DE1201438B - Negative electrode for alkaline batteries - Google Patents

Negative electrode for alkaline batteries

Info

Publication number
DE1201438B
DE1201438B DEU10144A DEU0010144A DE1201438B DE 1201438 B DE1201438 B DE 1201438B DE U10144 A DEU10144 A DE U10144A DE U0010144 A DEU0010144 A DE U0010144A DE 1201438 B DE1201438 B DE 1201438B
Authority
DE
Germany
Prior art keywords
percent
cadmium
hydroxide
metal powder
conductive metal
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
DEU10144A
Other languages
German (de)
Inventor
Ralph Martin Foecking
Demetrios Vasilios Louzos
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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.)
Filing date
Publication date
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of DE1201438B publication Critical patent/DE1201438B/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • H01M4/622—Binders being polymers
    • 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
    • H01M4/24—Electrodes for alkaline accumulators
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624—Electric conductive fillers
    • H01M4/626—Metals
    • 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
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/027—Negative electrodes
    • 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
    • H01M4/04—Processes of manufacture in general
    • H01M4/043—Processes of manufacture in general involving compressing or compaction
    • 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
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy coatings
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/70—Carriers or collectors characterised by shape or form
    • H01M4/72—Grids
    • H01M4/74—Meshes or woven material; Expanded metal
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Inert Electrodes (AREA)

Description

BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY

DEUTSCHESGERMAN

PATENTAMTPATENT OFFICE

AUSLEGESCHRIFTEDITORIAL

Int. α.:Int. α .:

HOImHOIm

Deutsche KL: 21b-25/03 German KL: 21b-25/03

Nummer: 1201438Number: 1201438

Aktenzeichen: U10144 VI b/21 bFile number: U10144 VI b / 21 b

Anmeldetag: 21. September 1963Filing date: September 21, 1963

Auslegetag: 23. September 1965Opening day: September 23, 1965

Es sind schon negative Elektroden für alkalische Akkumulatoren bekannt, die aus einem zusammengepreßten Gemisch eines leitenden Metallpulvers mit einem negativen aktiven Material bestehen. Als leitendes Metallpulver enthalten sie Kupfer, Nickel 5 und/oder Eisen. Als negatives aktives Material können beispielsweise Cadmium, Cadmiumoxyd oder Cadmiumhydroxyd verwendet werden.There are already negative electrodes for alkaline batteries known, which are compressed from a Mixture of a conductive metal powder with a negative active material. As a senior In metal powder they contain copper, nickel 5 and / or iron. As a negative active material can for example cadmium, cadmium oxide or cadmium hydroxide can be used.

Diese bekannten Elektroden haben eine verhältnismäßig geringe Porosität und daher eine geringe to aktive Oberfläche. Für ihre Herstellung sind auch ziemlich hohe Drücke erforderlich, um zusammenhängende Körper zu erhalten.These known electrodes have a relatively low porosity and therefore a low to active surface. For their production, quite high pressures are also required in order to be coherent Body.

Es wurde nun gefunden, daß diese Nachteile bei negativen Elektroden vermieden werden, die aus einem zusammengepreßten Gemisch bestehen, welches außer einem leitenden Metallpulver und einem negativen aktiven Material zusätzlich Kaliumhydroxyd und/oder Natriumhydroxyd enthält.It has now been found that these disadvantages can be avoided with negative electrodes, which consist of consist of a compressed mixture which, in addition to a conductive metal powder and a negative active material additionally contains potassium hydroxide and / or sodium hydroxide.

Die erfindungsgemäßen Elektroden können als leitendes Material insbesondere in bekannter Weise Nickel und/oder Eisenpulver enthalten. Als negatives aktives Material enthalten sie vorzugsweise Cadmium, Cadmiumoxyd, Cadmiumhydroxyd, Zink und/oder Zinkoxyd.The electrodes according to the invention can be used as conductive Material in particular contain nickel and / or iron powder in a known manner. As a negative active material they preferably contain cadmium, cadmium oxide, cadmium hydroxide, zinc and / or zinc oxide.

