Ian D Raistrick, Age 7843 La Rancheria, Carmel Valley, CA 93924

5543025, Aug 6, 1996

Jan 30, 1995

8/381609

Fernando H. Garzon - Sante Fe NM
Brandon W. Chung - Los Alamos NM
Ian D. Raistrick - Los Alamos NM
Eric L. Brosha - Los Alamos NM

The Regents of the University of California, Office of Technology
Transfer - Alameda CA

G01N 2726

204425

Solid state oxygen sensors are provided with a yttria-doped zirconia as an electrolyte and use the electrochemical oxygen pumping of the zirconia electrolyte. A linear relationship between oxygen concentration and the voltage arising at a current plateau occurs when oxygen accessing the electrolyte is limited by a diffusion barrier. A diffusion barrier is formed herein with a mixed electronic and oxygen ion-conducting membrane of lanthanum-containing perovskite or zirconia-containing fluorite. A heater may be used to maintain an adequate oxygen diffusion coefficient in the mixed conducting layer.

4315059, Feb 9, 1982

Jul 18, 1980

6/170254

Ian D. Raistrick - Menlo Park CA
Jaime Poris - Portola Valley CA
Robert A. Huggins - Stanford CA

The United States of America as represented by the United States
Department of Energy - Washington DC

H01M 636

429112

Lithium-based cells are promising for applications such as electric vehicles and load-leveling for power plants since lithium is very electropositive and light weight. One type of lithium-based cell utilizes a molten salt electrolyte and is operated in the temperature range of about 400. degree. -500. degree. C. Such high temperature operation accelerates corrosion problems and a substantial amount of energy is lost through heat transfer. The present invention provides an electrochemical cell (10) which may be operated at temperatures between about 100. degree. -170. degree. C. Cell (10) comprises an electrolyte (16), which preferably includes lithium nitrate, and a lithium or lithium alloy electrode (12).

4876115, Oct 24, 1989

Mar 3, 1988

7/163672

Ian D. Raistrick - Los Alamos NM

United States Department of Energy - Washington DC

H01M 486

427115

A gas reaction fuel cell may be provided with a solid polymer electrolyte membrane. Porous gas diffusion electrodes are formed of carbon particles supporting a catalyst which is effective to enhance the gas reactions. The carbon particles define interstitial spaces exposing the catalyst on a large surface area of the carbon particles. A proton conducting material, such as a perfluorocarbon copolymer or ruthenium dioxide contacts the surface areas of the carbon particles adjacent the interstitial spaces. The proton conducting material enables protons produced by the gas reactions adjacent the supported catalyst to have a conductive path with the electrolyte membrane. The carbon particles provide a conductive path for electrons. A suitable electrode may be formed by dispersing a solution containing a proton conducting material over the surface of the electrode in a manner effective to coat carbon surfaces adjacent the interstitial spaces without impeding gas flow into the interstitial spaces.

4405416, Sep 20, 1983

Sep 15, 1981

6/302337

Ian D. Raistrick - Menlo Park CA
Jaime Poris - Portola Valley CA
Robert A. Huggins - Stanford CA

C25C 302
H01M 636
H01M 814

204 68

Lithium-based cells are promising for applications such as electric vehicles and load-leveling for power plants since lithium is very electropositive and light weight. One type of lithium-based cell utilizes a molten salt electrolyte and is operated in the temperature range of about 400. degree. -500. degree. C. Such high temperature operation accelerates corrosion problems and a substantial amount of energy is lost through heat transfer. The present invention provides an electrochemical cell (10) which may be operated at temperatures between about 100. degree. -170. degree. C. Cell (10) comprises an electrolyte (16), which preferably includes lithium nitrate, and a lithium or lithium alloy electrode (12).

4325611, Apr 20, 1982

Dec 26, 1979

6/106547

Robert A. Huggins - Stanford CA
Ian D. Raistrick - Menlo Park CA

Stanford University - Stanford CA

G02F 117
G02F 123
C09K 300

350357

Electrochromic material for an electro-optic display includes an oxide of at least one transition metal having a structure related to a hexagonal tungsten bronze structure whereby ions of an electro-active material readily diffuse through the lattice structure. In a display the electrochromic material is positioned between two electrodes with an electrolyte between and contacting the electrochromic material and one electrode which comprises the electro-active material.

4340652, Jul 20, 1982

Jul 30, 1980

6/173554

Ian D. Raistrick - Menlo Park CA
Ned A. Godshall - Stanford CA
Robert A. Huggins - Stanford CA

The United States of America as represented by the United States
Department of Energy - Washington DC

H01M 440
H01M 636

429112

Lithium-based cells are promising for applications such as electric vehicles and load-leveling for power plants since lithium is very electropositive and of light weight. One type of lithium-based cell utilizes a molten salt electrolyte and normally is operated in the temperature range of about 350. degree. -500. degree. C. Such high temperature operation accelerates corrosion problems. The present invention provides an electrochemical cell in which lithium is the electroactive species. The cell has a positive electrode which includes a ternary compound generally represented as Li-M-O, wherein M is a transition metal. Corrosion of the inventive cell is considerably reduced.