▎ 摘　　要

The organosilane as the corona was anchored the graphene oxide, and then poly(ethylene glycol) 4-nonyl phenyl ether 3-sulfopropyl potassium (PEGs) was grafted onto the surface of modified graphene oxide by ion exchange, yielding the graphene oxide ionic solvent-free nanofluids termed as GO-PEGs. The rheological test results show that GO-PEGs exhibits fluid behavior at room temperature. The XPS test verifies that the C/O ratio decrease from 4.05 (GO) to 3.32 (GO-PEGs) after be decorated by PEGs. The electrochemical properties of GO-PEGs demonstrate that the conductivity increases with the temperature rises. At last, the lithium ion battery containing GO-PEGs has a good discharge performance when the battery discharge at different temperatures implying GO-PEGs is a promising candidate for application in the battery field.