높은 이온전도도를 갖는 에테르기를 포함하는 전해질용 이온성 액체 제조방법

• Main Authors: YOON HYO SANG, SONG JUN YONG, LEE DONG YUB, KIM BYEONG SU, KIM WAN JOO, JOO SO KYOUNG, RYU JUNG BOK, CHOI JEONG CHUL
• Format: Patent
• Language: Korean
• Published: 29.03.2019
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SEMICONDUCTOR DEVICES

본 발명은 메칠이미다졸륨, 메칠피롤리디니움, 메칠피폐리디니움, 메칠몰포리니움 및 트리에틸암모니움에 메톡시에틸 에테르기를 포함하는 양이온을 갖고 테트라플로오로보레이트, 헥사플로오로포스페이트, 비스플로오로술포닐이미드, 비스트리플루오로 메탄술포닐이미드을 음이온으로 하는 이온성 액체들은 TGA 평균 388℃의 열적 안정성이 우수하고, 이온전도도가 40.0mS/cm 이상과 Electrochemical window가 5.1V 이상인 양이온에 에테르(Ether) 기를 포함하는 이온성 액체를 제공하기 위한 것이다. The objective of the present invention is to provide an ionic liquid comprising an ether group at a cation, wherein the ionic liquids, having a cation comprising a methoxyethyl ether group at methylimidazolium, methylpyrrolidinium, methylpyridinium, methylmorpholinium, and triethylammonium and having, as an anion, tetrafluoroborate, hexafluorophosphate, bisfluorosulfonylimide, and bistrifluoromethanesulfonylimide, have excellent thermal stability of a TGA average of 388°C, an ion conductivity of 40.0 mS/cm or higher, and an electrochemical window of 5.1 V or higher.