Separator structure for secondary battery method for making the separator and the secondary battery using the same

The present invention is applicable to secondary battery-related technical fields, and relates to, for example, a separator for a lithium ion secondary battery, a manufacturing method thereof, and a secondary battery using the same. The present invention relates to a separator structure including a...

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Bibliographische Detailangaben
Hauptverfasser:	YOUNGMIN PI, SUMIN LEE, KEEYONG KIM, HONGJUNG KIM, JUCHUL LEE, MUNHYUK LIM, YONGKEON AHN, KYUNGHO JUNG, JUNHAN KWON, DONGWOOK LEE
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF ELECTRICITY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY NANOTECHNOLOGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS POLYSACCHARIDES PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention is applicable to secondary battery-related technical fields, and relates to, for example, a separator for a lithium ion secondary battery, a manufacturing method thereof, and a secondary battery using the same. The present invention relates to a separator structure including a support provided inside a secondary battery, wherein the support can include: a porous polymer matrix; nano-cellulose fibers dispersed and positioned in the matrix; and inorganic additives dispersed and positioned in the matrix. In addition, at least some of the inorganic additives can be attached to the nano-cellulose fibers and distributed in the matrix. 본 발명은 이차전지 관련 기술 분야에 적용 가능하며, 예를 들어 리튬 이온 이차전지를 위한 분리막, 그 제조 방법 및 이를 이용한 이차전지에 관한 것이다. 이러한 본 발명은, 이차전지 내부에 구비되는 지지체를 포함하는 분리막 구조에 있어서, 상기 지지체는, 다공성의 고분자 모체; 상기 모체에 분산되어 위치하는 나노 셀룰로오스 파이버; 및 상기 모체에 분산되어 위치하는 무기 첨가제를 포함할 수 있다. 또한, 상기 무기 첨가제 중 적어도 일부는 상기 나노 셀룰로오스 파이버에 부착되어 상기 모체 내에 분포될 수 있다.