TY - JOUR
T1 - Interface Aspects in All-Solid-State Li-Based Batteries Reviewed
AU - Chen, Chunguang
AU - Jiang, Ming
AU - Zhou, Tao
AU - Raijmakers, Luc
AU - Vezhlev, Egor
AU - Wu, Baolin
AU - Schülli, Tobias U.
AU - Danilov, Dmitri L.
AU - Wei, Yujie
AU - Eichel, Rüdiger A.
AU - Notten, Peter H.L.
PY - 2021/4/8
Y1 - 2021/4/8
N2 - Extensive efforts have been made to improve the Li-ionic conductivity of solid electrolytes (SE) for developing promising all-solid-state Li-based batteries (ASSB). Recent studies suggest that minimizing the existing interface problems is even more important than maximizing the conductivity of SE. Interfaces are essential in ASSB, and their properties significantly influence the battery performance. Interface problems, arising from both physical and (electro)chemical material properties, can significantly inhibit the transport of electrons and Li-ions in ASSB. Consequently, interface problems may result in interlayer formation, high impedances, immobilization of moveable Li-ions, loss of active host sites available to accommodate Li-ions, and Li-dendrite formation, all causing significant storage capacity losses and ultimately battery failures. The characteristic differences of interfaces between liquid- and solid-type Li-based batteries are presented here. Interface types, interlayer origin, physical and chemical structures, properties, time evolution, complex interrelations between various factors, and promising interfacial tailoring approaches are reviewed. Furthermore, recent advances in the interface-sensitive or depth-resolved analytical tools that can provide mechanistic insights into the interlayer formation and strategies to tailor the interlayer formation, composition, and properties are discussed.
AB - Extensive efforts have been made to improve the Li-ionic conductivity of solid electrolytes (SE) for developing promising all-solid-state Li-based batteries (ASSB). Recent studies suggest that minimizing the existing interface problems is even more important than maximizing the conductivity of SE. Interfaces are essential in ASSB, and their properties significantly influence the battery performance. Interface problems, arising from both physical and (electro)chemical material properties, can significantly inhibit the transport of electrons and Li-ions in ASSB. Consequently, interface problems may result in interlayer formation, high impedances, immobilization of moveable Li-ions, loss of active host sites available to accommodate Li-ions, and Li-dendrite formation, all causing significant storage capacity losses and ultimately battery failures. The characteristic differences of interfaces between liquid- and solid-type Li-based batteries are presented here. Interface types, interlayer origin, physical and chemical structures, properties, time evolution, complex interrelations between various factors, and promising interfacial tailoring approaches are reviewed. Furthermore, recent advances in the interface-sensitive or depth-resolved analytical tools that can provide mechanistic insights into the interlayer formation and strategies to tailor the interlayer formation, composition, and properties are discussed.
KW - all-solid-state batteries
KW - depth profiling
KW - interfaces
KW - interfacial resolution
KW - lithium detection
UR - http://www.scopus.com/inward/record.url?scp=85100903719&partnerID=8YFLogxK
U2 - 10.1002/aenm.202003939
DO - 10.1002/aenm.202003939
M3 - Review article
AN - SCOPUS:85100903719
VL - 11
JO - Advanced Energy Materials
JF - Advanced Energy Materials
SN - 1614-6832
IS - 13
M1 - 2003939
ER -