TECHNOLOGY FOCUS - ELECTRONICS - Preferred Components: The electrode is an anode. The core comprises a crystal structure that is body centered cubic during insertion and removal of lithium ions.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Method: The depositing of the layer of the ink onto a current collector involves tape casting, draw-down, spraying, or screen-printing. The method (M1) further involves collecting the nanoparticles in a medium (preferably gas medium comprising argon or helium, or liquid medium comprising at least one carbonate, glyme, or ionic liquid) that is inert to the nanoscale alloy particles. Preferred Components: The nanoscale particles comprise a core-shell structure comprising a lithium metal or lithium alloy core; and an insulating shell configured to conduct lithium ions to and from the core. The shell comprises lithium nitride. The medium comprises an inert liquid comprising at least one carbonate, glyme, or ionic liquid; a binding agent; at least one stability-enhancing additive or conductivity-enhancing additive (preferably lithium salts (especially lithium hexafluorophosphate, lithium trifluoromethanosulfonate, or lithium perchlorate) or graphite, carbon black, or a siloxane); and a polar solvent. The cooling gas comprises nitrogen gas. The lithium nitride shell has a thickness of 2-5 nanometers. The current collector comprises a metal foil (preferably copper foil). The metallic or semi-metallic alloying material comprises at least one metal or semi-metal selected from calcium (Ca), sodium (Na), barium (Ba), magnesium (Mg), aluminum (Al), tin (Sn), silicon (Si), copper (Cu), silver (Ag), gold (Au), and palladium (Pd).    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The polar solvent comprises diethyl acetamide, N-methyl pyrrolidone, dimethylsulfoxide, or hexamethyl phosphoramide.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The binding agent comprises polyvinylidene fluoride or poly tetrafluoroethylene. EXAMPLE - A nanoscale lithium (Li) alloy composition comprising Li-Mg (lithium-magnesium) nanometal powder (100 mg) was added to 1 M lithium hexafluorophosphate (50 mg) in 1:1 ethylene carbonate/diethyl carbonate and Timcal (RTM: conductive graphite) (3 mg) in a non-reactive container. The container was sealed and blended on a vortex mixer for 5 minutes. The resulting ink was applied to a copper current collector and tested in a 2032CR coin cell against a Li metal counter electrode. The open circuit potential of the cell was 2.7 mV vs. Li/Li+.