A pasting carrier for a lead-acid battery. The pasting carrier includes a nonwoven fiber mat having a thickness between 5 and 50 mils, the nonwoven fiber mat being composed of a plurality of entangled glass microfibers.

A pasting carrier for a lead-acid battery. The pasting carrier includes a nonwoven fiber mat having a thickness between 5 and 50 mils, the nonwoven fiber mat being composed of a plurality of entangled glass microfibers.

In the manufacture of pasted current collectors for bipolar batteries, a method of making pasted substrates includes several steps. The substrates can be a plastic sheet, an embedded plastic mesh, a metal mesh, an absorbent glass mat (AGM), or some other material. One step involves applying paste material to an elongate strip of substrate material. Another step involves cutting the elongate strip of substrate material into multiple individual substrates. Further steps can involve punching via a rotary punch, crush cutting, ultrasonic cutting, concealing lateral sections via folding, and/or using one or more mask overlays.

In the manufacture of pasted current collectors for bipolar batteries, a method of making pasted substrates includes several steps. The substrates can be a plastic sheet, an embedded plastic mesh, a metal mesh, an absorbent glass mat (AGM), or some other material. One step involves applying paste material to an elongate strip of substrate material. Another step involves cutting the elongate strip of substrate material into multiple individual substrates. Further steps can involve punching via a rotary punch, crush cutting, ultrasonic cutting, concealing lateral sections via folding, and/or using one or more mask overlays.

A manufacturing method for a non-aqueous electrolyte secondary battery includes preparing a battery assembly, and performing an initial charging on the battery assembly. In the initial charging, a differential capacity curve of the battery assembly has a first peak voltage at which a first layer is formed on the electrode body and a second peak voltage at which a second layer is formed on the electrode body. The initial charging includes forming the first layer by stopping charging for a first stop time after charging to a first specified voltage that is set between the first peak voltage and the second peak voltage, and forming a second layer with charging performed to a second specified voltage that is set higher than the second peak voltage after forming the first layer.

According to a method for producing a nanostructured electrode for an electrochemical cell, in which active material is applied to an electrically conductive substrate, the active material is deposited on the electrically conductive substrate by magnetron sputtering in one process step, a ceramic target comprising an electrode material having an additional carbon proportion between 0.1 and 25% by weight is used, the substrate being kept at temperatures between 400° C. and 1200° C. during the deposition, in such a way that a fibrous porous network is formed.

The present invention provides carbon-nanotube (CNT)-polymer-metal composite substrate products, each product including a first current collector including at least one carbon nanotube (CNT) mat and a high conducting metallic element in electrical connection with a first tab, the high conducting metallic element bound to the at least one carbon nanotube mat, and optionally including a second current collector including a metallic conducting element in electrical connection with a second tab, a separator material separating between the first and second current collectors, an electrolyte solution disposed between the first collector and the second collector and a housing configured to house the first collector, second collector, separator material electrolyte solution and active material.

The present invention provides carbon-nanotube (CNT)-polymer-metal composite substrate products, each product including a first current collector including at least one carbon nanotube (CNT) mat and a high conducting metallic element in electrical connection with a first tab, the high conducting metallic element bound to the at least one carbon nanotube mat, and optionally including a second current collector including a metallic conducting element in electrical connection with a second tab, a separator material separating between the first and second current collectors, an electrolyte solution disposed between the first collector and the second collector and a housing configured to house the first collector, second collector, separator material electrolyte solution and active material.

The present invention relates to a method of preparing a pouch type secondary battery, and particularly to a method of preparing a pouch type secondary battery which includes preparing a pouch type preliminary secondary battery by accommodating an electrode assembly in an inner space of a pouch type case, disposing a metallic ultrasonic member by being closely attached to both surfaces of the pouch type preliminary secondary battery, injecting a composition for a gel polymer electrolyte into the pouch type preliminary secondary battery, applying ultrasonic vibration to the pouch type preliminary secondary battery while pressurizing the pouch type preliminary secondary battery using the ultrasonic member, performing formation on the pouch type preliminary secondary battery, curing the composition for a gel polymer electrolyte, and degassing, wherein the ultrasonic member is maintained at a temperature of 30° C. to 80° C., and the pressurizing of the pouch type preliminary secondary battery is performed while applying a pressure of 0.1 kgf/cm.sup.2 to 3,000 kgf/cm.sup.2 per area of the pouch type preliminary secondary battery.

A method for producing a button cell includes: providing a metal cell cup having a cell cup plane region; providing a metal cell top having a cell top plane region; providing a cylindrical electrode winding, the electrode winding being a multi-layer assembly wound in a spiral shape, the multi-layer assembly including an electrode formed from a current collector; connecting a conductor to the current collector; placing the electrode winding into the cell top; inserting the cell top into the cell cup to form a housing in which a strip-shaped portion of the conductor lies flat between (i) an end side of the electrode winding and (ii) a plane region of the cell cup plane region or the cell top plane region; and welding, after forming the housing, the strip-shaped portion of the conductor to a surface of the plane region located in the interior of the housing.