Provided is a stacked electrode assembly including: a lowermost electrode arranged on a lowermost portion of the stacked electrode assembly; an uppermost electrode arranged on an uppermost portion of the stacked electrode assembly; at least one unit stacked body arranged between the lowermost electrode and the uppermost electrode and including a positive electrode, a negative electrode, and a separator, the separator being arranged between the positive electrode and the negative electrode; and a separator arranged between the lowermost electrode and the at least one unit stacked body, and between the at least one unit stacked body and the uppermost electrode. A capacity and energy density of a lithium battery may be improved by employing an electrode including a mesh electrode current collector as the lowermost electrode or the uppermost electrode of the stacked electrode assembly.

A structural component for a vehicle has a battery construction having a solid-electrolyte matrix material, a first layer of carbon fibres having a cathode-active coating, embedded in said solid-electrolyte matrix material, a second layer of carbon fibres without a cathode-active coating, embedded in said solid-electrolyte matrix material, and at least one electrically isolating barrier layer disposed between said first layer and said second layer. The structural component has a first collector layer and a second collector layer disposed on the first layer and the second layer, respectively, on a side that faces away from the barrier layer. The first collector layer and the second collector layer are configured from a flexible, moldable and porous layer of carbon allotropes.

A metal foil electrode comprising i) a reinforcement layer formed from a porous substrate, and ii) first and second layers of metal foil formed comprising lithium and/or sodium, wherein the reinforcement layer is disposed between the first and second metal foil layers and bonded (preferably pressure bonded) together to form a composite structure having a thickness of 100 microns or less.

A fuel electrode incorporates a first and second corrugated portion that are attached to each other at offset angles respect to their corrugation axis and therefore reinforce each other. A first corrugated portion may extend orthogonally with respect to a second corrugated portion. The first and second corrugated portions may be formed from metal wire and may therefore have a very high volumetric void fraction and a high surface area to volume ratio (sa/vol). In addition, the strands of the wire may be selected to enable high conductivity to the current collectors while maximizing the sa/vol. In addition, the shape of the corrugation, including the period distance, amplitude and geometry may be selected with respect to the stiffness requirements and electrochemical cell application factors. The first and second corrugated portions may be calendared or crushed to reduce thickness of the fuel electrode.

To increase the energy density of a secondary battery, minimize the possibility of fire and explosion, and minimize the dendrite formation problem, provided is a secondary battery, which includes a cathode material and an anode material, wherein the anode material includes an anode structure that is a sheet in which a plurality of yarns formed of carbon nanotube (CNT) fibers are woven.

A component for use in an energy storage device or an energy conversion device comprises a first part and a second part, wherein the first part comprises particles of a ceramic material, and the second part is provided by a sheet having a plurality of through-thickness apertures. The second part is at least partially embedded in the first part.

A hydraulic binder includes at least 70% by weight of a solid mineral compound consisting of at least one mixture of silica, alumina and alkaline-earth metal oxides, the total sum of CaO and MgO representing at least 10% by weight of the solid mineral compound, and an activation system of which at least 30% by weight is a phosphoric acid-derived salt. Construction products can obtained from a mortar composition including such a binder.

An electrochemical cell comprising an alkali metal negative electrode layer physically and chemically bonded to a surface of a negative electrode current collector via an intermediate metal chalcogenide layer. The intermediate metal chalcogenide layer may comprise a metal oxide, a metal sulfide, a metal selenide, or a combination thereof. The intermediate metal chalcogenide layer may be formed on the surface of the negative electrode current collector by exposing the surface to a chalcogen or a chalcogen donor compound. Then, the alkali metal negative electrode layer may be formed on the surface of the negative electrode current collector over the intermediate metal chalcogenide layer by contacting at least a portion of the metal chalcogenide layer with a source of sodium or potassium to form a layer of sodium or potassium on the surface of the negative electrode current collector over the metal chalcogenide layer.

In a method of manufacturing an electrochemical cell, a porous or non-porous metal substrate may be provided. A precursor solution may be applied to a surface of the metal substrate. The precursor solution may comprise a chalcogen donor compound dissolved in a solvent. The precursor solution may be applied to the surface of the metal substrate such that the chalcogen donor compound reacts with the metal substrate and forms a conformal metal chalcogenide layer on the surface of the metal substrate. A conformal lithium metal layer may be formed on the surface of the metal substrate over the metal chalcogenide layer.

An electrode for a battery, comprising an active material and a metallic fabric is disclosed. The metallic fabric comprises fibers being at least partially covered by a coating of nickel or copper, which comprises a layer and a plurality of protrusions protruding from the layer. The active material is attached on the protrusions. The metallic fabric provides a high electrical conductivity and a high mechanical stability, and demonstrates outstanding performance for the use as a current collector of battery.