Abstract: A active material for a rechargeable lithium battery, a manufacturing method, and a rechargeable lithium battery are provided, the positive active material including lithium nickel-based composite oxide particles having a molar content (e.g., amount) of nickel of greater than or equal to about 80 mol % based on the total element excluding lithium and oxygen and containing at least one element selected from B, Sb, and Nb, a first coating layer disposed on the surface of the particles and containing at least one element selected from B, Sb, and Nb, and a second coating layer disposed on the first coating layer and containing a metal phosphate.

Abstract: Disclosed herein are electrolytes and electrochemical devices. The electrochemical devices comprise cathodes that include nickel-rich layered lithium transition metal oxides, lithium-rich layered transition-metal oxides, lithium manganese-based spinel oxides, lithium polyanion-based compounds, and combinations thereof. The electrolytes include a lithium imide salt, an aprotic acyclic carbonate solvent, and an additive, wherein the additive comprises a metal salt, an aprotic solvent, or a combination thereof. The electrolyte can be stable at a voltage of 4.3 V or above vs. Li/Li+.

Abstract: Described herein are electrodes, electrochemical cells, methods of making electrodes and methods of making electro-chemical cells. The electrodes described herein have an interface layer or material that can stabilize reversible alkali metal deposition. The interface material may correspond to or be a solid-electrolyte interphase that can allow alkali metal ions to transmit through and be deposited below the interface material. The interface material can prevent dendrite formation and/or decomposition of the electrolyte, enabling use of lithium metal safely in a secondary (i.e., rechargeable) electrochemical cell. The interface material may comprise a combination of one or more metals, one or more chalcogens, and one or more other elements or organic functional groups.

Abstract: Described herein are low or no-cobalt materials useful as electrode active materials in a cathode for lithium or lithium-ion batteries. For example, compositions of matter are described herein, such as electrode active materials that can be incorporated into an electrode, such as a cathode. The disclosed electrode active materials exhibit high specific energy and voltage, and can also exhibit high rate capability and/or long operational lifetime.

Abstract: A method of preparing a composite positive electrode active material for a lithium secondary battery includes surface-treating a nickel-based active material using carbon dioxide to form a lithium carbonate layer on the surface of the nickel-based active material, mixing the nickel-based active material having the lithium carbonate layer on the surface thereof with a metal precursor including at least one metal selected from cobalt (Co), aluminum (Al), magnesium (Mg), and gallium (Ga) to prepare a mixture, and heat-treating the mixture. A composite positive electrode active material for a lithium secondary battery may be obtained according to the method; and used in a positive electrode for a lithium secondary battery.

Abstract: Described herein are multilayer composite foil materials, as well as methods of making and using multilayer composite foil materials. The composite foil materials can comprise different layers of different metals which may have differing activity toward an active metal, such as lithium. The different layers may allow the composite foil material to include layers that are more active towards the active metal, providing for electrochemical activity, and other layers that are less active towards the active metal, and serving as structural layers. The multilayer composite foils are useful as anodes of electrochemical cells, such as lithium ion cells.

Abstract: Disclosed herein are multiphase metal anodes useful in non-aqueous batteries. The anodes include at least one active metal and at least one conductive metal.

Abstract: Described herein are low or no-cobalt materials useful as electrode active materials in a cathode for lithium or lithium-ion batteries. For example, compositions of matter are described herein, such as electrode active materials that can be incorporated into an electrode, such as a cathode. The disclosed electrode active materials exhibit high specific energy and voltage, and can also exhibit high rate capability and/or long operational lifetime.

Abstract: A method of preparing a composite positive electrode active material for a lithium secondary battery includes surface-treating a nickel-based active material using carbon dioxide to form a lithium carbonate layer on the surface of the nickel-based active material, mixing the nickel-based active material having the lithium carbonate layer on the surface thereof with a metal precursor including at least one metal selected from cobalt (Co), aluminum (Al), magnesium (Mg), and gallium (Ga) to prepare a mixture, and heat-treating the mixture. A composite positive electrode active material for a lithium secondary battery may be obtained according to the method; and used in a positive electrode for a lithium secondary battery.

