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Novel Design and Fabrication of Thermal Battery Cathodes Using Thermal Spray

Published online by Cambridge University Press:  15 February 2011

Hui Ye ,
Chris Strock ,
T. Danny Xiao ,
Peter R. Strutt ,
David E. Reisner ,
Ronald A. Guidotti  and
Frederick W. Reinhardt
Hui Ye
Affiliation:
US Nanocorp, Inc., North Haven, CT 06473-2342
Chris Strock
Affiliation:
US Nanocorp, Inc., North Haven, CT 06473-2342
T. Danny Xiao
Affiliation:
US Nanocorp, Inc., North Haven, CT 06473-2342
Peter R. Strutt
Affiliation:
US Nanocorp, Inc., North Haven, CT 06473-2342
David E. Reisner
Affiliation:
US Nanocorp, Inc., North Haven, CT 06473-2342
Ronald A. Guidotti
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185-0614
Frederick W. Reinhardt
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185-0614
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Abstract

Li-Alloy/FeS2 thermal batteries are the predominant thermal battery chemistry today. Conventional electrodes are fabricated by cold pressing of powders. A better means of providing thin electrodes would dramatically increase volumetric and gravimetric energy densities and cost efficiency of thermal batteries. In this study, experiments were conducted on fabricating the cathode via high-velocity oxygen-fuel (HVOF) and dc-arc plasma thermal spray technique. The deposited films were characterized by cross-section examination using Scanning Electron Microscopy (SEM) and X-ray Diffraction. The thermal decomposition of pyrite was suppressed by a proprietary additive. The electrochemical test results showed that pyrite cathodes prepared by dc-arc plasma spraying with additives demonstrated better performance compared traditional pressed-powder electrodes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 548: Symposia EE – Solid State Ionics V , 1998 , 701
Copyright
Copyright © Materials Research Society 1999

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References

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