A lithium-ion battery separator with high-temperature resistance, a preparation method thereof and a lithium-ion battery prepared therefrom fall within the field of lithium-ion battery separators. The separator has a thickness of 3.5-30 µm, a porosity of 30-80%, an adjustable pore size of 20-2000…
Improved battery separators, base films or membranes, batteries, cells, devices, systems, vehicles, and/or methods of making and/or using such separators, films or membranes, batteries, cells, devices, systems, vehicles, and/or methods of enhancing battery or cell charge rates, charge capacity…
A moldable composite (29, 200) with high heat resistance and noise absorption properties utilizes nonwoven fabrics (24) including a heat resistance additive. The composite (29,200) comprising nonwoven fabrics (24 and a film (20). The composite that provides both superior acoustic performance and…
This disclosure relates to a film for a tire inner liner film that may exhibit uniform excellent physical properties over all directions when applied to a tire, and may secure excellent durability and fatigue resistance in a tire manufacturing process or in an automobile running process, a method…
Disclosed is a method of manufacturing a porous separator, specifically, a method of manufacturing a porous separator including an elastic material, a separator manufactured by the method, and a secondary battery including the separator. According to one aspect, there is provided a porous separator…
Provided are a polyolefin microporous membrane produced by forming a gel-like molding using a polyolefin resin containing polypropylene, and stretching the molding in at least one direction, followed by washing, the polyolefin microporous membrane having an injection of electrolyte of 20 seconds or…
The present invention provides a propylene-based resin microporous film which has excellent electrolyte solution retention property, and can provide a lithium ion battery in which a decrease in discharge capacity is highly reduced even after repeated charge and discharge. [0002] The propylene-based…
The present invention provides a propylene-based resin microporous film which has excellent lithium ion permeability, can constitute a high-performance lithium ion battery, and can prevent a short circuit between a positive electrode and a negative electrode due to dendrites. [0002] The…
Provided is a method for producing a propylene-based resin microporous film capable of forming a high-performance lithium ion battery. The method for producing a propylene-based resin microporous film includes an extrusion step of melt-kneading a propylene-based resin in an extruder, and extruding…
A polyolefin microporous membrane formed of a polypropylene-based resin composition comprising 20 to 95% by mass of a polypropylene-based resin having (polypropylene)/(propylene copolymer) (mass ratio) of 90/10 to 0/100 and 5 to 80% by mass of an inorganic filler, wherein a melting point of the…
A polyolefin microporous membrane formed of a polyolefin resin, as a main component, comprising 50 to 99% by mass of polypropylene and 1 to 50% by mass of propylene-±-olefin copolymer, wherein a content of the ±-olefin in the propylene-±-olefin copolymer is more than 1% by mass and 15% by mass or…
Disclosed is a laminated separator including a first polyolefin microporous layer and a second polyolefin microporous layer which is laminated on the first polyolefin microporous layer and which is different from the first polyolefin microporous layer, wherein at least one of the first microporous…