Das Mengenverhältnis der Bestandteile kann innerhalb weiter Grenzen schwanken. Bevorzugt sind Gemische, die bis zu 50 Gewichtsprozent leitendes Metallpulver, 40 bis 95 Gewichtsprozent negatives aktives Material und 5 bis 25 Gewichtsprozent Alkalihydroxyd enthalten.The proportions of the constituents can vary within wide limits. Preferred are mixtures that contain up to 50 percent by weight conductive metal powder, 40 to 95 percent by weight negative active material and 5 to 25 percent by weight alkali hydroxide.

Elektroden gemäß der Erfindung können durch Mischen der Bestandteile und Formen unter Druck hergestellt werden. Zum Mischen können Vorrichtungen bekannter Art verwendet werden, z. B. Reibmühlen, Hammermühlen oder Mühlen mit rotierenden Messern. Häufig genügt auch ein einfaches Mischen ohne besondere Apparaturen. Das Mischen wird erleichtert, wenn man das Alkalihydroxyd in Form von Flocken oder Kugeln verwendet. Electrodes according to the invention can be prepared by mixing the ingredients and molding under pressure getting produced. Devices of known type can be used for mixing, e.g. B. attrition mills, Hammer mills or mills with rotating knives. A simple one is often enough Mixing without special equipment. Mixing is made easier if you add the alkali hydroxide used in the form of flakes or balls.

Das Formen der Elektroden wird zweckmäßigerweise unter Druck vorgenommen, z. B. unter einem Druck von etwa 4,5 bis 28 kg/mm2.The shaping of the electrodes is expediently carried out under pressure, e.g. B. under a pressure of about 4.5 to 28 kg / mm 2 .

Elektroden gemäß der Erfindung sind selbsttragend und blättern beim Gebrauch nicht ab. Da sie kein Wasser enthalten, lassen sie sich leicht lagern. Nach dem Einbau in den Akkumulator wird das Alkalihydroxyd bei Berührung mit dem wäßrigen Elektrolyten aus den Elektroden herausgelöst, wodurch diese eine hohe Porosität und eine große aktive Oberfläche erhalten. Die Elektroden brauchen Negative Elektrode für alkalische AkkumulatorenElectrodes according to the invention are self-supporting and do not peel off in use. Since they do not contain water, they are easy to store. After installation in the accumulator, the Alkali hydroxide dissolved out of the electrodes on contact with the aqueous electrolyte, whereby these get a high porosity and a large active surface. The electrodes need Negative electrode for alkaline batteries

Anmelder:Applicant:

Union Carbide Corporation,Union Carbide Corporation,

New York, N. Y. (V. St. A.)New York, N.Y. (V. St. A.)

Vertreter:Representative:

Dipl.-Ing. H. Görtz, Patentanwalt,Dipl.-Ing. H. Görtz, patent attorney,

Frankfurt/M., Schneckenhofstr. 27Frankfurt / M., Schneckenhofstr. 27

Als Erfinder benannt:
Ralph Martin Foecking,
Demetrios Vasilios Louzos,
Rocky River, Ohio (V. St. A.)Named as inventor:
Ralph Martin Foecking,
Demetrios Vasilios Louzos,
Rocky River, Ohio (V. St. A.)

Beanspruchte Priorität:
V. St. v. Amerika vom 21. September 1962
(225 394)Claimed priority:
V. St. v. America September 21, 1962
(225 394)

auch keine zusätzlichen Bindemittel zu enthalten, wobei manche Nachteile vermieden werden.also not to contain any additional binders, some disadvantages being avoided.

Nachstehend sind beispielsweise die Zusammensetzungen einiger erfindungsgemäßer Elektroden in Gewichtsprozent wiedergegeben.For example, below are the compositions of some electrodes in accordance with the invention shown in percent by weight.

Ni oder FeNi or Fe CdOCdO Cd (OH)2 Cd (OH) 2 CdCD KOHKOH 11 36,336.3 54,554.5 9,29.2 22 33,033.0 49,649.6 —- —- 17,417.4 33 35,035.0 26,326.3 30,030.0 —- 8,78.7 44th 36,536.5 —- —- 54,454.4 9,19.1

Die mit 4 bezeichnete Mischung dient zur Herstellung geladener Elektroden.The mixture labeled 4 is used to produce charged electrodes.

