Tuning the Li Solvation Structure by a "Bulky Coordinating" Strategy Enables Nonflammable Electrolyte for Ultrahigh Voltage Lithium Metal Batteries.

In battery electrolyte design principles, tuning Li solvation structure is an effective way to connect electrolyte chemistry with interfacial chemistry. Although recent proposed solvation tuning strategies are able to improve battery cyclability, a comprehensive strategy for electrolyte design remains imperative. Here, we report a solvation tuning strategy by utilizing molecular steric effect to create a "bulky coordinating" structure.

A New Class of Ternary Compound for Lithium-Ion Battery: from Composite to Solid Solution.

Searching for high-performance cathode materials is a crucial task to develop advanced lithium-ion batteries (LIBs) with high-energy densities for electrical vehicles (EVs). As a promising lithium-rich material, LiMnO delivers high capacity over 200 mAh g but suffers from poor structural stability and electronic conductivity. Replacing Mn ions by relatively larger Sn ions is regarded as a possible strategy to improve structural stability and thus cycling performance of LiMnO material.

Chromium doped LiRuO as a positive electrode with superior electrochemical performance for lithium ion batteries.

Cr-Doped LiRuO of the LiRuCrO (x = 0, 0.02, 0.05, 0.