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US 10,256,504 B2Granted
Ionic conductivity of NASICON through aliovalent cation substitution
AssigneeUniversity of Maryland
InventorsEric D. Wachsman, Adam Jolley
Life of this patent
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Abstract
The present invention is directed to solid NASICON electrolytes in which the zirconium site is doped with a 2+ oxidation state cation. The present invention is also directed to methods of making the solid electrolytes and methods of using the solid electrolytes in batteries and other electrochemical technologies.
Claims20
A solid electrolyte of formula (I):
- Na3+2xMxZr2−xSi2PO12 (I)
- wherein
- M is a metal ion selected from the group consisting of Co2+, Ni2+, and Zn2+;
- and
- x is between 0.1 and 1.5 when M is Co2+ or Ni2+ and x is between 0.5 and 1.5 when M is Zn2+.
2 more elements
A sodium ion battery comprising a solid electrolyte, wherein the solid electrolyte is of formula (I):
- Na3+2xMxZr2−xSi2PO12 (I)
- wherein
- M is a metal ion selected from the group consisting of Co2+, Ni2+, and Zn2+;
- and
- x is between 0.1 and 1.5 when M is Co2+ or Ni2+ and x is between 0.5 and 1.5 when M is Zn2+.
2 more elements
Dependencies are inferred from the claim text.