화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2013년 가을 (10/30 ~ 11/01, 대전컨벤션센터)
권호 17권 2호
발표분야 포스터-에너지저장.변환
제목 Polyimide/carbon black composite nanoencapsulating layers as a facile surface modification strategy for high-voltage lithium ion cathode materials
초록 Ion-conductive polyimide (PI)/electron-conductive carbon black (CB) composite nanocoating layers (referred to as “PI/CB coating layers”) are presented as a facile and scalable surface modification strategy for high-voltage lithium ion cathode materials (here, LiCoO2 (LCO) is chosen as a model system). The PI/CB coating layers exhibit a unique synergistic effect (i.e., boosted electronic conduction (from CB networks) in conjunction with suppression of unwanted interfacial side reactions between delithiated LCO and liquid electrolyte (due to PI nanothin films)), which thus exerts a beneficial influence on electrochemical performance and thermal stability of high-voltage cells.
저자 박장훈1, 김주명1, 이은호2, 김종수3, 심은기3, 이상영1
소속 1울산과학기술대, 2강원대, 3(주)솔브레인
키워드 lithium-ion batteries; high-voltage cathode materials; surface modification; polyimide; carbon black; ion/electron-conductive protective coating layers
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