Claims (4)

Patentansprüche:Patent claims: 1. Negative Elektrode aus einem zusammengepreßten Gemisch eines leitenden Metallpulvers und einem negativen aktiven Material für alkalische Akkumulatoren, dadurch gekennzeichnet, daß sie Kaliumhydroxyd und/oder Natriumhydroxyd enthält.1. Negative electrode made from a compressed mixture of conductive metal powder and a negative active material for alkaline storage batteries, characterized in that that it contains potassium hydroxide and / or sodium hydroxide. 2. Elektrode nach Anspruch 1, dadurch gekennzeichnet, daß sie als leitendes Metallpulver in bekannter Weise Nickel- und/oder Eisenpulver enthält.2. Electrode according to claim 1, characterized in that it is used as a conductive metal powder Contains nickel and / or iron powder in a known manner. 509 688/176509 688/176 I 201 438I 201 438 3 43 4 3. Elektrode nach Anspruch 1 oder 2, dadurch bis 95 Gewichtsprozent negatives aktives gekennzeichnet, daß sie als negatives aktives Ma- terial und 5 bis 2$ Gewichtsprozent Alkalihy terial Cadmium, Cadmiumoxyd, Cadmiumhy- droxyd enthält.3. Electrode according to claim 1 or 2, characterized in that it contains up to 95 percent by weight negative active material and 5 to 2 percent by weight alkali metal cadmium, cadmium oxide, cadmium hydroxide. droxyd, Zink und/oder Zinkoxyd enthält. —contains hydroxide, zinc and / or zinc oxide. - 4. Elektrode nach einem der Ansprüche 1 5 . .4. Electrode according to one of claims 1-5. . bis 3, dadurch gekennzeichnet, daß sie bis In Betracht gezogene Dfuckschnften:up to 3, characterized in that they up to Considered Dfuckschnften: 50 Gewichtsprozent leitendes Metallpulver, 40 Deutsche Patentschriften Nr. 904299, 961 901.50 percent by weight conductive metal powder, 40 German patents nos. 904299, 961 901. 509 688/176 9.65 @ Bundesdruckerei Berlin509 688/176 9.65 @ Bundesdruckerei Berlin
DEU10144A 1962-09-21 1963-09-21 Negative electrode for alkaline batteries Pending DE1201438B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22539462A 1962-09-21 1962-09-21

Publications (1)

Publication Number Publication Date
DE1201438B true DE1201438B (en) 1965-09-23

Family

ID=22844694

Family Applications (1)

Application Number Title Priority Date Filing Date
DEU10144A Pending DE1201438B (en) 1962-09-21 1963-09-21 Negative electrode for alkaline batteries

Country Status (7)

Country Link
AT (1) AT245072B (en)
BE (1) BE637503A (en)
DE (1) DE1201438B (en)
DK (1) DK105815C (en)
FR (1) FR1370297A (en)
GB (1) GB999193A (en)
NL (1) NL298119A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488052A1 (en) * 1980-07-31 1982-02-05 Accumulateurs Fixes Cathode active material for alkaline accumulators - comprising magnetite with added zinc metal or oxide and PTFE binder
KR101778059B1 (en) 2015-11-11 2017-09-14 주식회사 이엠따블유에너지 Zinc-air cell

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE904299C (en) * 1951-09-09 1954-02-18 Accumulatoren Fabrik Ag Process for the production of negative plates for alkaline batteries
DE961901C (en) * 1952-08-31 1957-04-11 Accumulatoren Fabrik Ag Process for the production of negative electrodes for alkaline batteries

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE904299C (en) * 1951-09-09 1954-02-18 Accumulatoren Fabrik Ag Process for the production of negative plates for alkaline batteries
DE961901C (en) * 1952-08-31 1957-04-11 Accumulatoren Fabrik Ag Process for the production of negative electrodes for alkaline batteries

Also Published As

Publication number Publication date
NL298119A (en)
DK105815C (en) 1966-11-14
AT245072B (en) 1966-02-10
FR1370297A (en) 1964-08-21
GB999193A (en) 1965-07-21
BE637503A (en)

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