Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
Patent
1979-07-02
1980-09-16
Prescott, Arthur C.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Include electrolyte chemically specified and method
204195M, 204195G, 204195S, 252520, 252521, 429193, H01M 1039
Patent
active
042230772
ABSTRACT:
Na.sup.+ -conducting glass and glass-ceramic of the composition comprising aNa.sub.2 O, bSiO.sub.2, cM.sub.2 O.sub.3, dM'O.sub.2 and eM"O wherein, based on the combined molar amounts totaling 100%, a is 32-41 mole %, b is 50-58 mole %, the ratio a/b is 0.575/1 to 0.760/1, c is 0-8 mole %, d is 0-7 mole %, e is 0-17 mole %, 2c+d+e is at least 8.7 mole %, M is one or more elements selected from the group consisting of the rare earth elements, yttrium and iron, M' is Zr or Hf and M" is Mg, Ca, Sr or Ba, Na.sup.+ -conducting composition having the substantially cubic crystalline structure of the formula Na.sub.9-x-n-z/2 M.sub.1+x/3-2y-n-z/2 M'.sub.y+n M".sub.y+z Si.sub.6 O.sub.18 wherein M, M' and M" are as defined above, x is 0 to 1.5, y is 0 to 0.5, z is 0 to 2.0, n is 0 to 0.5, y+n.ltoreq.0.5 and y+z.ltoreq.2.0 and the use of said glass, glass-ceramic and crystalline cubic material as a solid electrolyte.
REFERENCES:
patent: 3829331 (1974-08-01), Tsang
patent: 4042482 (1977-08-01), Shannon et al.
patent: 4052532 (1977-10-01), Tannenberger et al.
patent: 4146684 (1979-03-01), Fischer et al.
Maksimov et al., "Hydrothermal Crystal . . . Yttrium Siliacates", Soviet Physics, Crystallography, vol. 14, No. 3, Nov.-Dec., 1969, pp. 407-410.
Maksimov et al., "Crystal Structure of . . . Na.sub.5 YSi.sub.4 O.sub.12 ", Sov. Phys.-Dokl., 18, No. 12, Jun., 1974, pp. 763-765.
Mondal et al., "The Crystal Structure of Tricalcium Aluminate", Acta. Cryst., B31, 1975, pp. 689-697.
E. I. Du Pont de Nemours and Company
Prescott Arthur C.
LandOfFree
Na.sup.+ -conducting glass, glass-ceramic and crystalline cubic does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Na.sup.+ -conducting glass, glass-ceramic and crystalline cubic , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Na.sup.+ -conducting glass, glass-ceramic and crystalline cubic will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-541152