To solve the above problem, a method for manufacturing a top insulator configured to be inserted into a case of a secondary battery, according to an embodiment of the present invention includes: preparing a top insulator fabric by applying a silicone rubber to at least one surface of a glass fiber fabric formed by crossing weft yarns and warp yarns of glass fiber raw yarns; and punching the top insulator fabric.

To solve the above problem, a method for manufacturing a top insulator configured to be inserted into a case of a secondary battery, according to an embodiment of the present invention includes: preparing a top insulator fabric by applying a silicone rubber to at least one surface of a glass fiber fabric formed by crossing weft yarns and warp yarns of glass fiber raw yarns; and punching the top insulator fabric.

Battery including at least one unit cell formed by an anode, an electrolyte, and a cathode, defining a stack. The stack of the battery has a plurality of faces that includes two end faces opposite one another, two lateral faces opposite one another, and two longitudinal faces opposite one another. The first longitudinal face includes at least one anode connection zone and a second longitudinal face of the battery includes at least one cathode connection zone that is laterally opposite to the at least one anode connection zone. In a first longitudinal direction of the battery, each anode current-collecting substrate protrudes from each anode layer, from each layer of electrolyte material or layer of a separator impregnated with an electrolyte, from each cathode layer and from each cathode current-collecting substrate layer. In a second longitudinal direction of the battery that is opposite to the first longitudinal direction, each cathode current-collecting substrate protrudes from each anode layer, from each layer of electrolyte material, or layer of a separator impregnated with an electrolyte, from each cathode layer and from each anode current-collecting substrate layer.

A pouch-shaped battery case (and a pouch-shaped secondary battery including the same) includes a hidden-type gas pocket having a folded configuration such that, when gas is generated in the pouch-shaped case, the gas pocket unfolds to form a space for collecting the gas, whereby it is possible to reduce the extent of swelling of the battery when the gas is generated. The gas pocket may be configured so as not to occupy any space in a normal operating state of the battery, such that the gas pocket is unfolded to form the gas reception space only when the gas is generated, whereby it is possible to improve the efficiency of utilization of space in the battery.

Provided are a nano-sized thin sheet-like pseudoboehmite and a method of producing the same. The method of producing a sheet-like pseudoboehmite is performed by a one-pot method, unlike the conventional method of performing the reaction first in a basic solution, and then performing redispersion in an acidic solution, thereby simplifying the production process, and thus, may be useful in the production industry of a separator for a secondary battery, and the like.

An electrochemical system having a thermal barrier layer is provided. The thermal barrier layer includes a polymer network having an inorganic portion and an organic portion such as silicone or a polysiloxane polymer network. The polymer network may further include filler component dispersed therein such as oxidized polyacrylonitrile milled fiber, Aerogel, hollow glass microspheres, and mica.

A flexible printed circuit board with a multi-layer all solid-state lithium ion battery printed thereon is described. A flexible printed circuit board comprises at least one electrically insulating liquid crystal polymer or polyimide layer and at least one electrically conductive metal layer. The multi-layer all solid-state lithium ion battery comprises at least one anode, at least one cathode, and at least one UV curable solid electrolyte therebetween. The battery is encapsulated between the flexible printed circuit board and a layer of laminated aluminum foil on top of the multi-layer all solid-state lithium ion battery and adhered directly to the flexible printed circuit board.

A flexible printed circuit board with a multi-layer all solid-state lithium ion battery printed thereon is described. A flexible printed circuit board comprises at least one electrically insulating liquid crystal polymer or polyimide layer and at least one electrically conductive metal layer. The multi-layer all solid-state lithium ion battery comprises at least one anode, at least one cathode, and at least one UV curable solid electrolyte therebetween. The battery is encapsulated between the flexible printed circuit board and a layer of laminated aluminum foil on top of the multi-layer all solid-state lithium ion battery and adhered directly to the flexible printed circuit board.

A button-type secondary battery according to the present disclosure includes: an electrode assembly; a lower can configured to accommodate the electrode assembly; an upper can coupled to an opening of the lower can; a gasket configured to insulate a coupling portion between the lower can and the upper can; and a center part provided at a core portion of the electrode assembly, wherein the center part includes: a center pin inserted into the core portion of the electrode assembly; and an upper plate provided with an upper cover surface provided on an upper end of the center pin to protect an upper portion of the electrode assembly, wherein an edge of the upper cover surface is provided to be supported on an inner wall of the lower can.

A power storage device packaging material of the present disclosure includes: a laminate at least including a substrate layer, a barrier layer, and a sealant layer, which are disposed in this order; and an adhesive layer interposed between the substrate layer and the barrier layer, the adhesive layer containing a polyurethane-based compound made of a reaction product of at least one polyester polyol resin and at least one polyfunctional isocyanate compound, wherein the polyfunctional isocyanate compound contains an isocyanurate of isophorone diisocyanate, and a content of isocyanate groups derived from the isocyanurate of isophorone diisocyanate in the polyfunctional isocyanate compound is 5 mol % to 100 mol % relative to a total amount of isocyanate groups contained in the polyfunctional isocyanate compound of 100 mol %.