Related Experiment Video
Updated: Aug 20, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
Organisation in two series of low-dimensional polymer electrolytes with high ambient lithium salt conductivity
Jianguo Lui1, Yungui Zheng, Yen-Po Liao
1Dept of Engineering Materials, University of Sheffield, Sheffield, UK.
Abstract:
The amphiphilic polymers poly[2,5,8,11,14-pentaoxapentadecamethylene(5-hexadecyloxy-1,3-phenylene)] I (abbrev. C16O5), its homologues C16On, n = 1-4, and its copolymers with C16O1 have been synthesised by two Williamson procedures. Method X gives polyether-esters; method Y gives pure polyethers. DSC, optical microscopy, small-to-wide angle X-ray diffraction and complex impedance spectroscopy have been used to investigate organisation and ionic conductivities of the C16On and the C16O5-C16O1 copolymer series and their complexes with LiClO4 and LiBF4. Four-component mixtures of the latter systems (polymers I) with polyoxytetramethylene-decamethylene copolymer (II) and an octadecyl-terminated ABA block copolymer (III) (interfacial stabiliser) ('type D' systems) gave high ambient conductivities ( > or = 10(-4) S cm(-1)) with low temperature dependence. Highest conductivities (8 x 10(-4) S cm(-1) at 20 degrees C) were observed with a type D system based upon C12C18O5X.
More Related Videos
11:04Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
10:03Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
Related Concept Videos
Ionic Association
Theory of Strong Electrolytes
The Electrical Double Layer
Debye–Huckel–Onsager Conductance Equation
Ionic Crystal Structures
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Ion Exchange