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Title: Characterization of the LiSi/CsBr-LiBr-KBr/FeS(2) System for Potential Use as a Geothermal Borehole Power Source

Abstract

We are continuing to study the suitability of modified thermal-battery technology as a potential power source for geothermal borehole applications. Previous work focused on the LiSi/FeS{sub 2} couple over a temperature range of 350 C to 400 C with the LiBr-KBr-LiF eutectic, which melts at 324.5 C. In this work, the discharge processes that take place in LiSi/CsBr-LiBr-KBr eutectic/FeS{sub 2} thermal cells were studied at temperatures between 250 C and 400 C using pelletized cells with immobilized electrolyte. The CsBr-LiBr-KBr eutectic was selected because of its lower melting point (228.5 C). Incorporation of a quasi-reference electrode allowed the determination of the relative contribution of each electrode to the overall cell polarization. The results of single-cell tests and limited battery tests are presented, along with preliminary data for battery stacks tested in a simulated geothermal borehole environment.

Authors:
;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
13964
Report Number(s):
SAND99-1702C
TRN: AH200135%%508
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: 1999 Joint International Meeting (196th Meeting of the Electrochemical Society), Honolulu, HI (US), 10/17/1999--10/22/1999; Other Information: PBD: 18 Oct 1999
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 15 GEOTHERMAL ENERGY; GEOTHERMAL WELLS; THERMAL BATTERIES; BOREHOLES; ELECTRODES; EUTECTICS; MELTING POINTS; POWER SUPPLIES; LITHIUM SILICIDES; IRON SULFIDES; LITHIUM BROMIDES; POTASSIUM BROMIDES; CESIUM BROMIDES; PERFORMANCE; Geothermal Legacy

Citation Formats

GUIDOTTI, RONALD A, and REINHARDT, FREDERICK W. Characterization of the LiSi/CsBr-LiBr-KBr/FeS(2) System for Potential Use as a Geothermal Borehole Power Source. United States: N. p., 1999. Web.
GUIDOTTI, RONALD A, & REINHARDT, FREDERICK W. Characterization of the LiSi/CsBr-LiBr-KBr/FeS(2) System for Potential Use as a Geothermal Borehole Power Source. United States.
GUIDOTTI, RONALD A, and REINHARDT, FREDERICK W. 1999. "Characterization of the LiSi/CsBr-LiBr-KBr/FeS(2) System for Potential Use as a Geothermal Borehole Power Source". United States. https://www.osti.gov/servlets/purl/13964.
@article{osti_13964,
title = {Characterization of the LiSi/CsBr-LiBr-KBr/FeS(2) System for Potential Use as a Geothermal Borehole Power Source},
author = {GUIDOTTI, RONALD A and REINHARDT, FREDERICK W},
abstractNote = {We are continuing to study the suitability of modified thermal-battery technology as a potential power source for geothermal borehole applications. Previous work focused on the LiSi/FeS{sub 2} couple over a temperature range of 350 C to 400 C with the LiBr-KBr-LiF eutectic, which melts at 324.5 C. In this work, the discharge processes that take place in LiSi/CsBr-LiBr-KBr eutectic/FeS{sub 2} thermal cells were studied at temperatures between 250 C and 400 C using pelletized cells with immobilized electrolyte. The CsBr-LiBr-KBr eutectic was selected because of its lower melting point (228.5 C). Incorporation of a quasi-reference electrode allowed the determination of the relative contribution of each electrode to the overall cell polarization. The results of single-cell tests and limited battery tests are presented, along with preliminary data for battery stacks tested in a simulated geothermal borehole environment.},
doi = {},
url = {https://www.osti.gov/biblio/13964}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Oct 18 00:00:00 EDT 1999},
month = {Mon Oct 18 00:00:00 EDT 1999}
}

Conference:
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