Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Li+ solvation anion-aggregated solvation bi/tridentate chelation bis(2-methoxyethoxy)methane capacity enhancement coherent spinel twin boundaries dual-anion aggregation electrode/electrolyte interfaces electrolyte engineering high voltage applications high‐voltage cathodes hybrid gel polymer electrolytes lithium metal batteries lithium-metal batteries microstructure engineering nickel‐rich cathodes quasi‐solid state lithium metal batteries single FEC solvent tungsten modification