A Fibrous Solid Electrolyte for Lithium-ion Batteries

TL;DR

This paper introduces a fibrous solid electrolyte for lithium-ion batteries using oxide fibers, which simplifies fabrication, enhances stability, and improves performance compared to traditional thin film electrolytes.

Contribution

It presents a novel fibrous electrolyte made from LLZO fibers via electrospinning, offering easier manufacturing and better mechanical and electrochemical properties.

Findings

Electrospinning successfully produced LLZO fibers.

Fibrous electrolyte shows promising stability and performance.

Potential for safer, cost-effective all-solid-state batteries.

Abstract

The new methodology proposed in this work uses oxide filaments/fibers instead of a dense thin film electrolyte, allowing: (i) straightforward fabrication without the use of costly thin film production techniques, (ii) minor changes in the existing Li- ion battery production lines, and (iii) better mechanical stability and electrochemical performance. Li7La3Zr2O12 (LLZO) fibers as an electrolyte were prepared using the electrospinning technique. The crystallographic phase and morphology of the products was studied X-ray diffraction (XRD) patterns and scanning electron microscopy (SEM), respectively. The results indicated that the produced electrolyte would be a good alternative of all-solid-state batteries for electric vehicles in terms of battery safety and performance.