Chemistry: electrical current producing apparatus – product – and – Fluid active material or two-fluid electrolyte combination... – Active material in molten state
Patent
1975-11-26
1977-07-26
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Fluid active material or two-fluid electrolyte combination...
Active material in molten state
H01M 1004
Patent
active
040384640
ABSTRACT:
A rechargeable galvanic battery which contains liquid sodium, as the negative electro-chemically active material, and liquid sulfur, as the positive electro-chemically active material, and a ceramic solid electrolyte, which is capable of conducting sodium ions. The sodium is completely absorbed in a fine-pored metal felt or mat. The sulfur is completely absorbed in a graphite felt or mat. The metal felt has open pores which face toward the solid electrolyte. The pore structure of the metal felt is undisturbed even in the transition area between the metal felt and the solid electrolyte. The metal felt fills the entire anode space of the battery. At least at the operating temperature of the battery, an intimate contact over a large surface area exists between the metal felt and the solid electrolyte. The maximum distance between the metal felt and the solid electrolyte is in the order of the magnitude of the pore width of the metal felt.
REFERENCES:
patent: 3915741 (1975-10-01), Kogiso et al.
patent: 3922176 (1975-11-01), Robinson et al.
patent: 3932195 (1976-01-01), Evans et al.
Baukal Werner
Knodler Reinhard
Kuhn Wolfgang Hermann
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