Abstract: A lithium-ion battery has anode active material, nickel-based cathode active material, and an electrolyte. The electrolyte has the following formulation: a carbonate-based solvent; LiPF6; vinylene carbonate; and an additive that satisfies the following: less than or equal to nine carbons; at least one unsaturated bond; a predicted oxidation potential Vox of 2.0<Vox<4.5; and a five-membered ring with a silicon heteroatom.

Abstract: A cathode material for an electrochemical cell has a cation disordered composition comprising a spinel crystal structure and a formula: wherein 0.0?x?0.25, 0.01?y?0.49, 0.01?z?0.49, 0.02?y+z?0.5, and A and B are different and independently selected from Y, Zr, Si, V, Nb, Fe, Cu, Ti, and Al.

Abstract: A cathode material includes a cation disordered composition comprising a spinel crystal structure and the following formula: Li1+yMn2—xAxO4+z, where 0.0<x?0.5, z and y are ?0.5, and A comprises Y, Zr, Si, V, Nb, Fe, Cu, Ti, or any combination thereof. A may be introduced into the cathode material by elemental substitution.

Abstract: A lithium battery cell has an anode having anode active material, an electrolyte, and a cathode comprising cathode active material having the following composition: LixM1yM2zOp wherein M1 and M2 are different from each other and each selected from Mn, Fe and V; 6?x?64; 1?y?35; 1?z?35; and 16?p?100.

Abstract: A lithium-ion battery includes an anode including graphite and a cathode nickel in a mole percent of about 60 percent or more, based on the total composition of the cathode. The lithium-ion battery includes liquid electrolyte including one or both of ethyl methyl carbonate and ethylene carbonate and an oxidant that is soluble in the liquid electrolyte and binds with an alkene having between 2 and 4 carbon atoms.

Abstract: A chiral azobenzene dopant with helical twisting power has a structure represented by the following formula (I): wherein Z and Z? are independently selected from the group consisting of naphthalene and phenanthrene; when Z or Z? is naphthalene, the naphthalene optionally has R3 at the 6 position and R4 at the 6? position; when Z or Z? is phenanthrene, the phenanthrene optionally has R3 at the 7 position and R4 at the 7? position; R1, R2, R3, and R4 are independently selected from the group consisting of an alkyl group having 1 to 20 carbons, an alkoxy group having 1 to 20 carbons, an aryl group having 6 to 20 carbons, and an aryloxy group having 6 to 20 carbons; and on any R1, R2, R3, and R4, on any CH2 a CH3 is optionally attached by replacing a hydrogen on a CH2.

Abstract: A chiral azobenzene dopant with helical twisting power has a structure represented by the following formula (I): wherein Z and Z? are independently selected from the group consisting of naphthalene and phenanthrene; when Z or Z? is naphthalene, the naphthalene optionally has R3 at the 6 position and R4 at the 6? position; when Z or Z? is phenanthrene, the phenanthrene optionally has R3 at the 7 position and R4 at the 7? position; R1, R2, R3, and R4 are independently selected from the group consisting of an alkyl group having 1 to 20 carbons, an alkoxy group having 1 to 20 carbons, an aryl group having 6 to 20 carbons, and an aryloxy group having 6 to 20 carbons; and on any R1, R2, R3, and R4, on any CH2 a CH3 is optionally attached by replacing a hydrogen on a CH2.

Abstract: A lithium-ion battery has anode active material, nickel-based cathode active material, and an electrolyte. The electrolyte has the following formulation: a carbonate-based solvent; LiPF6; vinylene carbonate; and an additive that satisfies the following: less than or equal to nine carbons; at least one unsaturated bond; a predicted oxidation potential Vox of 2.0<Vox<4.5; and a five member ring with a silicon heteroatom.

Abstract: A lithium-ion battery has anode active material, nickel-based cathode active material, and an electrolyte. The electrolyte has the following formulation: a carbonate-based solvent; LiPF6; vinylene carbonate; and an additive that satisfies the following: less than or equal to nine carbons; at least one unsaturated bond; a predicted oxidation potential Vox of 2.0<Vox<4.5; and a boron atom, a phosphorus atom or an S—N functional.