SU499848A3 - Oxide mercury electrode for chemical current source - Google Patents

Oxide mercury electrode for chemical current source

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Publication number
SU499848A3
SU499848A3 SU1420776A SU1420776A SU499848A3 SU 499848 A3 SU499848 A3 SU 499848A3 SU 1420776 A SU1420776 A SU 1420776A SU 1420776 A SU1420776 A SU 1420776A SU 499848 A3 SU499848 A3 SU 499848A3
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SU
USSR - Soviet Union
Prior art keywords
current source
electrode
chemical current
mercury electrode
mercury
Prior art date
Application number
SU1420776A
Other languages
Russian (ru)
Inventor
Юнг Маргарете
Original Assignee
Варта Гмбх (Фирма)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from DE19691916959 external-priority patent/DE1916959C/en
Application filed by Варта Гмбх (Фирма) filed Critical Варта Гмбх (Фирма)
Application granted granted Critical
Publication of SU499848A3 publication Critical patent/SU499848A3/en

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    • H—ELECTRICITY
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    • H01M4/04—Processes of manufacture in general
    • H01M4/0438—Processes of manufacture in general by electrochemical processing
    • H01M4/044—Activating, forming or electrochemical attack of the supporting material
    • H01M4/0442—Anodisation, Oxidation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28—Electrolytic cell components
    • G01N27/30—Electrodes, e.g. test electrodes; Half-cells
    • G01N27/34—Dropping-mercury electrodes
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    • H01M4/044—Activating, forming or electrochemical attack of the supporting material
    • H01M4/0445—Forming after manufacture of the electrode, e.g. first charge, cycling
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    • H01M4/0445—Forming after manufacture of the electrode, e.g. first charge, cycling
    • H01M4/0447—Forming after manufacture of the electrode, e.g. first charge, cycling of complete cells or cells stacks
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    • H01M4/24—Electrodes for alkaline accumulators
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    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
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    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/481—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mercury
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    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
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    • H01M4/624—Electric conductive fillers
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    • H01M4/64—Carriers or collectors
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    • H01M4/662—Alloys
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    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/028—Positive electrodes
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  • Chemical & Material Sciences (AREA)
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Description

1one

Известен окисно-ртутный электрод дл  химического источника тока, активна  масса которого , содержаща  добавку электропроводного материала, заключена в матрицу из щелочестойкого металла.A mercury oxide electrode is known for a chemical current source, the active mass of which, containing an additive of an electrically conductive material, is enclosed in an alkali-resistant metal matrix.

Образующа с  во врем  разр да металлическа  ртуть собираетс  в капли и только поверхность их во врем  повторных зар дов может покрыватьс  тонкой пленкой окисла. Дл  обеспечени  повторного зар да ртуть должна быть сохранена в диспергированном состо нии .Metallic mercury formed during the discharge is collected in droplets and only their surface during recharges can be covered with a thin oxide film. To ensure recharging, mercury must be stored in a dispersed state.

С целью увеличени  числа циклов перезар да предлагаетс  матрицу выполнить из металла со структурой Рене , с добавкой св зующего , например полиизобутилена, в количестве 0,4-2,0 вес. %.In order to increase the number of recharge cycles, it is proposed to make the matrix from a metal with the Rene structure, with the addition of a binder, for example polyisobutylene, in an amount of 0.4-2.0 weight. %

Матрица преп тствует образованию и стеканию капель ртути, котора  даже после многих циклов зар дки и разр дки остаетс  мелко раздробленной и поэтому хорошо зар жаетс .The matrix prevents the formation and runoff of mercury droplets, which even after many charging and discharging cycles remains finely crushed and therefore well charged.

