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NaAlTi₃O₈, A Novel Anode Material for Sodium Ion Battery.

ABSTRACT: Sodium ion batteries are being considered as an alternative to lithium ion batteries in large-scale energy storage applications owing to the low cost. A novel titanate compound, NaAlTi₃O₈, was successfully synthesized and tested as a promising anode material for sodium ion batteries. Powder X-ray Diffraction (XRD) and refinement were used to analyze the crystal structure. Electrochemical cycling tests under a C/10 rate between 0.01 - 2.5 V showed that ~83 mAh/g capacity could be achieved in the second cycle, with ~75% of which retained after 100 cycles, which corresponds to 0.75 Na⁺ insertion and extraction. The influence of synthesis conditions on electrochemical performances was investigated and discussed. NaAlTi₃O₈ not only presents a new anode material with low average voltage of ~0.5 V, but also provides a new type of intercalation anode with a crystal structure that differentiates from the anodes that have been reported.

SUBMITTER: Ma X

PROVIDER: S-EPMC5427963 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

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NaAlTi3O8, A Novel Anode Material for Sodium Ion Battery.

Ma Xuetian X An Ke K Bai Jianming J Chen Hailong H

Scientific reports 20170313 1

Sodium ion batteries are being considered as an alternative to lithium ion batteries in large-scale energy storage applications owing to the low cost. A novel titanate compound, NaAlTi3O8, was successfully synthesized and tested as a promising anode material for sodium ion batteries. Powder X-ray Diffraction (XRD) and refinement were used to analyze the crystal structure. Electrochemical cycling tests under a C/10 rate between 0.01 - 2.5 V showed that ~83 mAh/g capacity cou ...[more]

PMID: 28279013

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