Enabling room temperature sodium metal batteries

Ruiguo Cao, Kuber Mishra, Xiaolin Li, Jiangfeng Qian, Mark H. Engelhard, Mark E. Bowden, Kee Sung Han, Karl T. Mueller, Wesley A. Henderson, Ji Guang Zhang

Research output: Contribution to journalArticlepeer-review

221 Scopus citations


Rechargeable batteries based upon sodium (Na+) cations are at the core of many new battery chemistries beyond Li-ion batteries. Rather than using carbon or alloy-based anodes, the direct utilization of solid sodium metal as an anode would be highly advantageous, but its use has been highly problematic due to its high reactivity. In this work, it is demonstrated that, by tailoring the electrolyte formulation, solid Na metal can be electrochemically plated/stripped at ambient temperature with high efficiency (>99%) on both copper and inexpensive aluminum current collectors thereby enabling a shift in focus to new battery chemical couples based upon Na metal operating at ambient temperature. These highly concentrated electrolytes have enabled excellent cycling stability of Na metal batteries using Na metal anode and Na3V2(PO4)3 cathode at high rates with very high efficiency.

Original languageEnglish (US)
Pages (from-to)825-830
Number of pages6
JournalNano Energy
StatePublished - Dec 1 2016

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering


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