etudes Groupement D'interet Economique |Active device of an electrochemical generator with a negative zinc electrode|
    US5264302A|1988-02-26|1993-11-23|Stork Screens B.V.|Electrode material for use in a storage battery|
    NL8800500A|1988-02-26|1989-09-18|Stork Screens Bv|ELECTRODE MATERIAL FOR APPLICATION IN A SUSPENSION ACCUMULATOR SEMI-CELL, ACCUMULATOR SEMI-CELL WITH AN ELECTRODE OF SUCH MATERIAL AND SUCH ACCUMULATOR SEMI-CELL CONTAINING BATTERY.|
    NL9001199A|1990-05-23|1991-12-16|Stork Screens Bv|CHARGING METHOD FOR ZINC SUSPENSION ACCUMULATOR; ZINC SUSPENSION ACCUMULATOR AND ZINC SUSPENSION TO BE USED FOR ACCUMULATOR.|
    KR101976344B1|2016-03-10|2019-05-07|쓰리엠 이노베이티브 프로퍼티즈 컴파니|Electrode solution, electrochemical cell and battery therefrom|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7703092A|FR2379174B1|1977-01-31|1977-01-31|
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