# Breaking Ion Clusters: Size Asymmetry for Faster Ion Transport in Polymer Electrolytes

Source: [Breaking Ion Clusters: Size Asymmetry for Faster Ion Transport in Polymer Electrolytes](<https://www.sota2.com/research/paper/69019f823ef7ccd74e5e3b06>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-30T05:03:03.804Z

Authors: Ganesh K Rajahmundry, Tarak K Patra

Published: 2025-10-28T16:13:24.000Z

## Abstract

Solid polymer electrolytes (SPEs) are ion-containing solid materials composed of a polymer matrix that enables ionic transport while maintaining the mechanical stability. The conventional wisdom is that for a high ion concentration, ions microphase separate from the polymer matrix, resulting in poor conductivity. Instead, we show that a high ion size ratio promotes better mixing of the ions with the polymer matrix. Under these conditions, the ion-dipole moment interaction dominates over the ion-ion interaction and improves the ion dispersion in the polymer matrix. The ion size ratio is thus a key to tailor the properties of these materials with immediate relevance to the development of SPEs for energy storage devices.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2510.24580>)

[PDF](<https://arxiv.org/pdf/2510.24580.pdf>)