Boosting the interfacial superionic conduction of halide solid electrolytes for all-solid-state batteries

Abstract Designing highly conductive and (electro)chemical stable inorganic solid electrolytes using cost-effective materials is crucial for developing all-solid-state batteries. Here, we report halide nanocomposite solid electrolytes (HNSEs) ZrO 2 (-ACl)-A 2 ZrCl 6 (A = Li or Na) that demonstrate improved ionic conductivities at 30 °C, from 0.40 to 1.3 mS cm −1 and from 0.011 to 0.11 mS cm −1 for Li + and Na + , respectively, compared to A 2 ZrCl 6 , and improved compatibility with sulfide solid electrolytes. The mechanochemical method employing Li 2 O for the HNSEs synthesis enables the formation of nanostructured networks that promote interfacial superionic conduction. Via density functional theory…

• UD
  U.S. Department of Energy

  Awards: No. DE-SC0012704, SC0012704
• NR
  National Research Foundation
• SN
  Seoul National University
• KI
  Korea Institute of Science and Technology
• KI
  Korea Institute of Science and Technology Information
• NR
  National Research Foundation of Korea

  Award: 2022M3J1A1085397
• S
  Samsung

  Award: SRFC-MA2102-03
• OO
  Office of Science

  Awards: No. DE-SC0012704, Contract No. DE-SC0012704, SC0012704, DE-SC0012704
• BE
  Basic Energy Sciences

  Awards: Contract No. DE-SC0012704, DE-SC0012704, No. DE-SC0012704, SC0012704
• BN
  Brookhaven National Laboratory

  Awards: SC0012704, No. DE-SC0012704, Contract No. DE-SC0012704