Disclosed is a process for producing metal nanowires having a diameter or thickness from 2 nm to 100 nm, the process comprising: (a) preparing a source metal particulate having a size from 50 nm to 500 μm, selected from a transition metal, Al, Be, Mg, Ca, an alloy thereof, a compound thereof, or a combination thereof; (b) depositing a catalytic metal, in the form of nanoparticles or a coating having a diameter or thickness from 1 nm to 100 nm, onto a surface of the source metal particulate to form a catalyst metal-coated metal material, wherein the catalytic metal is different than the source metal material; and (c) exposing the catalyst metal-coated metal material to a high temperature environment, from 100° C. to 2,500° C., for a period of time sufficient to enable a catalytic metal-assisted growth of multiple metal nanowires from the source metal particulate.

The present invention is directed towards an electrodepositable coating composition comprising an electrochemically active material comprising a protective coating; an electrodepositable binder; and an aqueous medium. Also disclosed herein is a method of coating a substrate, as well as coated substrates and electrical storage devices.

A battery includes a cathode with a metal halide and an electrically conductive material, wherein the metal halide acts as an active cathode material; a porous silicon anode with a surface having pores with a depth of about 0.5 microns to about 500 microns, and a metal on the surface and in at least some of the pores thereof; and an electrolyte contacting the anode and the cathode, wherein the electrolyte includes a nitrile moiety.

A method of manufacturing an anode structure (10) for a lithium battery is described. The method includes a first deposition of lithium on a first flexible support (21) to provide a lithium anode-first sublayer (12-1) with a first lithium surface (31); a second deposition of lithium on a second flexible support (22) to provide a lithium anode-second sublayer (12-2) with a second lithium surface (32); and combining the lithium anode-first sublayer (12-1) and the lithium anode-second sublayer (12-2) by pressing the first lithium surface and the second lithium surface together to form a lithium metal anode layer (12). Further described are a lithium battery layer stack with an anode structure manufactured according to the described method, and a vacuum deposition system for manufacturing an anode structure as described herein.

A method for producing silicon-based anodes for secondary batteries carries out the following steps for producing an anode: —depositing a silicon layer on a metal substrate having grain boundaries, wherein the silicon layer has a first boundary surface directed towards the metal substrate, —heating the metal substrate using a heating unit to a temperature between 200° C. and 1000° C., —conditioning the region of the second boundary surface of the silicon layer that is facing away from the metal substrate using an energy-intensive irradiation during the heating, —generating polyphases in the region of the silicon layer and the metal substrate, made up of amorphous silicon and/or crystalline silicon of the silicon of the silicon layer and of crystalline metal of the metal substrate and of silicide and—generating crystalline metal of the metal substrate.

This invention relates in general to electroactive materials and a process for the preparation thereof. The electroactive particles comprise a comprise a porous particle framework, wherein the total pore volume of pores having pore diameter in the range from 3.5 to 100 nm is in the range from 0.3 to 2.4 cm3 per gram of the porous particle framework. The pores of the porous particle are at least partially occupied by a multilayer coating that is disposed on the internal pore surfaces of the porous particle framework. The multilayer coating comprises at least a first electroactive material layer, a second electroactive material layer, and a first interlayer material disposed between the first and second electroactive material layers.

The present disclosure relates to the technical field of energy storage, and in particular, relates to a positive electrode, a method for preparing the positive electrode and an electrochemical device. The positive electrode includes a current collector and a positive electrode active material layer that contains positive electrode active material and is arranged on at least one surface of the current collector. An inorganic layer having a thickness of 20 nm to 2000 nm is arranged on the surface of the at least one positive electrode active material layer away from the current collector. The inorganic layer is a porous dielectric layer containing no binder, and the inorganic layer has a porosity of 10%˜60%. The positive electrode active material layer according to the present disclosure significantly improves the cycle performance, high-temperature storage performance and safety of the electrochemical device.

Batteries, methods for recycling batteries, and methods of forming one or more electrodes for batteries are disclosed. The battery includes at least one of (i) a cathode including a nickel-rich material and a first sub-nanoscale metal oxide coating on the nickel-rich material; and (ii) an anode including an anode material and a second sub-nanoscale metal oxide coating disposed on the anode material.

Alkali metal secondary batteries that include anodes constructed from alkali metal foil applied to only one side of a porous current collector metal foil. Openings in the porous current collectors permit alkali metal accessibility on both sides of the anode structure. Such anode constructions enable the utilization of lower-cost and more commonly available alkali metal foil thickness, while still achieving high cell cycle life at a significantly reduced cost. Aspects of the present disclosure also include batteries with porous current collectors having increased volumetric and gravimetric energy densities, and methods of manufacturing anodes with porous current collectors.

A method for manufacturing an electrochemical device that may be selected from the group consisting of: lithium ion batteries with a capacity greater than 1 mAh, capacitors, supercapacitors, resistors, inductors, transistors, photovoltaic cells, fuel cells, implementing a method for manufacturing an assembly comprising a porous electrode and a porous separator comprising a porous layer deposited on a substrate having a porosity comprised between 20% and 60% by volume, and pores with an average diameter of less than 50 nm.