Interdigitated cathode–electrolyte architectural design for fast-charging lithium metal battery with lithium oxyhalide solid-state electrolyte

Abstract

The all-solid-state battery is a promising alternative to the conventional lithium-ion batteries that have reached the limit of their technological capabilities. The next-generation lithium-ion batteries are expected to be eco-friendly,...

In Situ/Operando Techniques for Unraveling Mechanisms of Ionic Transport in Solid-State Lithium Indium Halide Electrolyte

“…It was observed that at higher temperatures (145 to 280 • C), the mass of the Li 3 InCl 6 sample remains constant. However, the endothermic effect observed in this temperature range could be assigned to a partial and gradual transformation from a ceramic to a glass-ceramic phase, which was observed earlier in argyrodite [23] and lithium oxyhalide [24] solid-state electrolytes. At 454.4 • C, the third endothermic effect is observed, which could be explained by the phase transition.…”

Challenges and Opportunities for Fast-Charging Batteries

“…Moreover, it is possible to achieve XFC in solid-state lithium batteries by developing solid-state electrolytes with high ionic conductivity and a chemically/electrochemically stable interface. Typically, Smirnova et al 92 designed solid-state electrochemical batteries through a melt-casting method, which enhanced cathode/electrolyte interfaces that allowed unprecedentedly high charging rates. To negate the interfacial impedance, Han et al 93 proposed ultrathin Al 2 O 3 onto the surface of Li 7 la 2.75 Ca 0.25 Zr 1.75 Nb 0.25 O 12 by atomic layer deposition.…”

Solid State Li Metal/LMO Batteries based on Ternary Triblock Copolymers and Ionic Binders

“…1,2 Futhermore, in ASSBs, the solid electrolyte membrane is required to act as both an electronic insulator and an ionic conductor, supporting highly stable lithium metal cycling, while avoiding lithium dendrite formation. A number of solid electrolyte options have been considered for ASSBs, including ceramic conductors (such as LLZO, 3−5 LATP, 6−8 sulfides, 9,10 oxyhalides, 11,12 etc. ), deep eutectic solvent (DES)-based selfhealing polymer electrolytes, 13−15 solid polymer electrolytes (SPEs), and composites (e.g., polymers combined with ceramics).…”

“…Several approaches have been reported to date, including the use of polymers and ionic salts as well as formulations that include an inorganic solid conductor. , Futhermore, in ASSBs, the solid electrolyte membrane is required to act as both an electronic insulator and an ionic conductor, supporting highly stable lithium metal cycling, while avoiding lithium dendrite formation. A number of solid electrolyte options have been considered for ASSBs, including ceramic conductors (such as LLZO, − LATP, − sulfides, , oxyhalides, , etc. ), deep eutectic solvent (DES)-based self-healing polymer electrolytes, − solid polymer electrolytes (SPEs), and composites (e.g., polymers combined with ceramics). − In the class of SPEs, there are also several subclasses, for example SPEs consisting of a binary mixture of a polymer host and a lithium salt; − polymers containing a low molecular weight plasticizer in addition to the lithium salt to enhance ion mobility; − ionogels, where high content ionic liquid-based electrolytes are incorporated into a polymer network structure; − and ternary systems, where the major components are the polymer and lithium salt, and ionic liquid (IL) is also included to further enhance conductivity …”