Electrochemical sodium storage in amorphous GeO sub(x) powder

Electrochemical sodium storage in amorphous GeO sub(x) powder

The amorphous GeO sub(x) (x < 1) was synthesized and investigated its suitability as a Na-ion battery anode. GeO sub(x) was synthesized by oxidizing Zintl-phase NaGe with isopropyl alcohol at room temperature. The amorphous GeO sub(x) showed good electrochemical Na storage as an anode for Na-ion...

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Veröffentlicht in:Electrochimica acta 2016-03, Vol.195, p.192-198
Hauptverfasser: Kajita, Tetsuya, Itoh, Takashi
Format: Artikel
Sprache:eng
Schlagworte:
Anodes
Isopropyl alcohol
Oxidation
Rechargeable batteries
Sodium
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Zusammenfassung:The amorphous GeO sub(x) (x < 1) was synthesized and investigated its suitability as a Na-ion battery anode. GeO sub(x) was synthesized by oxidizing Zintl-phase NaGe with isopropyl alcohol at room temperature. The amorphous GeO sub(x) showed good electrochemical Na storage as an anode for Na-ion batteries, with first reversible capacity of 342 mAh g super(-1), high power of 237 mAh g super(-1) (6 A g super(-1)), and cycle performance, retaining a capacity of 216 mAh g super(-1) after 40 cycles.
ISSN:0013-4686
DOI:10.1016/j.electacta.2016.02.117