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Improving solid-state batteries through one-dimensional (1D) electrolyte confinement


​​​​​​​​​​​​​​​​​​​Researchers at CEA-IRAMIS have developed a carbon nanotube structure that creates a unique 1D environment to improve electrolyte conductivity. The concept, currently being developed in laboratories at Irig/SyMMES​, LITEN and AMU, could be used to manufacture safer batteries with higher energy and power potential than is currently the case.

Published on 4 April 2025

Liquid electrolytes are still widely used in lithium batteries, but pose a number of safety problems, such as internal short-circuiting, which can lead to fire or explosion... 

The alternative is to develop safer, high-performance solid electrolytes. With this in mind, an innovative concept has been developed at the Léon Brillouin Laboratory in Saclay (CEA-Iramis): one-dimensional (1D) confinement of the electrolytic medium to improve the ionic conductivity of electrolytes.

To pursue this approach, a collaboration was initially set up with CEA-LITEN, later joined by the SyMMES laboratory (STEP team) and the Institut de Chimie Radicalaire (AMU). This consortium has enabled us to understand the phenomena involved through a multi-technique study.​


Collaborations &​ contacts :

Jean-Marc Zanotti, UMR LLB/MMB CEA-CNRS et Didier Lairez (LSI)

Quentin Berrod, UMR Irig/SyMMES/STEP CEA-CNRS

Raphaël Ramos, CEA-Liten

Trang N. T. Phan et Didier Gigmes, Chimie radicalaire organique et polymères de spécialité – CROPS, Institut de Chimie Radicalaire – UMR 7273, Marseille.

Benoît CoasneLIPhy UMR CNRS-Université Grenoble Alpes.​


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