Patents Represented by Attorney Cornelius F. O'Brien

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  • Vitreous solid lithium cation conductive electrolyte
    Patent number: 4465746
    Abstract: A solid state electrolyte for solid state cell systems comprising a vitreous lithium cation conductor of the composition SiS.sub.2, xLi.sub.2 S, yLiI where x is from 0.8 to 1.5, where y is from 0 to about 2 and wherein said composition has a conductivity of at least 0.75.times.10.sup.-4 ohm.sup.-1 cm.sup.-1 at 25.degree. C.
    Type: Grant
    Filed: June 29, 1983
    Date of Patent: August 14, 1984
    Assignee: Union Carbide Corporation
    Inventor: James R. Akridge
  • Crystalline solid lithium cation conductive electrolyte
    Patent number: 4465745
    Abstract: A solid state electrolyte for solid state cell systems comprising a crystalline cation conductor of the composition SiS.sub.2, Li.sub.2 S, such as crystalline Li.sub.2 SiS.sub.3.
    Type: Grant
    Filed: June 29, 1983
    Date of Patent: August 14, 1984
    Assignee: Union Carbide Corporation
    Inventor: James R. Akridge
  • Alkali metal or alkaline earth metal compound additive for manganese dioxide-containing nonaqueous cells
    Patent number: 4465747
    Abstract: A nonaqueous cell employing a manganese dioxide-containing solid cathode having a minor amount of an alkali metal or an alkaline earth metal additive such as Li.sub.2 SiO.sub.3, Li.sub.2 B.sub.4 O.sub.7, Li.sub.2 MoO.sub.4, Li.sub.3 PO.sub.4 or Li.sub.2 WO.sub.4 to suppress the build-up of internal impedance in the cell during storage and discharge that may occur with electrolyte degradation.
    Type: Grant
    Filed: June 29, 1983
    Date of Patent: August 14, 1984
    Assignee: Union Carbide Corporation
    Inventor: William P. Evans
  • Safety blade for severing stretchable film
    Patent number: 4450996
    Abstract: A severing blade comprising a plurality of spaced-apart extended members, each of said extended members having a blunt upper edge extremity and at least one side-extended tooth with a piercing tip disposed below the blunt upper edge extremity and in the plane of the blade so that a stretchable film transversely pulled over the severing edge will be snagged on the side-projected teeth thereby causing a segment of the film to be severed.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: May 29, 1984
    Assignee: Union Carbide Corporation
    Inventor: Ewald A. Kamp
  • Lithium halide additives for nonaqueous cell systems
    Patent number: 4450214
    Abstract: A lithium nonaqueous cell employing a FeS.sub.2 -containing or MnO.sub.2 -containing cathode and an organic electrolyte and wherein a lithium halide, such as LiCl, is added to the cell to improve the voltage level on pulse discharge of the cell particularly at low temperatures and/or to stabilize the open circuit voltage.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: May 22, 1984
    Assignee: Union Carbide Corporation
    Inventor: Stephen G. Davis
  • Non-aqueous electrochemical cell
    Patent number: 4444855
    Abstract: The invention relates to the use in a non-aqueous electrochemical cell of a conductive electrolyte comprising an ionizing solute dissolved in a mixture of a selected halide of an element of Group IV to Group VI of the Periodic Table and a cosolvent. The selected halide serves the dual function of acting as a solvent for the solute and as the active cathode depolarizer of the cell.
    Type: Grant
    Filed: May 29, 1974
    Date of Patent: April 24, 1984
    Assignee: Union Carbide Corporation
    Inventors: George E. Blomgren, Marvin L. Kronenberg
  • Nonaqueous cell employing an anode having a boron-containing surface film
    Patent number: 4440836
    Abstract: A nonaqueous cell employing a liquid active cathode, such as thionyl chloride, and an anode, such as lithium, coated with a boron-containing surface film that will substantially prevent excessive anode passivation during storage or discharge of the cell.
    Type: Grant
    Filed: December 14, 1982
    Date of Patent: April 3, 1984
    Assignee: Union Carbide Corporation
    Inventor: John C. Bailey
  • Safety blade for severing stretchable film
    Patent number: 4426029
    Abstract: A severing blade comprising a plurality of spaced-apart sharp piercing teeth disposed below and between a plurality of spaced-apart blunt projections, the blunt projections being adapted to stretch and/or thin a segment of a sheet material, such as stretchable film, to be severed.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: January 17, 1984
    Assignee: Union Carbide Corporation
    Inventor: Ewald A. Kamp
  • Liquid cathode cells with a glass fiber separator
    Patent number: 4421834
    Abstract: A nonaqueous cell employing a liquid cathode, such as an oxyhalide, an active anode, such as lithium, a cathode collector, such as carbon and/or graphite, and a separator between said anode and said collector and wherein said separator comprises a uniform mixture of 85 to 95 weight percent glass fibers having a substantially uniform size and 15 to 5 weight percent binder, such as polyvinyl alcohol.
    Type: Grant
    Filed: July 1, 1982
    Date of Patent: December 20, 1983
    Assignee: Union Carbide Corporation
    Inventor: Ronald L. Zupancic
  • Nonaqueous cells employing heat-treated MnO.sub.2 cathodes and a PC-DME-LiCF.sub.3 SO.sub.3 electrolyte
    Patent number: 4419423
    Abstract: A nonaqueous cell comprising an active metal anode such as lithium, a manganese dioxide-containing cathode which contains less than 1 weight percent water in the manganese dioxide and a liquid organic electrolyte comprising lithium trifluoromethane sulfonate (LiCF.sub.3 SO.sub.3) dissolved in propylene carbonate (PC) and dimethoxyethane (DME).
