Cathode properties of Na2C6O6 for sodium-ion batteries

Kuniko Chihara, Nobuhito Chujo, Ayuko Kitajou, Shigeto Okada

Research output: Contribution to journalArticlepeer-review

116 Citations (Scopus)


For sodium-ion battery, cathode properties of disodium rhodizonate, Na 2C6O6, were investigated. Unlike other organic active materials, Na2C6O6 exhibited good rechargeable capacity about 270 mAh g-1, corresponding to more than 2 Na insertion per molecule between 1.0 and 2.9 V with using 1 M NaClO 4/PC as electrolyte. Na2C6O6 could also show the rechargeable capacity more than 90 mAh g-1 even in acetylene black free pellets. The good cyclability was also confirmed in Na-ion cells with Na-predoped hard carbon anodes.

Original languageEnglish
Pages (from-to)240-246
Number of pages7
JournalElectrochimica Acta
Publication statusPublished - 2013

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering
  • Electrochemistry


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