Na–CO2 battery with NASICON-structured solid-state electrolyte

Zizheng Tong, Shu Bo Wang, Mu Huai Fang, Yen Ting Lin, Kun Ta Tsai, Sung Yu Tsai, Li Chang Yin, Shu Fen Hu, Ru Shi Liu

Research output: Contribution to journalArticlepeer-review

Abstract

Utilizing CO2 as cathode gas, Na–CO2 battery has been intensively studied due to its potential application in the exploration of Mars, where CO2 takes up 96% of the atmosphere. However, evaporation of the flammable liquid electrolyte restricts the practical application of the Na–CO2 battery. Herein, a solid-state Na–CO2 battery has been fabricated with the help of a plastic crystal electrolyte and kinetically stable interphase. The succinonitrile-based plastic crystal electrolyte interphase makes an intimate contact between Na3Zr2Si2PO12(NZSP) and cathode, thereby promotes the interfacial charge transfer. Simultaneously, the kinetically stable interphase on the anode side is revealed by the cooperation of theoretical calculation and experiments. The kinetically stable interphase protects the NZSP from the continuous interfacial parasitic reaction. The as-proposed solid-state Na–CO2 battery delivers a life span of 50 cycles at 100 mA g−1 with a potential gap of 1.4 V. This study makes solid-state electrolyte Na–CO2 battery an attractive prospect in future applications.

Original languageEnglish
Article number105972
JournalNano Energy
Volume85
DOIs
Publication statusPublished - 2021 Jul

Keywords

  • Na-metal battery
  • NASICON
  • NZSP
  • Solid-state battery
  • Solid-state Na–CO battery

ASJC Scopus subject areas

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

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