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Enabling High-Performance NASICON-Based Solid-State Lithium Metal Batteries Towards Practical Conditions

Journal Article · · Advanced Functional Materials
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  1. Hydro‐Québec Center of Excellence in Transportation Electrification and Energy Storage, Varennes, QC (Canada)
  2. Argonne National Lab. (ANL), Lemont, IL (United States)
  3. Istituto Nanoscienze Consiglio Nazionale delle Ricerche, Modena (Italy)
  4. Istituto Nanoscienze Consiglio Nazionale delle Ricerche, Modena (Italy)
  5. INRS Centre Énergie Matériaux Télécommunication, Varennes, QC (Canada)
  6. Hydro‐Québec Center of Excellence in Transportation Electrification and Energy Storage, Varennes, QC (Canada); McGill Univ., Montreal, QC (Canada)
  7. CIC Energigune Parque Tecnológico de Álava (Spain)
  8. Argonne National Lab. (ANL), Lemont, IL (United States); Stanford University, CA (United States); Imam Abdulrahman Bin Faisal University (IAU), Dammam (Saudi Arabia). Institute for Research & Medical Consulations
+ Show Author Affiliations
Solid-state lithium metal batteries (SSLMBs) are promising next-generation high-energy rechargeable batteries. However, the practical energy densities of the reported SSLMBs have been significantly overstated due to the use of thick solid-state electrolytes, thick lithium (Li) anodes, and thin cathodes. Here, a high-performance NASICON-based SSLMB using a thin (60 µm) Li1.5Al0.5Ge1.5(PO4)3 (LAGP) electrolyte, ultrathin (36 µm) Li metal, and high-loading (8 mg cm-2) LiFePO4 (LFP) cathode is reported. The thin and dense LAGP electrolyte prepared by hot-pressing exhibits a high Li ionic conductivity of 1 × 10-3 S cm-1 at 80 °C. The assembled SSLMB can thus deliver an increased areal capacity of ≈1 mAh cm-2 at C/5 with a high capacity retention of ≈96% after 50 cycles under 80 °C. Furthermore, it is revealed by synchrotron X-ray absorption spectroscopy and in situ high-energy X-ray diffraction that the side reactions between LAGP electrolyte and LFP cathode are significantly suppressed, while rational surface protection is required for Ni-rich layered cathodes. This study provides valuable insights and guidelines for the development of high-energy SSLMBs towards practical conditions.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1831729
Alternate ID(s):
OSTI ID: 1785747
Journal Information:
Advanced Functional Materials, Journal Name: Advanced Functional Materials Journal Issue: 30 Vol. 31; ISSN 1616-301X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

25 ENERGY STORAGE
NASICON
hot pressing
lithium metal batteries
practical conditions
thick cathodes
thin Li metal
thin solid-state electrolytes