Sandia Corporation

U.S. Nanocorp, Inc.

Other

The United States of America As Represented by the Department of Energy

Daniel H Doughty

C Jeffrey Brinker

Thomas W Bein

Tongsan D Xiao

Gregory C Frye

David E Reisner

Ronald A Guidotti

Hui Ye

Karin Moller

Erhard T Eisenmann

Thin cathodes are presented, For example, a cathode includes a substrate; and a layer of a nanostructured pyrite active material deposited on the substrate, wherein the layer of the nanostructured pyrite has a thickness in the range from about 1 to about 1000 microns. The cathodes find particular utility in thermal batteries.

Energy storage and conversion devices using thermal sprayed electrodes

Thin electrodes produced by thermal spray techniques are presented, wherein the thermal spray feedstock comprises an active material and a protective barrier coating. In a particularly advantageous feature, the active material feedstock is a metal sulfide, metal selenide, or metal telluride which ordinarily decomposes at thermal spray temperatures or which transforms to a material unsuitable for use as an electrode at thermal spray temperatures. The electrodes find particular utility in thermal batteries.

A process for making carbon film or powder suitable for double capacitor electrodes having a capacitance of up to about 300 F/cm,is disclosed. This is accomplished by treating in aqueous nitric acid for a period of about 5 to 15 minutes thin carbon films obtained by carbonizing carbon-containing polymeric material having a high degree of molecular directionality, such as polyimide film, then heating the treated carbon film in a non-oxidizing atmosphere at a non-graphitizing temperature of at least 350&deg; C. for about 20 minutes, and repeating alternately the nitric acid step and the heating step from 7 to 10 times. Capacitors made with this carbon may find uses ranging from electronic devices to electric vehicle applications.

Carbon activation process for increased surface accessibility in electrochemical capacitors

Coatings and sensors having both steric and chemical selectivity. Controlled porosity provides the steric selectivity, whereas chemically tailored film properties, using controlled composition or modification by coupling agents, chemical species replacement, or chemical species within pores, provide the chemical selectivity. Single or multiple layers may be provided.

Coatings with controlled porosity and chemical properties

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Albuquerque, NM, United States of America

Daniel H Doughty