Abstract: Described herein are low or no-cobalt materials useful as electrode active materials in a cathode for lithium or lithium-ion batteries. For example, compositions of matter are described herein, such as electrode active materials that can be incorporated into an electrode, such as a cathode. The disclosed electrode active materials exhibit high specific energy and voltage, and can also exhibit high rate capability and/or long operational lifetime.

Abstract: Described herein are low or no-cobalt materials useful as electrode active materials in a cathode for lithium or lithium-ion batteries. For example, compositions of matter are described herein, such as electrode active materials that can be incorporated into an electrode, such as a cathode. The disclosed electrode active materials exhibit high specific energy and voltage, and can also exhibit high rate capability and/or long operational lifetime.

Abstract: Disclosed herein are multiphase metal anodes useful in non-aqueous batteries. The anodes include at least one active metal and at least one conductive metal.

Abstract: Disclosed herein are electrolytes and electrochemical devices. The electrochemical devices comprise cathodes that include nickel-rich layered lithium transition metal oxides, lithium-rich layered transition-metal oxides, lithium manganese-based spinel oxides, lithium polyanion-based compounds, and combinations thereof. The electrolytes include a lithium imide salt, an aprotic acyclic carbonate solvent, and an additive, wherein the additive comprises a metal salt, an aprotic solvent, or a combination thereof. The electrolyte can be stable at a voltage of 4.3 V or above vs. Li/Li+.

Abstract: The present disclosure relates to a cathode for a Lithium-Sulfur (Li—S) battery including an electrically conductive, porous shell and a sulfur-based core enclosed within the shell. The electrically conductive, porous substantially encloses the sulfur-based core on a macro-scale and substantially blocks passage of polysulfides from the cathode. The present disclosure further includes Li—S batteries containing such cathodes and methods of assembling such cathodes and batteries.

Abstract: The present disclosure relates to aqueous batteries in which a mediator-ion solid state electrolyte provides ion channels through which an alkali metal ion passes during operation of the batteries, but which blocks passage of the catholyte or anolyte.

Abstract: The present disclosure relates to a metal-air battery, such as a zinc (Zn)-air battery with a decoupled cathode, an acidic catholyte, an alkaline anode electrolyte, and a solid electrolyte between the catholyte and the anode electrolyte.

Abstract: The present invention provides compositions and methods of making Sn-MCx-C and Sb-MOx-C nanostructured anode compositions that exhibit excellent capacity retention with high capacity and rate capability that alleviate the volume expansion encountered with alloy anodes during the charge-discharge process.

Abstract: Disclosed herein are membraneless direct liquid fuel cells comprising an anode comprising an anode catalyst; a cathode comprising a cathode catalyst; an aqueous solution comprising a fuel, an electrolyte, and water; an oxygen source in electrochemical contact with the cathode catalyst; wherein the anode catalyst and the cathode catalyst are in electrochemical contact with the aqueous solution; wherein the anode catalyst is catalytically active for the oxidation of the fuel; wherein the cathode catalyst is catalytically active for the reduction of oxygen and is substantially catalytically inactive for the oxidation of the fuel. Also disclosed herein are catalysts that are catalytically active for the oxygen reduction reaction and/or the oxygen evolution reaction and substantially catalytically inactive for the oxidation reaction of a fuel.

Abstract: The present disclosure relates to a cathode for a Li—S battery including a first carbon layer, a second carbon layer, and a S-based cathode active material composition between the first and second carbon layers. At least one of the first and second carbon layers allows passage of lithium ions, while substantially preventing passage of polysulfides. Such a carbon layer may include a nanocarbon paper. The nanocarbon paper may include curved carbon nanotubes attached to a carbon nanofiber skeleton to form a binder-free SP2-hydridized carbon framework.

Abstract: The current disclosure relates to an anode material with the general formula MySb-M?Ox—C, where M and M? are metals and M?Ox—C forms a matrix containing MySb. It also relates to an anode material with the general formula MySn-M?Cx—C, where M and M? are metals and M?Cx—C forms a matrix containing MySn. It further relates to an anode material with the general formula Mo3Sb7—C, where —C forms a matrix containing Mo3Sb7. The disclosure also relates to an anode material with the general formula MySb-M?Cx—C, where M and M? are metals and M?Cx—C forms a matrix containing MySb. Other embodiments of this disclosure relate to anodes or rechargeable batteries containing these materials as well as methods of making these materials using ball-milling techniques and furnace heating.