Благодар  недостаточной проводимости окиси ртути, в активную массу добавл етс  от 2 до 20 вес. % графита и/или ацетиленовой сажи. Можно использовать никелевый поролок , например порошок карбонильного никел . Из-за хорошей проводимости рекомендуетс  применение никелевых блесток в чешуйчатой форме, которые могут быть дополнительно амальгамированы. Благодар  этому в электроде не только кожно увеличить содержание ртути, но при разр дке готовых элементов сильнее подавл етс  потенциалDue to the lack of conductivity of mercury oxide, from 2 to 20 weight is added to the active mass. % graphite and / or acetylene black. Nickel powder can be used, for example carbonyl nickel powder. Due to its good conductivity, nickel spangles are recommended in a scaly form, which can be additionally amalgamated. Due to this, in the electrode, not only a skin increase in the mercury content, but when the finished elements are discharged, the potential is more suppressed.

NiOOH-№(ОН)2.NiOOH-No (OH) 2.

В качестве св зующего средства, нар ду с другими, пригодны и металлические порощки, однако они обладают и недостатком, заключающимс  в необходимости применени  высоких температур и давлений. Кроме того, труднее производить амальгамирование твердого, хот  и пористого, предмета, поскольку в первую очередь во врем  амальгамировани  заполн ютс  поры на поверхности. Поэтому рекомендуетс  примен ть органические св зующие средства, стойкие как к крепким щелочным растворам, так и к реакции окислени . Наиболее предпочтительным  вл етс  применение полиизобутилена. Пе вли   на электрохимические свойства, можно примен ть примерно от 0,4 до 2 вес. % этого св зующего, но наиболее подход щее содержание его составл ет от 0,5 до 1 вес. %.Metal baffles are also suitable as a binder, among others, but they also have the disadvantage of using high temperatures and pressures. In addition, it is more difficult to make an amalgamation of a solid, albeit porous, object, since the pores on the surface are filled primarily during amalgamation. Therefore, it is recommended to use organic binding agents that are resistant to both strong alkaline solutions and to the oxidation reaction. Most preferred is the use of polyisobutylene. Ne effect on the electrochemical properties can be applied from about 0.4 to 2 wt. % of this binder, but the most appropriate content is from 0.5 to 1 weight. %

В качестве материала матрицы примененыAs the material of the matrix applied

сплавы Рене , в частности сплавы никел , железа и кобальта по отдельности или вместе , сплавленные и обработанные кислотами, щелочами, водой или другими содержащими гидроокиси соединени ми, с тем чтобы растворить содержащиес  в них неактивные металлические компоненты, такие как алюминий , цинк, матний, кремний, кальций и литий . В этом процессе остающийс  металл насыщаетс  больщим количеством водорода.Rene alloys, in particular alloys of nickel, iron and cobalt, individually or together, fused and treated with acids, alkalis, water or other compounds containing hydroxides, in order to dissolve the inactive metal components contained in them, such as aluminum, zinc, matium, silicon, calcium and lithium. In this process, the remaining metal is saturated with a large amount of hydrogen.

Чтобы зар дить электрод, его обрабатывают перед постановкой электрохимическим способом таким образом, что ртуть преобразуетс  в окись ртути. Эта электрохимическа  обработка может быть также проведена, когда электрод уже помещен в элемент. Электроды , содержащие ртуть, могут зар жатьс  чисто химическим путем, а именно путем воздействи  кислородом, по возможности под повышенным давлением.To charge an electrode, it is treated before electrochemically, in such a way that mercury is converted to mercury oxide. This electrochemical treatment can also be carried out when the electrode is already placed in the cell. Electrodes containing mercury can be charged purely by chemical means, namely by exposure to oxygen, possibly under elevated pressure.

Конструкци  такого электрода стойка даже при одноразовой разр дке, но предпочтительно использовать ее в аккумул торах. Такой электрод особо пригоден дл  очень медленно разр жаемых источников тока, так как в известных источниках тока уже восстановленна  ртуть частично переходит в противоположный электрод, а затем покрывает на ртутном электроде еще имеющуюс  на нем окись ртути.The design of such an electrode is resistant even when disposable, but it is preferable to use it in batteries. Such an electrode is particularly suitable for very slowly discharging current sources, since, in known current sources, the already recovered mercury partially passes into the opposite electrode and then covers the mercury oxide which is still on it on the mercury electrode.

