Element conducting sodium ions for use in electrochemical cells and method for producing it
AssigneeFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
InventorsJochen SCHILM, Mihails KUSNEZOFF, Doerte WAGNER, Axel ROST
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Abstract
The invention relates to sodium-ion-conducting elements for use in electrochemical cells, more particularly as solid electrolyte/separator in high-temperature batteries. In these elements, a surface of a porous substrate bears a coating which is obtained by sintering at a temperature of not more than 1100° C. and which is formed with the system Na2O—SiO2—R2O5—R12O3, in which R1=Sc, Y, La and/or B and R2=P, Sb, Bi, Sn, Te, Zn and/or Ge.
Claims10
A sodium-ion-conducting element for use in electrochemical cells, more particularly as solid electrolyte/separator in high-temperature batteries, wherein a surface of a porous substrate bears a coating which is obtained by sintering at a temperature of not more than 1100° C. and which is formed with the system Na2O—SiO2—R2O5—R12O3, in which R1=Sc, Y, La and/or B and R2=P, Sb, Bi, Sn, Te, Zn and/or Ge.
Dependencies are inferred from the claim text.