Manipulating the diffusion energy barrier at the lithium metal electrolyte interface for dendrite-free long-life batteries

Abstract Constructing an artificial solid electrolyte interphase (SEI) on lithium metal electrodes is a promising approach to address the rampant growth of dangerous lithium morphologies (dendritic and dead Li 0 ) and low Coulombic efficiency that plague development of lithium metal batteries, but how Li + transport behavior in the SEI is coupled with mechanical properties remains unknown. We demonstrate here a facile and scalable solution-processed approach to form a Li 3 N-rich SEI with a phase-pure crystalline structure that minimizes the diffusion energy barrier of Li + across the SEI. Compared with a polycrystalline Li 3 N SEI obtained from conventional practice, the phase-pure/single crystalline Li 3…

• NS
  National Science Foundation

  Awards: 2240507, 2312247, 2132021, 2038083, CBET- 2312247, CBET-2038083, OIA-2132021
• UD
  U.S. Department of Defense
• UD
  U.S. Department of Energy
• DO
  Division of Chemical, Bioengineering, Environmental, and Transport Systems

  Awards: 2038083, CBET-2038083
• DO
  Division of Electrical, Communications and Cyber Systems
• BE
  Basic Energy Sciences