%0 Journal Article %T Glycerol-plasticized agarose separator suppressing dendritic growth in Li metal battery %+ Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM) %+ Réseau sur le stockage électrochimique de l'énergie (RS2E) %+ Polymères Composites et Hybrides (PCH - IMT Mines Alès) %+ Indian Institute of Engineering Science and Technology Shibpur (IIEST Shibpur) %A Blin, Pierre %A Boury, Bruno %A Taguet, Aurélie %A Touja, Justine %A Monconduit, Laure %A Patra, Snehangshu %< avec comité de lecture %@ 0144-8617 %J Carbohydrate Polymers %I Elsevier %V 247 %P 116697 %8 2020 %D 2020 %R 10.1016/j.carbpol.2020.116697 %K Carbohydrates %K Agarose %K Glycerol %K Dendritic growth suppression %K Li-metal batteries %Z Chemical Sciences/Polymers %Z Chemical Sciences/OtherJournal articles %X The growth of dendrite is the major limitation to the development of the Li-metal battery. To solve it, we disclose the preparation and performances of separator (MAGly) with a complete “green” formulation using biosourced and sustainable compounds: agarose as biopolymer along with glycerol as plasticizing agent. The natural biopolymer films are non-porous in nature and possess high elasticity with high stiffness along a wide temperature range (−35 to 180 °C), able to prevent the perpendicular dendritic Li growth. Moreover, they provide high Li+ ionic conductivity, which was evident from electrochemical symmetrical battery tests resulted in efficient plating/stripping of Li metal, without dendrite formation. Preliminary tests in Li battery, with LiFePO4 as positive electrode show very satisfying performance regarding the same test with the commercial Celgard® separator. Furthermore, the application of this new sustainable separator can be extended to post Li-metal system as demonstrated by the electrochemical tests realized with K+/K. %G English %2 https://imt-mines-ales.hal.science/hal-02900332/document %2 https://imt-mines-ales.hal.science/hal-02900332/file/glycerol-plasticized-agarose-separator.pdf %L hal-02900332 %U https://imt-mines-ales.hal.science/hal-02900332 %~ UNIV-NANTES %~ INSTITUT-TELECOM %~ ENSCP %~ UGA %~ CNRS %~ UNIV-AMU %~ CDF %~ UNIV-PICARDIE %~ UNIV-PAU %~ EM-ALES %~ ENSC-MONTPELLIER %~ ENSC-PARIS %~ INPG %~ ICG %~ PARISTECH %~ RS2E %~ INC-CNRS %~ PSL %~ CHIMIE %~ UNIV-MONTPELLIER %~ SITE-ALSACE %~ SORBONNE-UNIVERSITE %~ SORBONNE-UNIV %~ INSTITUTS-TELECOM %~ TEST-HALCNRS %~ ENSCP-PSL %~ CDF-PSL %~ UGA-EPE %~ SU-TI %~ UPPA-OA %~ U-PICARDIE %~ ALLIANCE-SU %~ TOULOUSE-INP %~ NANTES-UNIVERSITE %~ UNIV-NANTES-AV2022 %~ UT3-INP %~ UT3-TOULOUSEINP %~ UM-2015-2021 %~ TEST2-HALCNRS