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Related Concept Videos

Ion Exchange01:17

Ion Exchange

1.1K
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
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Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

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The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
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Related Experiment Video

Updated: Jan 10, 2026

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

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Polyetherureas as aqueous binders for Li ion batteries.

Garima Saini1, Mei Jun Tan1, Maximillian G Stanzione1

  • 1EaStCHEM, School of Chemistry, University of St. Andrews North Haugh St. Andrews KY169ST UK ara@st-andrews.ac.uk ak336@st-andrews.ac.uk.

Green Chemistry : an International Journal and Green Chemistry Resource : GC
|November 27, 2025
PubMed
Summary
This summary is machine-generated.

New polyetherurea binders offer a safer, high-performance alternative for lithium-ion battery electrodes. Combined with SBR, they match common binders, showing great potential for sustainable battery technology.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Polymer Chemistry

Background:

  • Aqueous binders are crucial for sustainable lithium-ion battery production.
  • Conventional binders often rely on toxic diisocyanate feedstocks.
  • Developing safer, high-performance alternatives is essential for advancing battery technology.

Purpose of the Study:

  • To introduce polyetherureas as a novel class of aqueous binders for lithium-ion batteries.
  • To synthesize polyetherureas using a greener, non-toxic method.
  • To evaluate the performance of polyetherurea binders in LiFePO4 electrodes.

Main Methods:

  • Polyetherureas synthesized via ruthenium-catalyzed dehydrogenative coupling.
  • Binder performance evaluated in LiFePO4 positive electrodes.
  • Characterization using IR spectroscopy, SEM, TGA, DSC, XRD, cyclic voltammetry, nanoindentation, tensile testing, and peel tests.

Main Results:

  • Polyetherurea/SBR binder combination achieved high coulombic efficiency (∼99.9%) and low cell polarization (30 mV).
  • Performance was comparable to carboxymethyl cellulose (CMC), a standard aqueous binder.
  • Material characterization provided insights into the polymer's effectiveness as a binder.

Conclusions:

  • Polyetherureas represent a promising, non-toxic alternative aqueous binder for lithium-ion batteries.
  • The polyetherurea/SBR system demonstrates excellent electrochemical and mechanical properties.
  • This research paves the way for more sustainable and efficient battery manufacturing.