Hierarchical-Structured RGOEGaIn Composites as Advanced Self-Healing Anode for Room-Temperature Liquid Metal Battery
© 2025 Wiley‐VCH GmbH.
| Publié dans: | Advanced materials (Deerfield Beach, Fla.). - 1998. - 37(2025), 14 vom: 10. Apr., Seite e2419060 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2025
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| Accès à la collection: | Advanced materials (Deerfield Beach, Fla.) |
| Sujets: | Journal Article hierarchical structure RGO@EGaIn in situ TEM liquid metal batteries self‐healing |
| Résumé: | © 2025 Wiley‐VCH GmbH. Gallium-based liquid metal (LM) has emerged as a promising candidate anode material for lithium-ion batteries (LIBs), exhibiting high theoretical capacity, excellent electrode kinetics, and unique self-healing ability. However, the liquid-solid-liquid transition during the electrochemical reactions can disrupt the solid electrolyte interphase (SEI) and damage the structural integrity, ultimately limiting the cycling stability. Here, hierarchical-structured reduced graphene oxide coated eutectic gallium-indium liquid metal particles (RGOEGaIn LMPs) are synthesized using a facile self-assembly strategy. The customized RGO@EGaIn electrode demonstrated impressive performance in both half-cell and full-cell configurations for LIBs. The morphological and phase transitions of RGO@EGaIn LMPs during the lithiation/delithiation processes are uncovered by real-time in situ transmission electron microscopy tests. It is clarified that the presence of RGO in the hierarchical structure buffers the volume expansion of LMPs from ≈160% to 125% and provides a fast pathway for the rapid transfer of ions and electrons during the electrochemical reaction, which effectively enhances the electrochemical performance of the electrode. This work introduces a straightforward and effective method for preparing high-performance room-temperature liquid metal electrodes, representing a significant step forward toward the commercial application of liquid metal batteries |
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| Description: | Date Revised 10.04.2025 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
| ISSN: | 1521-4095 |
| DOI: | 10.1002/adma.202419060 |