화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2015년 가을 (11/04 ~ 11/06, 제주국제컨벤션센터(ICCJEJU))
권호 19권 2호
발표분야 나노_포스터
제목 LiFePO4 nanoparticle and graphene loaded carbon nanofibers for use of lithium-ion battery cathodes.
초록 LiFePO4/Graphene/C nanofibers, in which LiFePO4 nanoparticles were encapsulated in graphene-containing carbon nanofiber matrix, were synthesized by electrospinning. Graphene was used in order to increase the conductivity of the composite. Polyimide (PI) fabricated by first electrospinning of the pre-polymer, poly(amid acid) ammonium salt (PAAS) then imidizing the electrospun nanofiber was used as the electrospinning media and the carbon source. The morphology and microstructure of LiFePO4/Graphene/C nanofiber were characterized using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Electrochemical performance of LiFePO4/Graphene/C nanofibers was evaluated in coin-type cells. Both graphene and PI  contribute to improve electrochemical performance of lithium batteries cathode sesulting in the enhancement of capacity and cycling ability.
저자 Hung Hai Pham, 박준서
소속 Hankyong National Univ.
키워드 electrospinning; Li ion battery; cathode; graphene
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