Molecular Design of Asymmetric Difluorinated Ether Electrolytes for Stable Operation of High-Voltage Lithium Metal Batteries.

Fluorination of electrolyte solvents is key to improving the cycling stability of high-voltage lithium metal batteries (LMBs), yet the critical role of fluorinated alkyl chain length in governing solvation and interphase chemistries remains unclear. Herein, we systematically engineered a series of methoxy ethoxy methane derivatives with tailored fluorinated alkyl groups to screen the optimal asymmetric difluorinated electrolytes for high-voltage LMBs. Spectroscopic and computational studies show that the ─CFH group in difluoroethoxy methoxy methane (DFME) facilitates balanced Li─F interactions, which are essential for ensuring efficient ion transport and maintaining oxidation stability.

New Oxyhalide Solid Electrolytes with Enhanced Conductivity for All-Solid-State Batteries.

Departing from conventional Li--X frameworks, we develop a Li--X oxyhalide chemistry (LiTaOCl, 0.8/3 ≤ ≤ 1.4/3) to overcome the conductivity limitation of halide-based solid electrolytes (SEs).

Local Structure Distortion and Oxygen Substitution in Zr-Based Halide Nanocomposites: Key to Enhanced Ionic Conductivity for All-Solid-State Batteries.

Designing highly conductive and (electro)chemically stable inorganic solid electrolytes (SEs) from cost-effective precursors is critical for developing all-solid-state batteries (ASSBs). Herein, we report a series of low-cost zirconium (Zr) -based halide nanocomposite SEs, LiZrTaOCl ( = 0.33, 0.

High-energy and fast-charging lithium metal batteries enabled by tuning Li-solvation via electron-withdrawing and lithiophobicity functionality.

The solvent fluorination almost always improves electrochemical stability of electrolytes against both lithium anodes and high-voltage cathodes in lithium metal batteries. However, how exactly fluorination affects Li-solvation and interphasial chemistries remains unclear, hindering rational design of electrolytes and interphases with both wide electrochemical stability window and fast ion transport kinetics that are required for energy-dense and fast-charging LMBs. Here we introduce the trifluoromethylation (-CF) at one end of 1,2-dimethoxyethane and generate 1,1,1-trifluoro-2-(2-methoxyethoxy) ethane, which as a single solvent of electrolyte simultaneously meets energy-dense and fast-charging requirements when dissolving 2 M lithium bis(fluorosulfonyl)imide.

Case Report: Rabies Vaccine-Induced Thrombotic Thrombocytopenic Purpura in a Patient With Systemic Lupus Erythematosus.

For patients with autoimmune diseases, vaccination is controversial. The use of vaccination in patients with autoimmune diseases is controversial. There are many reports of secondary thrombotic thrombocytopenic purpura cases after various vaccinations.