The multicomponent synergistic effect of a hierarchical Li_0.485La_0.505TiO₃ solid-state electrolyte for dendrite-free lithium-metal batteries

Abstract

A novel percolation composite solid electrolyte that homogenizes the interfacial electric field and generates piezoelectricity was successfully prepared for uniform lithium deposition and lithium dendrite growth prevention.

Overcoming the Interfacial Challenges of LiFePO4 in Inorganic All-Solid-State Batteries

“…The low room-temperature ionic conductivities of the solid polymer electrolytes are usually mitigated by high-temperature operation, which is a prevalent strategy used among prior works. 14,15,[17][18][19]22,23,25,26 However, relying on high-temperature environments is not desirable for most energy storage applications. The use of oxidatively stable and conductive inorganic solid electrolytes that can enable the use of LFP at room temperature has yet to be reported.…”

“…Interestingly, research efforts on LFP in solid-state batteries have mainly utilized organic polymer electrolytes, which can still exhibit some degree of flammability. Prior studies using LFP cathodes have mainly relied on polymer hybrid electrolytes or gel-type slurries. − While categorized as a solid state, polymer electrolytes still exhibit vital disadvantages such as their low ionic conductivities and the use of flammable organic additives. The low room-temperature ionic conductivities of the solid polymer electrolytes are usually mitigated by high-temperature operation, which is a prevalent strategy used among prior works. ,,− ,,,, However, relying on high-temperature environments is not desirable for most energy storage applications.…”

“…Prior studies using LFP cathodes have mainly relied on polymer hybrid electrolytes or gel-type slurries. − While categorized as a solid state, polymer electrolytes still exhibit vital disadvantages such as their low ionic conductivities and the use of flammable organic additives. The low room-temperature ionic conductivities of the solid polymer electrolytes are usually mitigated by high-temperature operation, which is a prevalent strategy used among prior works. ,,− ,,,, However, relying on high-temperature environments is not desirable for most energy storage applications. The use of oxidatively stable and conductive inorganic solid electrolytes that can enable the use of LFP at room temperature has yet to be reported.…”

Overcoming the Interfacial Challenges of LiFePO4 in Inorganic All-Solid-State Batteries

“…Prior studies using LFP cathodes have mainly relied on polymer hybrid electrolytes or gel-type slurries. [14][15][16][17][18][19][20][21][22][23][24][25][26] While categorized as solid-state, polymer electrolytes still exhibit vital disadvantages such as their low ionic conductivities and the use of flammable organic additives. The low room temperature ionic conductivities of the solid polymer electrolytes are usually mitigated by hightemperature operation, which is a prevalent strategy used amongst prior works.…”

“…The low room temperature ionic conductivities of the solid polymer electrolytes are usually mitigated by hightemperature operation, which is a prevalent strategy used amongst prior works. 14,15,17,18,19,22,23,25,26 However, relying on high-temperature environments is not desirable for most energy storage applications. The use of oxidatively stable and conductive inorganic solid electrolytes that can enable the use of LFP at room temperature has yet to be reported.…”