Abstract: Combinations of additives for use in electrolyte formulations that provide a number of desirable characteristics when implemented within batteries, such as reduction, suppression, and/or inhibition of undesirable gas generation over several cycles of charging and discharging, in some cases during operation at high temperature and in some cases during high temperature storage.

Abstract: Described herein are materials for use in electrolytes that provide a number of desirable characteristics when implemented within batteries, such as high stability during battery cycling up to high temperatures, high voltages, high discharge capacity, high coulombic efficiency, and excellent retention of discharge capacity and coulombic efficiency over several cycles of charging and discharging. In some embodiments, a high voltage electrolyte includes a base electrolyte and an additive compounds.

Abstract: An electrode for an electrochemical cell including an active electrode material and an intrinsically conductive coating wherein the coating is applied to the active electrode material by heating the mixture for a time and at a temperature that limits degradation of the cathode active material.

Abstract: A method of forming an electrode active material by reacting a metal fluoride and a reactant. The method includes a coating step and a comparatively low temperature annealing step. Also included is the electrode formed following the method.

Abstract: An electrode for an electrochemical cell including an active electrode material and an intrinsically conductive coating wherein the coating is applied to the active electrode material by heating the mixture for a time and at a temperature that limits degradation of the cathode active material.

Abstract: Described herein are materials for use in electrolytes that provide a number of desirable characteristics when implemented within batteries, such as high stability during battery cycling up to high temperatures, high voltages, high discharge capacity, high coulombic efficiency, and excellent retention of discharge capacity and coulombic efficiency over several cycles of charging and discharging. In some embodiments, a high voltage electrolyte includes a base electrolyte and a set of additive compounds, which impart these desirable performance characteristics.

Abstract: A cobalt-containing phosphate material can comprise lithium (Li) (or, alternatively or additionally other alkali metal(s)), cobalt (Co), phosphate (PO4), and at least two additional metals other than Li and Co (e.g., as dopants and/or metal oxides), and can have a molar ratio of Co to a total amount of Co and the additional metals (e.g., as dopants and/or metal oxides) of at least 0.2, at least 0.3, at least 0.5, at least 0.7, or at least about 0.75. The cobalt-containing phosphate material can have a molar ratio of Co to a total amount of Co and the additional metals (e.g., as dopants and/or metal oxides) ranging from 0.2 to 0.98, from 0.3 to 0.98, from 0.3 to 0.94, from 0.5 to 0.98, from 0.5 to 0.94, or alternatively from 0.5 to 0.9, from 0.7 to 0.9, or from 0.75 to 0.85.

Abstract: Described herein are materials for use in electrolytes that provide a number of desirable characteristics when implemented within batteries, such as high stability during battery cycling up to high temperatures, high voltages, high discharge capacity, high coulombic efficiency, and excellent retention of discharge capacity and coulombic efficiency over several cycles of charging and discharging. In some embodiments, a high voltage electrolyte includes a base electrolyte and an additive compounds.

Abstract: A cathode active material including a lithium metal oxide represented by Formula 1: Li[LixMeyM?z]O(2+d)??Formula 1 wherein x+y+z=1, 0<x<0.33, 0<z?0.1, and 0?d?0.1, Me is at least one metal selected from Mn, V, Cr, Fe, Co, Ni, Al, and B, and M? is at least one metal selected from Sc, Y, and La.

Abstract: Described herein are materials for use in electrolytes that provide a number of desirable characteristics when implemented within batteries, such as high stability during battery cycling up to high temperatures, high voltages, high discharge capacity, high coulombic efficiency, and excellent retention of discharge capacity and coulombic efficiency over several cycles of charging and discharging. In some embodiments, a high voltage electrolyte includes a base electrolyte and a set of additive compounds, which impart these desirable performance characteristics.

Abstract: A composition for forming an electrode. The composition includes a metal fluoride, such as copper fluoride, and a matrix material. The matrix material adds capacity to the electrode. The copper fluoride compound is characterized by a first voltage range in which the copper fluoride compound is electrochemically active and the matrix material characterized by a second voltage range in which the matrix material is electrochemically active and substantially stable. A method for forming the composition is included.

Abstract: A composition for forming an electrode. The composition includes a metal fluoride compound doped with a dopant. The addition of the dopant: (i) improves the bulk conductivity of the composition as compared to the undoped metal fluoride compound; (ii) changes the bandgap of the composition as compared to the undoped metal fluoride compound; or (iii) induces the formation of a conductive metallic network. A method of making the composition is included.

Abstract: An electrode for an electrochemical cell including an active electrode material and an intrinsically conductive coating wherein the coating is applied to the active electrode material by heating the mixture for a time and at a temperature that limits degradation of the cathode active material.

Abstract: A cobalt-containing phosphate material can comprise lithium (Li) (or, alternatively or additionally other alkali metal(s)), cobalt (Co), phosphate (PO4), and at least two additional metals other than Li and Co (e.g., as dopants and/or metal oxides), and can have a molar ratio of Co to a total amount of Co and the additional metals (e.g., as dopants and/or metal oxides) of at least 0.2, at least 0.3, at least 0.5, at least 0.7, or at least about 0.75. The cobalt-containing phosphate material can have a molar ratio of Co to a total amount of Co and the additional metals (e.g., as dopants and/or metal oxides) ranging from 0.2 to 0.98, from 0.3 to 0.98, from 0.3 to 0.94, from 0.5 to 0.98, from 0.5 to 0.94, or alternatively from 0.5 to 0.9, from 0.7 to 0.9, or from 0.75 to 0.85.

Abstract: A composition for forming an electrode. The composition includes a metal fluoride compound doped with a dopant. The addition of the dopant: (i) improves the bulk conductivity of the composition as compared to the undoped metal fluoride compound; (ii) changes the bandgap of the composition as compared to the undoped metal fluoride compound; or (iii) induces the formation of a conductive metallic network. A method of making the composition is included.

Abstract: A composition for use in a battery electrode including lithium-sulfur particles coated with a transition metal species bonded to a sulfur species. Methods and materials for preparing such a composition. Use of such a compound in a battery.

Abstract: A composition for use in a battery electrode comprising a compound including lithium, manganese, nickel, and oxygen. The composition is characterized by a powder X-ray diffraction pattern having peaks including 18.6±0.2, 35.0±0.2, 36.4±0.2, 37.7±0.2, 42.1±0.2, and 44.5±0.2 degrees 2? as measured using Cu K? radiation.

Abstract: An electrode for an electrochemical cell including an active electrode material and an intrinsically conductive coating wherein the coating is applied to the active electrode material by heating the mixture for a time and at a temperature that limits degradation of the cathode active material.

Abstract: A method of forming an electrode active material by reacting a metal fluoride and a reactant. The reactant can be a metal oxide, metal phosphate, metal fluoride, or a precursors expected to decompose to oxides. The method includes a milling step and an annealing step. The method can alternately include a solution coating step. Also included is the composition formed following the method.