scholarly journals Evaluation of two lower-melting electrolytes in lithium silicon/iron disulfide thermal batteries

1991 ◽  
Author(s):  
A T Morella
Keyword(s):  
Silicon Iron ◽  
Lower Melting ◽  
Iron Disulfide ◽  
Thermal Batteries

scholarly journals Nanomaterials in Thermal Backup Current Sources

2021 ◽  
Vol 27 (1) ◽  
pp. 149-156
Author(s):  
V. V. Emtsev ◽  
◽  
S. V. Grishin ◽  
D. I. Maksimov ◽  
Yu. E. Mamontova ◽  
...  
Keyword(s):  
High Energy ◽  
Iron Disulfide ◽  
Thermal Current ◽  
Thermal Batteries ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
Pyrotechnic Mixtures

The current-voltage characteristics of thermal batteries with anodes based on lithium and its alloys, with cathodes made of iron or cobalt disulfides are presented. The electrolyte-melt is a thickened mixture of fluorides, lithium and potassium chlorides, pyrotechnic mixtures of iron, molybdenum, titanium nanopowders. It is shown that the use of a lithium-boron composite and a “thickened lithium” composite is promising as a material for anodes of high-energy thermal current sources, and for cathodes - a mixture based on synthetic iron disulfide.

scholarly journals Iron Disulfide Synthesis for Thermal Batteries Applications

2020 ◽  
pp. 50-53 ◽  
Author(s):  
Gabriel Evangelista Medeiros ◽  
Francisco José Moura ◽  
Rodrigo Fernandes Magalhães de Souza
Keyword(s):  
Current Density ◽  
High Current Density ◽  
High Dispersion ◽  
High Current ◽  
Power Sources ◽  
Iron Disulfide ◽  
Thermal Batteries ◽  
Single Discharge ◽  
Emergency Systems ◽  
Charge Discharge

The necessity for ever more efficient and compact power sources drives the development of more durable and more power-intensive sources. Electrochemical sources include primary batteries that support a single discharge cycle and secondary batteries that support a defined number of charge-discharge cycles. Such sources should be suitable for the intended application, such as emergency systems, military and aerospace apparatus, where they must have long shelf life, high current density and reliability. Thermal batteries work with LiCl-KCl eutectic electrolyte anodes and FeS2 cathodes. A pyrometallurgical synthesis route was studied for roasting reaction between Fe2O3 and vaporized sulfur to obtain FeS2. The results obtained showed a conversion close to 90% and a high dispersion of agglomerates sizes, which disaggregated generate particles suitable for cathode manufacturing.

scholarly journals Monitoring of FES2 reactions using high-temperature XRD coupled with gas chromatography

2019 ◽  
Vol 34 (2) ◽  
pp. 90-96
Author(s):  
K.-A. M. Stirrup ◽  
M. A. Rodriguez ◽  
E. N. Coker ◽  
J. J. M. Griego ◽  
T. M. Anderson
Keyword(s):  
Gas Chromatography ◽  
High Temperature ◽  
Simultaneous Thermal Analysis ◽  
Gas Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Iron Disulfide ◽  
Thermal Batteries ◽  
High Temperature Xrd

High-temperature X-ray diffraction with concurrent gas chromatography (GC) was employed in the study of iron disulfide (FeS2) cathode pellets disassembled from thermal batteries. When FeS2 cathode materials were analyzed in an air environment, reaction of the KCl and LiCl salt phases led to the formation of Li2(SO4) and KFe2S3 phases beginning at ~230 °C. These phases subsequently reacted to generate various forms of potassium iron sulfates in the 280–500 °C range, with the final products resulting in a β-Fe2O3 phase and K2(SO4). Independent simultaneous thermal analysis coupled with mass spectroscopy (MS) augmented the diffraction results and supported the overall picture of FeS2 decomposition. Both gas analysis measurements (i.e. GC and MS) from the independent experiments confirmed the formation of SO2 off-gas species during the breakdown of the FeS2. In contrast, characterization of the same cathode material under inert conditions showed the persistence of the initial FeS2 phase throughout the entire temperature range of analysis.

Nanostructuring of Iron Disulfide Cathode Materials for Enhanced Thermal Batteries

2021 ◽  
Author(s):  
Giuseppe L. Di Benedetto ◽  
Lauren A Morris ◽  
David B. Swanson ◽  
Brian D. Wightman ◽  
Ryan R. Carpenter ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Iron Disulfide ◽  
Thermal Batteries

Historical Note on Thermal Batteries

1890 ◽  
Vol 29 (752supp) ◽  
pp. 12017-12017
Author(s):  
Henri Becquerel
Keyword(s):  
Historical Note ◽  
Thermal Batteries

EFFECT OF ADDITION OF THIRD ELEMENT IN HIGH SILICON-IRON ALLOY

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-133-C8-134
Author(s):  
H. Nakamura ◽  
N. Tsuya ◽  
Y. Saito ◽  
Y. Katsumata ◽  
Y. Harada
Keyword(s):  
Iron Alloy ◽  
Silicon Iron ◽  
High Silicon

MAGNESIL-N

Alloy Digest ◽  
1975 ◽  
Vol 24 (7) ◽  
Keyword(s):  
Shear Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Iron Alloy ◽  
Heat Treating ◽  
Rolling Plane ◽  
Silicon Iron

Abstract MAGNESIL-N is a non-oriented silicon-iron alloy of exceptional magnetic qualities designed for applications involving frequencies of 400 Hertz and higher. It has good permeability in all directions of the rolling plane, and is designed for either punched or sheared laminations with random flux disposition. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on forming and heat treating. Filing Code: Fe-53. Producer or source: Spang Industries Inc..

DURICHLOR 51M

Alloy Digest ◽  
1996 ◽  
Vol 45 (4) ◽  
Keyword(s):  
Compressive Strength ◽  
Corrosion Resistance ◽  
Hydrochloric Acid ◽  
Physical Properties ◽  
Tensile Properties ◽  
Silicon Iron ◽  
Chlorine Gas ◽  
High Silicon

Abstract Durichlor 51M is a high silicon iron for corrosive services, especially in the handling of hydrochloric acid in all concentrations. It is also very resistant to most chlorine gas and many destructive chloride-containing solutions. The alloy is treated at melting by argon ladle degassing. This datasheet provides information on composition, physical properties, hardness, tensile properties, and compressive strength. It also includes information on corrosion resistance as well as machining and joining. Filing Code: FE-109. Producer or source: The Duriron Company Inc.

DURICHLOR 51 SUPERCHLOR

Alloy Digest ◽  
1993 ◽  
Vol 42 (1) ◽  
Keyword(s):  
Compressive Strength ◽  
Corrosion Resistance ◽  
Hydrochloric Acid ◽  
Physical Properties ◽  
Tensile Properties ◽  
Silicon Iron ◽  
Chlorine Gas ◽  
High Silicon

Abstract DURICHLOR 51 SUPERCHLOR is a vacuum treated high silicon iron for corrosive services, especially in the handling of hydrochloric acid in all concentrations. It is also very resistant to most chlorine gas and many destructive chloride-containing solutions. This datasheet provides information on composition, physical properties, hardness, tensile properties, and compressive strength. It also includes information on corrosion resistance as well as machining and joining. Filing Code: FE-98. Producer or source: The Duriron Company Inc.

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