Title:
HYDROGEN ION CONDUCTIVE COMPOUND, ITS MANUFACTURE AND ELECTROCHEMICAL CELL CONTAINING IT AS ELECTROLYTE
Document Type and Number:
Japanese Patent JPS56160314
Kind Code:
A
Abstract:
New metal zirconate-silicate-phosphate cpds. (I) contg. H or hydronium ions have the formulas Me(1+x-y)(H(+))(y)Zr (2)Si(x)P(3-x)O(12) (in which x is max. 3 and y is max. 1+x, both exceeding zero and pref. being min. 0.1. Me is a monovalent metal, pref. Na, K and/or Li). (I) are prepd. by treating a cpd. (II) of the formula Me(1+x)Zr(2)Si(x)P(3-x)O(12) with an acid aq. soln. until the Me concn. in the soln. has risen to the required value for y. (I) are specified for use as solid state electrolytes which conduct H or hydronium ions in electrochemical cells, esp. fuel cells, pH meters, detectors for determining ion concns. in aq. solns., organic solns. (e.g. pH meter) and melts, electrochromic displays, separator in H2 generators at low and high temps. or a H2 gas purifier (ion sieve) at low and high temp. They are stable enough to be used at temps. up to min. 300 deg.C.
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Inventors:
HANSU HAA HEFUAA
MAIKERU EFU BERU
ARUPUREHITO RAABENAU
MAIKERU EFU BERU
ARUPUREHITO RAABENAU
Application Number:
JP5193181A
Publication Date:
December 10, 1981
Filing Date:
April 08, 1981
Export Citation:
Assignee:
MAX PLANCK GESELLSCHAFT
International Classes:
C01B3/00; C01B33/20; C01B39/06; H01M8/1016; (IPC1-7): C01B33/20; H01M8/10