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Lithium-compatible and air-stable vacancy-rich Li9N2Cl3 for high–areal capacity, long-cycling all–solid-state lithium metal batteries

Journal Article · · Science Advances
 [1];  [1];  [2];  [3];  [1];  [4];  [4];  [4];  [4];  [4];  [1];  [1];  [1];  [1];  [2];  [2];  [3];  [1];  [5]
  1. Western University, London, ON (Canada)
  2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
  3. University of Maryland, College Park, MD (United States)
  4. Canadian Light Source, Saskatoon, SK (Canada)
  5. Western University, London, ON (Canada); Eastern Institute for Advanced Study, Eastern Institute of Technology, Ningbo (China)
+ Show Author Affiliations
Attaining substantial areal capacity (>3 mAh/cm2) and extended cycle longevity in all–solid-state lithium metal batteries necessitates the implementation of solid-state electrolytes (SSEs) capable of withstanding elevated critical current densities and capacities. In this study, we report a high-performing vacancy-rich Li9N2Cl3 SSE demonstrating excellent lithium compatibility and atmospheric stability and enabling high–areal capacity, long-lasting all–solid-state lithium metal batteries. The Li9N2Cl3 facilitates efficient lithium-ion transport due to its disordered lattice structure and presence of vacancies. Notably, it resists dendrite formation at 10 mA/cm2 and 10 mAh/cm2 due to its intrinsic lithium metal stability. Furthermore, it exhibits robust dry-air stability. Incorporating this SSE in Ni-rich LiNi0.83Co0.11Mn0.06O2 cathode-based all–solid-state batteries, we achieve substantial cycling stability (90.35% capacity retention over 1500 cycles at 0.5 C) and high areal capacity (4.8 mAh/cm2 in pouch cells). These findings pave the way for lithium metal batteries to meet electric vehicle performance demands.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
2204560
Journal Information:
Science Advances, Journal Name: Science Advances Journal Issue: 42 Vol. 9; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

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