TY - JOUR
T1 - Lithium migration mechanism in lithium zirconium oxide coating layers for all-solid-state lithium batteries
AU - Chae, Munseok S.
N1 - Publisher Copyright:
© 2024 Elsevier Inc.
PY - 2024/9
Y1 - 2024/9
N2 - Solid-state batteries utilizing sulfide-based solid electrolytes encounter challenges stemming from inadequate oxidation-reduction stability and undesired side reactions at the electrode/electrolyte interfaces. To address these issues, studies have employed electrode surface coating techniques. This study investigates the lithium migration mechanism within different lithium zirconium oxide compositions via crystallographic analysis. This investigation highlights the considerable potential of Li6Zr2O7 among these compositions. Within the Li6Zr2O7 structure, the analysis reveals distinct lithium diffusion barriers spanning from approximately 0.35 eV–0.45 eV and 0.878 eV, indicating diverse pathways for lithium ion diffusion. Notably, the Li6Zr2O7-coated cathode exhibits remarkedly improved cyclability in an all-solid-state battery system. These findings underscore the importance and viability of exploring diverse structures and compositions of coating materials, moving beyond conventional options, such as LiNbO3 and Li4Ti5O12.
AB - Solid-state batteries utilizing sulfide-based solid electrolytes encounter challenges stemming from inadequate oxidation-reduction stability and undesired side reactions at the electrode/electrolyte interfaces. To address these issues, studies have employed electrode surface coating techniques. This study investigates the lithium migration mechanism within different lithium zirconium oxide compositions via crystallographic analysis. This investigation highlights the considerable potential of Li6Zr2O7 among these compositions. Within the Li6Zr2O7 structure, the analysis reveals distinct lithium diffusion barriers spanning from approximately 0.35 eV–0.45 eV and 0.878 eV, indicating diverse pathways for lithium ion diffusion. Notably, the Li6Zr2O7-coated cathode exhibits remarkedly improved cyclability in an all-solid-state battery system. These findings underscore the importance and viability of exploring diverse structures and compositions of coating materials, moving beyond conventional options, such as LiNbO3 and Li4Ti5O12.
KW - All-solid-state batteries
KW - Cathode coating layers
KW - LiZrO
KW - Lithium batteries
KW - Lithium-ion conductor
UR - http://www.scopus.com/inward/record.url?scp=85194291563&partnerID=8YFLogxK
U2 - 10.1016/j.jssc.2024.124788
DO - 10.1016/j.jssc.2024.124788
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AN - SCOPUS:85194291563
SN - 0022-4596
VL - 337
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
M1 - 124788
ER -