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학술지 Electrochemical Performance of Chemically Synthesized Oligo-indole as a Positive Electrode for Lithium Rechargeable Batteries
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저자
류광선, 김광만
발행일
200804
출처
Journal of Applied Electrochemistry, v.38 no.4, pp.477-482
ISSN
1572-8838
DOI
https://dx.doi.org/10.1007/s10800-007-9461-7
협약과제
05IB1900, 초고용량 리튬 이차전지 양극 소재의 미세구조 및 열적안정성 연구, 류광선
초록
Indole monomer was chemically polymerized to produce polyindole (PI) powder for use as a positive electrode material for lithium rechargeable batteries. Although the PI obtained was an oligomer with a low molecular weight corresponding to just 3 indole units, its electrochemical properties exhibited high d.c. electric conductivity comparable to that of the highly conducting polyaniline-LiPF6 or LiAsF6. A charge separation mechanism was also suggested to describe charge/discharge behavior of the oligo-indole (OI) protonated and/or lithiated in the Li||OI battery. Moreover, the lithium rechargeable battery adopting the OI as a positive electrode showed good cycleability with a discharge capacity of ~ 55 mAh g-1, which did not decay until after more than 100 cycles. © 2007 Springer Science+Business Media B.V.
KSP 제안 키워드
Conducting polyaniline, Discharge behavior, Electrochemical performance, Highly conducting, Positive electrode material, charge separation mechanism, discharge capacity, electric conductivity, electrochemical property, lithium rechargeable battery, low molecular weight