Glass-graphite bonding system for sodium-sulphur batteries and b

Details Glass-graphite bonding system for sodium-sulphur batteries and b Glass-graphite bonding system for sodium-sulphur batteries and b

1991-03-11

1992-07-28

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Fluid active material or two-fluid electrolyte combination...

Active material in molten state

424185, 296231, H01M 208

Patent

active

051340445

ABSTRACT:
The present invention is a method for improving the quality of glass to graphite bonds and seals used in high power density batteries, such as sodium-sulfur batteries. The method comprises depositing an interlayer of a two-element compound formed from a group IVa or Va metallic element and a group Vb or VIb nonmetallic element, preferably titanium nitride, between the glass and graphite. The resultant structure is mechanically strong, and forms a leak-free bond when used in such batteries. The invention further comprises batteries including seals formed by the disclosed method.

REFERENCES:
patent: 3982957 (1976-09-01), Jones et al.
patent: 4245012 (1981-01-01), Mikkor
patent: 4287664 (1981-09-01), Chatterji et al.
patent: 4290192 (1981-09-01), Elkins
patent: 4999262 (1991-03-01), Prince

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