Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
Patent
1986-05-12
1988-02-09
Silbaugh, Jan H.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Include electrolyte chemically specified and method
264104, 264122, 429189, 429191, 429192, 501153, H01M 810, H01M 800, C04B 3510, C04B 3516
Patent
active
047241918
ABSTRACT:
Hydronium bonded polycrystalline shaped articles may be produced by the simple expedient of selecting a hydronium containing powder prepared by one of a plurality of prior art methods and then intermingling the hydronium powder with ortho-phosphoric acid to obtain a viscous mixture (resembling the consistency of toothpaste). The mixture is then formed into a predetermined shape, for example a disc or tube, and the shaped polycrystalline ceramic is allowed to cure. Curing may take place at an elevated temperature below 100.degree. C. for approximately 3 hours either as a step subsequent to forming, or as part of the forming step in 30 minutes at 120.degree. C. The result is bonded hydrogen conducting - hydronium, H.sub.3 O+, solid rigid structure with a smooth finish copying the mold from which it was shaped. Specifically, the hydronium containing powders are selected from the group of poly antimonic acid and precursor powders generally known as Nasicons and preferably being selected from the group of powders consisting of sodium .beta./.beta."-alumina, sodium/potassium .beta./.beta."-alumina, sodium zirpsios, Gasicon and Yasicon.
REFERENCES:
patent: 3446677 (1969-05-01), Tennenhouse
Ahmad Aftab
Canaday Jon D.
Hanson Albert J.
Kuriakose Areekattuthazhayil K.
Wheat Thomas A.
McCarthy Neil M.
Minister of Energy Mines & Resources
Silbaugh Jan H.
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