Volumetric Properties of Lithium–Lead Melts

Khairulin, R. A.; Abdullaev, R. N.; Stankus, S. V.; Agazhanov, A. Sh.; Savchenko, I. V.

doi:10.1007/s10765-016-2165-7

Cited by 19 publications

(7 citation statements)

References 18 publications

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“…which connects the molar fraction x Li to the mass concentration ρ Li and the density ρ, we reexpress the experimental measurements of Ref. [16] as ρ = ρ(ρ Li ). This is done graphically in Appendix A, and Fig.…”

Section: A Set-up and Evolution Lawsmentioning

confidence: 93%

“…For Li-Pb alloys, Refs. [16,17] provide experimental data for the density ρ = ρ(x Li ) of the alloy as a function of the molar fraction x Li of lithium in the alloy. Denoting (M Li , M Pb ) = (6.941, 207.2)×10 −3 kg mol −1 the molar masses of lithium and lead, and using the fundamental relation…”

Section: A Set-up and Evolution Lawsmentioning

confidence: 99%

“…Li Pb cells are unlikely to be commercialized, but they are very well adapted to fundamental studies, mainly because material properties of Li-Pb alloys are well known (these alloys are planned to be used in tritium breeders of nuclear fusion reactors, see Refs. [16,[32][33][34][35]). We discuss here the main material properties of the alloy and explain the hypotheses behind the model used in the present paper.…”

Section: Appendix A: Li-pb Alloys: Materials Properties and Fundamental Evolution Lawsmentioning

confidence: 99%

“…In this study, we suppose that the Li-Pb alloy is at 500 • C. According to the state diagram in Ref. [16] the alloy remains liquid in a wide interval of molar fraction x Li ∈ [0, 60]%. Beyond x Li > 60% solid intermetallic phases form.…”

Section: Appendix A: Li-pb Alloys: Materials Properties and Fundamental Evolution Lawsmentioning

confidence: 99%

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Solutal buoyancy and electrovortex flow in liquid metal batteries

Herreman

Bénard²,

Nore³

et al. 2020

Phys. Rev. Fluids

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Solutal buoyancy has a large impact on the flow of the alloy phase composing the positive electrode in liquid metal batteries. During discharge solutal buoyancy creates a stabilizing stratification, during charge it creates a vigorous solutal convection. In this article we provide new physical understandings of the role of solutal buoyancy during both charge and discharge. In particular we find that during discharge the electrovortex mechanism is in general not strong enough to counter the stabilizing effect of solutal buoyancy, and therefore this mechanism cannot be used to mix the alloy as is sometimes suggested in the literature. We show that the mixing capability of a generic flow in the alloy phase can be estimated by comparing the typical flow magnitude U to two velocity scales: U p and U m . Below U p the flow cannot mix the alloy, and above U m the flow significantly opposes solutal buoyancy. Although we focus on Li||Pb-based batteries, these simple mixing criteria can be used during the discharging phase in other types of liquid batteries. We also present new, fully three-dimensional simulations of solutal convection during the charging cycle. These simulations suggest scaling laws for the magnitude of the convective flow, the time for the onset of solutal convection, and the typical inhomogeneity level in the alloy during charge. We propose physical arguments to explain these scaling laws.

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Section: A Set-up and Evolution Lawsmentioning

confidence: 93%

Section: A Set-up and Evolution Lawsmentioning

confidence: 99%

Section: Appendix A: Li-pb Alloys: Materials Properties and Fundamental Evolution Lawsmentioning

confidence: 99%

Section: Appendix A: Li-pb Alloys: Materials Properties and Fundamental Evolution Lawsmentioning

confidence: 99%

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Solutal buoyancy and electrovortex flow in liquid metal batteries

Herreman

Bénard²,

Nore³

et al. 2020

Phys. Rev. Fluids

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show abstract

“…The linear variation of the density with respect to is obtained from an experimental result (Khairulin et al. 2016), As an alternative to , one can use the solutal expansion coefficient . The kinematic viscosity, , electrical conductivity, , and diffusion coefficient, , are held fixed at their eutectic alloy values, i.e.…”

Section: Modelmentioning

confidence: 99%