About 11 results
https://drivepatents.com/patents/1398978 · 17 Dec 2025
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 ...
https://drivepatents.com/patents/943643 · 4 May 2016
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 provide...
https://drivepatents.com/patents/952718 · 14 Jan 2015
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 i...
https://drivepatents.com/patents/965594 · 31 Dec 2014
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 a...
https://drivepatents.com/patents/967809 · 5 Nov 2014
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 a...
https://drivepatents.com/patents/968594 · 22 Oct 2014
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 charg...
https://drivepatents.com/patents/969131 · 8 Oct 2014
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 electro...
https://drivepatents.com/patents/972238 · 23 Jul 2014
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...
https://drivepatents.com/patents/977414 · 19 Mar 2014
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...
https://drivepatents.com/patents/981211 · 11 Dec 2013
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 copolyme...