The effect of geometric factors on sodium conduction: A comparison of beta- And beta"-alumina

Emma Kennedy; Dunbar P. Birnie

The effect of geometric factors on sodium conduction: A comparison of beta- And beta"-alumina

Rutgers University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

β"-alumina has been shown to have superior sodium conduction compared with β-alumina, and therefore is used as the electrolyte material in sodium battery systems. The β"-alumina structure is composed of layers of (111) oriented spinel-structure units separated by conduction planes that are comparably more open allowing for sodium diffusion. The β-alumina structure is similar except that the spinel units are aligned differently creating a smaller and less flexible conduction plane. In addition to being more flexible, β"-alumina is able to absorb stabilizing ions into the spinel unit, whereas β-alumina does not appear to have that capability. In this paper we analyze the differences in these structures that affect sodium conduction. This comparison will assist in understanding the β"-alumina structure and enhancing its capacity for greater conduction of sodium.

Original language	English
Title of host publication	Ceramic Materials for Energy Applications III - A Collection of Papers Presented at the 37th International Conference on Advanced Ceramics and Composites, ICACC 2013
Pages	57-63
Number of pages	7
Edition	9
Publication status	Published - Jan 15 2014
Event	Ceramic Materials for Energy Applications III - 37th International Conference on Advanced Ceramics and Composites, ICACC 2013 - Daytona Beach, FL, United States Duration: Jan 27 2013 → Feb 1 2013

Publication series

Name	Ceramic Engineering and Science Proceedings
Number	9
Volume	34
ISSN (Print)	0196-6219

Other

Other	Ceramic Materials for Energy Applications III - 37th International Conference on Advanced Ceramics and Composites, ICACC 2013
Country	United States
City	Daytona Beach, FL
Period	1/27/13 → 2/1/13

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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Kennedy, E., & Birnie, D. P. (2014). The effect of geometric factors on sodium conduction: A comparison of beta- And beta"-alumina. In Ceramic Materials for Energy Applications III - A Collection of Papers Presented at the 37th International Conference on Advanced Ceramics and Composites, ICACC 2013 (9 ed., pp. 57-63). (Ceramic Engineering and Science Proceedings; Vol. 34, No. 9).

The effect of geometric factors on sodium conduction : A comparison of beta- And beta"-alumina. / Kennedy, Emma; Birnie, Dunbar P.

Ceramic Materials for Energy Applications III - A Collection of Papers Presented at the 37th International Conference on Advanced Ceramics and Composites, ICACC 2013. 9. ed. 2014. p. 57-63 (Ceramic Engineering and Science Proceedings; Vol. 34, No. 9).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kennedy, E & Birnie, DP 2014, The effect of geometric factors on sodium conduction: A comparison of beta- And beta"-alumina. in Ceramic Materials for Energy Applications III - A Collection of Papers Presented at the 37th International Conference on Advanced Ceramics and Composites, ICACC 2013. 9 edn, Ceramic Engineering and Science Proceedings, no. 9, vol. 34, pp. 57-63, Ceramic Materials for Energy Applications III - 37th International Conference on Advanced Ceramics and Composites, ICACC 2013, Daytona Beach, FL, United States, 1/27/13.

Kennedy, Emma ; Birnie, Dunbar P. / The effect of geometric factors on sodium conduction : A comparison of beta- And beta"-alumina. Ceramic Materials for Energy Applications III - A Collection of Papers Presented at the 37th International Conference on Advanced Ceramics and Composites, ICACC 2013. 9. ed. 2014. pp. 57-63 (Ceramic Engineering and Science Proceedings; 9).

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abstract = "β{"}-alumina has been shown to have superior sodium conduction compared with β-alumina, and therefore is used as the electrolyte material in sodium battery systems. The β{"}-alumina structure is composed of layers of (111) oriented spinel-structure units separated by conduction planes that are comparably more open allowing for sodium diffusion. The β-alumina structure is similar except that the spinel units are aligned differently creating a smaller and less flexible conduction plane. In addition to being more flexible, β{"}-alumina is able to absorb stabilizing ions into the spinel unit, whereas β-alumina does not appear to have that capability. In this paper we analyze the differences in these structures that affect sodium conduction. This comparison will assist in understanding the β{"}-alumina structure and enhancing its capacity for greater conduction of sodium.",

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