Abstract: A method for preparing high nickel lithiated metal oxides that includes selecting one or more nickel precursors; at least one non-corrosive lithium salt; and a plurality of metal oxide or hydroxide precursors. The metal precursors and lithium salts are mixed together to form a mixture comprising: LixNiyMzN(1?y?z)O(2?a)Fa??(F-1) wherein x=1.0-1.1, 0.80?y?0.90, 0.03<z?0.15, and 0?a?0.05; M is Co or Fe; and N is Al, Mn, Fe, Ca, Mg, Ti, Cr, Nb, Mo, W, B, or a mixture thereof provided N may be Fe when M is Co. The mixture is subjected to sintering (1st step) in air at ?750° C. to form a powder. The powder is subjected to a 2nd sintering step in O2 at ?750° C. to form the high nickel lithiated metal oxides.

Abstract: A cell for use in an electrochemical cell having positive and negative electrodes. The positive electrode includes a current collector and a pre-lithiated active cathode material formed of one or more of Li1+xMn2O4, Li1+xNi0.5Mn1.5O4, Li1+xNiO2, Li1+xCoO2, Li1+xNiaCobMncAlO2, wherein x is in the range of 0.1 to 1.0; a+b+c+d=1; a?0.5; 0<b?0.3; 0?c?0.3; and 0?d?0.05. The negative electrode includes a current collector and an active anode material that is a mixture of at least carbon and a silicon material. The silicon material is silicon metal, SiOy, or a mixture or composite thereof with y ranging between 0?y<2. The carbon is graphite, soft carbon, or hard carbon. The cell has a positive electrode exhibiting a 1st cycle Coulombic efficiency (CEcathode) and a negative electrode exhibiting a 1st cycle Coulombic Efficiency (CEanode), such that CEcathode<CEanode.

Abstract: A cell for use in an electrochemical cell, that includes a positive electrode having a current collector, a pre-lithiated active cathode material according to the formula F-1 of Li1+xMn2O4, wherein x is in the range of 0.1 to 1.0, and an optional additional active cathode material; a negative electrode having a current collector and an optional carbonaceous material that exhibits a negligible capacity, wherein negligible capacity is defined as being a reversible capacity ratio between the carbonaceous material and the pre-lithiated active cathode material of <0.1.; and a non-flammable organic electrolyte, a polymeric or gel electrolyte, an inorganic electrolyte, or a combination thereof that is configured to conduct lithium ions.

Abstract: A metal ion cell that includes a positive electrode with a cathode active material configured to store and release metal ions: a negative electrode with an anode active material that operates at a potential that is not less than 0.6 volts (V) versus Li/Lit; and an electrolyte that incorporates one or more (e.g., lithium) metal salts and a solvent mixture that includes 3-methoxypropionitrile (MPN) and at least one linear carbonate. The MPN in the electrolyte may have a mass ratio of ?0.1 as compared to the at least one linear carbonate. The at least one linear carbonate includes one or more of dimethyl carbonate (DMC), diethyl carbonate (DEC), or ethyl methyl carbonate (EMC). The solvent mixture may also include a mixture of carbonates, such that the mass percentage of the linear carbonate ranges from 10% to 90% compared to the overall mass of the mixture of carbonates.

Abstract: A method for preparing high nickel lithiated metal oxides that includes selecting one or more nickel precursors; at least one non-corrosive lithium salt; and a plurality of metal oxide or hydroxide precursors. The metal precursors and lithium salts are mixed together to form a mixture comprising: wherein x = 1.0 - 1.1, 0.80 ? y ? 0.90, 0.03 < z ? 0.15, and 0 ? a ? 0.05; M is Co or Fe; and N is Al, Mn, Fe, Ca, Mg, Ti, Cr, Nb, Mo, W, B, or a mixture thereof provided N may be Fe when M is Co. The mixture is subjected to sintering (1st step) in air at ? 750° C. to form a powder. The powder is subjected to a 2nd sintering step in O2 at ? 750° C. to form the high nickel lithiated metal oxides.