FR2005163A1 - Improved negative plate - for alkaline accumulator cells - Google Patents

Improved negative plate - for alkaline accumulator cells

Info

Publication number
FR2005163A1
FR2005163A1 FR6909017A FR6909017A FR2005163A1 FR 2005163 A1 FR2005163 A1 FR 2005163A1 FR 6909017 A FR6909017 A FR 6909017A FR 6909017 A FR6909017 A FR 6909017A FR 2005163 A1 FR2005163 A1 FR 2005163A1
Authority
FR
France
Prior art keywords
hydroxide
raney nickel
nickel
negative plate
dsk
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.)
Withdrawn
Application number
FR6909017A
Other languages
French (fr)
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.)
Siemens AG
VARTA AG
Original Assignee
Siemens AG
VARTA AG
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 Siemens AG, VARTA AG filed Critical Siemens AG
Publication of FR2005163A1 publication Critical patent/FR2005163A1/en
Withdrawn legal-status Critical Current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
    • H01M4/24—Electrodes for alkaline accumulators
    • H01M4/242—Hydrogen storage 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
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/98—Raney-type 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
    • 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
    • H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
    • 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
    • H01M4/383—Hydrogen absorbing alloys
    • 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
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

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

Abstract

Twin-frame sintered nickel-iron electrode is used as negative plate. It can be combined with various known types of positive plate. The design is based on the DSK catalysing electrode, of Raney nickel alloy, which is said to yield enhanced specific capacity. This being attributed to the complete oxidation of nickel to the hydroxide during discharge by electrochemical effects. It has however been established that the subsequent reduction of the hydroxide proceeds with difficulty, if aging has taken place, unless high temperatures are employed. Easier reduction at ambient temperature, and thus further increases in specific capacity and power to weight ratio is effected by alloying the Raney nickel with 2 to 30% by weight of iron, which inhibits recrystallisation and consequent aging of the hydroxide. Typical electrodes showed specific capacities 1.7 time greater than those based on pure Raney nickel. The fabrication of the modified DSK electrodes, according to prior processes, is described.
FR6909017A 1968-03-30 1969-03-27 Improved negative plate - for alkaline accumulator cells Withdrawn FR2005163A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1771085 1968-03-30

Publications (1)

Publication Number Publication Date
FR2005163A1 true FR2005163A1 (en) 1969-12-05

Family

ID=5700752

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6909017A Withdrawn FR2005163A1 (en) 1968-03-30 1969-03-27 Improved negative plate - for alkaline accumulator cells

Country Status (1)

Country Link
FR (1) FR2005163A1 (en)

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Legal Events

Date Code Title Description
ST Notification of lapse