A microstructure comprises a plurality of interconnected units wherein the units are formed of graphene tubes. The graphene tubes may be formed by photo-initiating the polymerization of a monomer in a pattern of interconnected units to form a polymer microlattice, removing unpolymerized monomer, coating the polymer microlattice with a metal, removing the polymer microlattice to leave a metal microlattice, depositing graphitic carbon on the metal microlattice, converting the graphitic carbon to graphene, and removing the metal microlattice.

The aim of the invention is to provide a particularly planar component that is as simple as possible to produce and has an optimized stability. In order to achieve said aim, a component is proposed which comprises or is formed from a polymer matrix material and at least one non-compressible filler, wherein an average proportion of the at least one non-compressible filler is preferably approximately 75 wt. % or more, based on the total mass of the component and/or based on a local mass of the component in a locally compacted region of the component, wherein the component has one or more attachment regions for attaching the component to an additional component, and wherein a material of the component is compressed at least in the one or more attachment regions.

The aim of the invention is to provide a particularly planar component that is as simple as possible to produce and has an optimized stability. In order to achieve said aim, a component is proposed which comprises or is formed from a polymer matrix material and at least one non-compressible filler, wherein an average proportion of the at least one non-compressible filler is preferably approximately 75 wt. % or more, based on the total mass of the component and/or based on a local mass of the component in a locally compacted region of the component, wherein the component has one or more attachment regions for attaching the component to an additional component, and wherein a material of the component is compressed at least in the one or more attachment regions.

The present disclosure relates to a method for producing a tubular welding electrode comprising the steps of providing a strip of metal material having a length and first and second surfaces, wherein at least the first surface of the strip is at least substantially coated with nickel or a nickel alloy and then copper or a copper alloy, forming the strip into a U shape along the length, filling the U shape of the strip with a granular powder flux, and mechanically closing the U shape to form a sheath of nickel- and copper-coated metal material that substantially encases the granular powder flux, thus forming a tubular welding electrode. In certain embodiments, the metal material may be steel. In certain other embodiments, the metal material may be nickel or a nickel alloy, which may be at least substantially coated with copper or a copper alloy.

A first apparatus includes a mobile battery powered device comprising a battery cover. The battery cover includes a socket recess. The apparatus includes a mating tool for the socket recess. The mating tool is integral to the mobile battery powered device. The mating tool and socket recess correspond in size and shape.

A separator including: a porous polymer substrate having a plurality of pores; and a porous coating layer on at least one surface of the porous polymer substrate. The porous coating layer comprises inorganic particles, core-shell type polymer particles having a core portion and a shell portion surrounding the core portion, and a binder polymer positioned on the whole or a part of the surface of the inorganic particles and core-shell type polymer particles to connect and fix the inorganic particles and core-shell type polymer particles with one another. The core portion has a glass transition temperature, T.sub.g, higher than the shell portion in the core-shell type polymer particles. The ratio of the average diameter of the core-shell type polymer particles to the average diameter of the inorganic particles is 80% to 200%.

The present application discloses a battery cell module and a battery system. The battery cell module includes a plurality of battery cell assemblies. Each of the battery cell assemblies includes a battery cell, an end cover, and a base. A first end of the battery cell is connected to the end cover, and a second end of the battery cell is connected to the base. End covers of adjacent ones of the battery cell assemblies are detachably connected to each other, and bases of the adjacent ones of the battery cell assemblies are detachably connected to each other.

The present invention relates to an apparatus and method for manufacturing a secondary battery. The method for manufacturing the secondary battery, in which a plurality of unit cells are seated on a separator sheet and folded to manufacture a folded cell, comprises: a supply step of allowing the plurality of unit cells to move through a moving unit so as to supply the unit cells toward the separator sheet; and a seating step of allowing the plurality of unit cells to sequentially drop onto a top surface of the separator sheet, wherein the unit cells are seated on the separator sheet so that the unit cells are spaced a set gap value from each other.

This invention discloses a paper processing device, comprising a bottom block, a connecting cavity fixedly arranged in the bottom block, a penetrating cavity communicated with and arranged in the lower end wall of the connecting cavity. The penetrating cavity is communicated with the exterior space. A lifting motor is fixedly arranged in the lower end wall of the connecting cavity, the upper end wall of output shaft of which is fixedly provided with a driving pulley. A driven pulley in the connecting cavity is arranged on one side of the driving pulley. The lifting motor works to drive the driving pulley to rotate to drive the driven pulley to rotate, so an inner threaded block is driven to rotate to drive a threaded rod to move upwards; then a stirring fan is driven to enter a reaction cavity. The automatic structure adopted by this device realizes automation of paper processing.

An energy storage device is equipped with a container having a container body and a lid body, which closes an opening of the container body. An elongated welded part which is a welded portion between the container body and the lid body, is formed on the container. The welded part has a first welded part and a second welded part arranged in a row in a lengthwise direction of the welded part, wherein a width of the second welded part in a widthwise direction of the welded part is set larger than a width of the first welded part in the widthwise direction. A gas release vent is disposed on the lid body, wherein the second welded part is disposed on a lateral side of the gas release vent, and a length of the second welded part in the lengthwise direction is set larger than a length of the gas release vent in the lengthwise direction.