В известных электродах из окиси ртути можно было только при медленной разр дке использовать дл  получени  тока лишь поло1И1ну теоретической емкости. В предлагаемых электродах может быть использовано свыще 90% теоретической емкости.In the known mercury oxide electrodes, it was possible only at slow discharge to use only half of the theoretical capacitance to obtain current. In the proposed electrodes, more than 90% of the theoretical capacity can be used.

Электрод может быть применен в качестве измерительного, в частности, дл  измерений значений рН и потенциалов электродов, поскольку он легко регенерируетс  и очищаетс  после использовани  в различных растворах и не содержит каких-либо хрупких стекл нных деталей, а входит в непосредственный контакт с измер емым раствором, что исключает помехи в процессе измерени .The electrode can be used as a measurement, in particular, for measuring the pH values and potentials of the electrodes, since it is easily regenerated and cleaned after being used in various solutions and does not contain any fragile glass parts, but comes into direct contact with the measured solution. which eliminates interference in the measurement process.

Claims (2)

1.Окисно-ртутный электрод дл  химического источника тока, активна  масса которого, сол,ержаща  добавку электропроводного материала , заключена в матрицу из щелочестойкого металла, отличающийс  тем, что, с целью увеличени  числа циклов перезар да, матрица выполнена из металла со структурой Рене , например никел  Рене .1. Oxide mercury electrode for a chemical current source, the active mass of which, the salt, containing the addition of an electrically conductive material, is enclosed in an alkali-resistant metal matrix, characterized in that, in order to increase the number of recharge cycles, for example nickel Rene. 2.Электрод по п. 1, отличающийс  тем, что в указанный металл введена добавка св зующего, например полиизобутилена, в количестве 0,4-2,0%.2. Electrode according to claim 1, characterized in that an additive of a binder, for example polyisobutylene, is introduced into said metal in an amount of 0.4-2.0%.
SU1420776A 1969-04-02 1970-03-26 Oxide mercury electrode for chemical current source SU499848A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691916959 DE1916959C (en) 1969-04-02 Rechargeable mercury / mercury oxide electrode in which the active mass is fixed on matrix particles with solvent power for hydrogen, and process for their production

Publications (1)

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SU499848A3 true SU499848A3 (en) 1976-01-15

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SU1420776A SU499848A3 (en) 1969-04-02 1970-03-26 Oxide mercury electrode for chemical current source
SU1619611A SU406390A3 (en) 1969-04-02 1970-03-26

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JP (1) JPS5548430B1 (en)
AT (1) AT295619B (en)
BE (1) BE748092A (en)
BR (1) BR7017902D0 (en)
DK (1) DK126349B (en)
FR (1) FR2038150B1 (en)
GB (1) GB1280058A (en)
NL (1) NL7004221A (en)
SE (1) SE376513B (en)
SU (2) SU499848A3 (en)
ZA (1) ZA702101B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6286855B2 (en) * 2012-04-18 2018-03-07 日亜化学工業株式会社 Positive electrode composition for non-aqueous electrolyte secondary battery

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FR2038150A1 (en) 1971-01-08
ZA702101B (en) 1971-02-24
SE376513B (en) 1975-05-26
AT295619B (en) 1972-01-10
GB1280058A (en) 1972-07-05
DE1916959A1 (en) 1970-10-15
DK126349B (en) 1973-07-02
FR2038150B1 (en) 1975-06-13
BR7017902D0 (en) 1973-01-16
BE748092A (en) 1970-08-31
JPS5548430B1 (en) 1980-12-05
DE1916959B2 (en) 1971-12-02
NL7004221A (en) 1970-10-06
SU406390A3 (en) 1973-11-05

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