MATERIALS FOR HIGH-TEMPERATURE Li-Al/FeSx SECONDARY BATTERIES*

Battles, J. E.

doi:10.1016/b978-0-12-665050-1.50036-1

Cited by 6 publications

(10 citation statements)

References 8 publications

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“…A comparison (2) o.f the free energies of formation of Li3N and Li20 with those of oxide and mtride ceramics indicated that the following should be stable at the cell operating temperature: BeO, MgO, Y208, CaO, BN, A1N, and SiaN4. Several of these materials haCe been used to prepare various types of separators for small-scale and engineering-size battery cells (2,(4)(5)(6)(7)(8)(9)(10)(11)(12)(13). Based on current or projected cost, availability, and the ease of fabrication in forms suitable for separators, BN and NIgO have attracted the most attention.…”

Section: General Requirements Materials and Types Of Separatorsmentioning

confidence: 99%

“…Molten LiC1-KC1 electrolyte (eutectic melting point 352~ is used in these cells. The overall reaction that takes place in the Li-A1/FeSx battery upon discharge can be written as (2) 2x(Li-A1) ~ FeSx-~ xLi2S -}-Fe -? 2xA1 [1] where the composition of the positive electrode at complete discharge of a stoichiometric cell would be Li2S and Fe.…”

mentioning

confidence: 99%

“…A key component of these battery cells is the electrode separator; this serves primarily to maintain electrical and mechanical separation of the electrodes while permitting ionic transport through the pores of the separator, which are filled with electrolyte. In recent years, several laboratoryand engineering-size Li-A1/FeS battery cells have been operated to study the performance of the separators (2,(4)(5)(6)(7)(8)(9)(10)(11)(12)(13). In the present paper, the general re-quirements, candidate materials and types, and in-cell test conditions for the separators are reviewed.…”

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confidence: 99%

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Ceramic Separators for Li‐Al/Iron Sulfide Batteries

Bandyopadhyay¹,

Swaroop²,

Battles³

1982

J. Electrochem. Soc.

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Woven fabric, felt, powder, and sintered ceramic separators have been considered for application in normalLi‐normalAl/FeSx cells. The performances of representative samples of these separator types in laboratory‐ and engineering‐size normalLi‐normalAl/normalFeS cells were analyzed to correlate in a quantitative manner the relationship among separator characteristics (tortuosity,thickness, and porosity), current density, and active material utilization. A similar approach can be used to develop a quantitative relationship for larger size cells from a limited number of well‐characterized experiments and should be of considerable value to cell designers. The results from post‐test examinations of laboratory‐size cells indicate that BN felt, normalMgO powder, and sintered normalMgO separators are chemically and mechanically stable in the cell environment.

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Section: General Requirements Materials and Types Of Separatorsmentioning

confidence: 99%

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Ceramic Separators for Li‐Al/Iron Sulfide Batteries

Bandyopadhyay¹,

Swaroop²,

Battles³

1982

J. Electrochem. Soc.

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“…The overall reaction that takes place in the Li-A1/FeSx (x = 1 or 2) cell on discharge can be written as (2) 2xLi-A1 + FeSx--> xLi2S + Fe + 2xA1 [1] where the composition of the positive electrode at complete discharge of a stoichiometric celI would be Li2S and Fe. The reverse of these reactions occurs on recharging the cell.…”

mentioning

confidence: 99%

“…tive positive current collector poses a much more difficult problem (2)(3)(4)(5). This is particularly true for FeSf-type electrodes, in which the sulfur activity is considerably higher than that in FeS-type electrodes.…”

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Ceramic‐Coated Positive Current Collectors for Li ‐ Al / LiCl ‐ KCl / FeS2 Batteries

Bandyopadhyay

1981

J. Electrochem. Soc.

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Several electronically conducting ceramic and metallic coatings were investigated to determine their potential for use as current collectors in the positive electrodes of Li‐Al/molten normalLiCl‐normalKCl/FeS2 battery cells. Static and in‐cell corrosion tests in laboratory‐scale cells were performed; the static tests were considerably more severe than the in‐cell tests. Chemical vapor deposited (CVD) normalTiC and normalTiN coatings on inexpensive iron‐based substrates showed significant promise in both tests. Analysis of the results led to the recommendation that the coating quality and thickness, the substrate type, the coating procedure, the design of the cell components, and the electrochemical conditions be optimized to achieve maximum coating stability in long‐term operation of normalLi‐normalAl/FeS2 cells.

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