Anion-solvent synergistic modulation enables high-entropy solvation structures for ultra-low-temperature and high-rate lithium ion batteries.
Ultra-low-temperature operation of Li-ion batteries (LIBs) remains notably challenging because conventional carbonate electrolytes suffer from high Li+ desolvation barriers and large interfacial impedance, leading to rapid capacity fade. Here, we report a high-entropy solvation structure contributed by the synergistic...