Classifications

• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C23/00—Alloys based on magnesium
• • 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
  • H01M4/46—Alloys based on magnesium or aluminium
• • 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

Definitions

• PatentedApr. 26, 1960 alkaline-earth metal, or ammonium bromide electrolyte, an anode liner and a carbon current collector.
• the pres- 2,934,'583 ent invention specifically relates to an impgoivement in the anode of such a cell whereby the delay action is ANODE FOR MAGNESIUM PRIMARY CELLS 6 substantially reduced. Provision of such an anode is John A. Stevens, Midland, Micln, assignor to The Dow accomplished by providing a magnesium alloy containing Chemical Company, Midland, Mich., a corporation of from 0.03 to 1.7 percent indium, preferably from 0.1 Delaware to 0.2 percent indium.
• the indium is added in conv ,ventional alloyin techniques to the alloy melt and in No Drawmg siiir l i rfi i irr igi 1958 a conventional riranner, theresulting material settled, poured, pickled, extruded, rolled, or cast to form the 6 Claimsdesired style and shape of anode.
• Various of the wellknown magnesium anodes are improved by the addition of indium thereto.
• Representative alloy materials which This invention relates to an improved anode for use 15 are Suitable are those magnesium-base alloys containing ina p y magnesium battery cell whereby thenormai at least 80 percent, and preferably 90 percent magdeieyed action usually resulting from the employment nesi-um, containing from 1 to 12 percent aluminum, from of such a battery cell is decreased.
• ut i ing m gne i a an anode for a P y Cell is The following examples are given to illustrate the that the cells do not always attain full working voltage anodes of the present invention, but are not, to be conimmediately on attempting to reuse them following a rest ed as limitin the invention thereto: "period.
• This delayed action may vary from 0 to as much as 100 seconds or more depending upon the'specific com- E l 1 position of the components of the cell, the amount of use that has been made of the cell, the intervening resting Two alloy compositions, one of which contains 3 perperiod, and the age of the cell.
• Another object of the 40 dioxide, 3 percent barium chrom-ate and 6 percent acetylpresent invention is to provide such a magnesium anode ene black, and an electrolyte containing 250 grams per material for primary cells containing from 0.03 to 1.7 liter of magnesium bromide and 0.36 gram per liter of percent indium alloyed therein. Other objects will besodium chromate were employed. Diiferent cells concome apparent hereinafter.
• These anodes were employed with an electrolyte consisting of 400 grams per liter of magnesium bromide, and 0.36 gram per liter of sodium chromate solution.
• the cathode mix was 87 percent manganese dioxide, 3 percent barium ch-romate, percent acetylene black and 0.25 percent magnesium powder.
• a magnesium battery anode comprising: from 1 to 12 percent aluminum, 0.0 to 3.0 percent zinc, 0.0 to 0.5 percent calcium, 0.03 to 1.7 percent indium, balance magnesium.
• a magnesium battery anode comprising: from 1 to 12 percent aluminum, 0.0 to 3.0 percent zinc, 0.0 to 0.5 percent calcium, 0.03 to 1.7 percent indium, .less than 0.005 percent iron, less than 0.002 percent nickel, less than 0.6 percent manganese, the balance being magnesium.
• a magnesium battery which includes a cathode of manganese dioxide mixed with a carbon, a magnesium anode, a bromide electrolyte, and a carbon current collector, the improvement which comprises: providing said magnesium anode having 0.03 to 1.7 percent indium alloyed therein.
• a magnesium battery which includes a cathode of manganese dioxide mixed with carbon, a magnesium anode, a bromide electrolyte, and a carbon current collector, the improvement which comprises: providing an anode which includes from 1 to 12 percent aluminum, 0.0 to 3.0 percent zinc, 0.0 to 0.5 percent calcium, 0.03 to 1.7 percent indium, the balance being magnesium.
• a magnesium battery which includes a cathode of manganese dioxide mixed with carbon, 2. magnesium anode, a bromide electrolyte, and a carbon current collector, the improvement which comprises: providing an anode which includes: from 1 to 12 percent aluminum, 0.0 to 3.0 percent zinc, 0.0 to 0.5 percent calcium, 0.03 to 1.7 percent indium, less than 0.005 percent iron, less than 0.002 percent nickel, less than 0.6 percent manganese, the balance being magnesium.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Mechanical Engineering (AREA)
• Metallurgy (AREA)
• Organic Chemistry (AREA)
• Battery Electrode And Active Subsutance (AREA)
• Primary Cells (AREA)
• Prevention Of Electric Corrosion (AREA)

Priority Applications (4)

Applications Claiming Priority (4)

Publications (1)

Family

ID=73039724

Family Applications (1)

Country Status (4)

Cited By (10)

Families Citing this family (3)

Citations (3)

• 0
  • CA CA636116A patent/CA636116A/en not_active Expired
• 1958
  • 1958-02-13 US US714964A patent/US2934583A/en not_active Expired - Lifetime
• 1959
  • 1959-12-31 GB GB44433/60A patent/GB923066A/en not_active Expired
• 1960
  • 1960-02-09 JP JP380660A patent/JPS3623964B1/ja active Pending

Patent Citations (3)

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