Year: 2025
Type: article
Abstract: positive electrode material in lithium-ion batteries. Polyetherureas have been synthesized by ruthenium-catalyzed dehydrogenative coupling of polyethylene glycol diamine and methanol avoiding conventionally used toxic diisocyanate feedstock. The best binder performance was obtained when polyetherurea was used in combination with SBR (Styrene-Butadiene Rubber), exhibiting a coulombic efficiency of ∼99.9% and a cell polarization of 30 mV. Remarkably, the combination of polyetherurea/SBR as a binder demonstrates comparable performance as that of CMC (carboxymethyl cellulose), which is a commonly used aqueous binder for lithium-ion batteries. Evidence of the involvement of polyetherureas in binder performance has been provided using IR spectroscopy and scanning electron microscopy. Physical, electrochemical, and mechanical properties of the polyetherurea have been studied using TGA, DSC, powder XRD, cyclic voltammetry, nanoindentation, tensile testing, and 180° peel test that shed light on why this polymer acts as a good binder.
Source: Green Chemistry
DOI: 10.1039/d5gc03953c
Authors: Garima Saini, Mei Jun Tan, Maximillian G. Stanzione, Ketan Pancholi, Harini Sampathkumar, Matthew Walker, Charlie Patterson, Massimo Vassalli, Aaron B. Naden, Oxana V. Magdysyuk, Jiyu Tian, A. Robert Armstrong, Amit Kumar
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Awards: Mechanism and Machine Led Catalyst Discovery for a Circular Economy, G4997612571, G7049133845, G7498449646, Light Element Analysis Facility - LEAF, New Directions for the Synthesis and Degradation of Renewable and Recyclable Plastics Using Homogeneous Catalytic (De)hydrogenation, G8667286305
OpenAlex ID: W4416672184