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.

Provided is a wearable patch that can reliably interrupt the power supply from the cell after use and can be disposed of as it is. Moreover, provided is a sheet-type cell that can reliably interrupt the power supply after use and can be disposed of safely. The wearable patch is worn on the body and includes a functional element, a drive circuit unit that operates the functional element, and a cell as a power source. A cutting facilitating member is formed to allow a predetermined portion of the wearable patch to be cut with a force of 200 N or less so that the power supply from the cell to the drive circuit unit is interrupted.

A battery includes an anode having an alkali metal as the active material, a cathode having, for example, iron disulfide as the active material, and an increased electrolyte volume.

A battery includes an anode having an alkali metal as the active material, a cathode having, for example, iron disulfide as the active material, and an increased electrolyte volume.

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.

An additive, an electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery, the additive being represented by Chemical Formula 1: ##STR00001##

Provided is pouch battery including an electrode assembly, and a case in which the electrode assembly is sealed and housed; the electrode assembly including a stacked structure of a sheet cathode, a sheet separator, and a sheet anode; the sheet cathode including a positive electrode active material disposed on a current collector; the sheet anode is thin conductive sheet on which lithium metal reversibly deposits on a surface thereof during discharging; the sheet anode being made of a conductive material other than lithium and having a surface substantially free from lithium metal prior to charging the battery. The pouch battery design is flexible and lightweight and provides high power density, making it a suitable replacement for conventional lithium-ion primary batteries and thermal batteries in many applications. Power can be further increased by the application of external compression. Additives and formation conditions can be tailored for forming a solid-electrolyte interface (SEI).

The purpose of the present technology is to provide an electrode for power storage device and a power storage device that make it possible to involve more lithium ions in a charge-discharge reaction. A lithium-ion secondary battery has: a positive electrode current collector; a positive electrode active material layer on the positive electrode current collector; a negative electrode current collector; and a negative electrode active material layer on the negative electrode current collector. The negative electrode active material layer has a carbon nanowall. The carbon nanowall is capable of involving, in the charge-discharge reaction, two or more lithium ions per carbon atom in a single charge or discharge.

A lithium primary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode contains a positive electrode material mixture including Li.sub.xMnO.sub.2 where 0 ≤ x ≤ 0.05. The negative electrode contains at least one of metal lithium and a lithium alloy. The non-aqueous electrolyte contains an oxalate borate complex component and a cyclic imide component. In the non-aqueous electrolyte, the concentration of the oxalate borate complex component is 5.5 mass% or less, and the concentration of the cyclic imide component is 1 mass% or less. The mass ratio of the cyclic imide component to the oxalate borate complex component contained in the non-aqueous electrolyte is 0.02 or more and 10 or less.

A lithium primary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode contains a positive electrode material mixture including Li.sub.xMnO.sub.2 where 0 ≤ x ≤ 0.05. The negative electrode contains at least one of metal lithium and a lithium alloy. The non-aqueous electrolyte contains an oxalate borate complex component and a cyclic imide component. In the non-aqueous electrolyte, the concentration of the oxalate borate complex component is 5.5 mass% or less, and the concentration of the cyclic imide component is 1 mass% or less. The mass ratio of the cyclic imide component to the oxalate borate complex component contained in the non-aqueous electrolyte is 0.02 or more and 10 or less.