A separator for a lithium-containing electrochemical cell is provided herein. The separator includes a porous substrate having a first side and an opposing second side and a coating layer disposed adjacent to at least the first side of the porous substrate. The coating layer includes three-dimensionally (3D) ordered porous ceramic particles. An electrochemical cell including such a separator is also provided herein. The electrochemical cell may or may not include a negative electrode.

The present invention generally relates to a method for preparing metal oxide nanosheets. In a preferred embodiment, graphene oxide (GO) or graphite oxide is employed as a template or structure directing agent for the formation of the metal oxide nanosheets, wherein the template is mixed with metal oxide precursor to form a metal oxide precursor-bonded template. Subsequently, the metal oxide precursor-bonded template is calcined to form the metal oxide nanosheets. The present invention also relates to a lithium-ion battery anode comprising the metal oxide nanosheets. In a further preferred embodiment, the battery anode may comprise a reduced template, which is reduced graphene oxide (rGO) or reduced graphite oxide.

The present application is generally directed to composites comprising a hard carbon material and an electrochemical modifier. The composite materials find utility in any number of electrical devices, for example, in lithium ion batteries. Methods for making the disclosed composite materials are also disclosed.

The present disclosure generally relates to a method for electroplating (or electrodeposition) a transition metal oxide composition that may be used in gas sensors, biological cell sensors, supercapacitors, catalysts for fuel cells and metal air batteries, nano and optoelectronic devices, filtration devices, structural components, and energy storage devices. The method includes electrodepositing the electrochemically active transition metal oxide composition onto a working electrode in an electrodeposition bath containing a molten salt electrolyte and a transition metal ion source. The electrode structure can be used for various applications such as electrochemical energy storage devices including high power and high-energy primary or secondary batteries.

A solid electrolyte interface is formed on a silicon monoxide electrode in a battery cell. While the solid electrolyte interface is being formed on the silicon monoxide electrode, the battery cell is charged for one or more initial cycles.

The present disclosure is directed to providing an electrolyte solution with a long cycle life by suppressing degradation of the battery characteristics under the high temperature condition. There is provided a nonaqueous electrolyte solution comprising a compound comprising 5 to 20 mass % of nitrogen atoms and 25 to 70 mass % of sulfur atoms or oxygen atoms in a molecule and having no disulfide bond in the molecule, wherein the compound comprises at least two sulfur atoms or oxygen atoms in the molecule.

The instant invention includes a spherical porous secondary silicon-based particle and methods for producing the same. The spherical porous secondary silicon-based particle is comprised of agglomerated primary silicon-based nanoparticles. The secondary particle comprises a carbon coating that reduces the effective exposed surface area of the primary particles to the electrolyte, thus improving first cycle efficiency. The secondary particle further comprises porous regions that enable the silicon nanoparticles to expand during lithiation. Advantages include ease of castability with micron-sized spherical particles, ease of mixing spherical particles, ease of flow for spherical particles in various processing steps, and ease with obtaining higher loading, which translates to higher areal capacity and overall energy density of the cell. A readily scalable process for producing the particles using low-cost materials and low-cost processing methods is disclosed.

A cobalt-free single crystal composite material, and a preparation method therefor and a use thereof. The cobalt-free single crystal material is of a core-shell structure, the core layer is the cobalt-free single crystal material, and the shell layer is prepared from TiNb.sub.2O.sub.7 and conductive lithium salt. The TiNb.sub.2O.sub.7 and the conductive lithium salt are selected as materials of the shell layer to coat the cobalt-free single crystal material, thereby improving the lithium ion conductivity of the cobalt-free single crystal material, and further improving the capacity and the first effect of the material.

A conductive additive a small amount of which is used for forming an active material layer with high electron conductivity is provided. An electrode for a secondary battery including a highly filled active material layer having a high density and containing a small amount of a conductive additive is provided. A secondary battery having high capacity per electrode volume is provided. The electrode includes an active material layer containing a plurality of particulate active materials and a plurality of fibrous carbon-containing compounds. Each of the carbon-containing compounds is a high molecular compound. A monomer of the high molecular compound contains at least one selected from thiophene, benzene, pyrrole, aniline, phenol, phthalocyanine, furan, azulene, and a derivative of any of these.

A main object of the present disclosure is to provide an anode active material layer with excellent cycle property. The present disclosure achieves the object by providing an anode active material layer to be used in an alkaline storage battery, the anode active material layer comprising a Zn based active material, and an additive; and the additive includes at least one kind of Mg, Sr and La; a solubility (25° C.) of the additive with respect to a potassium hydrate aqueous solution of concentration of 6 M is 120 mg/L or less; and a ratio of the additive with respect to the Zn based active material is 1 weight % or more and 60 weight % or less.