PARTLY CROSSLINKED ADHESIVE-SUPPORTED POROUS FILM AS SEPARATOR OF BATTERY AND THE USE THEREOF

• Main Authors: KISHII YUTAKA, SATSUMA MICHIO, YAMAGUCHI MUTSUKO, KII KEISUKE, UETANI YOSHIHIRO, MURATA SHUUHEI, ICHIKAWA TOMOAKI
• Format: Patent
• Language: English; Korean
• Published: 20.05.2004
• Edition: 7
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PERFORMING OPERATIONS; POLISHES; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS AS ADHESIVES; WORKING-UP

PURPOSE: A partly crosslinked adhesive-supported porous film as a separator of a battery is provided, which can produce a battery efficiently by using as an electrode/separator laminate when producing the battery and can be used as a separator having a low heat-shrinkage at high temperature after producing the battery. CONSTITUTION: The porous film supports a partly crosslinked adhesive crosslinked partly by reacting a reactive polymer having a functional group with a multifunctional compound capable of reacting with the functional group, wherein the functional group is an activated hydrogen containing functional group like a hydroxyl group, a carboxyl group, or an amino group and the multifunctional compound is a multifunctional isocyanate compound or a multifunctional epoxy compound. The partly crosslinked adhesive is supported on the porous film in the supporting ratio of 5-95 wt.%.