A dense NASICON sheet prepared by tape-casting and low temperature sintering

Keisuke Okubo, He Wang, Katsuro Hayashi, Miki Inada, Naoya Enomoto, George Hasegawa, Takashi Osawa, Hitoshi Takamura

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Ceramic sheet of Na+ ion-conducting solid electrolyte, Na3Zr2Si2PO12 (NASICON), has been prepared by tape-casting method. Addition of 60Na2O-10Nb2O5-30P2O5 glass as a sintering aid is crucial for fabrication of fully-densified impermeable sheet. Otherwise the gas tightness is not achieved even sintered at 1200 °C. The best preparation condition is 5 or 10 wt% grass-addition with respect to NASICON and sintering at 1000–1100 °C, which is lower by 100–200 °C than the typical densification temperature of NASICON without the additive. A sample with a thickness of 35 μm and total conductivity of 4.4 × 10−4 S cm−1 is obtained by 5 wt% glass addition and sintering at 1100 °C for 4 h.

Original languageEnglish
Pages (from-to)176-181
Number of pages6
JournalElectrochimica Acta
Volume278
DOIs
Publication statusPublished - 2018 Jul 10

Keywords

  • Ceramic processing
  • Gas permeability
  • Na ion conductor
  • Niobate-phosphate glass
  • Thick film

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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    Okubo, K., Wang, H., Hayashi, K., Inada, M., Enomoto, N., Hasegawa, G., Osawa, T., & Takamura, H. (2018). A dense NASICON sheet prepared by tape-casting and low temperature sintering. Electrochimica Acta, 278, 176-181. https://doi.org/10.1016/j.electacta.2018.05.020