An electrode assembly for use in a battery may include a mandrel and one or more insulative portions. The insulative portions may be formed about and may extend from one or more end regions of a battery mandrel. Further, insulative portions may electrically insulate one or more elements of the electrode assembly from each other.

An electrocatalyst including carbon and a nanosheet supported on the carbon. The nanosheet includes a metal ruthenium nanosheet, and a platinum atomic layer formed on an entire surface of the metal ruthenium nanosheet. The metal ruthenium nanosheet is a monoatomic layer, and the platinum atomic layer is a monoatomic layer or a monoatomic layer laminated body.

Provided are electrochemically active secondary particles that provide excellent capacity and improved cycle life. The particles are characterized by a plurality of nanocrystals with small average crystallite size. The reduced crystallite size reduces impedance generation during cycling thereby improving capacity and cycle life. Also provided are methods of forming electrochemically active materials, as well as electrodes and electrochemical cells employing the secondary particles.

Materials and methods for coating an electrochemically active electrode material for use in a lithium-ion battery are provided. In one example, an electrochemically active electrode material comprises: a polymer coating applied directly to an exterior surface of the electrochemically active electrode material; a metal plating catalyst adhered to the continuous polymer; and a continuous metal coating that completely covers the metal catalyst and continuous polymer coating. The electrochemically active electrode material may comprise a powder comprising one or more secondary particles, and the polymer and metal coatings may be applied to exterior surfaces of these secondary particles.

A method of manufacturing lithium-metal nitride including suspending a lithium-metal-oxide-powder (LMOP) within a gaseous mixture, incrementally heating the suspended LMOP to a holding temperature of between 400 and 800 degrees Celsius such that the LMOP reaches the holding temperature, and maintaining the LMOP at the holding temperature for a time period in order for the gaseous mixture and the LMOP to react to form a lithium-metal nitride powder (LMNP).

A positive electrode composition for a non-aqueous secondary battery, including: titanium boride particles; and a positive electrode active material comprising lithium transition metal complex oxide particles that comprise nickel in a composition and have a layered structure. The titanium boride particles comprise an oxygen component in a content of greater than or equal to 1.5 wt % and less than or equal to 2.9 wt %. A content of the titanium boride particles relative to the lithium transition metal complex oxide particles is less than or equal to 1.5 mol % in titanium equivalent terms.

A method including collecting exhaust gas comprising carbon dioxide (CO.sub.2) at a wellsite to provide a collected exhaust gas, separating CO.sub.2 from the collected exhaust gas to provide a separated CO.sub.2, and forming an alcohol product utilizing at least a portion of the separated CO.sub.2. The alcohol product can include methanol, ethanol, a precursor thereof, or a combination thereof.

The secondary battery includes an electrode assembly including a first electrode plate and a second electrode plate whereon first and second electrode active materials, and first and second electrode tabs are formed, respectively, and including a separator disposed between the first and second electrode plates while overlapping with the first and second electrode plates; and a planarizing member disposed on at least one of first and second ends that are opposite to each other in a longitudinal direction of the electrode assembly, wherein the planarizing member covers a stepped surface exposed on the at least one of the first and second ends so as to planarize the stepped surface. In the secondary battery, the stepped surface of an end of the electrode assembly is planarized.

The present disclosure provides a lithium-rich electrode plate of a lithium-ion battery and a preparation method thereof. The preparation method of the lithium-rich electrode plate of the lithium-ion battery comprises steps of: (1) in a protective gas environment, melting a lithium ingot to obtain a melting lithium; (2) in a vacuum environment, heating and drying ceramic particles to obtain dried and anhydrous ceramic particles; (3) in a protective gas environment, adding the dried and anhydrous ceramic particles into the melting lithium, stirring to make them uniformly mixed to obtain a modified melting lithium; (4) in a protective gas environment, uniformly coating the modified melting lithium on a surface of an electrode plate to be lithium rich to form a lithium-rich layer, which is followed by cooling to room temperature to obtain a lithium-rich electrode plate of a lithium-ion battery. The lithium-rich electrode plate is prepared according to the preparation method.

A button cell includes a housing, the housing having a cell cup with a flat bottom area, and a cell top with a flat top area, and further includes an electrode-separator assembly winding disposed within the housing, the electrode-separator assembly winding including a multi-layer assembly that is wound in a spiral shape about an axis. The multi-layer assembly includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The button cell additionally includes a first output conductor between a first end face of the electrode-separator assembly winding and a first of the flat bottom area or the flat top area, and a second output conductor between a second end face of the electrode-separator assembly winding and a second of the flat bottom area or the flat top area. Furthermore, the button cell includes a first insulator and a second insulator.