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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.
키워드
Conducting polymer, Indole, Lithium rechargeable battery, Oligo-indole
KSP 제안 키워드
Conducting polyaniline, Conducting polymers, Discharge behavior, Electrochemical performance, Highly conducting, Positive electrode material, charge separation mechanism, discharge capacity, electric conductivity, electrochemical property, lithium rechargeable batteries