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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, 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 (CEA-IRIG, CNRS, UGA, Grenoble INP) 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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