Year: 2026
Type: article
Abstract: Gel polymer electrolytes (GPEs), which combine the safety of solid electrolytes with the high ionic conductivity of liquid electrolytes, have long been regarded as ideal electrolyte materials. This study proposes a polymer/ceramics composite gel electrolyte aimed at improving the performance of lithium-ion batteries. A nanofiber membrane was fabricated by electrospinning a mixture of polyacrylonitrile and lithium-salt-grafted helical mesoporous silica nanoparticles, followed by plasticizer absorption to obtain the composite gel electrolyte film (PAN/SiO2-Li). Experimental results indicate that this gel electrolyte membrane possesses high thermal stability, a wide electrochemical window (>5.3 V vs. Li/Li+), high room-temperature ionic conductivity (~4.4 × 10−3 S cm−1), and a good lithium-ion transference number (0.72). In symmetric Li||Li cells, this electrolyte suppresses lithium dendrite growth and maintains stable lithium deposition/stripping. This work presents a practical electrolyte design strategy for developing GPEs with enhanced safety and performance.
Source: Materials
DOI: 10.3390/ma19040744
Authors: Xingyu Liu, Junxian Fu, Wen Huang, Yonggang Yang, Yi Li
Institution: Soochow University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,137
Award: G7278963717
OpenAlex ID: W7128917938