Solubility-mediated sustained release enabling nitrate additive in carbonate electrolytes for stable lithium metal anode.
Resolving nanoscopic and mesoscopic heterogeneity of fluorinated species in battery solid-electrolyte interphases by cryogenic electron microscopy. Solubility of lithium salts formed on the lithium-ion battery negative electrode surface in organic solvents.
Nonpolar alkanes modify lithium-ion solvation for improved lithium deposition and stripping. High-efficiency lithium metal batteries with fire-retardant electrolytes. High-voltage lithium-metal batteries enabled by localized high-concentration electrolytes. Enabling high-voltage lithium-metal batteries under practical conditions. “Water-in-salt” electrolyte enables high-voltage aqueous lithium-ion chemistries. High rate and stable cycling of lithium metal anode. Highly fluorinated interphases enable high-voltage Li-metal batteries. Advances and issues in developing salt-concentrated battery electrolytes. Yamada, Y., Wang, J., Ko, S., Watanabe, E. Salt-rich solid electrolyte interphase for safer high-energy-density Li metal batteries with limited Li excess. Molecular design for electrolyte solvents enabling energy-dense and long-cycling lithium metal batteries. Regulating anions in the solvation sheath of lithium ions for stable lithium metal batteries. Non-flammable electrolyte enables Li-metal batteries with aggressive cathode chemistries. Monolithic solid–electrolyte interphases formed in fluorinated orthoformate-based electrolytes minimize Li depletion and pulverization. Electrolytes and interphases in Li-ion batteries and beyond. Corrosion of lithium metal anodes during calendar ageing and its microscopic origins. Identification of LiH and nanocrystalline LiF in the solid–electrolyte interphase of lithium metal anodes. Atomic structure of sensitive battery materials and interfaces revealed by cryo–electron microscopy. Correlating structure and function of battery interphases at atomic resolution using cryoelectron microscopy. Cryo-STEM mapping of solid–liquid interfaces and dendrites in lithium-metal batteries. Recent progress in understanding solid electrolyte interphase on lithium metal anodes. Reviving the lithium metal anode for high-energy batteries. Pathways for practical high-energy long-cycling lithium metal batteries. Regulating electrodeposition morphology of lithium: towards commercially relevant secondary Li metal batteries.
Understanding and applying Coulombic efficiency in lithium metal batteries. We expect this design principle and our findings to be expanded into developing electrolytes and solid–electrolyte interphases for Li metal batteries.
Based on electrochemical analyses, improved Coulombic efficiency (up to ~99.7%), reduced Li nucleation overpotential, stabilized Li interphases and prolonged cycle life of anode-free cells (~70 cycles at 80% of initial capacity) were achieved with the suspension electrolytes. Also, the suspension electrolyte design is applied in conventional and state-of-the-art high-performance electrolytes to demonstrate its applicability. Through theoretical and empirical analyses of Li 2O suspension electrolytes, the roles played by Li 2O in the liquid electrolyte and solid–electrolyte interphases of the Li anode are elucidated. Li 2O nanoparticles suspended in liquid electrolytes were investigated as a proof of concept. Herein, we report a suspension electrolyte design that modifies the Li + solvation environment in liquid electrolytes and creates inorganic-rich solid–electrolyte interphases on Li. Designing a stable solid–electrolyte interphase on a Li anode is imperative to developing reliable Li metal batteries.
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