Li, Na, K, Mg, Zn, Al, and Ca Anode Interface Chemistries Developed by Solid-State Electrolytes

Solid-state batteries (SSBs) have received significant attention due to their high energy density, reversible cycle life, and safe operations relative to commercial Li-ion batteries using flammable liquid electrolytes. This review presents the fundamentals, structures, thermodynamics, chemistries, and electrochemical kinetics of desirable solid electrolyte interphase (SEI) required to meet the practical requirements of reversible anodes. Theoretical and experimental insights for metal nucleation, deposition, and stripping for the reversible cycling of metal anodes are provided. Ion transport mechanisms and state-of-the-art solid-state electrolytes (SEs) are discussed for realizing high-performance cells. The interface challenges and strategies are also concerned with the integration of SEs, anodes, and cathodes for large-scale SSBs in terms of physical/chemical contacts, space-charge layer, interdiffusion, lattice-mismatch, dendritic growth, chemical reactivity of SEI, current collectors, and thermal instability. The recent innovations for anode interface chemistries developed by SEs are highlighted with monovalent (lithium (Li+), sodium (Na+), potassium (K+)) and multivalent (magnesium (Mg2+), zinc (Zn2+), aluminum (Al3+), calcium (Ca2+)) cation carriers (i.e., lithium-metal, lithium-sulfur, sodium-metal, potassium-ion, magnesium-ion, zinc-metal, aluminum-ion, and calcium-ion batteries) compared to those of liquid counterparts. Comprehensive analysis of the recent innovations in anode interface chemistries developed by solid-state and liquid electrolytes is highlighted with monovalent (Li+, Na+, K+) and multivalent (Mg2+, Zn2+, Al3+, Ca2+) cation carriers (i.e., lithium-metal, lithium-sulfur, sodium-metal, potassium-ion, magnesium-ion, zinc-metal, aluminum-ion, and calcium-ion batteries). The interface challenges and strategies for integrating solid-state electrolytes, anodes, and cathodes for large-scale SSBs are discussed.image

Automated summary

Solid-state batteries have gained attention for their high energy density, reversible cycle life, and safe operations compared to commercial Li-ion batteries. This review discusses the fundamentals of solid electrolyte interphase (SEI) and provides insights into metal nucleation and deposition for reversible metal anodes. It also explores ion transport mechanisms, state-of-the-art solid-state electrolytes, and interface challenges for integrating solid-state electrolytes, anodes, and cathodes in large-scale SSBs.