Cathode properties of Na2C6O6 for sodium-ion batteries

Cathode properties of Na2C6O6 for sodium-ion batteries

For sodium-ion battery, cathode properties of disodium rhodizonate, Na2C6O6, were investigated. Unlike other organic active materials, Na2C6O6 exhibited good rechargeable capacity about 270mAhg−1, corresponding to more than 2 Na insertion per molecule between 1.0 and 2.9V with using 1M NaClO4/PC as...

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Veröffentlicht in:Electrochimica acta 2013-11, Vol.110, p.240-246
Hauptverfasser: Chihara, Kuniko, Chujo, Nobuhito, Kitajou, Ayuko, Okada, Shigeto
Format: Artikel
Sprache:eng
Schlagworte:
Acetylene
Carbon
Cathodes
Disodium rhodizonate
Electric batteries
Electrolytes
Electrolytic cells
Insertion
Organic material
Pellets
Sodium-ion battery
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Zusammenfassung:For sodium-ion battery, cathode properties of disodium rhodizonate, Na2C6O6, were investigated. Unlike other organic active materials, Na2C6O6 exhibited good rechargeable capacity about 270mAhg−1, corresponding to more than 2 Na insertion per molecule between 1.0 and 2.9V with using 1M NaClO4/PC as electrolyte. Na2C6O6 could also show the rechargeable capacity more than 90mAhg−1 even in acetylene black free pellets. The good cyclability was also confirmed in Na-ion cells with Na-predoped hard carbon anodes.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2013.04.100