The present disclosure is directed to methods and embedding battery tab attachment structures within composites of electrode active materials and carbon nanotubes, which lack binder and lack collector foils, and the resulting self-standing electrodes. Such methods and the resulting self-standing electrodes may facilitate the use of such composites in battery and power applications.

Methods of applying as-prepared alkaline source materials for a secondary battery. The cathode includes an alkaline source material with or without coating including an alkali metal oxide, an alkali metal sulfide, an alkali metal salt, or a combination of any two or more thereof. An as-prepared spread coating layer for a secondary battery, the coating layer includes an alkaline source material, including an alkali metal oxide, an alkali metal sulfide, and an alkali metal salt, with or without coating, a conductive carbon, a catalyst, or a combination of any two or more thereof. An as-prepared electrolyte for a secondary battery, the electrolyte includes an alkaline source material including an alkali metal oxide, an alkali metal sulfide, an alkali metal salt, or a combination of any two or more thereof.

A disclosed film electrode includes an electrode base, and an active material layer formed on the electrode base, and a resin layer adhering to at least one of a peripheral portion of the active material layer and a surface of the active material layer in a direction extending along a plane of the electrode base.

Provided is a metal negative electrode. The metal negative electrode has a first surface and a second surface facing the first surface, and a plurality of grooves may be provided in the first surface.

Provided herein is a battery and an electrode. The battery may include two electrodes; and an electrolyte, wherein at least one electrode further includes: a nano-scale coated network, which includes one or more first carbon nanotubes electrically connected to one or more second carbon nanotubes to form a nano-scale network, wherein at least one of the one or more second carbon nanotubes is in electrical contact with another of the one or more second carbon nanotubes. The battery may further include an active material coating distributed to cover portions of the one or more first carbon nanotubes and portions of the one or more second carbon nanotubes, wherein a plurality of the one or more second carbon nanotubes are in electrical communication with other second carbon nanotubes under the active material coating. Also provided herein is a method of making a battery and an electrode.

The present invention relates to a method for manufacturing an electrode for a lithium secondary battery, wherein, at the time of manufacturing of an electrode for a lithium secondary battery, a drying speed can be reduced through the steps of: applying a dewatering process using a porous substrate to remove a considerable amount of solvent from electrode slurry in advance; performing pressurization in a state of the porous substrate, an electrode layer, and an electrode current collector; performing additional dewatering; and separating the porous substrate from the electrode layer and then drying the electrode layer, and thus the electrode productivity can be maximized without degradation of electrode performance.

Provided are methods of preparing a separator/anode assembly for use in an electric current producing cell, wherein the assembly comprises an anode current collector layer interposed between a first anode layer and a second anode layer and a porous separator layer on the side of the first anode layer opposite to the anode current collector layer, wherein the first anode layer is coated directly on the separator layer.

A main object of the present disclosure is to provide an anode active material with excellent capacity properties. The present disclosure achieves the object by providing an anode active material to be used in an alkaline storage battery, the anode active material including: a base material containing Ti and Cr, and including a BCC structure as a metastable phase; and a coating layer that coats the base material, and contains a catalyst metal and a metal with oxygen affinity that is more than oxygen affinity of Ti; wherein an oxide film is present in an interface between the coating layer and the base material; and when a first thickness T.sub.A (nm) and a second thickness T.sub.B(nm) of the oxide film are determined by Auger electron spectroscopy, a rate of the T.sub.A with respect to the T.sub.B, which is T.sub.A/T.sub.B is, for example, 1.50 or more.

An active material and a surface treatment method of the active material are provided. A surface of the active material may be treated with a coating layer including a first metal oxide containing lithium, and a second metal oxide.

Provided is a conductive carbon mixture which is to be used together with an electrode active material in manufacturing an electrode of an electricity storage device and enables the manufacture of the electricity storage device having a good cycle life. The conductive carbon mixture for manufacturing an electrode of an electricity storage device comprises an oxidized carbon having electrical conductivity and a different conductive carbon which is different from the oxidized carbon, wherein the oxidized carbon covers the surface of the different conductive carbon. The conductive carbon mixture is characterized in that the ratio of the peak intensity of the 2D band to the peak intensity of the D band in a Raman spectrum of the conductive carbon mixture is 55% or less relative to the ratio of the peak intensity of the 2D band to the peak intensity of the D band in a Raman spectrum of the different conductive carbon. This conductive carbon mixture covers the surface of the electrode active material in a particularly good manner and thus prolongs the cycle life of the electricity storage device.