    Type: Grant
    Filed: June 2, 1982
    Date of Patent: December 6, 1983
    Assignee: Union Carbide Corporation
    Inventor: Violeta Z. Leger
  • Sulfide-containing cathode for nonaqueous cells
    Patent number: 4419422
    Abstract: A sulfide-containing cathode for nonaqueous cells such as AgBiS.sub.2, Co.sub.2 Bi.sub.2 S.sub.5, CoBi.sub.2 S.sub.4 and FeSb.sub.2 S.sub.4.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: December 6, 1983
    Assignee: Union Carbide Corporation
    Inventors: Violeta Z. Leger, William P. Evans
  • Silver oxide cells
    Patent number: 4405698
    Abstract: The silver oxide cell is constructed so as to dispose, at the cathode side, of a cathodic material layer 3 composed of AgO and a reducing layer 4 for reducing AgO and, at the anode side, of an anodic material layer 5 and an electrolyte layer 6 in a container composed of a cathode can 1, an anode cap 2 and a gasket 8. The cathodic material layer 3 is covered at the surface thereof with a reduced layer 9 formed by the reduction of AgO.The silver oxide cell enables a discharge on the single voltage level as in Ag.sub.2 O cells, and is appropriate for large-scale production and favorable in workability.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: September 20, 1983
    Assignee: Sony Eveready Inc.
    Inventor: Tooru Nagaura
  • Non-aqueous electrochemical cell
    Patent number: 4400453
    Abstract: The invention relates to the use in a non-aqueous electrochemical cell of an electrolyte comprising a solute dissolved in a solvent which is an oxyhalide of an element of Group V or Group VI of the Periodic Table. The oxyhalide solvent serves the dual function of acting as the solvent for the electrolyte salt and as the active cathode depolarizer of the cell.
    Type: Grant
    Filed: February 4, 1974
    Date of Patent: August 23, 1983
    Assignee: Union Carbide Corporation
    Inventors: George E. Blomgren, Marvin L. Kronenberg
  • Solid cathode comprising a lead fluoride/tin fluoride compound
    Patent number: 4399204
    Abstract: A nonaqueous cell employing a solid cathode compound of lead fluoride and tin fluoride such as PbSnF.sub.4.
    Type: Grant
    Filed: June 30, 1981
    Date of Patent: August 16, 1983
    Assignee: Union Carbide Corporation
    Inventor: Milton B. Clark
  • Complex metal sulfide cathodes for nonaqueous cells
    Patent number: 4390604
    Abstract: A solid cathode for nonaqueous cells comprising complex metal sulfides such as PbFeS.sub.2, Co.sub.0.5 Fe.sub.1.5 S.sub.2, Co.sub.1.5 Fe.sub.0.5 S.sub.2 and CoFeS.sub.2.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: June 28, 1983
    Assignee: Union Carbide Corporation
    Inventors: William P. Evans, Violeta Z. Leger
  • Nonaqueous cell having an antimony trisulfide cathode
    Patent number: 4385103
    Abstract: A nonaqueous cell employing an anode such as lithium, a liquid electrolyte based on organic solvents and a cathode of antimony trisulfide.
    Type: Grant
    Filed: September 29, 1981
    Date of Patent: May 24, 1983
    Assignee: Union Carbide Corporation
    Inventors: Demetrios V. Louzos, George E. Blomgren
  • Cell having mixed solid cathode materials for controlling cell expansion on discharge
    Patent number: 4379815
    Abstract: A galvanic cell employing a consumable anode such as lithium, a cathode that expands during cell discharge and an electrolyte, wherein the improvement is that the cathode is composed of a physical mixture of at least two solid active materials having different expansion characteristics on cell discharge and selected such that the cathode mixture has a volumetric expansion substantially equal to the volumetric contraction of the anode thereby providing a cell that will have a substantially constant physical configuration during discharge.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: April 12, 1983
    Assignee: Union Carbide Corporation
    Inventor: Gerald F. Bubnick
  • Organic solvent-treated manganese dioxide-containing cathodes
    Patent number: 4379817
    Abstract: A manganese dioxide-containing cathode comprising heat-treated manganese dioxide, a binder and a conductive agent and wherein the walls of the pores of the cathode are coated with a vapor deposited organic solvent thereby reducing its affinity for absorbing moisture when exposed to a moisture environment for a fixed time period. The invention also relates to a method for producing the organic solvent treated manganese dioxide-containing cathode.
    Type: Grant
    Filed: December 29, 1981
    Date of Patent: April 12, 1983
    Assignee: Union Carbide Corporation
    Inventor: Akiya Kozawa
  • Alkaline cell
    Patent number: 4370395
    Abstract: Alkaline cell comprising a cathode material, an alkaline electrolyte and an anode material, which are sealed in a container, said cathode material containing an Ni- and Ag-containing oxide wherein the trivalent nickel ion (Ni.sup.3+) and the monovalent silver ion (Ag.sup.+) are present in a substantially equimolar ratio.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: January 25, 1983
    Assignee: Union Carbide Corporation
    Inventors: Toru Nagaura, Takayuki Aita
  • Solid state electrolytes
    Patent number: RE31365
    Abstract: A solid state electrolyte comprising an ionically conducting product of a fused ternary mixture of lead fluoride, an alkali salt of sodium, potassium, rubidium or cesium in a range of 0.1 to 15.0 mole percent and a fluoride, nitrate or sulfate of magnesium, calcium, strontium or barium in a range of between 1 and 40 mole percent.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: August 30, 1983
    Assignee: Union Carbide Corporation
    Inventor: Geoffrey W. Mellors