Print Email Facebook Twitter High entropy liquid electrolytes for lithium batteries Title High entropy liquid electrolytes for lithium batteries Author Wang, Q. (TU Delft RST/Storage of Electrochemical Energy) Zhao, C. (TU Delft RST/Storage of Electrochemical Energy) Wang, Jianlin (Chinese Academy of Sciences) Yao, Zhenpeng (Shanghai Jiao Tong University) Wang, Shuwei (Tsinghua University) Kumar, Sai Govind Hari (University of Toronto) Ganapathy, S. (TU Delft RID/TS/Instrumenten groep) Eustace, S.J. (TU Delft BT/Biocatalysis) Wagemaker, M. (TU Delft RST/Storage of Electrochemical Energy) Date 2023 Abstract High-entropy alloys/compounds have large configurational entropy by introducing multiple components, showing improved functional properties that exceed those of conventional materials. However, how increasing entropy impacts the thermodynamic/kinetic properties in liquids that are ambiguous. Here we show this strategy in liquid electrolytes for rechargeable lithium batteries, demonstrating the substantial impact of raising the entropy of electrolytes by introducing multiple salts. Unlike all liquid electrolytes so far reported, the participation of several anionic groups in this electrolyte induces a larger diversity in solvation structures, unexpectedly decreasing solvation strengths between lithium ions and solvents/anions, facilitating lithium-ion diffusivity and the formation of stable interphase passivation layers. In comparison to the single-salt electrolytes, a low-concentration dimethyl ether electrolyte with four salts shows an enhanced cycling stability and rate capability. These findings, rationalized by the fundamental relationship between entropy-dominated solvation structures and ion transport, bring forward high-entropy electrolytes as a composition-rich and unexplored space for lithium batteries and beyond. Subject OA-Fund TU Delft To reference this document use: http://resolver.tudelft.nl/uuid:5a55bc8f-6258-47a3-89c4-622ae68f51fa DOI https://doi.org/10.1038/s41467-023-36075-1 ISSN 2041-1723 Source Nature Communications, 14 (1) Part of collection Institutional Repository Document type journal article Rights © 2023 Q. Wang, C. Zhao, Jianlin Wang, Zhenpeng Yao, Shuwei Wang, Sai Govind Hari Kumar, S. Ganapathy, S.J. Eustace, M. Wagemaker, More Authors Files PDF s41467_023_36075_1.pdf 6.91 MB Close viewer /islandora/object/uuid:5a55bc8f-6258-47a3-89c4-622ae68f51fa/datastream/OBJ/view