Dendritic sulfonated polyethersulfone nanofiber membrane@LaCoO₃ nanowire-based composite solid electrolytes with facilitated ion transport channels for high-performance all-solid-state lithium metal batteries

Abstract

This work provides a composite solid electrolyte combining dendritic SPES nanofibers and LaCoO3 nanowires for ASSLIBs. Benefitting from the promotion of electrolytes on rapid ion deposition, the pouch cell possesses excellent cycle performance.

Review: Application of Bionic-Structured Materials in Solid-State Electrolytes for High-Performance Lithium Metal Batteries

“…The prepared multilayer nanofiber also possessed excellent mechanical properties and high specific surface area, thereby increasing the migration speed and uniformity of Li + , leading to an increased Li + conductivity and migration number, and inhibiting the growth of lithium dendrites. Besides, Yang et al 69 drew inspiration from root-like structures and utilized high-mechanical-strength dendritic sulfonated polyether sulfone (SPES) nanofiber membranes and some functional LaCoO 3 nanowires containing some oxygen vacancies in the prepared PEO-based CSEs. As depicted in Figure 2d, the nanofiber membrane had a multilevel structure, with nanofibers distributed between 30 and 400 nm, and the main and supporting fibers were intertwined to form a 3D network for the hierarchically structured membrane.…”

Recent Progress on Nanomodification Applied in Anodes of Rechargeable Li Metal Batteries

“…The nanonetwork structure can serve as a continuous framework, enhance the mechanical strength of the electrolyte, and provide mechanical support. It plays a dual role in enhancing the interface compatibility and stability, reducing the crystallinity and inhibiting the formation of lithium dendrites, so that ions can be effectively transported for a long time. − Wan et al developed a solid composite electrolyte by embedding lithium bis­(trifluoromethylsulfonyl)­imide (PL) into 10 wt % Li 7 La 3 Zr 2 O 12 (LLZO) nanowires, with the LLZO nanowires being dispersed into PL (Figure ). This composite electrolyte exhibited a high ionic conductivity, good interfacial contact, and fast ion transport within the cathode.…”

Bead-Containing Superhydrophobic Nanofiber Membrane for Membrane Distillation

“…Understanding the underlying mechanisms of bead formation and adjusting the electrospinning process accordingly is vital for developing high-quality SPES nanofibrous materials for membrane filtration [2,11,44]. Integrating nanobeads into the nanofiber membrane matrix could alter its properties, potentially enhancing the performance characteristics of the membrane when utilized in MD processes [45,46]. SPES nanofiber membranes have been extensively researched for heavy metal removal due to their exceptional thermal and mechanical properties as well as their chemical resistance [2,47,48].…”