Boosting Room-Temperature Li$^+$ Conductivity via strain in solid electrolytes for Lithium-ion Batteries

TL;DR

This paper presents theoretical evidence that applying epitaxial strain can significantly enhance the room-temperature lithium-ion conductivity in solid electrolytes, potentially meeting commercial requirements.

Contribution

It introduces the novel idea that epitaxial strain can be used to improve solid electrolyte conductivity at room temperature, supported by theoretical analysis.

Findings

Epitaxial strain can increase Li+ conductivity in solid electrolytes.

Theoretical evidence supports strain as an effective enhancement method.

Potential pathway to meet commercial electrolyte performance standards.

Abstract

Room-temperature (RT) conductivity of most candidates for solid electrolytes of miniaturized lithium-ion batteries is still 1-2 orders of magnitude below commercial requirements, therefore several approaches are being pursued aiming the enhancement of such values. In this letter, we report for the first time direct theoretical evidence that epitaxial strain can be an efficient tool to reach this goal.