Reversible dual-ion battery via mesoporous Cu2O cathode in SO2-in-salt non-flammable electrolyte

Kyung Hwan Kwak, Hyun Jung Suh, Ayoung Kim, Sanghyuk Park, Juhye Song, Siying Li, Youngkwon Kim, Goojin Jeong, Hansu Kim, Young Jun Kim

Research output: Contribution to journalArticle

Abstract

Finding a new battery chemistry is of urgent importance to reply diverse deployment trends of battery-driven devices. Here we propose a strategy to configure dual-ion storage battery based on SO2 solvated chloroaluminate molten salt complex electrolyte employing Cu2O cathode material. The proposed battery chemistry is proven by two different couples of dual-ion (Li/Cl and Na/Cl) batteries that show about 590 Wh kg−1 based on Cu2O mass with working voltage of 3.4 V as well as highly stable cycle performance up to 300 cycles. Further improvement may be possible by optimizing the electrode material with the compatible electrolyte composition, thus being another alternative to address various requirements of next-generation battery for future applications.

Original languageEnglish
Article number104138
JournalNano Energy
Volume66
DOIs
StatePublished - 2019 Dec

Keywords

  • Copper chloride
  • Copper oxide
  • Dual-ion storage
  • Inorganic electrolyte

Fingerprint Dive into the research topics of 'Reversible dual-ion battery via mesoporous Cu<sub>2</sub>O cathode in SO<sub>2</sub>-in-salt non-flammable electrolyte'. Together they form a unique fingerprint.

  • Cite this

    Kwak, K. H., Suh, H. J., Kim, A., Park, S., Song, J., Li, S., Kim, Y., Jeong, G., Kim, H., & Kim, Y. J. (2019). Reversible dual-ion battery via mesoporous Cu2O cathode in SO2-in-salt non-flammable electrolyte. Nano Energy, 66, [104138]. https://doi.org/10.1016/j.nanoen.2019.104138